ApMon Class Reference

Data structure used for sending monitoring data to a MonaLisa module. More...

#include <ApMon.h>

Collaboration diagram for ApMon:

[legend]

List of all members.

Public Member Functions
	ApMon (char *initsource) throw (runtime_error)
	Initializes an ApMon object from a configuration file or URL.
	ApMon (int nDestinations, char **destinationsList) throw (runtime_error)
	Initializes an ApMon data structure from a vector of strings.
	ApMon (int nDestinations, char **destAddresses, int *destPorts, char **destPasswds) throw (runtime_error)
	Initializes an ApMon data structure, using arrays instead of a file.
	~ApMon ()
	ApMon destructor.
int	sendParameter (char *clusterName, char *nodeName, char *paramName, int valueType, char *paramValue) throw (runtime_error)
	Sends a parameter and its value to the MonALISA module.
int	sendTimedParameter (char *clusterName, char *nodeName, char *paramName, int valueType, char *paramValue, int timestamp) throw (runtime_error)
	Sends a parameter and its value to the MonALISA module, together with a timestamp.
int	sendParameter (char *clusterName, char *nodeName, char *paramName, int paramValue) throw (runtime_error)
	Sends an integer parameter and its value to the MonALISA module.
int	sendParameter (char *clusterName, char *nodeName, char *paramName, float paramValue) throw (runtime_error)
	Sends a parameter of type float and its value to the MonALISA module.
int	sendParameter (char *clusterName, char *nodeName, char *paramName, double paramValue) throw (runtime_error)
	Sends a parameter of type double and its value to the MonALISA module.
int	sendParameter (char *clusterName, char *nodeName, char *paramName, char *paramValue) throw (runtime_error)
	Sends a parameter of type string and its value to the MonALISA module.
int	sendParameters (char *clusterName, char *nodeName, int nParams, char **paramNames, int *valueTypes, char **paramValues) throw (runtime_error)
	Sends a parameter of type string and its value to the MonALISA module.
int	sendTimedParameters (char *clusterName, char *nodeName, int nParams, char **paramNames, int *valueTypes, char **paramValues, int timestamp) throw (runtime_error)
	Sends a set of parameters and their values to the MonALISA module, together with a timestamp.
bool	getConfCheck ()
	Returns the value of the confCheck flag.
long	getRecheckInterval ()
	Returns the value of the time interval (in seconds) between two recheck operations for the configuration files.
void	setRecheckInterval (long val)
	Sets the value of the time interval (in seconds) between two recheck operations for the configuration files.
void	setConfRecheck (bool confRecheck, long interval)
	Enables/disables the periodical check for changes in the configuration files/URLs.
void	setConfRecheck (bool confRecheck)
	Enables/disables the periodical check for changes in the configuration files/URLs.
void	setJobMonitoring (bool jobMonitoring, long interval)
	Enables/disables the periodical sending of datagrams with job monitoring information.
void	setJobMonitoring (bool jobMonitoring)
	Enables/disables the job monitoring.
long	getJobMonitorInterval ()
	Returns the interval at which job monitoring datagrams are sent.
bool	getJobMonitoring ()
	Returns true if the job monitoring is enabled, and false otherwise.
void	setSysMonitoring (bool sysMonitoring, long interval)
	Enables/disables the periodical sending of datagrams with system monitoring information.
void	setSysMonitoring (bool sysMonitoring)
	Enables/disables the system monitoring.
long	getSysMonitorInterval ()
	Returns the interval at which system monitoring datagrams are sent.
bool	getSysMonitoring ()
	Returns true if the system monitoring is enabled, and false otherwise.
void	setGenMonitoring (bool genMonitoring, int nIntervals)
	Enables/disables the periodical sending of datagrams with general system information.
void	setGenMonitoring (bool genMonitoring)
	Enables/disables the sending of datagrams with general system information.
bool	getGenMonitoring ()
	Returns true if the sending of general system information is enabled and false otherwise.
void	addJobToMonitor (long pid, char *workdir, char *clusterName, char *nodeName) throw (runtime_error)
	Adds a new job to the list of the jobs monitored by ApMon.
void	removeJobToMonitor (long pid) throw (runtime_error)
	Removes a job from the list of the jobs monitored by ApMon.
void	setSysMonClusterNode (char *clusterName, char *nodeName)
	This function is called by the user to set the cluster name and the node name for the system monitoring datagrams.
void	setMaxMsgRate (int maxRate)
	This sets the maxim number of messages that are send to MonALISA in one second.
Static Public Member Functions
static void	setLogLevel (char *newLevel_s)
	Sets the ApMon logging level.
static void	errExit (char *msg)
	Displays an error message and exits with -1 as return value.
Protected Member Functions
void	initialize (char *filename, bool firstTime) throw (runtime_error)
	Initializes an ApMon object from a configuration file.
void	constructFromList (int nDestinations, char **destinationsList) throw (runtime_error)
	Initializes an ApMon object from a list with URLs and destination hosts.
void	initialize (int nDestinations, char **destList, bool firstTime) throw (runtime_error)
	Initializes an ApMon object from a list with URLs and destination hosts.
void	loadFile (char *filename, int *nDestinations, char **destAddresses, int *destPorts, char **destPasswds) throw (runtime_error)
	Parses a configuration file which contains addresses, ports and passwords for the destination hosts and puts the results in the vectors given as parameters.
void	arrayInit (int nDestinations, char **destAddresses, int *destPorts, char **destPasswds) throw (runtime_error)
	Internal function that initializes an ApMon data structure.
void	arrayInit (int nDestinations, char **destAddresses, int *destPorts, char **destPasswds, bool firstTime) throw (runtime_error)
	Internal function that initializes an ApMon data structure.
void	addToDestinations (char *line, int *nDestinations, char *destAddresses[], int destPorts[], char *destPasswds[])
	Parses the string line, which has the form hostname:port, and adds the hostname and the port to the lists given as parameters.
void	getDestFromWeb (char *url, int *nDestinations, char *destAddresses[], int destPorts[], char *destPasswds[], ConfURLs &confURLs) throw (runtime_error)
	Gets a configuration file from a web location and adds the destination addresses and ports to the lists given as parameters.
void	encodeParams (int nParams, char **paramNames, int *valueTypes, char **paramValues, int timestamp) throw (runtime_error)
	Encodes in the XDR format the data from a ApMon structure.
void	initMonitoring ()
	Initializes the monitoring configurations and the names of the parameters included in the monitoring datagrams.
void	sendJobInfo ()
	Sends datagrams containing information about the jobs that are currently being monitored.
void	sendOneJobInfo (MonitoredJob job)
	Sends datagrams with monitoring information about the specified job to all the destination hosts.
void	updateJobInfo (MonitoredJob job)
	Update the monitoring information regarding the specified job.
void	sendSysInfo ()
	Sends datagrams with system monitoring information to all the destination hosts.
void	updateSysInfo ()
	Update the system monitoring information with new values obtained from the proc/ filesystem.
void	sendGeneralInfo ()
	Sends datagrams with general system monitoring information to all the destination hosts.
void	updateGeneralInfo ()
	Update the general monitoring information.
void	setBackgroundThread (bool val)
	Sets the value of the confCheck flag.
long	getCrtRecheckInterval ()
	Returns the actual value of the time interval (in seconds) between two recheck operations for the configuration files.
void	setCrtRecheckInterval (long val)
void	freeConf ()
	Frees the data structures needed to hold the configuratin settings.
void	parseXApMonLine (char *line)
	Parses an xApMon line from the configuration file and sets the corresponding parameters in the ApMon object.
void	initSocket () throw (runtime_error)
	Initializes the UDP socket used to send the datagrams.
void	parseConf (FILE *fp, int *nDestinations, char **destAddresses, int *destPorts, char **destPasswds) throw (runtime_error)
	Parses the contents of a configuration file.
bool	shouldSend ()
	Decides if the current datagram should be sent (so that the maximum number of datagrams per second is respected in average).
Protected Attributes
char *	clusterName
	The name of the monitored cluster.
char *	nodeName
	The name of the monitored node.
char *	sysMonCluster
	The cluster name used when sending system monitoring datagrams.
char *	sysMonNode
	The node name used when sending system monitoring datagrams.
int	nDestinations
	The number of destinations to send the results to.
char **	destAddresses
	The IP addresses where the results will be sent.
int *	destPorts
	The ports where the destination hosts listen.
char **	destPasswds
	Passwords for the MonALISA hosts.
char *	buf
	The buffer which holds the message data (encoded in XDR).
int	dgramSize
	The size of the data inside the datagram (header not included).
int	sockfd
	Socket descriptor.
bool	confCheck
	If this flag is true, the configuration file / URLs are periodically rechecked for changes.
int	nInitSources
	The number of initialization sources.
char **	initSources
	The name(s) of the initialization source(s) (file or list).
int	initType
long	recheckInterval
	The configuration file and the URLs are checked for changes at this numer of seconds (this value is requested by the user and will be used if no errors appear when reloading the configuration).
long	crtRecheckInterval
	If the configuration URLs cannot be reloaded, the interval until the next attempt will be increased.
pthread_t	bkThread
	Background thread which periodically rechecks the configuration and sends monitoring information.
pthread_mutex_t	mutex
	Used to protect the general ApMon data structures.
pthread_mutex_t	mutexBack
	Used to protect the variables needed by the background thread.
pthread_mutex_t	mutexCond
	Used for the condition variable confChangedCond.
pthread_cond_t	confChangedCond
	Used to notify changes in the monitoring configuration.
bool	recheckChanged
	These flags indicate changes in the monitoring configuration.
bool	jobMonChanged
bool	sysMonChanged
bool	haveBkThread
	If this flag is true, the background thread is created (but not necessarily started).
bool	bkThreadStarted
	If this flag is true, the background thread is started.
bool	stopBkThread
	If this flag is true, there was a request to stop the background thread.
bool	autoDisableMonitoring
	If this flag is set to true, when the value of a parameter cannot be read from proc/, ApMon will not attempt to include that value in the next datagrams.
bool	sysMonitoring
	If this flag is true, packets with system information taken from /proc are periodically sent to MonALISA.
bool	jobMonitoring
	If this flag is true, packets with job information taken from /proc are periodically sent to MonALISA.
bool	genMonitoring
	If this flag is true, packets with general system information taken from /proc are periodically sent to MonALISA.
long	jobMonitorInterval
	Job/System monitoring information obtained from /proc is sent at these time intervals.
long	sysMonitorInterval
int	genMonitorIntervals
	General system monitoring information is sent at a time interval equal to genMonitorIntervals * sysMonitorInterval.
int	nSysMonitorParams
	Number of parameters that can be enabled/disabled by the user in the system/job/general monitoring datagrams.
int	nJobMonitorParams
int	nGenMonitorParams
char *	sysMonitorParams [MAX_SYS_PARAMS]
char *	genMonitorParams [MAX_GEN_PARAMS]
char *	jobMonitorParams [MAX_JOB_PARAMS]
int	actSysMonitorParams [MAX_SYS_PARAMS]
int	actGenMonitorParams [MAX_GEN_PARAMS]
int	actJobMonitorParams [MAX_JOB_PARAMS]
ConfURLs	confURLs
int	nMonJobs
	The number of jobs that will be monitored.
MonitoredJob *	monJobs
	Array which holds information about the jobs to be monitored.
long	lastModifFile
	The last time when the configuration file was modified.
time_t	lastJobInfoSend
char	username [MAX_STRING_LEN]
	The name of the user who owns this process.
char	groupname [MAX_STRING_LEN]
	The group to which the user belongs.
char	myHostname [MAX_STRING_LEN]
	The name of the host on which ApMon currently runs.
char	myIP [MAX_STRING_LEN]
	The main IP address of the host on which ApMon currently runs.
int	numIPs
	The number of IP addresses of the host.
char	allMyIPs [20][20]
	A list with all the IP addresses of the host.
int	numCPUs
	The number of CPUs on the machine that runs ApMon.
bool	sysInfo_first
time_t	lastSysInfoSend
	The moment when the last system monitoring datagram was sent.
double	lastSysVals [MAX_SYS_PARAMS]
double	currentSysVals [MAX_SYS_PARAMS]
int	sysRetResults [MAX_SYS_PARAMS]
double	currentJobVals [MAX_JOB_PARAMS]
int	jobRetResults [MAX_JOB_PARAMS]
double	currentGenVals [MAX_GEN_PARAMS]
int	genRetResults [MAX_GEN_PARAMS]
double	currentProcessStates [NLETTERS]
char	cpuVendor [100]
char	cpuFamily [100]
char	cpuModel [100]
char	cpuModelName [200]
char	interfaceNames [20][20]
	The names of the network interfaces.
int	nInterfaces
	The number of network interfaces.
double	lastBytesSent [20]
	The total number of bytes sent through each interface, when the previous system monitoring datagram was sent.
double	lastBytesReceived [20]
double	lastNetErrs [20]
	The total number of network errors for each interface, when the previous system monitoring datagram was sent.
double *	currentNetIn
	The current values for the net_in, net_out, net_errs parameters.
double *	currentNetOut
double *	currentNetErrs
double	currentNSockets [4]
	The number of open TCP, UDP, ICM and Unix sockets.
double	currentSocketsTCP [20]
	The number of TCP sockets in each possible state (ESTABLISHED, LISTEN, .
char *	socketStatesMapTCP [20]
	Table that associates the names of the TCP sockets states with the symbolic constants.
int	maxMsgRate
long	prvTime
double	prvSent
double	prvDrop
long	crtTime
long	crtSent
long	crtDrop
double	hWeight
int	instance_id
	Random number that identifies this instance of ApMon.
int	seq_nr
	Sequence number for the packets that are sent to MonALISA.
Friends
class	ProcUtils
void *	bkTask (void *param)
	This function is executed in a background thread and has two roles: it automatically sends the system/job monitoring parameters (if the user requested) and it checks the configuration file/URLs for changes.

---

Detailed Description

Data structure used for sending monitoring data to a MonaLisa module.

The data is packed in UDP datagrams, in XDR format. A datagram has the following structure:

• header which contains the ApMon version and the password for the MonALISA host and has the following syntax: v:<ApMon_version>p:<password>
• cluster name (string)
• node name (string)
• number of parameters (int)
• for each parameter: name (string), value type (int), value
  There are two ways to send parameters: 1) a single parameter in a packet (with the function sendParameter() which has several overloaded variants 2) multiple parameters in a packet (with the function sendParameters())

Since v1.6 ApMon has the xApMon extension, which can be configured to send periodically, in a background thread, monitoring information regarding the system and/or some specified jobs.

Definition at line 212 of file ApMon.h.

---

Constructor & Destructor Documentation

ApMon::ApMon

(

char *

initsource

)

throw (runtime_error)

Initializes an ApMon object from a configuration file or URL.

Parameters:

filename

The name of the file/URL which contains the addresses and the ports of the destination hosts, and also the passwords (see README for details about the structure of this file).

Definition at line 61 of file ApMon.cpp.

                       {

  if (initsource == NULL)
    throw runtime_error("[ ApMon() ]  No conf file/URL provided");

  if (strstr(initsource, "http://") == initsource) {
    char *destList[1];
    destList[0] = initsource;
    constructFromList(1, destList);
  } else {
    nInitSources = 1;
    initType = FILE_INIT;
    initSources = (char **)malloc(nInitSources * sizeof(char *));
    if (initSources == NULL)
      throw runtime_error("[ ApMon() ] Error allocating memory.");

    initSources[0] = strdup(initsource);
    initMonitoring();

    initialize(initsource, true);
  }
}

ApMon::ApMon	(	int	nDestinations,
		char **	destinationsList
	)			throw (runtime_error)

Initializes an ApMon data structure from a vector of strings.

The strings can be of the form hostname[:port] [passwd] or can be URLs from where the hostnames are to be read.

Definition at line 142 of file ApMon.cpp.

                                                                           {
  constructFromList(nDestinations, destinationsList);
}

ApMon::ApMon	(	int	nDestinations,
		char **	destAddresses,
		int *	destPorts,
		char **	destPasswds
	)			throw (runtime_error)

Initializes an ApMon data structure, using arrays instead of a file.

Parameters:

	nDestinations	The number of destination hosts where the results will be sent.
	destAddresses	Array that contains the hostnames or IP addresses of the destination hosts.
	destPorts	The ports where the MonaLisa modules listen on the destination hosts.
	destPasswds	The passwords for the MonALISA hosts.

Definition at line 357 of file ApMon.cpp.

                     {
  initMonitoring();

  arrayInit(nDestinations, destAddresses, destPorts, destPasswds);
}

ApMon::~ApMon

(

)

ApMon destructor.

Definition at line 568 of file ApMon.cpp.

              {
  int i;

  if (bkThreadStarted) {
    if (getJobMonitoring()) {
      /* send a datagram with job monitoring information which covers
         the last time interval */
      sendJobInfo();
    }
  }

  pthread_mutex_lock(&mutexBack);
  setBackgroundThread(false);
  pthread_mutex_unlock(&mutexBack);

  pthread_mutex_destroy(&mutex);
  pthread_mutex_destroy(&mutexBack);
  pthread_mutex_destroy(&mutexCond);
  pthread_cond_destroy(&confChangedCond);

  free(clusterName);
  free(nodeName);
  free(sysMonCluster); free(sysMonNode);

  freeConf();

  free(monJobs);
  for (i = 0; i < nInitSources; i++) {
    free(initSources[i]);
  }
  free(initSources);

  free(buf);
#ifndef WIN32
  close(sockfd);
#else
  closesocket(sockfd);
  WSACleanup();
#endif
}

---

Member Function Documentation

void ApMon::addJobToMonitor	(	long	pid,
		char *	workdir,
		char *	clusterName,
		char *	nodeName
	)			throw (runtime_error)

Adds a new job to the list of the jobs monitored by ApMon.

Parameters:

	pid	The job's PID.
	workdir	The working directory of the job. If it is NULL or if it has a zero length, directory monitoring will be disabled for this job.
	clusterName	The cluster name associated with the monitoring data for this job in MonALISA.
	nodeName	The node name associated with the monitoring data for this job in MonALISA.

Definition at line 1292 of file ApMon.cpp.

                                                                 {
  if (nMonJobs >= MAX_MONITORED_JOBS)
    throw runtime_error("[ addJobToMonitor() ] Maximum number of jobs that can be monitored exceeded.");
  MonitoredJob job;
  job.pid = pid;
  if (workdir == NULL)
    strcpy(job.workdir, "");
  else
    strcpy(job.workdir, workdir);

 if (clusterName == NULL || strlen(clusterName) == 0)
    strcpy(job.clusterName, "ApMon_JobMon");
  else
    strcpy(job.clusterName, clusterName);
 if (nodeName == NULL || strlen(nodeName) == 0)
    strcpy(job.nodeName, this -> myIP);
  else
    strcpy(job.nodeName, nodeName);

  monJobs[nMonJobs++] = job;
}

void ApMon::addToDestinations	(	char *	line,
		int *	nDestinations,
		char *	destAddresses[],
		int	destPorts[],
		char *	destPasswds[]
	)			[protected]

Parses the string line, which has the form hostname:port, and adds the hostname and the port to the lists given as parameters.

Parameters:

	line	The line to be parsed.
	nDestinations	The number of destination hosts in the lists. Will be modified (incremented) in the function.
	destAddresses	The list with IP addresses or hostnames.
	destPorts	The list of corresponding ports.
	destPasswds	Passwords for the destination hosts.

Definition at line 235 of file ApMon.cpp.

                                                                            {
  char *addr, *port, *passwd;
  const char *sep1 = " \t";
  const char *sep2 = ":";

  char *tmp = strdup(line);
  char *firstToken;
//  char buf[MAX_STRING_LEN];
//  char *pbuf = buf;

  /* the address & port are separated from the password with spaces */
  firstToken = strtok/*_r*/(tmp, sep1);//, &pbuf);
  passwd = strtok/*_r*/(NULL, sep1);//, &pbuf);

  /* the address and the port are separated with ":" */
  addr = strtok/*_r*/(firstToken, sep2);//, &pbuf);
  port = strtok/*_r*/(NULL, sep2);//, &pbuf);
  destAddresses[*nDestinations] = strdup(addr);
  if (port == NULL)
    destPorts[*nDestinations] = DEFAULT_PORT;
  else
    destPorts[*nDestinations] = atoi(port);
  if (passwd == NULL)
    destPasswds[*nDestinations] = strdup("");
  else
    destPasswds[*nDestinations] = strdup(passwd);
  (*nDestinations)++;

  free(tmp);
}

void ApMon::arrayInit	(	int	nDestinations,
		char **	destAddresses,
		int *	destPorts,
		char **	destPasswds,
		bool	firstTime
	)			throw (runtime_error) [protected]

Internal function that initializes an ApMon data structure.

Parameters:

	nDestinations	The number of destination hosts where the results will be sent.
	destAddresses	Array that contains the hostnames or IP addresses of the destination hosts.
	destPorts	The ports where the MonaLisa modules listen on the destination hosts.
	destPasswds	Passwords for the destination hosts.
	firstTime	If it is true, all the initializations will be done (the object is being constructed now). Else, only some structures will be reinitialized.

Definition at line 372 of file ApMon.cpp.

                     {
  int i, j;
  int ret;
  char *ipAddr, logmsg[100];
  bool found, havePublicIP;
  int tmpNDestinations;
  char **tmpAddresses, **tmpPasswds;
  int *tmpPorts;

  if (destAddresses == NULL || destPorts == NULL || nDestinations == 0)
    throw runtime_error("[ arrayInit() ] Destination addresses or ports not provided");

  /* initializations that we have to do only once */
  if (firstTime) {
    //this -> appPID = getpid();

    this -> nMonJobs = 0;
    this -> monJobs = (MonitoredJob *)malloc(MAX_MONITORED_JOBS *
                                            sizeof(MonitoredJob));

    try {
      this -> numCPUs = ProcUtils::getNumCPUs();
    } catch (procutils_error &err) {
      logger(WARNING, err.what());
      this -> numCPUs = 0;
    }

    /* get the names of the network interfaces */
    this -> nInterfaces = 0;
    try {
      ProcUtils::getNetworkInterfaces(this -> nInterfaces,
                                     this -> interfaceNames);
    } catch (procutils_error &err) {
      logger(WARNING, err.what());
      this -> nInterfaces = 0;
    }

    /* get the hostname of the machine */
    ret = gethostname(this -> myHostname, MAX_STRING_LEN -1);
    if (ret < 0) {
      logger(WARNING, "Could not obtain the local hostname");
      strcpy(myHostname, "unknown");
    } else
      myHostname[MAX_STRING_LEN - 1] = 0;

    /* get the IPs of the machine */
    this -> numIPs = 0; havePublicIP = false;
    strcpy(this -> myIP, "unknown");

    /* default values for cluster name and node name */
    this -> clusterName = strdup("ApMon_UserSend");
    this -> nodeName = strdup(myHostname);

#ifndef WIN32
    int sockd = socket(PF_INET, SOCK_STREAM, 0);
    if(sockd < 0){
      logger(WARNING, "Could not obtain local IP addresses");
    } else {
      for (i = 0; i < this -> nInterfaces; i++) {
    struct ifreq ifr;
        memset(&ifr, 0, sizeof(ifr));
        strncpy(ifr.ifr_name, this -> interfaceNames[i], sizeof(ifr.ifr_name) - 1);
        if(ioctl(sockd, SIOCGIFADDR, &ifr)<0)
          continue;     //????????
        char ip[4], tmp_s[20];
#ifdef __APPLE__
        memcpy(ip, ifr.ifr_addr.sa_data+2, 4);
#else
        memcpy(ip, ifr.ifr_hwaddr.sa_data+2, 4);
#endif
        strcpy(tmp_s, inet_ntoa(*(struct in_addr *)ip));
        sprintf(logmsg, "Found local IP address: %s", tmp_s);
        logger(FINE, logmsg);
        if (strcmp(tmp_s, "127.0.0.1") != 0 && !havePublicIP) {
          strcpy(this -> myIP, tmp_s);
          if (!isPrivateAddress(tmp_s))
            havePublicIP = true;
        }
        strcpy(this -> allMyIPs[this -> numIPs], tmp_s);
        this -> numIPs++;
      }
    }
#else
        struct hostent *hptr;
    if ((hptr = gethostbyname(myHostname))!= NULL) {
      i = 0;
          struct in_addr addr;
          while ((hptr -> h_addr_list)[i] != NULL) {
            memcpy(&(addr.s_addr), (hptr -> h_addr_list)[i], 4);
        ipAddr = inet_ntoa(addr);
            if (strcmp(ipAddr, "127.0.0.1") != 0) {
              strcpy(this -> myIP, ipAddr);
              if (!isPrivateAddress(ipAddr))
                    break;
                }
            i++;
          }
        }
#endif

    this -> sysMonCluster = strdup("ApMon_SysMon");
    this -> sysMonNode = strdup(this -> myIP);

    this -> prvTime = 0;
    this -> prvSent = 0;
    this -> prvDrop = 0;
    this -> crtTime = 0;
    this -> crtSent = 0;
    this -> crtDrop = 0;
    this -> hWeight = exp(-5.0/60.0);

    srand(time(NULL));

    /* initialize buffer for XDR encoding */
    this -> buf = (char *)malloc(MAX_DGRAM_SIZE);
    if (this -> buf == NULL)
      throw runtime_error("[ arrayInit() ] Error allocating memory");
    this -> dgramSize = 0;

    /*create the socket & set options*/
    initSocket();

    /* initialize the sender ID and the sequence number */
    instance_id = rand();
    seq_nr = 0;
  }

  /* put the destination addresses, ports & passwords in some temporary
     buffers (because we don't want to lock mutex while making DNS
     requests)
  */
  tmpNDestinations = 0;
  tmpPorts = (int *)malloc(nDestinations * sizeof(int));
  tmpAddresses = (char **)malloc(nDestinations * sizeof(char *));
  tmpPasswds = (char **)malloc(nDestinations * sizeof(char *));
  if (tmpPorts == NULL || tmpAddresses == NULL ||
      tmpPasswds == NULL)
    throw runtime_error("[ arrayInit() ] Error allocating memory");

  for (i = 0; i < nDestinations; i++) {
    try {
      ipAddr = findIP(destAddresses[i]);
    } catch (runtime_error &err) {
      logger(FATAL, err.what());
      continue;
    }

    /* make sure this address is not already in the list */
    found = false;
    for (j = 0; j < tmpNDestinations; j++) {
      if (!strcmp(ipAddr, tmpAddresses[j])) {
        found = true;
        break;
      }
    }

    /* add the address to the list */
    if (!found) {
      tmpAddresses[tmpNDestinations] = ipAddr;
      tmpPorts[tmpNDestinations] = destPorts[i];
      tmpPasswds[tmpNDestinations] = strdup(destPasswds[i]);

      sprintf(logmsg, "Adding destination host: %s  - port %d",
             tmpAddresses[tmpNDestinations], tmpPorts[tmpNDestinations]);
      logger(INFO, logmsg);

      tmpNDestinations++;
    }
  }

  if (tmpNDestinations == 0) {
    freeMat(tmpAddresses, tmpNDestinations);
    freeMat(tmpPasswds, tmpNDestinations);
    throw runtime_error("[ arrayInit() ] There is no destination host specified correctly!");
  }

  pthread_mutex_lock(&mutex);
  if (!firstTime)
      freeConf();
  this -> nDestinations = tmpNDestinations;
  this -> destAddresses = tmpAddresses;
  this -> destPorts = tmpPorts;
  this -> destPasswds = tmpPasswds;
  pthread_mutex_unlock(&mutex);

  /* start job/system monitoring according to the settings previously read
     from the configuration file */
  setJobMonitoring(jobMonitoring, jobMonitorInterval);
  setSysMonitoring(sysMonitoring, sysMonitorInterval);
  setGenMonitoring(genMonitoring, genMonitorIntervals);
  setConfRecheck(confCheck, recheckInterval);
}

void ApMon::arrayInit	(	int	nDestinations,
		char **	destAddresses,
		int *	destPorts,
		char **	destPasswds
	)			throw (runtime_error) [protected]

Internal function that initializes an ApMon data structure.

Parameters:

	nDestinations	The number of destination hosts where the results will be sent.
	destAddresses	Array that contains the hostnames or IP addresses of the destination hosts.
	destPorts	The ports where the MonaLisa modules listen on the destination hosts.
	destPasswds	Passwords for the destination hosts.

Definition at line 365 of file ApMon.cpp.

                       {
        arrayInit(nDestinations, destAddresses, destPorts, destPasswds, true);
}

void ApMon::constructFromList	(	int	nDestinations,
		char **	destinationsList
	)			throw (runtime_error) [protected]

Initializes an ApMon object from a list with URLs and destination hosts.

Definition at line 146 of file ApMon.cpp.

                       {
  int i;

  if (destinationsList == NULL)
    throw runtime_error("[ constructFromList() ] Null destination list");

#ifdef __APPLE__
  initType = OLIST_INIT;
#else
  initType = LIST_INIT;
#endif

  initMonitoring();

  /* save the initialization list */
  nInitSources = nDestinations;
  initSources = (char **)malloc(nInitSources * sizeof(char*));
  if (initSources == NULL)
    throw runtime_error("[ ApMon() ] Error allocating memory.");

  for (i = 0; i < nInitSources; i++)
    initSources[i] = strdup(destinationsList[i]);

  initialize(nDestinations, destinationsList, true);
}

void ApMon::encodeParams	(	int	nParams,
		char **	paramNames,
		int *	valueTypes,
		char **	paramValues,
		int	timestamp
	)			throw (runtime_error) [protected]

Encodes in the XDR format the data from a ApMon structure.

Must be called before sending the data over the newtork.

Definition at line 808 of file ApMon.cpp.

                      {
  XDR xdrs; /* XDR handle. */
  int i, effectiveNParams;

  /* count the number of parameters actually sent in the datagram
     (the parameters with a NULL name and the string parameters
     with a NULL value are skipped)
  */
  effectiveNParams = nParams;
  for (i = 0; i < nParams; i++) {
      if (paramNames[i] == NULL || (valueTypes[i] == XDR_STRING &&
                                    paramValues[i] == NULL)) {
        effectiveNParams--;
      }
  }
  if (effectiveNParams == 0)
      throw runtime_error("[ encodeParams() ] No valid parameters in datagram, sending aborted");

  /*** estimate the length of the send buffer ***/

  /* add the length of the cluster name & node name */
  dgramSize =  xdrSize(XDR_STRING, clusterName) +
      xdrSize(XDR_STRING, nodeName) + xdrSize(XDR_INT32, NULL);
  /* add the lengths for the parameters (name + size + value) */
  for (i = 0; i < nParams; i++) {
    dgramSize += xdrSize(XDR_STRING, paramNames[i]) +  xdrSize(XDR_INT32, NULL) +
      + xdrSize(valueTypes[i], paramValues[i]);
  }

  /* check that the maximum datagram size is not exceeded */
  if (dgramSize + MAX_HEADER_LENGTH > MAX_DGRAM_SIZE)
    throw runtime_error("[ encodeParams() ] Maximum datagram size exceeded");

  /* initialize the XDR stream */
  xdrmem_create(&xdrs, buf, MAX_DGRAM_SIZE, XDR_ENCODE);

  try {
    /* encode the cluster name, the node name and the number of parameters */
    if (!xdr_string(&xdrs, &(clusterName), strlen(clusterName)
                    + 1))
      throw runtime_error("[ encodeParams() ] XDR encoding error for the cluster name");

    if (!xdr_string(&xdrs, &(nodeName), strlen(nodeName) + 1))
      throw runtime_error("[ encodeParams() ] XDR encoding error for the node name");

    if (!xdr_int(&xdrs, &(effectiveNParams)))
      throw runtime_error("[ encodeParams() ] XDR encoding error for the number of parameters");

    /* encode the parameters */
    for (i = 0; i < nParams; i++) {
      if (paramNames[i] == NULL || (valueTypes[i] == XDR_STRING &&
                                    paramValues[i] == NULL)) {
        logger(WARNING, "NULL parameter name or value - skipping parameter...");
        continue;
      }

      /* parameter name */
      if (!xdr_string(&xdrs, &(paramNames[i]), strlen(paramNames[i]) + 1))
        throw runtime_error("[ encodeParams() ] XDR encoding error for parameter name");

      /* parameter value type */
      if (!xdr_int(&xdrs, &(valueTypes[i])))
        throw runtime_error("[ encodeParams() ] XDR encoding error for parameter value type");

      /* parameter value */
      switch (valueTypes[i]) {
      case XDR_STRING:
        if (!xdr_string(&xdrs, &(paramValues[i]),
                        strlen(paramValues[i]) + 1))
          throw runtime_error("[ encodeParams() ] XDR encoding error for parameter value");
        break;
        //INT16 is not supported
        /*    case XDR_INT16:
              if (!xdr_short(&xdrs, (short *)(paramValues[i])))
              return RET_ERROR;
              break;
        */    case XDR_INT32:
                if (!xdr_int(&xdrs, (int *)(paramValues[i])))
                  throw runtime_error("[ encodeParams() ] XDR encoding error for parameter value");
                break;
      case XDR_REAL32:
        if (!xdr_float(&xdrs, (float *)(paramValues[i])))
          throw runtime_error("[ encodeParams() ] XDR encoding error for parameter value");
        break;
      case XDR_REAL64:
        if (!xdr_double(&xdrs, (double *)(paramValues[i])))
          throw runtime_error("[ encodeParams() ] XDR encoding error for parameter value");
        break;
      default:
        throw runtime_error("[ encodeParams() ] Unknown type for XDR encoding");
      }
    }

    /* encode the timestamp if necessary */
    if (timestamp > 0) {
      if (!xdr_int(&xdrs, &timestamp))
        throw runtime_error("[ encodeParams() ] XDR encoding error for the timestamp");
      dgramSize += xdrSize(XDR_INT32, NULL);
    }
  } catch (runtime_error& err) {
    xdr_destroy(&xdrs);
    throw err;
  }

  xdr_destroy(&xdrs);
}

static void ApMon::errExit

(

char *

msg

)

[static]

Displays an error message and exits with -1 as return value.

Parameters:

msg

The message to be displayed.

void ApMon::freeConf

(

)

[protected]

Frees the data structures needed to hold the configuratin settings.

Definition at line 609 of file ApMon.cpp.

                     {
  int i;
  freeMat(destAddresses, nDestinations);
  freeMat(destPasswds, nDestinations);
  free(destPorts);

  for (i = 0; i < confURLs.nConfURLs; i++) {
      free(confURLs.vURLs[i]);
      free(confURLs.lastModifURLs[i]);
  }
}

bool ApMon::getConfCheck

(

)

[inline]

Returns the value of the confCheck flag.

If it is true, the configuration file and/or the URLs are periodically checked for modifications.

Definition at line 631 of file ApMon.h.

{ return confCheck; }

long ApMon::getCrtRecheckInterval

(

)

[inline, protected]

Returns the actual value of the time interval (in seconds) between two recheck operations for the configuration files.

Definition at line 956 of file ApMon.h.

                               {
    return crtRecheckInterval;
  }

void ApMon::getDestFromWeb	(	char *	url,
		int *	nDestinations,
		char *	destAddresses[],
		int	destPorts[],
		char *	destPasswds[],
		ConfURLs &	confURLs
	)			throw (runtime_error) [protected]

Gets a configuration file from a web location and adds the destination addresses and ports to the lists given as parameters.

Definition at line 267 of file ApMon.cpp.

                                                                    {
  char temp_filename[300];
  FILE *tmp_file;
  char *line, *ret, *tmp = NULL;
  bool modifLineFound;
  long mypid = getpid();
  char str1[20], str2[20];
  int totalSize, headerSize, contentSize;

#ifndef WIN32
  sprintf(temp_filename, "/tmp/apmon_webconf%ld", mypid);
#else
  char *tmpp = getenv("TEMP");
  if(tmpp == NULL)
          tmpp = getenv("TMP");
  if(tmpp == NULL)
          tmpp = "c:";
  sprintf(temp_filename, "%s\\apmon_webconf%ld", tmpp, mypid);
#endif
  /* get the configuration file from web and put it in a temporary file */
  totalSize = httpRequest(url, (char*)"GET", temp_filename);

  /* read the configuration from the temporary file */
  tmp_file = fopen(temp_filename, "rt");
  if (tmp_file == NULL)
    throw runtime_error("[ getDestFromWeb() ] Error getting the configuration web page");

  line = (char*)malloc((MAX_STRING_LEN + 1) * sizeof(char));

  //check the HTTP header to see if we got the page correctly
  fgets(line, MAX_STRING_LEN, tmp_file);
  sscanf(line, "%s %s", str1, str2);
  if (atoi(str2) != 200) {
    free(line);
    fclose(tmp_file);
    throw runtime_error("[ getDestFromWeb() ] The web page does not exist on the server");
  }

  confURLs.vURLs[confURLs.nConfURLs] = strdup(url);

  // check the  header for the "Last-Modified" and "Content-Length" lines
  modifLineFound = false;
  contentSize = 0;
  do {
    if (tmp != NULL)
      free(tmp);
    ret = fgets(line, MAX_STRING_LEN, tmp_file);
    if (ret == NULL) {
      free(line); fclose(tmp_file);
      throw runtime_error("[ getDestFromWeb() ] Error getting the configuration web page");
    }
    if (strstr(line, "Last-Modified") == line) {
      modifLineFound = true;
      confURLs.lastModifURLs[confURLs.nConfURLs] = strdup(line);
    }

    if (strstr(line, "Content-Length") == line) {
      sscanf(line, "%s %d", str1, &contentSize);
    }

    tmp = trimString(line);
  } while (strlen(tmp) != 0);
  free(tmp); free(line);

  if (!modifLineFound)
    confURLs.lastModifURLs[confURLs.nConfURLs] = strdup("");
  confURLs.nConfURLs++;

  headerSize = ftell(tmp_file);
  if (totalSize - headerSize < contentSize) {
    fclose(tmp_file);
    throw runtime_error("[ getDestFromWeb() ] Web page received incompletely");
  }

  try {
    parseConf(tmp_file, nDestinations, destAddresses, destPorts,
              destPasswds);
  } catch (...) {
    fclose(tmp_file);
    unlink(temp_filename);
    throw;
  }

  fclose(tmp_file);
  unlink(temp_filename);
}

bool ApMon::getGenMonitoring

(

)

[inline]

Returns true if the sending of general system information is enabled and false otherwise.

Definition at line 759 of file ApMon.h.

                          {
    bool b;
    pthread_mutex_lock(&mutexBack);
    b = genMonitoring;
    pthread_mutex_unlock(&mutexBack);
    return b;
  }

bool ApMon::getJobMonitoring

(

)

[inline]

Returns true if the job monitoring is enabled, and false otherwise.

Definition at line 695 of file ApMon.h.

                          {
    bool b;
    pthread_mutex_lock(&mutexBack);
    b = jobMonitoring;
    pthread_mutex_unlock(&mutexBack);
    return b;
  }

long ApMon::getJobMonitorInterval

(

)

[inline]

Returns the interval at which job monitoring datagrams are sent.

If the job monitoring is disabled, returns -1.

Definition at line 685 of file ApMon.h.

                               {
    long i = -1;
    pthread_mutex_lock(&mutexBack);
    if (jobMonitoring)
      i = jobMonitorInterval;
    pthread_mutex_unlock(&mutexBack);
    return i;
  }

long ApMon::getRecheckInterval

(

)

[inline]

Returns the value of the time interval (in seconds) between two recheck operations for the configuration files.

If error(s) appear when reloading the configuration, the actual interval will be increased (transparently for the user).

Definition at line 639 of file ApMon.h.

{ return recheckInterval; }

bool ApMon::getSysMonitoring

(

)

[inline]

Returns true if the system monitoring is enabled, and false otherwise.

Definition at line 731 of file ApMon.h.

                          {
    bool b;
    pthread_mutex_lock(&mutexBack);
    b = sysMonitoring;
    pthread_mutex_unlock(&mutexBack);
    return b;
  }

long ApMon::getSysMonitorInterval

(

)

[inline]

Returns the interval at which system monitoring datagrams are sent.

If the job monitoring is disabled, returns -1.

Definition at line 721 of file ApMon.h.

                               {
    long i = -1;
    pthread_mutex_lock(&mutexBack);
    if (sysMonitoring)
      i = sysMonitorInterval;
    pthread_mutex_unlock(&mutexBack);
    return i;
  }

void ApMon::initialize	(	int	nDestinations,
		char **	destList,
		bool	firstTime
	)			throw (runtime_error) [protected]

Initializes an ApMon object from a list with URLs and destination hosts.

Parameters:

	nDestinations	The number of elements in destList.
	destList	The list with URLs.
	firstTime	If it is true, all the initializations will be done (the object is being constructed now). Else, only some structures will be reinitialized.

Definition at line 173 of file ApMon.cpp.

                                                            {
  char *destAddresses[MAX_N_DESTINATIONS];
  int destPorts[MAX_N_DESTINATIONS];
  char *destPasswds[MAX_N_DESTINATIONS];
  char errmsg[200];
  int i;
  int cnt = 0;
  ConfURLs confURLs;

  logger(INFO, "Initializing destination addresses & ports:");

  if (nDestinations > MAX_N_DESTINATIONS)
    throw runtime_error("[ initialize() ] Maximum number of destinations exceeded");


  confURLs.nConfURLs = 0;

  for (i = 0; i < nDestinations; i++) {
    try {
      if (strstr(destinationsList[i], "http") == destinationsList[i])
        getDestFromWeb(destinationsList[i], &cnt,
                       destAddresses, destPorts, destPasswds, confURLs);
      else
        addToDestinations(destinationsList[i], &cnt,
                        destAddresses, destPorts, destPasswds);

    } catch (runtime_error &e) {
      sprintf(errmsg, "[ initialize() ] Error while loading the configuration: %s", e.what());
      logger(WARNING, errmsg);
      if (!firstTime) {
        for (i = 0; i < cnt; i++) {
          free(destAddresses[i]);
          free(destPasswds[i]);
        }
        logger(WARNING, "Configuration not reloaded successfully. Keeping the previous one.");
        return;
      }
    }  // catch
  }  // for

  try {
    arrayInit(cnt, destAddresses, destPorts, destPasswds, firstTime);
  } catch (runtime_error& err) {
    if (firstTime)
      throw err;
    else {
      logger(WARNING, "Error reloading the configuration. Keeping the previous one.");
      return;
    }
  }

  for (i = 0; i < cnt; i++) {
    free(destAddresses[i]);
    free(destPasswds[i]);
  }

  pthread_mutex_lock(&mutex);
  this -> confURLs = confURLs;
  pthread_mutex_unlock(&mutex);
}

void ApMon::initialize	(	char *	filename,
		bool	firstTime
	)			throw (runtime_error) [protected]

Initializes an ApMon object from a configuration file.

Parameters:

	filename	The name of the file which contains the addresses and the ports of the destination hosts (see README for details about the structure of this file).
	firstTime	If it is true, all the initializations will be done (the object is being constructed now). Else, only some structures will be reinitialized.

Definition at line 85 of file ApMon.cpp.

                       {

  char *destAddresses[MAX_N_DESTINATIONS];
  int destPorts[MAX_N_DESTINATIONS];
  char *destPasswds[MAX_N_DESTINATIONS];
  int nDest = 0, i;
  ConfURLs confURLs;

  confURLs.nConfURLs = 0;

  try {
    loadFile(filename, &nDest, destAddresses, destPorts, destPasswds);

    arrayInit(nDest, destAddresses, destPorts, destPasswds, firstTime);
  } catch (runtime_error& err) {
    if (firstTime)
      throw err;
    else {
      logger(WARNING, err.what());
      logger(WARNING, "Error reloading the configuration. Keeping the previous one.");
      return;
    }
  }

  for (i = 0; i < nDest; i++) {
    free(destAddresses[i]);
    free(destPasswds[i]);
  }

  pthread_mutex_lock(&mutex);
  this -> confURLs = confURLs;
  pthread_mutex_unlock(&mutex);
}

void ApMon::initMonitoring

(

)

[protected]

Initializes the monitoring configurations and the names of the parameters included in the monitoring datagrams.

Definition at line 682 of file monitor_utils.cpp.

                           {
  int i;

  this -> autoDisableMonitoring = true;
  this -> sysMonitoring = false;
  this -> jobMonitoring = false;
  this -> genMonitoring = false;
  this -> confCheck = false;

#ifndef WIN32
  pthread_mutex_init(&this -> mutex, NULL);
  pthread_mutex_init(&this -> mutexBack, NULL);
  pthread_mutex_init(&this -> mutexCond, NULL);
  pthread_cond_init(&this -> confChangedCond, NULL);
#else
  logger(INFO, "init mutexes...");
  this -> mutex     = CreateMutex(NULL, FALSE, NULL);
  this -> mutexBack = CreateMutex(NULL, FALSE, NULL);
  this -> mutexCond = CreateMutex(NULL, FALSE, NULL);
  this -> confChangedCond = CreateEvent(NULL, FALSE, FALSE, NULL);

  // Initialize the Windows Sockets library

  WORD wVersionRequested;
  WSADATA wsaData;
  int err;
  wVersionRequested = MAKEWORD( 2, 0 );
  err = WSAStartup( wVersionRequested, &wsaData );
  if ( err != 0 ) {
    logger(FATAL, "Could not initialize the Windows Sockets library (WS2_32.dll)");
  }

#endif

  this -> haveBkThread = false;
  this -> bkThreadStarted = false;
  this -> stopBkThread = false;

  this -> recheckChanged = false;
  this -> jobMonChanged = false;
  this -> sysMonChanged = false;

  this -> recheckInterval = RECHECK_INTERVAL;
  this -> crtRecheckInterval = RECHECK_INTERVAL;
  this -> jobMonitorInterval = JOB_MONITOR_INTERVAL;
  this -> sysMonitorInterval = SYS_MONITOR_INTERVAL;

  this -> nSysMonitorParams = initSysParams(this -> sysMonitorParams);

  this -> nGenMonitorParams = initGenParams(this -> genMonitorParams);

  this -> nJobMonitorParams = initJobParams(this -> jobMonitorParams);

  initSocketStatesMapTCP(this -> socketStatesMapTCP);

  this -> sysInfo_first = true;

  try {
    this -> lastSysInfoSend = ProcUtils::getBootTime();
  } catch (procutils_error& perr) {
    logger(WARNING, perr.what());
    logger(WARNING, "The first system monitoring values may be inaccurate");
    this -> lastSysInfoSend = 0;
  }

  for (i = 0; i < nSysMonitorParams; i++)
    this -> lastSysVals[i] = 0;

  //this -> lastUsrTime = this -> lastSysTime = 0;
  //this -> lastNiceTime = this -> lastIdleTime = 0;

  for (i = 0; i < nSysMonitorParams; i++) {
    actSysMonitorParams[i] = 1;
    sysRetResults[i] = RET_SUCCESS;
  }

  for (i = 0; i < nGenMonitorParams; i++) {
    actGenMonitorParams[i] = 1;
    genRetResults[i] = RET_SUCCESS;
  }

  for (i = 0; i < nJobMonitorParams; i++) {
    actJobMonitorParams[i] = 1;
    jobRetResults[i] = RET_SUCCESS;
  }

  this -> maxMsgRate = MAX_MSG_RATE;
}

void ApMon::initSocket

(

)

throw (runtime_error) [protected]

Initializes the UDP socket used to send the datagrams.

Definition at line 1366 of file ApMon.cpp.

                                            {
  int optval1 = 1;
  struct timeval optval2;
  int ret1, ret2, ret3;

  sockfd = socket(AF_INET, SOCK_DGRAM, 0);
  if (sockfd < 0)
    throw runtime_error("[ initSocket() ] Error creating socket");
  ret1 = setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char *) &optval1,
                    sizeof(optval1));

  /* set connection timeout */
  optval2.tv_sec = 20;
  optval2.tv_usec = 0;
  ret2 = setsockopt(sockfd, SOL_SOCKET, SO_SNDTIMEO, (char *) &optval2,
                    sizeof(optval2));
  ret3 = setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (char *) &optval2,
                    sizeof(optval2));
  if (ret1 != 0 || ret2 != 0 || ret3 != 0)
    throw runtime_error("[ initSocket() ] Error initializing socket.");
}

void ApMon::loadFile	(	char *	filename,
		int *	nDestinations,
		char **	destAddresses,
		int *	destPorts,
		char **	destPasswds
	)			throw (runtime_error) [protected]

Parses a configuration file which contains addresses, ports and passwords for the destination hosts and puts the results in the vectors given as parameters.

Parameters:

	filename	The name of the configuration file.
	nDestinations	Output parameter, will contain the number of destination hosts.
	destAddresses	Will contain the destination addresses.
	destPorts	Will contain the ports from the destination hosts.
	destPasswds	Will contain the passwords for the destination hosts.

Definition at line 120 of file ApMon.cpp.

                       {
  FILE *f;
  char msg[100];

  /* initializations for the destination addresses */
  f = fopen(filename, "rt");
  if (f == NULL) {
    throw runtime_error("[ loadFile() ] Error opening configuration file");
  }

  sprintf(msg, "Loading file %s ...", filename);
  logger(INFO, msg);

  lastModifFile = time(NULL);

  parseConf(f, nDestinations, destAddresses, destPorts,
            destPasswds);
  fclose(f);
}

void ApMon::parseConf	(	FILE *	fp,
		int *	nDestinations,
		char **	destAddresses,
		int *	destPorts,
		char **	destPasswds
	)			throw (runtime_error) [protected]

Parses the contents of a configuration file.

The destination addresses and ports are stored in the arrays given as parameters.

Definition at line 1389 of file ApMon.cpp.

                       {
  int i, ch;
  char *line = (char *)malloc ((MAX_STRING_LEN1) * sizeof(char));
  char *tmp = NULL;
  char *loglevel_s;
//  char sbuf[30];
//  char *pbuf = sbuf;

  /* parse the input file */
  while(fgets(line, MAX_STRING_LEN, fp) != NULL) {

    if (tmp != NULL) {
      free(tmp);
      tmp = NULL;
    }

    line[MAX_STRING_LEN - 1] = 0;
    /* check if the line was too long */
    ch = fgetc(fp); // see if we are at the end of the file
    ungetc(ch, fp);
    if (line[strlen(line) - 1] != 10 && ch != EOF) {
      /* if the line doesn't end with a \n and we are not at the end
         of file, the line from the file was longer than MAX_STRING_LEN */
      fclose(fp);
      throw runtime_error ("[ parseConf() ] Maximum line length exceeded in the conf file");
    }

    tmp = trimString(line);

    /* skip the blank lines and the comment lines */
    if (strlen(tmp) == 0 || strchr(tmp, '#') == tmp)
      continue;

    if (strstr(tmp, "xApMon_loglevel") == tmp) {
      char *tmp2 = tmp;
      strtok/*_r*/(tmp2, "= ");//, &pbuf);
      loglevel_s = strtok/*_r*/(NULL, "= ");//, &pbuf);
      setLogLevel(loglevel_s);
      continue;
    }

    if (strstr(tmp, "xApMon_") == tmp) {
      parseXApMonLine(tmp);
      continue;
    }

    if (*nDestinations >= MAX_N_DESTINATIONS) {
      free(line); free(tmp);
      for (i = 0; i < *nDestinations; i++) {
        free(destAddresses[i]);
        free(destPasswds[i]);
      }
      fclose(fp);
      throw runtime_error("[ parseConf() ] Maximum number of destinations exceeded.");
    }

    addToDestinations(tmp, nDestinations, destAddresses, destPorts,
                      destPasswds);
  }

  if (tmp != NULL)
    free(tmp);
  free(line);
}

void ApMon::parseXApMonLine

(

char *

line

)

[protected]

Parses an xApMon line from the configuration file and sets the corresponding parameters in the ApMon object.

Definition at line 771 of file monitor_utils.cpp.

                                      {
  bool flag, found;
  int ind;
  char tmp[MAX_STRING_LEN], logmsg[200];
  char *param, *value;
//  char sbuf[MAX_STRING_LEN];
//  char *pbuf = sbuf;
  const char *sep = " =";

  strcpy(tmp, line);
  char *tmp2 = tmp + strlen("xApMon_");

  param = strtok/*_r*/(tmp2, sep);//, &pbuf);
  value = strtok/*_r*/(NULL, sep);//, &pbuf);

  /* if it is an on/off parameter, assign its value to flag */
  if (strcmp(value, "on") == 0)
    flag = true;
  else /* if it is not an on/off paramenter the value of flag doesn't matter */
    flag = false;

  pthread_mutex_lock(&mutexBack);

  found = false;
  if (strcmp(param, "job_monitoring") == 0) {
    this -> jobMonitoring = flag; found = true;
  }
  if (strcmp(param, "sys_monitoring") == 0) {
    this -> sysMonitoring = flag; found = true;
  }
  if (strcmp(param, "job_interval") == 0) {
    this -> jobMonitorInterval = atol(value); found = true;
  }
  if (strcmp(param, "sys_interval") == 0) {
    this -> sysMonitorInterval = atol(value); found = true;
  }
  if (strcmp(param, "general_info") == 0) {
    this -> genMonitoring = flag; found = true;
  }
  if (strcmp(param, "conf_recheck") == 0) {
    this -> confCheck = flag; found = true;
  }
  if (strcmp(param, "recheck_interval") == 0) {
    this -> recheckInterval = this -> crtRecheckInterval = atol(value);
    found = true;
  }
  if (strcmp(param, "auto_disable") == 0) {
    this -> autoDisableMonitoring = flag;
    found = true;
  }
  if (strcmp(param, "maxMsgRate") == 0) {
    this -> maxMsgRate = atoi(value);
    found = true;
  }

  if (found) {
    pthread_mutex_unlock(&mutexBack);
    return;
  }

  if (strstr(param, "sys_") == param) {
    ind = getVectIndex(param + strlen("sys_"), sysMonitorParams,
                       nSysMonitorParams);
    if (ind < 0) {
      pthread_mutex_unlock(&mutexBack);
      sprintf(logmsg, "Invalid parameter name in the configuration file: %s",
            param);
      logger(WARNING, logmsg);
      return;
    }
    found = true;
    this -> actSysMonitorParams[ind] = (int)flag;
  }

  if (strstr(param, "job_") == param) {
    ind = getVectIndex(param + strlen("job_"), jobMonitorParams,
                       nJobMonitorParams);

    if (ind < 0) {
      pthread_mutex_unlock(&mutexBack);
      sprintf(logmsg, "Invalid parameter name in the configuration file: %s",
            param);
      logger(WARNING, logmsg);
      return;
    }
    found = true;
    this -> actJobMonitorParams[ind] = (int)flag;
  }

  if (!found) {
    ind = getVectIndex(param, genMonitorParams,
                       nGenMonitorParams);
    if (ind < 0) {
      pthread_mutex_unlock(&mutexBack);
      sprintf(logmsg, "Invalid parameter name in the configuration file: %s",
              param);
      logger(WARNING, logmsg);
      return;
    } else {
      found = true;
      this -> actGenMonitorParams[ind] = (int)flag;
    }
  }

  if (!found) {
    sprintf(logmsg, "Invalid parameter name in the configuration file: %s",
            param);
    logger(WARNING, logmsg);
  }
  pthread_mutex_unlock(&mutexBack);
}

void ApMon::removeJobToMonitor

(

long

pid

)

throw (runtime_error)

Removes a job from the list of the jobs monitored by ApMon.

Parameters:

pid

The pid of the job to be removed.

Definition at line 1315 of file ApMon.cpp.

                                                            {
  int i, j;
  char msg[100];

  if (nMonJobs <= 0)
    throw runtime_error("[ removeJobToMonitor() ] There are no monitored jobs.");

  for (i = 0; i < nMonJobs; i++) {
    if (monJobs[i].pid == pid) {
      /* found the job, now remove it */
      for (j = i; j < nMonJobs - 1; j++)
        monJobs[j] = monJobs[j + 1];
      nMonJobs--;
      return;
    }
  }

  /* the job was not found */
  sprintf(msg, "removeJobToMonitor(): Job %ld not found.", pid);
  throw runtime_error(msg);
}

void ApMon::sendGeneralInfo

(

)

[protected]

Sends datagrams with general system monitoring information to all the destination hosts.

Definition at line 582 of file monitor_utils.cpp.

                            {
#ifndef WIN32
  int nParams, maxNParams, i;
  char tmp_s[50];

  char **paramNames, **paramValues;
  int *valueTypes;

  logger(INFO, "Sending general monitoring information...");

  maxNParams = nGenMonitorParams + numIPs;
  valueTypes = (int *)malloc(maxNParams * sizeof(int));
  paramNames = (char **)malloc(maxNParams * sizeof(char *));
  paramValues = (char **)malloc(maxNParams * sizeof(char *));

  nParams = 0;

  updateGeneralInfo();

  if (actGenMonitorParams[GEN_HOSTNAME]) {
    paramNames[nParams] = strdup(genMonitorParams[GEN_HOSTNAME]);
    valueTypes[nParams] = XDR_STRING;
    paramValues[nParams] = myHostname;
    nParams++;
  }

  if (actGenMonitorParams[GEN_IP]) {
    for (i = 0; i < this -> numIPs; i++) {
      strcpy(tmp_s, "ip_");
      strcat(tmp_s, interfaceNames[i]);
      paramNames[nParams] = strdup(tmp_s);
      valueTypes[nParams] = XDR_STRING;
      paramValues[nParams] = this -> allMyIPs[i];
      nParams++;
    }
  }

  if (actGenMonitorParams[GEN_CPU_VENDOR_ID] && strlen(cpuVendor) != 0) {
    paramNames[nParams] = strdup(genMonitorParams[GEN_CPU_VENDOR_ID]);
    valueTypes[nParams] = XDR_STRING;
    paramValues[nParams] = cpuVendor;
    nParams++;
  }

  if (actGenMonitorParams[GEN_CPU_FAMILY] && strlen(cpuFamily) != 0) {
    paramNames[nParams] = strdup(genMonitorParams[GEN_CPU_FAMILY]);
    valueTypes[nParams] = XDR_STRING;
    paramValues[nParams] = cpuFamily;
    nParams++;
  }

  if (actGenMonitorParams[GEN_CPU_MODEL] && strlen(cpuModel) != 0) {
    paramNames[nParams] = strdup(genMonitorParams[GEN_CPU_MODEL]);
    valueTypes[nParams] = XDR_STRING;
    paramValues[nParams] = cpuModel;
    nParams++;
  }

  if (actGenMonitorParams[GEN_CPU_MODEL_NAME] && strlen(cpuModelName) != 0) {
    paramNames[nParams] = strdup(genMonitorParams[GEN_CPU_MODEL_NAME]);
    valueTypes[nParams] = XDR_STRING;
    paramValues[nParams] = cpuModelName;
    nParams++;
  }

  for (i = 0; i < nGenMonitorParams; i++) {
    if (actGenMonitorParams[i] != 1 || i == GEN_IP || i == GEN_HOSTNAME ||
        i == GEN_CPU_VENDOR_ID || i == GEN_CPU_FAMILY || i == GEN_CPU_MODEL
        || i == GEN_CPU_MODEL_NAME)
      continue;

    if (genRetResults[i] == PROCUTILS_ERROR) {
      /* could not read the requested information from /proc, disable this
         parameter */
      if (autoDisableMonitoring)
        actGenMonitorParams[i] = 0;
    } else if (genRetResults[i] != RET_ERROR) {
      paramNames[nParams] = strdup(genMonitorParams[i]);
      paramValues[nParams] = (char *)&currentGenVals[i];
      valueTypes[nParams] = XDR_REAL64;
      nParams++;
    }
  }

  try {
    if (nParams > 0)
      sendParameters(sysMonCluster, sysMonNode, nParams,
                     paramNames, valueTypes, paramValues);
  } catch (runtime_error& err) {
    logger(WARNING, err.what());
  }

  for (i = 0; i < nParams; i++)
    free(paramNames[i]);
  free(paramNames);
  free(valueTypes);
  free(paramValues);
#endif
}

void ApMon::sendJobInfo

(

)

[protected]

Sends datagrams containing information about the jobs that are currently being monitored.

Definition at line 48 of file monitor_utils.cpp.

                        {
#ifndef WIN32
  int i;
  long crtTime;

 /* the apMon_free() function calls sendJobInfo() from another thread and
     we need mutual exclusion */
  pthread_mutex_lock(&mutexBack);

  if (nMonJobs == 0) {
    logger(WARNING, "There are no jobs to be monitored, not sending job monitoring information.");
    pthread_mutex_unlock(&mutexBack);
    return;
  }

  crtTime = time(NULL);
  logger(INFO, "Sending job monitoring information...");
  lastJobInfoSend = (time_t)crtTime;

  /* send monitoring information for all the jobs specified by the user */
  for (i = 0; i < nMonJobs; i++)
    sendOneJobInfo(monJobs[i]);

  pthread_mutex_unlock(&mutexBack);
#endif
}

void ApMon::sendOneJobInfo

(

MonitoredJob

job

)

[protected]

Sends datagrams with monitoring information about the specified job to all the destination hosts.

Definition at line 152 of file monitor_utils.cpp.

                                           {
  int i;
  int nParams = 0;

  char **paramNames, **paramValues;
  int *valueTypes;

  valueTypes = (int *)malloc(nJobMonitorParams * sizeof(int));
  paramNames = (char **)malloc(nJobMonitorParams * sizeof(char *));
  paramValues = (char **)malloc(nJobMonitorParams * sizeof(char *));

  for (i = 0; i < nJobMonitorParams; i++) {
    jobRetResults[i] = RET_SUCCESS;
    currentJobVals[i] = 0;
  }

  updateJobInfo(job);

  for (i = 0; i < nJobMonitorParams; i++) {
    if (actJobMonitorParams[i] && jobRetResults[i] != RET_ERROR) {

      paramNames[nParams] = jobMonitorParams[i];
      paramValues[nParams] = (char *)&currentJobVals[i];
      valueTypes[nParams] = XDR_REAL64;
      nParams++;
    }
    /* don't disable the parameter (maybe for another job it can be
         obtained) */
      /*
        else
        if (autoDisableMonitoring)
        actJobMonitorParams[ind] = 0;
      */
  }

  if (nParams == 0) {
    free(paramNames); free(valueTypes);
    free(paramValues);
    return;
  }

  try {
    if (nParams > 0)
      sendParameters(job.clusterName, job.nodeName, nParams,
                     paramNames, valueTypes, paramValues);
  } catch (runtime_error& err) {
    logger(WARNING, err.what());
  }

  free(paramNames);
  free(valueTypes);
  free(paramValues);
}

int ApMon::sendParameter	(	char *	clusterName,
		char *	nodeName,
		char *	paramName,
		char *	paramValue
	)			throw (runtime_error)

Sends a parameter of type string and its value to the MonALISA module.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	paramValue	The value of the parameter.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 801 of file ApMon.cpp.

                                                                        {

  return sendParameter(clusterName, nodeName, paramName, XDR_STRING,
                    paramValue);
}

int ApMon::sendParameter	(	char *	clusterName,
		char *	nodeName,
		char *	paramName,
		double	paramValue
	)			throw (runtime_error)

Sends a parameter of type double and its value to the MonALISA module.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL,we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	paramValue	The value of the parameter.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 794 of file ApMon.cpp.

                                                                         {

  return sendParameter(clusterName, nodeName, paramName, XDR_REAL64,
                    (char *)&paramValue);
}

int ApMon::sendParameter	(	char *	clusterName,
		char *	nodeName,
		char *	paramName,
		float	paramValue
	)			throw (runtime_error)

Sends a parameter of type float and its value to the MonALISA module.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	paramValue	The value of the parameter.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 787 of file ApMon.cpp.

                                                                        {

  return sendParameter(clusterName, nodeName, paramName, XDR_REAL32,
                    (char *)&paramValue);
}

int ApMon::sendParameter	(	char *	clusterName,
		char *	nodeName,
		char *	paramName,
		int	paramValue
	)			throw (runtime_error)

Sends an integer parameter and its value to the MonALISA module.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	paramValue	The value of the parameter.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 780 of file ApMon.cpp.

                                                                      {

  return sendParameter(clusterName, nodeName, paramName, XDR_INT32,
                    (char *)&paramValue);
}

int ApMon::sendParameter	(	char *	clusterName,
		char *	nodeName,
		char *	paramName,
		int	valueType,
		char *	paramValue
	)			throw (runtime_error)

Sends a parameter and its value to the MonALISA module.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	valueType	The value type of the parameter. Can be one of the constants XDR_INT32 (integer), XDR_REAL32 (float), XDR_REAL64 (double), XDR_STRING (null-terminated string).
	paramValue	Pointer to the value of the parameter.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 764 of file ApMon.cpp.

                     {

  return sendParameters(clusterName, nodeName, 1, &paramName,
                              &valueType, &paramValue);
}

int ApMon::sendParameters	(	char *	clusterName,
		char *	nodeName,
		int	nParams,
		char **	paramNames,
		int *	valueTypes,
		char **	paramValues
	)			throw (runtime_error)

Sends a parameter of type string and its value to the MonALISA module.

Parameters:

	clusterName	The name of the cluster that is monitored.If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	paramValue	The value of the parameter.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 621 of file ApMon.cpp.

                                                                 {
 return sendTimedParameters(clusterName, nodeName, nParams,
                            paramNames, valueTypes, paramValues, -1);
}

void ApMon::sendSysInfo

(

)

[protected]

Sends datagrams with system monitoring information to all the destination hosts.

Definition at line 371 of file monitor_utils.cpp.

                        {
#ifndef WIN32
  int nParams = 0, maxNParams;
  int i;
  long crtTime;

  int *valueTypes;
  char **paramNames, **paramValues;

  crtTime = time(NULL);
  logger(INFO, "Sending system monitoring information...");

  /* make some initializations only the first time this
     function is called */
  if (this -> sysInfo_first) {
    for (i = 0; i < this -> nInterfaces; i++) {
     this -> lastBytesSent[i] = this -> lastBytesReceived[i] = 0.0;
     this -> lastNetErrs[i] = 0;

    }
    this -> sysInfo_first = FALSE;
  }

  /* the maximum number of parameters that can be included in a datagram */
  /* (the last three terms are for: parameters corresponding to each possible
     state of the processes, parameters corresponding to the types of open
     sockets, parameters corresponding to each possible state of the TCP
     sockets.) */
  maxNParams = nSysMonitorParams + (2 * nInterfaces - 1) + 15 + 4 +
    N_TCP_STATES;

  valueTypes = (int *)malloc(maxNParams * sizeof(int));
  paramNames = (char **)malloc(maxNParams * sizeof(char *));
  paramValues = (char **)malloc(maxNParams * sizeof(char *));

  for (i = 0; i < nSysMonitorParams; i++) {
    if (actSysMonitorParams[i] > 0) /* if the parameter is enabled */
      sysRetResults[i] = RET_SUCCESS;
    else /* mark it with RET_ERROR so that it will be not included in the
            datagram */
      sysRetResults[i] = RET_ERROR;
  }

  updateSysInfo();

  for (i = 0; i < nSysMonitorParams; i++) {
    if (i == SYS_NET_IN || i == SYS_NET_OUT || i == SYS_NET_ERRS ||
        i == SYS_NET_SOCKETS || i == SYS_NET_TCP_DETAILS || i == SYS_PROCESSES)
      continue;

    if (sysRetResults[i] == PROCUTILS_ERROR) {
      /* could not read the requested information from /proc, disable this
         parameter */
      if (autoDisableMonitoring)
        actSysMonitorParams[i] = 0;
    } else if (sysRetResults[i] != RET_ERROR) {
      /* the parameter is enabled and there were no errors obtaining it */
      paramNames[nParams] = strdup(sysMonitorParams[i]);
      paramValues[nParams] = (char *)&currentSysVals[i];
      valueTypes[nParams] = XDR_REAL64;
      nParams++;
    }
  }

  if (actSysMonitorParams[SYS_NET_IN] == 1) {
    if (sysRetResults[SYS_NET_IN] == PROCUTILS_ERROR) {
      if (autoDisableMonitoring)
        actSysMonitorParams[SYS_NET_IN] = 0;
    } else  if (sysRetResults[SYS_NET_IN] != RET_ERROR) {
      for (i = 0; i < nInterfaces; i++) {
        paramNames[nParams] =  (char *)malloc(20 * sizeof(char));
        strcpy(paramNames[nParams], interfaceNames[i]);
        strcat(paramNames[nParams], "_in");
        paramValues[nParams] = (char *)&currentNetIn[i];
        valueTypes[nParams] = XDR_REAL64;
        nParams++;
      }
    }
  }

  if (actSysMonitorParams[SYS_NET_OUT] == 1) {
    if (sysRetResults[SYS_NET_IN] == PROCUTILS_ERROR) {
      if (autoDisableMonitoring)
        actSysMonitorParams[SYS_NET_OUT] = 0;
    } else  if (sysRetResults[SYS_NET_OUT] != RET_ERROR) {
      for (i = 0; i < nInterfaces; i++) {
        paramNames[nParams] =  (char *)malloc(20 * sizeof(char));
        strcpy(paramNames[nParams], interfaceNames[i]);
        strcat(paramNames[nParams], "_out");
        paramValues[nParams] = (char *)&currentNetOut[i];
        valueTypes[nParams] = XDR_REAL64;
        nParams++;
      }
    }
  }

  if (actSysMonitorParams[SYS_NET_ERRS] == 1) {
    if (sysRetResults[SYS_NET_ERRS] == PROCUTILS_ERROR) {
      if (autoDisableMonitoring)
        actSysMonitorParams[SYS_NET_ERRS] = 0;
    } else  if (sysRetResults[SYS_NET_ERRS] != RET_ERROR) {
      for (i = 0; i < nInterfaces; i++) {
        paramNames[nParams] =  (char *)malloc(20 * sizeof(char));
        strcpy(paramNames[nParams], interfaceNames[i]);
        strcat(paramNames[nParams], "_errs");
        paramValues[nParams] = (char *)&currentNetErrs[i];
        valueTypes[nParams] = XDR_REAL64;
        nParams++;
      }
    }
  }


  if (actSysMonitorParams[SYS_PROCESSES] == 1) {
    if (sysRetResults[SYS_PROCESSES] != RET_ERROR) {
      char act_states[] = {'D', 'R', 'S', 'T', 'Z'};
      for (i = 0; i < 5; i++) {
        paramNames[nParams] =  (char *)malloc(20 * sizeof(char));
        sprintf(paramNames[nParams], "processes_%c", act_states[i]);
        paramValues[nParams] = (char *)&currentProcessStates[act_states[i] - 65];
        valueTypes[nParams] = XDR_REAL64;
        nParams++;
      }
    }
  }

  if (actSysMonitorParams[SYS_NET_SOCKETS] == 1) {
    if (sysRetResults[SYS_NET_SOCKETS] != RET_ERROR) {
      const char *socket_types[] = {"tcp", "udp", "icm", "unix"};
      for (i = 0; i < 4; i++) {
        paramNames[nParams] =  (char *)malloc(30 * sizeof(char));
        sprintf(paramNames[nParams], "sockets_%s", socket_types[i]);
        paramValues[nParams] = (char *)&currentNSockets[i];
        valueTypes[nParams] = XDR_REAL64;
        nParams++;
      }
    }
  }

  if (actSysMonitorParams[SYS_NET_TCP_DETAILS] == 1) {
    if (sysRetResults[SYS_NET_TCP_DETAILS] != RET_ERROR) {
      for (i = 0; i < N_TCP_STATES; i++) {
        paramNames[nParams] =  (char *)malloc(30 * sizeof(char));
        sprintf(paramNames[nParams], "sockets_tcp_%s", socketStatesMapTCP[i]);
        paramValues[nParams] = (char *)&currentSocketsTCP[i];
        valueTypes[nParams] = XDR_REAL64;
        nParams++;
      }
    }
  }

  try {
    if (nParams > 0)
      sendParameters(sysMonCluster, sysMonNode, nParams,
                     paramNames, valueTypes, paramValues);
  } catch (runtime_error& err) {
    logger(WARNING, err.what());
  }

  this -> lastSysInfoSend = crtTime;

  if (sysRetResults[SYS_NET_IN] == RET_SUCCESS) {
    free(currentNetIn);
    free(currentNetOut);
    free(currentNetErrs);
  }

  for (i = 0; i < nParams; i++)
    free(paramNames[i]);
  free(paramNames);
  free(valueTypes);
  free(paramValues);
#endif
}

int ApMon::sendTimedParameter	(	char *	clusterName,
		char *	nodeName,
		char *	paramName,
		int	valueType,
		char *	paramValue,
		int	timestamp
	)			throw (runtime_error)

Sends a parameter and its value to the MonALISA module, together with a timestamp.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	paramName	The name of the parameter.
	valueType	The value type of the parameter. Can be one of the constants XDR_INT32 (integer), XDR_REAL32 (float), XDR_REAL64 (double), XDR_STRING (null-terminated string).
	paramValue	Pointer to the value of the parameter.
	timestamp	The associated timestamp (in seconds).

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 772 of file ApMon.cpp.

                     {

  return sendTimedParameters(clusterName, nodeName, 1, &paramName,
                              &valueType, &paramValue, timestamp);
}

int ApMon::sendTimedParameters	(	char *	clusterName,
		char *	nodeName,
		int	nParams,
		char **	paramNames,
		int *	valueTypes,
		char **	paramValues,
		int	timestamp
	)			throw (runtime_error)

Sends a set of parameters and their values to the MonALISA module, together with a timestamp.

Parameters:

	clusterName	The name of the cluster that is monitored. If it is NULL, we keep the same cluster and node name as in the previous datagram.
	nodeName	The name of the node from the cluster from which the value was taken.
	nParams	The number of parameters to be sent.
	paramNames	Array with the parameter names.
	valueTypes	Array with the value types represented as integers.
	paramValue	Array with the parameter values.
	timestamp	The timestamp (in seconds) associated with the data.

Returns:

RET_SUCCESS (0) on success, RET_NOT_SENT (-3) if the message was not sent because the maximum number of messages per second was exceeded. On error an exception is thrown.

Definition at line 628 of file ApMon.cpp.

                                                                      {
  int i;
  int ret, ret1, ret2;
  char msg[100], buf2[MAX_HEADER_LENGTH+4], newBuf[MAX_DGRAM_SIZE];
#ifdef WIN32
  char crtAddr[20];
#endif
  char *headerTmp;
  char header[MAX_HEADER_LENGTH] = "v:";
  strcat(header, APMON_VERSION);
  strcat(header, "_cpp"); // to indicate this is the C++ version
  strcat(header, "p:");

  pthread_mutex_lock(&mutex);

  if(!shouldSend()) {
     pthread_mutex_unlock(&mutex);
     return RET_NOT_SENT;
  }

  if (clusterName != NULL) { // don't keep the cached values for cluster name
    // and node name
    free(this -> clusterName);
    this -> clusterName = strdup(clusterName);

    if (nodeName != NULL) {  /* the user provided a name */
      free(this -> nodeName);
      this -> nodeName = strdup(nodeName);
    }
    else { /* set the node name to the node's IP */
      free(this -> nodeName);
      this -> nodeName = strdup(this -> myHostname);
    }  // else
  } // if

  if (this -> clusterName == NULL || this -> nodeName == NULL) {
    pthread_mutex_unlock(&mutex);
    throw runtime_error("[ sendTimedParameters() ] Null cluster name or node name");
  }

  //sortParams(nParams, paramNames, valueTypes, paramValues);

  /* try to encode the parameters */
  try {
    encodeParams(nParams, paramNames, valueTypes, paramValues, timestamp);
  } catch (runtime_error& err) {
    pthread_mutex_unlock(&mutex);
    throw err;
  }

  headerTmp = (char *)malloc(MAX_HEADER_LENGTH * sizeof(char));
  /* for each destination */
  for (i = 0; i < nDestinations; i++) {
    XDR xdrs;
    struct sockaddr_in destAddr;

    /* initialize the destination address */
    memset(&destAddr, 0, sizeof(destAddr));
    destAddr.sin_family = AF_INET;
    destAddr.sin_port = htons(destPorts[i]);
#ifndef WIN32
    inet_pton(AF_INET, destAddresses[i], &destAddr.sin_addr);
#else
    int dummy = sizeof(destAddr);
    sprintf(crtAddr, "%s:%d", destAddresses[i], destPorts[i]);
    ret = WSAStringToAddress(crtAddr, AF_INET, NULL, (struct sockaddr *) &destAddr, &dummy);
    if(ret){
      ret = WSAGetLastError();
      sprintf(msg, "[ sendTimedParameters() ] Error packing address %s, code %d ", crtAddr, ret);
      throw runtime_error(msg);
    }
#endif
    /* add the header (which is different for each destination) */

    strcpy(headerTmp, header);
    strcat(headerTmp, destPasswds[i]);

    /* initialize the XDR stream to encode the header */
    xdrmem_create(&xdrs, buf2, MAX_HEADER_LENGTH, XDR_ENCODE);

    /* encode the header */
    ret = xdr_string(&xdrs, &(headerTmp), strlen(headerTmp) + 1);
    /* add the instance ID and the sequence number */
    ret1 = xdr_int(&xdrs, &(instance_id));
    ret2 = xdr_int(&xdrs, &(seq_nr));

    if (!ret || !ret1 || !ret2) {
      free(headerTmp);
          pthread_mutex_unlock(&mutex);
      throw runtime_error("[ sendTimedParameters() ] XDR encoding error for the header");
    }

    /* concatenate the header and the rest of the datagram */
    int buf2Length = xdrSize(XDR_STRING, headerTmp) + 2 * xdrSize(XDR_INT32, NULL);
    memcpy(newBuf, buf2, buf2Length);
    memcpy(newBuf + buf2Length, buf, dgramSize);

    /* send the buffer */
    ret = sendto(sockfd, newBuf, dgramSize + buf2Length, 0,
                 (struct sockaddr *)&destAddr, sizeof(destAddr));
    if (ret == RET_ERROR) {
      free(headerTmp);
      pthread_mutex_unlock(&mutex);

      /*re-initialize the socket */
#ifndef WIN32
      close(sockfd);
#else
      closesocket(sockfd);
#endif
      initSocket();

      /* throw exception because the datagram was not sent */
      sprintf(msg, "[ sendTimedParameters() ] Error sending data to destination %s ",
              destAddresses[i]);
      throw runtime_error(msg);
    }
    else {
      sprintf(msg, "Datagram with size %d, instance id %d, sequence number %d, sent to %s, containing parameters:",
             ret, instance_id, seq_nr, destAddresses[i]);
      logger(FINE, msg);
      logParameters(FINE, nParams, paramNames, valueTypes, paramValues);
    }
    xdr_destroy(&xdrs);

  }

  seq_nr = (seq_nr + 1) % TWO_BILLION;
  free(headerTmp);
  pthread_mutex_unlock(&mutex);
  return RET_SUCCESS;
}

void ApMon::setBackgroundThread

(

bool

val

)

[protected]

Sets the value of the confCheck flag.

If it is true, the configuration file and/or the URLs will be periodically checked for modifications. By default it is false.

Definition at line 1250 of file ApMon.cpp.

                                        {
  // mutexBack is locked
  if (val == true) {
    if (!haveBkThread) {
#ifndef WIN32
      pthread_create(&bkThread, NULL, &bkTask, this);
#else
      DWORD dummy;
      bkThread = CreateThread(NULL, 65536, &bkTask, this, 0, &dummy);
#endif
      haveBkThread = true;
    } else {
      pthread_mutex_lock(&mutexCond);
      pthread_cond_signal(&confChangedCond);
      pthread_mutex_unlock(&mutexCond);
    }
  }
  if (val == false) {
    //if (bkThreadStarted) {
    if (haveBkThread) {
      stopBkThread = true;
      pthread_mutex_unlock(&mutexBack);
#ifndef WIN32
      pthread_mutex_lock(&mutexCond);
#endif
      pthread_cond_signal(&confChangedCond);
      logger(INFO, "[Stopping the background thread...]");
#ifndef WIN32
      pthread_mutex_unlock(&mutexCond);
      pthread_join(bkThread, NULL);
#else
      WaitForSingleObject(bkThread, INFINITE);
#endif
      pthread_mutex_lock(&mutexBack);
//      logger(INFO, "bk thread stopped!");
      haveBkThread = false;
      bkThreadStarted = false;
      stopBkThread = false;
    }
  }
}

void ApMon::setConfRecheck

(

bool

confRecheck

)

[inline]

Enables/disables the periodical check for changes in the configuration files/URLs.

If enabled, the verifications will be done at the default time interval.

Definition at line 663 of file ApMon.h.

                                        {
    setConfRecheck(confRecheck, RECHECK_INTERVAL);
  }

void ApMon::setConfRecheck	(	bool	confRecheck,
		long	interval
	)

Enables/disables the periodical check for changes in the configuration files/URLs.

Parameters:

	confRecheck	If it is true, the periodical checking is enabled.
	interval	The time interval at which the verifications are done. If it is negative, a default value will be used.

Definition at line 1126 of file ApMon.cpp.

                                                        {
  char logmsg[100];
  if (confCheck) {
    sprintf(logmsg, "Enabling configuration reloading (interval %ld)",
            interval);
    logger(INFO, logmsg);
  }

  pthread_mutex_lock(&mutexBack);
  if (initType == DIRECT_INIT) { // no need to reload the configuration
    logger(WARNING, "[ setConfRecheck() } No configuration file/URL to reload.");
    return;
  }

  this -> confCheck = confCheck;
  this -> recheckChanged = true;
  if (confCheck) {
    if (interval > 0) {
      this -> recheckInterval = interval;
      this -> crtRecheckInterval = interval;
    } else {
      this -> recheckInterval = RECHECK_INTERVAL;
      this -> crtRecheckInterval = RECHECK_INTERVAL;
    }
    setBackgroundThread(true);
  }
  else {
    if (jobMonitoring == false && sysMonitoring == false)
      setBackgroundThread(false);
  }
  pthread_mutex_unlock(&mutexBack);

}

void ApMon::setCrtRecheckInterval

(

long

val

)

[protected]

Definition at line 1169 of file ApMon.cpp.

                                          {
  pthread_mutex_lock(&mutexBack);
  crtRecheckInterval = val;
  pthread_mutex_unlock(&mutexBack);
}

void ApMon::setGenMonitoring

(

bool

genMonitoring

)

[inline]

Enables/disables the sending of datagrams with general system information.

A default value is used for the number of time intervals at which the datagrams are sent.

Definition at line 752 of file ApMon.h.

                                            {
    setGenMonitoring(genMonitoring, GEN_MONITOR_INTERVALS);
  }

void ApMon::setGenMonitoring	(	bool	genMonitoring,
		int	nIntervals
	)

Enables/disables the periodical sending of datagrams with general system information.

Parameters:

	genMonitoring	If it is true, enables the sending of the datagrams.
	interval	The number of time intervals at which the datagrams are sent (considering the interval for sending system monitoring information). If it is negative, a default value will be used.

Definition at line 1225 of file ApMon.cpp.

                                                               {
  char logmsg[100];
  sprintf(logmsg, "Setting general information monitoring to %s ",
         boolStrings[(int)genMonitoring]);
  logger(INFO, logmsg);

  pthread_mutex_lock(&mutexBack);
  this -> genMonitoring = genMonitoring;
  this -> sysMonChanged = true;
  if (genMonitoring == true) {
    if (nIntervals > 0)
      this -> genMonitorIntervals = nIntervals;
    else
      this -> genMonitorIntervals = GEN_MONITOR_INTERVALS;

    if (this -> sysMonitoring == false) {
      pthread_mutex_unlock(&mutexBack);
      setSysMonitoring(true);
      pthread_mutex_lock(&mutexBack);
    }
  } // TODO: else check if we can stop the background thread (if no
  // system parameters are enabled for monitoring)
  pthread_mutex_unlock(&mutexBack);
}

void ApMon::setJobMonitoring

(

bool

jobMonitoring

)

[inline]

Enables/disables the job monitoring.

If the job monitoring is enabled, the datagrams will be sent at the default time interval.

Definition at line 678 of file ApMon.h.

                                            {
    setJobMonitoring(jobMonitoring, JOB_MONITOR_INTERVAL);
  }

void ApMon::setJobMonitoring	(	bool	jobMonitoring,
		long	interval
	)

Enables/disables the periodical sending of datagrams with job monitoring information.

Parameters:

	jobMonitoring	If it is true, the job monitoring is enabled
	interval	The time interval at which the datagrams are sent. If it is negative, a default value will be used.

Definition at line 1175 of file ApMon.cpp.

                                                              {
  char logmsg[100];
  if (jobMonitoring) {
    sprintf(logmsg, "Enabling job monitoring, time interval %ld s... ", interval);
    logger(INFO, logmsg);
  } else
    logger(INFO, "Disabling job monitoring...");

  pthread_mutex_lock(&mutexBack);
  this -> jobMonitoring = jobMonitoring;
  this -> jobMonChanged = true;
  if (jobMonitoring == true) {
    if (interval > 0)
      this -> jobMonitorInterval = interval;
    else
      this -> jobMonitorInterval = JOB_MONITOR_INTERVAL;
    setBackgroundThread(true);
  } else {
    // disable the background thread if it is not needed anymore
    if (this -> sysMonitoring == false && this -> confCheck == false)
      setBackgroundThread(false);
  }
  pthread_mutex_unlock(&mutexBack);
}

void ApMon::setLogLevel

(

char *

newLevel_s

)

[static]

Sets the ApMon logging level.

Possible values are 0 (FATAL), 1 (WARNING), 2 (INFO), 3 (FINE), 4 (DEBUG);

Definition at line 1343 of file ApMon.cpp.

                                        {
  int newLevel;
  const char *levels[5] = {"FATAL", "WARNING", "INFO", "FINE", "DEBUG"};
  char logmsg[100];

  for (newLevel = 0; newLevel < 5; newLevel++)
    if (strcmp(newLevel_s, levels[newLevel]) == 0)
      break;

  if (newLevel >= 5) {
    sprintf(logmsg, "[ setLogLevel() ] Invalid level value: %s", newLevel_s);
    logger(WARNING, logmsg);
  }
  else
    logger(0, NULL, newLevel);
}

void ApMon::setMaxMsgRate

(

int

maxRate

)

This sets the maxim number of messages that are send to MonALISA in one second.

Default, this number is 50.

Definition at line 1361 of file ApMon.cpp.

                                     {
  if (maxRate > 0)
    this -> maxMsgRate  = maxRate;
}

void ApMon::setRecheckInterval

(

long

val

)

Sets the value of the time interval (in seconds) between two recheck operations for the configuration files.

The default value is 5min. If the value is negative, the configuration rechecking is turned off. If error(s) appear when reloading the configuration, the actual interval will be increased (transparently for the user).

Definition at line 1160 of file ApMon.cpp.

                                       {
  if (val > 0) {
    setConfRecheck(true, val);
  }
  else {
    setConfRecheck(false, val);
  }
}

void ApMon::setSysMonClusterNode	(	char *	clusterName,
		char *	nodeName
	)

This function is called by the user to set the cluster name and the node name for the system monitoring datagrams.

Definition at line 1337 of file ApMon.cpp.

                                                                  {
  free (sysMonCluster); free(sysMonNode);
  sysMonCluster = strdup(clusterName);
  sysMonNode = strdup(nodeName);
}

void ApMon::setSysMonitoring

(

bool

sysMonitoring

)

[inline]

Enables/disables the system monitoring.

If the system monitoring is enabled, the datagrams will be sent at the default time interval.

Definition at line 714 of file ApMon.h.

                                            {
    setSysMonitoring(sysMonitoring, SYS_MONITOR_INTERVAL);
  }

void ApMon::setSysMonitoring	(	bool	sysMonitoring,
		long	interval
	)

Enables/disables the periodical sending of datagrams with system monitoring information.

Parameters:

	sysMonitoring	If it is true, the system monitoring is enabled
	interval	The time interval at which the datagrams are sent. If it is negative, a default value will be used.

Definition at line 1200 of file ApMon.cpp.

                                                              {
  char logmsg[100];
  if (sysMonitoring) {
    sprintf(logmsg, "Enabling system monitoring, time interval %ld s... ", interval);
    logger(INFO, logmsg);
  } else
    logger(INFO, "Disabling system monitoring...");

  pthread_mutex_lock(&mutexBack);
  this -> sysMonitoring = sysMonitoring;
  this -> sysMonChanged = true;
  if (sysMonitoring == true) {
    if (interval > 0)
      this -> sysMonitorInterval = interval;
    else
      this -> sysMonitorInterval = SYS_MONITOR_INTERVAL;
    setBackgroundThread(true);
  }  else {
    // disable the background thread if it is not needed anymore
    if (this -> jobMonitoring == false && this -> confCheck == false)
      setBackgroundThread(false);
  }
  pthread_mutex_unlock(&mutexBack);
}

bool ApMon::shouldSend

(

)

[protected]

Decides if the current datagram should be sent (so that the maximum number of datagrams per second is respected in average).

This decision is based on the number of messages previously sent.

new time, update previous counters;

reset current counter

compute the history

when we should start dropping messages

counting sent and dropped messages

Definition at line 1456 of file ApMon.cpp.

                       {

  long now = time(NULL);
  bool doSend;
  char msg[200];

  //printf("now %ld crtTime %ld\n", now, crtTime);

  if (now != crtTime){
    prvSent = hWeight * prvSent + (1.0 - hWeight) * crtSent / (now - crtTime);
    prvTime = crtTime;
    sprintf(msg, "previously sent: %ld dropped: %ld", crtSent, crtDrop);
    logger(DEBUG, msg);
    crtTime = now;
    crtSent = 0;
    crtDrop = 0;
    //printf("\n");
  }

  int valSent = (int)(prvSent * hWeight + crtSent * (1.0 - hWeight));

  doSend = true;
  int level = this -> maxMsgRate - this -> maxMsgRate / 10;


  if (valSent > (this -> maxMsgRate - level)) {
    //int max10 = this -> maxMsgRate / 10;
    int rnd  = rand() % (this -> maxMsgRate / 10);
    doSend = (rnd <  (this -> maxMsgRate - valSent));
  }
  if (doSend) {
    crtSent++;
    //printf("#");
  } else {
    crtDrop++;
    //printf(".");
  }

  return doSend;
}

void ApMon::updateGeneralInfo

(

)

[protected]

Update the general monitoring information.

Definition at line 546 of file monitor_utils.cpp.

                              {

  strcpy(cpuVendor, ""); strcpy(cpuFamily, "");
  strcpy(cpuModel, ""); strcpy(cpuModelName, "");

  if (actGenMonitorParams[GEN_CPU_MHZ] == 1 ||
      actGenMonitorParams[GEN_BOGOMIPS] == 1 ||
      actGenMonitorParams[GEN_CPU_VENDOR_ID] == 1 ||
      actGenMonitorParams[GEN_CPU_FAMILY] == 1 ||
      actGenMonitorParams[GEN_CPU_MODEL] == 1 ||
      actGenMonitorParams[GEN_CPU_MODEL_NAME] == 1) {
    try {
      ProcUtils::getCPUInfo(*this);
    } catch (procutils_error& err) {
      logger(WARNING, err.what());
      genRetResults[GEN_CPU_MHZ] = genRetResults[GEN_BOGOMIPS] = PROCUTILS_ERROR;
    }
  }

  if (actGenMonitorParams[GEN_TOTAL_MEM] == 1 ||
      actGenMonitorParams[GEN_TOTAL_SWAP] == 1) {
    try {
      ProcUtils::getSysMem(currentGenVals[GEN_TOTAL_MEM],
                           currentGenVals[GEN_TOTAL_SWAP]);
    } catch (procutils_error& perr) {
      logger(WARNING, perr.what());
      genRetResults[GEN_TOTAL_MEM] = genRetResults[GEN_TOTAL_SWAP] = PROCUTILS_ERROR;
    }
  }

  if (this -> numCPUs > 0)
    currentGenVals[GEN_NO_CPUS] = this -> numCPUs;
  else
    genRetResults[GEN_NO_CPUS] = PROCUTILS_ERROR;
}

void ApMon::updateJobInfo

(

MonitoredJob

job

)

[protected]

Update the monitoring information regarding the specified job.

Definition at line 75 of file monitor_utils.cpp.

                                          {
  bool needJobInfo, needDiskInfo;
  bool jobExists = true;
  char err_msg[200];

  PsInfo jobInfo;
  JobDirInfo dirInfo;

  /**** runtime, CPU & memory usage information ****/
  needJobInfo = actJobMonitorParams[JOB_RUN_TIME]
    || actJobMonitorParams[JOB_CPU_TIME]
    || actJobMonitorParams[JOB_CPU_USAGE]
    || actJobMonitorParams[JOB_MEM_USAGE]
    || actJobMonitorParams[JOB_VIRTUALMEM]
    || actJobMonitorParams[JOB_RSS]
    || actJobMonitorParams[JOB_OPEN_FILES];
  if (needJobInfo) {
    try {
      readJobInfo(job.pid, jobInfo);
      currentJobVals[JOB_RUN_TIME] = jobInfo.etime;
      currentJobVals[JOB_CPU_TIME] = jobInfo.cputime;
      currentJobVals[JOB_CPU_USAGE] = jobInfo.pcpu;
      currentJobVals[JOB_MEM_USAGE] = jobInfo.pmem;
      currentJobVals[JOB_VIRTUALMEM] = jobInfo.vsz;
      currentJobVals[JOB_RSS] = jobInfo.rsz;

      if (jobInfo.open_fd < 0)
        jobRetResults[JOB_OPEN_FILES] = RET_ERROR;
      currentJobVals[JOB_OPEN_FILES] = jobInfo.open_fd;

    } catch (runtime_error &err) {
      logger(WARNING, err.what());
      jobRetResults[JOB_RUN_TIME] = jobRetResults[JOB_CPU_TIME] =
        jobRetResults[JOB_CPU_USAGE] = jobRetResults[JOB_MEM_USAGE] =
        jobRetResults[JOB_VIRTUALMEM] = jobRetResults[JOB_RSS] =
        jobRetResults[JOB_OPEN_FILES] = RET_ERROR;
      strcpy(err_msg, err.what());
      if (strstr(err_msg, "does not exist") != NULL)
        jobExists = false;
    }
  }

  /* if the monitored job has terminated, remove it */
  if (!jobExists) {
    try {
      removeJobToMonitor(job.pid);
    } catch (runtime_error &err) {
      logger(WARNING, err.what());
    }
    return;
  }

  /* disk usage information */
  needDiskInfo = actJobMonitorParams[JOB_DISK_TOTAL]
    || actJobMonitorParams[JOB_DISK_USED]
    || actJobMonitorParams[JOB_DISK_FREE]
    || actJobMonitorParams[JOB_DISK_USAGE]
    || actJobMonitorParams[JOB_WORKDIR_SIZE];
  if (needDiskInfo) {
    try {
      readJobDiskUsage(job, dirInfo);
      currentJobVals[JOB_WORKDIR_SIZE] = dirInfo.workdir_size;
      currentJobVals[JOB_DISK_TOTAL] = dirInfo.disk_total;
      currentJobVals[JOB_DISK_USED] = dirInfo.disk_used;
      currentJobVals[JOB_DISK_USAGE] = dirInfo.disk_usage;
      currentJobVals[JOB_DISK_FREE] = dirInfo.disk_free;
    } catch (runtime_error& err) {
      logger(WARNING, err.what());
      jobRetResults[JOB_WORKDIR_SIZE] = jobRetResults[JOB_DISK_TOTAL]
        = jobRetResults[JOB_DISK_USED]
        = jobRetResults[JOB_DISK_USAGE]
        = jobRetResults[JOB_DISK_FREE]
        = RET_ERROR;
    }
  }
}

void ApMon::updateSysInfo

(

)

[protected]

Update the system monitoring information with new values obtained from the proc/ filesystem.

Definition at line 207 of file monitor_utils.cpp.

                          {
  int needCPUInfo, needSwapPagesInfo, needLoadInfo, needMemInfo,
    needNetInfo, needUptime, needProcessesInfo, needNetstatInfo;

  /**** CPU usage information ****/
  needCPUInfo = actSysMonitorParams[SYS_CPU_USAGE]
    || actSysMonitorParams[SYS_CPU_USR]
    || actSysMonitorParams[SYS_CPU_SYS]
    || actSysMonitorParams[SYS_CPU_NICE]
    || actSysMonitorParams[SYS_CPU_IDLE];
  if (needCPUInfo) {
    try {
      ProcUtils::getCPUUsage(*this, currentSysVals[SYS_CPU_USAGE],
                             currentSysVals[SYS_CPU_USR],
                             currentSysVals[SYS_CPU_SYS],
                             currentSysVals[SYS_CPU_NICE],
                             currentSysVals[SYS_CPU_IDLE], numCPUs);
    } catch (procutils_error &perr) {
      /* "permanent" error (the parameters could not be obtained) */
      logger(WARNING, perr.what());
      sysRetResults[SYS_CPU_USAGE] = sysRetResults[SYS_CPU_SYS] =
        sysRetResults[SYS_CPU_USR] = sysRetResults[SYS_CPU_NICE] =
        sysRetResults[SYS_CPU_IDLE] = sysRetResults[SYS_CPU_USAGE] = PROCUTILS_ERROR;
    } catch (runtime_error &err) {
      /* temporary error (next time we might be able to get the paramerers) */
      logger(WARNING, err.what());
      sysRetResults[SYS_CPU_USAGE] = sysRetResults[SYS_CPU_SYS]
        = sysRetResults[SYS_CPU_USR]
        = sysRetResults[SYS_CPU_NICE]
        = sysRetResults[SYS_CPU_IDLE]
        = sysRetResults[SYS_CPU_USAGE]
        = RET_ERROR;
    }
  }

  needSwapPagesInfo = actSysMonitorParams[SYS_PAGES_IN]
    || actSysMonitorParams[SYS_PAGES_OUT]
    || actSysMonitorParams[SYS_SWAP_IN]
    || actSysMonitorParams[SYS_SWAP_OUT];

  if (needSwapPagesInfo) {
    try {
      ProcUtils::getSwapPages(*this, currentSysVals[SYS_PAGES_IN],
                              currentSysVals[SYS_PAGES_OUT],
                              currentSysVals[SYS_SWAP_IN],
                              currentSysVals[SYS_SWAP_OUT]);
    } catch (procutils_error &perr) {
      /* "permanent" error (the parameters could not be obtained) */
      logger(WARNING, perr.what());
      sysRetResults[SYS_PAGES_IN] = sysRetResults[SYS_PAGES_OUT] =
      sysRetResults[SYS_SWAP_OUT] = sysRetResults[SYS_SWAP_IN] = PROCUTILS_ERROR;
    } catch (runtime_error &err) {
      /* temporary error (next time we might be able to get the paramerers) */
      logger(WARNING, err.what());
      sysRetResults[SYS_PAGES_IN] = sysRetResults[SYS_PAGES_OUT]
        = sysRetResults[SYS_SWAP_IN]
        = sysRetResults[SYS_SWAP_OUT]
        = RET_ERROR;
    }
  }

  needLoadInfo = actSysMonitorParams[SYS_LOAD1]
    || actSysMonitorParams[SYS_LOAD5]
    || actSysMonitorParams[SYS_LOAD15];

  if (needLoadInfo) {
    double dummyVal;
    try {
      /* the number of processes is now obtained with the getProcesses()
         function, not with getLoad() */
      ProcUtils::getLoad(currentSysVals[SYS_LOAD1], currentSysVals[SYS_LOAD5],
                         currentSysVals[SYS_LOAD15],dummyVal);
    } catch (procutils_error& perr) {
      /* "permanent" error (the parameters could not be obtained) */
      logger(WARNING, perr.what());
      sysRetResults[SYS_LOAD1] = sysRetResults[SYS_LOAD5]
        = sysRetResults[SYS_LOAD15]
        = PROCUTILS_ERROR;
    }
  }

  /**** get statistics about the current processes ****/
  needProcessesInfo = actSysMonitorParams[SYS_PROCESSES];
  if (needProcessesInfo) {
    try {
      ProcUtils::getProcesses(currentSysVals[SYS_PROCESSES],
                              currentProcessStates);
    } catch (runtime_error& err) {
      logger(WARNING, err.what());
      sysRetResults[SYS_PROCESSES] = RET_ERROR;
    }
  }

  /**** get the amount of memory currently in use ****/
  needMemInfo = actSysMonitorParams[SYS_MEM_USED]
    || actSysMonitorParams[SYS_MEM_FREE]
    || actSysMonitorParams[SYS_SWAP_USED]
    || actSysMonitorParams[SYS_SWAP_FREE]
    || actSysMonitorParams[SYS_MEM_USAGE]
    || actSysMonitorParams[SYS_SWAP_USAGE];

  if (needMemInfo) {
    try {
      ProcUtils::getMemUsed(currentSysVals[SYS_MEM_USED],
                            currentSysVals[SYS_MEM_FREE],
                            currentSysVals[SYS_SWAP_USED],
                            currentSysVals[SYS_SWAP_FREE]);
      currentSysVals[SYS_MEM_USAGE] = 100 * currentSysVals[SYS_MEM_USED] /
        (currentSysVals[SYS_MEM_USED] +  currentSysVals[SYS_MEM_FREE]);
      currentSysVals[SYS_SWAP_USAGE] = 100 * currentSysVals[SYS_SWAP_USED] /
        (currentSysVals[SYS_SWAP_USED] +  currentSysVals[SYS_SWAP_FREE]);
    } catch (procutils_error &perr) {
      logger(WARNING, perr.what());
      sysRetResults[SYS_MEM_USED] = sysRetResults[SYS_MEM_FREE] =
        sysRetResults[SYS_SWAP_USED] = sysRetResults[SYS_SWAP_FREE] =
        sysRetResults[SYS_MEM_USAGE] = sysRetResults[SYS_SWAP_USAGE] =
        PROCUTILS_ERROR;
    }
  }


  /**** network monitoring information ****/
  needNetInfo = actSysMonitorParams[SYS_NET_IN] ||
    actSysMonitorParams[SYS_NET_OUT] || actSysMonitorParams[SYS_NET_ERRS];
  if (needNetInfo && this -> nInterfaces > 0) {
    try {
      ProcUtils::getNetInfo(*this, &currentNetIn, &currentNetOut,
                            &currentNetErrs);
    } catch (procutils_error &perr) {
      logger(WARNING, perr.what());
      sysRetResults[SYS_NET_IN] = sysRetResults[SYS_NET_OUT] =
        sysRetResults[SYS_NET_ERRS] = PROCUTILS_ERROR;
    } catch (runtime_error &err) {
      logger(WARNING, err.what());
      sysRetResults[SYS_NET_IN] = sysRetResults[SYS_NET_OUT] =
        sysRetResults[SYS_NET_ERRS] = RET_ERROR;
    }
  }

  needNetstatInfo = actSysMonitorParams[SYS_NET_SOCKETS] ||
    actSysMonitorParams[SYS_NET_TCP_DETAILS];
  if (needNetstatInfo) {
    try {
      ProcUtils::getNetstatInfo(*this, this -> currentNSockets,
                                this -> currentSocketsTCP);
    } catch (runtime_error &err) {
      logger(WARNING, err.what());
      sysRetResults[SYS_NET_SOCKETS] = sysRetResults[SYS_NET_TCP_DETAILS] =
        RET_ERROR;
    }
  }

  needUptime = actSysMonitorParams[SYS_UPTIME];
  if (needUptime) {
    try {
      currentSysVals[SYS_UPTIME] = ProcUtils::getUpTime();
    } catch (procutils_error &perr) {
      logger(WARNING, perr.what());
      sysRetResults[SYS_UPTIME] = PROCUTILS_ERROR;
    }
  }

}

---

Friends And Related Function Documentation

void* bkTask

(

void *

param

)

[friend]

This function is executed in a background thread and has two roles: it automatically sends the system/job monitoring parameters (if the user requested) and it checks the configuration file/URLs for changes.

(this is done in a separate thread).

Definition at line 918 of file ApMon.cpp.

                          {
#else
DWORD WINAPI bkTask(void *param) {
#endif
  struct stat st;
#ifndef WIN32
  struct timespec delay;
#else
  DWORD delay;
#endif
  bool resourceChanged, haveChange;
  int nextOp = -1, i, ret;
  int generalInfoCount;
  time_t crtTime, timeRemained;
  time_t nextRecheck = 0, nextJobInfoSend = 0, nextSysInfoSend = 0;
  ApMon *apm = (ApMon *)param;
  char logmsg[200];

  logger(INFO, "[Starting background thread...]");
  apm -> bkThreadStarted = true;

  crtTime = time(NULL);

  pthread_mutex_lock(&(apm -> mutexBack));
  if (apm -> confCheck) {
    nextRecheck = crtTime + apm -> crtRecheckInterval;
    //sprintf(logmsg, "###1 crt %ld interv %ld recheck %ld ", crtTime,
    //   apm -> crtRecheckInterval, nextRecheck);
    //logger(FINE, logmsg);
    //fflush(stdout);
  }
  if (apm -> jobMonitoring)
    nextJobInfoSend = crtTime + apm -> jobMonitorInterval;
  if (apm -> sysMonitoring)
    nextSysInfoSend = crtTime + apm -> sysMonitorInterval;
  pthread_mutex_unlock(&(apm -> mutexBack));

  timeRemained = -1;
  generalInfoCount = 0;

  while (1) {
    pthread_mutex_lock(&apm -> mutexBack);
    if (apm -> stopBkThread) {
//      printf("### stopBkThread \n");
      pthread_mutex_unlock(&apm -> mutexBack);
      break;
    }
    pthread_mutex_unlock(&apm -> mutexBack);

    //sprintf(logmsg, "### 2 recheck %ld sys %ld ", nextRecheck,
    //    nextSysInfoSend);
    //logger(FINE, logmsg);

    /* determine the next operation that must be performed */
    if (nextRecheck > 0 && (nextJobInfoSend <= 0 ||
                            nextRecheck <= nextJobInfoSend)) {
      if (nextSysInfoSend <= 0 || nextRecheck <= nextSysInfoSend) {
        nextOp = RECHECK_CONF;
        timeRemained = nextRecheck - crtTime;
      } else {
        nextOp = SYS_INFO_SEND;
        timeRemained = nextSysInfoSend - crtTime;
      }
    } else {
      if (nextJobInfoSend > 0 && (nextSysInfoSend <= 0 ||
                                  nextJobInfoSend <= nextSysInfoSend)) {
        nextOp = JOB_INFO_SEND;
        timeRemained = nextJobInfoSend - crtTime;
      } else if (nextSysInfoSend > 0) {
        nextOp = SYS_INFO_SEND;
        timeRemained = nextSysInfoSend - crtTime;
      }
    }

    if (timeRemained == -1)
      timeRemained = RECHECK_INTERVAL;

#ifndef WIN32
    /* the moment when the next operation should be performed */
    delay.tv_sec = crtTime + timeRemained;
    delay.tv_nsec = 0;
#else
    delay = (/*crtTime +*/ timeRemained) * 1000;  // this is in millis
#endif

    pthread_mutex_lock(&(apm -> mutexBack));

    pthread_mutex_lock(&(apm -> mutexCond));
    /* check for changes in the settings */
    haveChange = false;
    if (apm -> jobMonChanged || apm -> sysMonChanged || apm -> recheckChanged)
      haveChange = true;
    if (apm -> jobMonChanged) {
      if (apm -> jobMonitoring)
        nextJobInfoSend = crtTime + apm -> jobMonitorInterval;
      else
        nextJobInfoSend = -1;
      apm -> jobMonChanged = false;
    }
    if (apm -> sysMonChanged) {
      if (apm -> sysMonitoring)
        nextSysInfoSend = crtTime + apm -> sysMonitorInterval;
      else
        nextSysInfoSend = -1;
      apm -> sysMonChanged = false;
    }
    if (apm -> recheckChanged) {
      if (apm -> confCheck) {
        nextRecheck = crtTime + apm -> crtRecheckInterval;
      }
      else
        nextRecheck = -1;
      apm -> recheckChanged = false;
    }
    pthread_mutex_unlock(&(apm -> mutexBack));

    if (haveChange) {
      pthread_mutex_unlock(&(apm -> mutexCond));
      continue;
    }

    /* wait until the next operation should be performed or until
       a change in the settings occurs */
#ifndef WIN32
    ret = pthread_cond_timedwait(&(apm -> confChangedCond),
                                &(apm -> mutexCond), &delay);
    pthread_mutex_unlock(&(apm -> mutexCond));
#else
    pthread_mutex_unlock(&(apm -> mutexCond));
    ret = WaitForSingleObject(apm->confChangedCond, delay);
#endif
    if (ret == ETIMEDOUT) {
//      printf("### ret TIMEDOUT\n");
      /* now perform the operation */
      if (nextOp == JOB_INFO_SEND) {
        apm -> sendJobInfo();
        crtTime = time(NULL);
        nextJobInfoSend = crtTime + apm -> getJobMonitorInterval();
      }

      if (nextOp == SYS_INFO_SEND) {
        apm -> sendSysInfo();
        if (apm -> getGenMonitoring()) {
          if (generalInfoCount <= 1)
            apm -> sendGeneralInfo();
          generalInfoCount = (generalInfoCount + 1) % apm -> genMonitorIntervals;
        }
        crtTime = time(NULL);
        nextSysInfoSend = crtTime + apm -> getSysMonitorInterval();
      }

      if (nextOp == RECHECK_CONF) {
        //logger(FINE, "### recheck conf");
        resourceChanged = false;
        try {
          if (apm -> initType == FILE_INIT) {
            sprintf(logmsg, "Checking for modifications for file %s ",
                    apm -> initSources[0]);
            logger(INFO, logmsg);
            stat(apm -> initSources[0], &st);
            if (st.st_mtime > apm -> lastModifFile) {
              sprintf(logmsg, "File %s modified ", apm -> initSources[0]);
              logger(INFO, logmsg);
              resourceChanged = true;
            }
          }

          // check the configuration URLs
          for (i = 0; i < apm -> confURLs.nConfURLs; i++) {
            sprintf(logmsg, "[Checking for modifications for URL %s ] ",
                   apm -> confURLs.vURLs[i]);
            logger(INFO, logmsg);
            if (urlModified(apm -> confURLs.vURLs[i], apm -> confURLs.lastModifURLs[i])) {
              sprintf(logmsg, "URL %s modified ", apm -> confURLs.vURLs[i]);
              logger(INFO, logmsg);
              resourceChanged = true;
              break;
            }
          }

          if (resourceChanged) {
            logger(INFO, "Reloading configuration...");
            if (apm -> initType == FILE_INIT)
              apm -> initialize(apm -> initSources[0], false);
            else
              apm -> initialize(apm -> nInitSources, apm -> initSources, false);
          }
          apm -> setCrtRecheckInterval(apm -> getRecheckInterval());
        } catch (runtime_error &err) {
          logger(WARNING, err.what());
          logger(WARNING, "Increasing the time interval for reloading the configuration...");
          apm -> setCrtRecheckInterval(apm -> getRecheckInterval() * 5);
        }
        crtTime = time(NULL);
        nextRecheck = crtTime + apm -> getCrtRecheckInterval();
        //sleep(apm -> getCrtRecheckInterval());
      }
    }

  } // while

#ifndef WIN32
  return NULL; // it doesn't matter what we return here
#else
  return 0;
#endif
}

friend class ProcUtils [friend]

Definition at line 1002 of file ApMon.h.

---

Member Data Documentation

int ApMon::actGenMonitorParams[MAX_GEN_PARAMS] [protected]

Definition at line 342 of file ApMon.h.

int ApMon::actJobMonitorParams[MAX_JOB_PARAMS] [protected]

Definition at line 343 of file ApMon.h.

int ApMon::actSysMonitorParams[MAX_SYS_PARAMS] [protected]

Definition at line 341 of file ApMon.h.

char ApMon::allMyIPs[20][20] [protected]

A list with all the IP addresses of the host.

Definition at line 372 of file ApMon.h.

bool ApMon::autoDisableMonitoring [protected]

If this flag is set to true, when the value of a parameter cannot be read from proc/, ApMon will not attempt to include that value in the next datagrams.

Definition at line 299 of file ApMon.h.

pthread_t ApMon::bkThread [protected]

Background thread which periodically rechecks the configuration and sends monitoring information.

Definition at line 260 of file ApMon.h.

bool ApMon::bkThreadStarted [protected]

If this flag is true, the background thread is started.

Definition at line 290 of file ApMon.h.

char* ApMon::buf [protected]

The buffer which holds the message data (encoded in XDR).

Definition at line 227 of file ApMon.h.

char* ApMon::clusterName [protected]

The name of the monitored cluster.

Definition at line 214 of file ApMon.h.

pthread_cond_t ApMon::confChangedCond [protected]

Used to notify changes in the monitoring configuration.

Definition at line 272 of file ApMon.h.

bool ApMon::confCheck [protected]

If this flag is true, the configuration file / URLs are periodically rechecked for changes.

Definition at line 237 of file ApMon.h.

ConfURLs ApMon::confURLs [protected]

Definition at line 345 of file ApMon.h.

char ApMon::cpuFamily[100] [protected]

Definition at line 406 of file ApMon.h.

char ApMon::cpuModel[100] [protected]

Definition at line 407 of file ApMon.h.

char ApMon::cpuModelName[200] [protected]

Definition at line 408 of file ApMon.h.

char ApMon::cpuVendor[100] [protected]

Definition at line 405 of file ApMon.h.

long ApMon::crtDrop [protected]

Definition at line 440 of file ApMon.h.

long ApMon::crtRecheckInterval [protected]

If the configuration URLs cannot be reloaded, the interval until the next attempt will be increased.

This is the actual value (in seconds) of the interval that is used by ApMon.

Definition at line 255 of file ApMon.h.

long ApMon::crtSent [protected]

Definition at line 439 of file ApMon.h.

long ApMon::crtTime [protected]

Definition at line 438 of file ApMon.h.

double ApMon::currentGenVals[MAX_GEN_PARAMS] [protected]

Definition at line 394 of file ApMon.h.

double ApMon::currentJobVals[MAX_JOB_PARAMS] [protected]

Definition at line 388 of file ApMon.h.

double * ApMon::currentNetErrs [protected]

Definition at line 422 of file ApMon.h.

double* ApMon::currentNetIn [protected]

The current values for the net_in, net_out, net_errs parameters.

Definition at line 422 of file ApMon.h.

double * ApMon::currentNetOut [protected]

Definition at line 422 of file ApMon.h.

double ApMon::currentNSockets[4] [protected]

The number of open TCP, UDP, ICM and Unix sockets.

Definition at line 425 of file ApMon.h.

double ApMon::currentProcessStates[NLETTERS] [protected]

Definition at line 402 of file ApMon.h.

double ApMon::currentSocketsTCP[20] [protected]

The number of TCP sockets in each possible state (ESTABLISHED, LISTEN, .

..)

Definition at line 428 of file ApMon.h.

double ApMon::currentSysVals[MAX_SYS_PARAMS] [protected]

Definition at line 382 of file ApMon.h.

char** ApMon::destAddresses [protected]

The IP addresses where the results will be sent.

Definition at line 223 of file ApMon.h.

char** ApMon::destPasswds [protected]

Passwords for the MonALISA hosts.

Definition at line 225 of file ApMon.h.

int* ApMon::destPorts [protected]

The ports where the destination hosts listen.

Definition at line 224 of file ApMon.h.

int ApMon::dgramSize [protected]

The size of the data inside the datagram (header not included).

Definition at line 228 of file ApMon.h.

bool ApMon::genMonitoring [protected]

If this flag is true, packets with general system information taken from /proc are periodically sent to MonALISA.

Definition at line 314 of file ApMon.h.

int ApMon::genMonitorIntervals [protected]

General system monitoring information is sent at a time interval equal to genMonitorIntervals * sysMonitorInterval.

Definition at line 324 of file ApMon.h.

char* ApMon::genMonitorParams[MAX_GEN_PARAMS] [protected]

Definition at line 335 of file ApMon.h.

int ApMon::genRetResults[MAX_GEN_PARAMS] [protected]

Definition at line 397 of file ApMon.h.

char ApMon::groupname[MAX_STRING_LEN] [protected]

The group to which the user belongs.

Definition at line 364 of file ApMon.h.

bool ApMon::haveBkThread [protected]

If this flag is true, the background thread is created (but not necessarily started).

Definition at line 287 of file ApMon.h.

double ApMon::hWeight [protected]

Definition at line 441 of file ApMon.h.

char** ApMon::initSources [protected]

The name(s) of the initialization source(s) (file or list).

Definition at line 242 of file ApMon.h.

int ApMon::initType [protected]

Definition at line 244 of file ApMon.h.

int ApMon::instance_id [protected]

Random number that identifies this instance of ApMon.

Definition at line 444 of file ApMon.h.

char ApMon::interfaceNames[20][20] [protected]

The names of the network interfaces.

Definition at line 411 of file ApMon.h.

bool ApMon::jobMonChanged [protected]

Definition at line 283 of file ApMon.h.

bool ApMon::jobMonitoring [protected]

If this flag is true, packets with job information taken from /proc are periodically sent to MonALISA.

Definition at line 309 of file ApMon.h.

long ApMon::jobMonitorInterval [protected]

Job/System monitoring information obtained from /proc is sent at these time intervals.

Definition at line 319 of file ApMon.h.

char* ApMon::jobMonitorParams[MAX_JOB_PARAMS] [protected]

Definition at line 336 of file ApMon.h.

int ApMon::jobRetResults[MAX_JOB_PARAMS] [protected]

Definition at line 391 of file ApMon.h.

double ApMon::lastBytesReceived[20] [protected]

Definition at line 417 of file ApMon.h.

double ApMon::lastBytesSent[20] [protected]

The total number of bytes sent through each interface, when the previous system monitoring datagram was sent.

Definition at line 416 of file ApMon.h.

time_t ApMon::lastJobInfoSend [protected]

Definition at line 359 of file ApMon.h.

long ApMon::lastModifFile [protected]

The last time when the configuration file was modified.

Definition at line 354 of file ApMon.h.

double ApMon::lastNetErrs[20] [protected]

The total number of network errors for each interface, when the previous system monitoring datagram was sent.

Definition at line 420 of file ApMon.h.

time_t ApMon::lastSysInfoSend [protected]

The moment when the last system monitoring datagram was sent.

Definition at line 378 of file ApMon.h.

double ApMon::lastSysVals[MAX_SYS_PARAMS] [protected]

Definition at line 380 of file ApMon.h.

int ApMon::maxMsgRate [protected]

Definition at line 434 of file ApMon.h.

MonitoredJob* ApMon::monJobs [protected]

Array which holds information about the jobs to be monitored.

Definition at line 351 of file ApMon.h.

pthread_mutex_t ApMon::mutex [protected]

Used to protect the general ApMon data structures.

Definition at line 263 of file ApMon.h.

pthread_mutex_t ApMon::mutexBack [protected]

Used to protect the variables needed by the background thread.

Definition at line 266 of file ApMon.h.

pthread_mutex_t ApMon::mutexCond [protected]

Used for the condition variable confChangedCond.

Definition at line 269 of file ApMon.h.

char ApMon::myHostname[MAX_STRING_LEN] [protected]

The name of the host on which ApMon currently runs.

Definition at line 366 of file ApMon.h.

char ApMon::myIP[MAX_STRING_LEN] [protected]

The main IP address of the host on which ApMon currently runs.

Definition at line 368 of file ApMon.h.

int ApMon::nDestinations [protected]

The number of destinations to send the results to.

Definition at line 222 of file ApMon.h.

int ApMon::nGenMonitorParams [protected]

Definition at line 329 of file ApMon.h.

int ApMon::nInitSources [protected]

The number of initialization sources.

Definition at line 240 of file ApMon.h.

int ApMon::nInterfaces [protected]

The number of network interfaces.

Definition at line 413 of file ApMon.h.

int ApMon::nJobMonitorParams [protected]

Definition at line 329 of file ApMon.h.

int ApMon::nMonJobs [protected]

The number of jobs that will be monitored.

Definition at line 348 of file ApMon.h.

char* ApMon::nodeName [protected]

The name of the monitored node.

Definition at line 215 of file ApMon.h.

int ApMon::nSysMonitorParams [protected]

Number of parameters that can be enabled/disabled by the user in the system/job/general monitoring datagrams.

Definition at line 329 of file ApMon.h.

int ApMon::numCPUs [protected]

The number of CPUs on the machine that runs ApMon.

Definition at line 374 of file ApMon.h.

int ApMon::numIPs [protected]

The number of IP addresses of the host.

Definition at line 370 of file ApMon.h.

double ApMon::prvDrop [protected]

Definition at line 437 of file ApMon.h.

double ApMon::prvSent [protected]

Definition at line 436 of file ApMon.h.

long ApMon::prvTime [protected]

Definition at line 435 of file ApMon.h.

bool ApMon::recheckChanged [protected]

These flags indicate changes in the monitoring configuration.

Definition at line 283 of file ApMon.h.

long ApMon::recheckInterval [protected]

The configuration file and the URLs are checked for changes at this numer of seconds (this value is requested by the user and will be used if no errors appear when reloading the configuration).

Definition at line 249 of file ApMon.h.

int ApMon::seq_nr [protected]

Sequence number for the packets that are sent to MonALISA.

MonALISA v 1.4.10 or newer is able to verify if there were lost packets.

Definition at line 448 of file ApMon.h.

char* ApMon::socketStatesMapTCP[20] [protected]

Table that associates the names of the TCP sockets states with the symbolic constants.

Definition at line 431 of file ApMon.h.

int ApMon::sockfd [protected]

Socket descriptor.

Definition at line 230 of file ApMon.h.

bool ApMon::stopBkThread [protected]

If this flag is true, there was a request to stop the background thread.

Definition at line 293 of file ApMon.h.

bool ApMon::sysInfo_first [protected]

Definition at line 376 of file ApMon.h.

bool ApMon::sysMonChanged [protected]

Definition at line 283 of file ApMon.h.

char* ApMon::sysMonCluster [protected]

The cluster name used when sending system monitoring datagrams.

Definition at line 218 of file ApMon.h.

bool ApMon::sysMonitoring [protected]

If this flag is true, packets with system information taken from /proc are periodically sent to MonALISA.

Definition at line 304 of file ApMon.h.

long ApMon::sysMonitorInterval [protected]

Definition at line 319 of file ApMon.h.

char* ApMon::sysMonitorParams[MAX_SYS_PARAMS] [protected]

Definition at line 334 of file ApMon.h.

char* ApMon::sysMonNode [protected]

The node name used when sending system monitoring datagrams.

Definition at line 220 of file ApMon.h.

int ApMon::sysRetResults[MAX_SYS_PARAMS] [protected]

Definition at line 385 of file ApMon.h.

char ApMon::username[MAX_STRING_LEN] [protected]

The name of the user who owns this process.

Definition at line 362 of file ApMon.h.

---

The documentation for this class was generated from the following files:

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiMonitor/src/DataListenerSvc/ApMon.h
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiMonitor/src/DataListenerSvc/ApMon.cpp
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r0/GaudiMonitor/src/DataListenerSvc/monitor_utils.cpp