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RndmEngine.cpp
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1 //====================================================================
2 // Random Engine implementation
3 //--------------------------------------------------------------------
4 //
5 // Package : Gaudi/RndmGen ( The LHCb Offline System)
6 // Author : M.Frank
7 // History :
8 // +---------+----------------------------------------------+---------
9 // | Date | Comment | Who
10 // +---------+----------------------------------------------+---------
11 // | 29/10/99| Initial version | MF
12 // +---------+----------------------------------------------+---------
13 //
14 //====================================================================
15 #define GAUDI_RANDOMGENSVC_RndmEngine_CPP
16
17 // STL include files
18 #include <cfloat>
19
20 // Framework include files
21 #include "GaudiKernel/IMessageSvc.h"
22 #include "GaudiKernel/ISvcLocator.h"
23 #include "GaudiKernel/IIncidentSvc.h"
24 #include "GaudiKernel/IOpaqueAddress.h"
25 #include "GaudiKernel/IDataProviderSvc.h"
26 #include "GaudiKernel/DataObject.h"
27 #include "GaudiKernel/MsgStream.h"
28 #include "RndmEngine.h"
29
31 RndmEngine::RndmEngine(const std::string& name, ISvcLocator* loc)
32 : base_class(name, loc)
33 {
34 }
35
37 RndmEngine::~RndmEngine() {
38 }
39
41 StatusCode RndmEngine::initialize() {
42 StatusCode status = Service::initialize();
43 if ( status.isSuccess() ) {
44 status = setProperties();
45 if ( status.isSuccess() ) {
46 m_pIncidentSvc = serviceLocator()->service("IncidentSvc");
47 if (!m_pIncidentSvc) {
48 status = StatusCode::FAILURE;
49 }
50 }
51 }
52 return status;
53 }
54
56 StatusCode RndmEngine::finalize() {
57 m_pIncidentSvc = 0; // release
58 return Service::finalize();
59 }
60
62 StreamBuffer& RndmEngine::serialize(StreamBuffer& str) {
64 return str;
65 }
66
68 StreamBuffer& RndmEngine::serialize(StreamBuffer& str) const {
69 return str;
70 }
71
73 double RndmEngine::rndm() const {
74 return DBL_MAX;
75 }
76
78 void RndmEngine::handle (const Incident& /* inc */ ) {
79 }
80
87 StatusCode RndmEngine::rndmArray( std::vector<double>& array, long howmany, long start) const {
88 long cnt = start;
89 array.resize(start+howmany);
90 for ( long i = start, num = start+howmany; i < num; i++ ) {
91 array[cnt++] = rndm();
92 }
93 return StatusCode::SUCCESS;
94 }
95
Service::initialize
StatusCode initialize() override
Definition: Service.cpp:64
StatusCode::SUCCESS
Definition: StatusCode.h:30
RndmEngine::serialize
StreamBuffer & serialize(StreamBuffer &str) override
Input serialization from stream buffer.
Definition: RndmEngine.cpp:63
ISvcLocator
The ISvcLocator is the interface implemented by the Service Factory in the Application Manager to loc...
Definition: ISvcLocator.h:25
RndmEngine::RndmEngine
RndmEngine(const std::string &name, ISvcLocator *loc)
Standard Constructor.
Definition: RndmEngine.cpp:31
gaudiComponentHelp.name
name
Definition: gaudiComponentHelp.py:28
StatusCode::FAILURE
Definition: StatusCode.h:29
Service::finalize
StatusCode finalize() override
Definition: Service.cpp:174
MsgStream.h
Service::start
StatusCode start() override
Definition: Service.cpp:137
StreamBuffer
The stream buffer is a small object collecting object data.
Definition: StreamBuffer.h:41
StatusCode::isSuccess
bool isSuccess() const
Test for a status code of SUCCESS.
Definition: StatusCode.h:74
RndmEngine::finalize
StatusCode finalize() override
Service override: finalization.
Definition: RndmEngine.cpp:56
std::vector::resize
T resize(T...args)
std::string
STL class.
ISvcLocator::service
StatusCode service(const Gaudi::Utils::TypeNameString &name, T *&svc, bool createIf=true)
Templated method to access a service by name.
Definition: ISvcLocator.h:78
IDataProviderSvc.h
RndmEngine::m_pIncidentSvc
SmartIF< IIncidentSvc > m_pIncidentSvc
Reference to the incident service.
Definition: RndmEngine.h:53
IIncidentSvc.h
StatusCode
This class is used for returning status codes from appropriate routines.
Definition: StatusCode.h:26
RndmEngine::initialize
StatusCode initialize() override
Service override: initialization.
Definition: RndmEngine.cpp:41
RndmEngine::handle
void handle(const Incident &inc) override
Inform that a new incident has occurred.
Definition: RndmEngine.cpp:78
IMessageSvc.h
RndmEngine::~RndmEngine
~RndmEngine() override
Standard Destructor.
Definition: RndmEngine.cpp:37
Service::setProperties
StatusCode setProperties()
Method for setting declared properties to the values specified for the job.
Definition: Service.cpp:295
IOpaqueAddress.h
Containers::array
struct GAUDI_API array
Parametrisation class for redirection array - like implementation.
Definition: KeyedObjectManager.h:27
std::vector< double >
RndmEngine::rndmArray
StatusCode rndmArray(std::vector< double > &array, long howmany, long start=0) const override
Multiple shots returning vector with flat random numbers.
Definition: RndmEngine.cpp:87
RndmEngine::rndm
double rndm() const override
Single shot returning single random number.
Definition: RndmEngine.cpp:73
Incident
Base class for all Incidents (computing events).
Definition: Incident.h:17
CommonMessaging
Definition: CommonMessaging.h:55
RndmEngine.h
ISvcLocator.h
Service::serviceLocator
SmartIF< ISvcLocator > & serviceLocator() const override
Retrieve pointer to service locator.
Definition: Service.cpp:292
DataObject.h