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ModuleInfo.cpp
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1 //====================================================================
2 // ModuleInfo.cpp
3 //--------------------------------------------------------------------
4 //
5 // Package : System (The LHCb System service)
6 //
7 // Description: Implementation of Systems internals
8 //
9 // Author : M.Frank
10 // Created : 13/1/99
11 // Changes :
12 //====================================================================
13 #define SYSTEM_MODULEINFO_CPP
14
15 //#include <ctime>
16 #include <cstdlib>
17 #include <cstring>
18 //#include <iostream>
19 //#include <typeinfo>
20
21 #include "GaudiKernel/ModuleInfo.h"
22 #include "GaudiKernel/System.h"
23
24 #ifdef _WIN32
25 #define NOMSG
26 #define NOGDI
27 #define strcasecmp _stricmp
28 #define strncasecmp _strnicmp
29 #include "Win32PsApi.h"
30 #include "process.h"
31 #include "windows.h"
32 static PsApiFunctions _psApi;
33 #define getpid _getpid
34 #undef NOMSG
35 #undef NOGDI
36 #ifndef PATH_MAX
37 #define PATH_MAX 1024
38 #endif
39 #else // UNIX...: first the EGCS stuff, then the OS dependent includes
40 #include "libgen.h"
41 #include "sys/param.h"
42 #include "sys/times.h"
43 #include "unistd.h"
44 #include <cstdio>
45 #include <dlfcn.h>
46 #include <errno.h>
47 #include <string.h>
48 #endif
49
50 static System::ImageHandle ModuleHandle = nullptr;
51 static std::vector<std::string> s_linkedModules;
52
54 const std::string& System::moduleName()
55 {
56 static std::string module( "" );
57 if ( module == "" ) {
58 if ( processHandle() && moduleHandle() ) {
59 #ifdef _WIN32
60 char moduleName[256] = {"Unknown.module"};
61 moduleName[0] = 0;
62 if ( _psApi ) {
63 _psApi.GetModuleBaseNameA( processHandle(), (HINSTANCE)moduleHandle(), moduleName, sizeof( moduleName ) );
64 }
65 std::string mod = moduleName;
66 #elif defined( __linux ) || defined( __APPLE__ )
67 std::string mod = ::basename( (char*)( (Dl_info*)moduleHandle() )->dli_fname );
68 #elif __hpux
69 std::string mod = ::basename( ( (HMODULE*)moduleHandle() )->dsc.filename );
70 #endif
71 module = mod.substr( 0, mod.rfind( '.' ) );
72 }
73 }
74 return module;
75 }
76
78 const std::string& System::moduleNameFull()
79 {
80 static std::string module( "" );
81 if ( module == "" ) {
82 if ( processHandle() && moduleHandle() ) {
83 char name[PATH_MAX] = {"Unknown.module"};
84 name[0] = 0;
85 #ifdef _WIN32
86 if ( _psApi ) {
87 _psApi.GetModuleFileNameExA( processHandle(), (HINSTANCE)moduleHandle(), name, sizeof( name ) );
88 module = name;
89 }
90 #else
91 const char* path =
92 #if defined( __linux ) || defined( __APPLE__ )
93 ( (Dl_info*)moduleHandle() )->dli_fname;
94 #elif __hpux
95 ( (HMODULE*)moduleHandle() )->dsc.filename;
96 #endif
97 if (::realpath( path, name ) ) module = name;
98 #endif
99 }
100 }
101 return module;
102 }
103
105 System::ModuleType System::moduleType()
106 {
107 static ModuleType type = UNKNOWN;
108 if ( type == UNKNOWN ) {
109 const std::string& module = moduleNameFull();
110 int loc = module.rfind( '.' ) + 1;
111 if ( loc == 0 )
112 type = EXECUTABLE;
113 else if ( module[loc] == 'e' || module[loc] == 'E' )
114 type = EXECUTABLE;
115 #ifdef _WIN32
116 else if ( module[loc] == 'd' || module[loc] == 'D' )
117 #else
118 else if ( module[loc] == 's' && module[loc + 1] == 'o' )
119 #endif
120 type = SHAREDLIB;
121 else
122 type = UNKNOWN;
123 }
124 return type;
125 }
126
128 void* System::processHandle()
129 {
130 static long pid = ::getpid();
131 #ifdef _WIN32
132 static HANDLE hP = ::OpenProcess( PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, pid );
133 #else
134 static void* hP = (void*)pid;
135 #endif
136 return hP;
137 }
138
139 void System::setModuleHandle( System::ImageHandle handle ) { ModuleHandle = handle; }
140
141 System::ImageHandle System::moduleHandle()
142 {
143 if ( !ModuleHandle ) {
144 if ( processHandle() ) {
145 #ifdef _WIN32
146 static HINSTANCE handle = 0;
147 DWORD cbNeeded;
148 if ( 0 == handle && _psApi ) {
149 if ( _psApi.EnumProcessModules( processHandle(), &handle, sizeof( ModuleHandle ), &cbNeeded ) ) {
150 }
151 }
152 return handle;
153 #elif defined( __linux ) || defined( __APPLE__ )
154 static Dl_info info;
155 if ( 0 != ::dladdr(
156 #if __GNUC__ < 4
157 (void*)System::moduleHandle
158 #else
159 FuncPtrCast<void*>( System::moduleHandle )
160 #endif
161 ,
162 &info ) ) {
163 return &info;
164 }
165 #elif __hpux
166 return 0; // Don't know how to solve this .....
167 #endif
168 }
169 }
170 return ModuleHandle;
171 }
172
173 System::ImageHandle System::exeHandle()
174 {
175 #ifdef _WIN32
176 if ( processHandle() ) {
177 static HINSTANCE handle = 0;
178 DWORD cbNeeded;
179 if ( 0 == handle && _psApi ) {
180 if ( _psApi.EnumProcessModules( processHandle(), &handle, sizeof( ModuleHandle ), &cbNeeded ) ) {
181 }
182 }
183 return handle;
184 }
185 return 0;
186 #elif defined( __linux ) || defined( __APPLE__ )
187 // This does NOT work!
188 static Dl_info infoBuf, *info = &infoBuf;
189 if ( !info ) {
190 void* handle = ::dlopen( nullptr, RTLD_LAZY );
191 // printf("Exe handle:%X\n", handle);
192 if ( handle ) {
193 void* func = ::dlsym( handle, "main" );
194 // printf("Exe:Func handle:%X\n", func);
195 if ( func ) {
196 if ( 0 != ::dladdr( func, &infoBuf ) ) {
197 // std::cout << "All OK" << std::endl;
198 info = &infoBuf;
199 }
200 }
201 }
202 }
203 return info;
204 #elif __hpux
205 // Don't know how to solve this .....
206 return 0;
207 #endif
208 }
209
210 const std::string& System::exeName()
211 {
212 static std::string module( "" );
213 if ( module.length() == 0 ) {
214 char name[PATH_MAX] = {"Unknown.module"};
215 name[0] = 0;
216 #ifdef _WIN32
217 if ( _psApi && processHandle() ) {
218 _psApi.GetModuleFileNameExA( processHandle(), (HINSTANCE)exeHandle(), name, sizeof( name ) );
219 module = name;
220 }
221 #elif defined( __linux ) || defined( __APPLE__ )
222 char cmd[512];
223 ::sprintf( cmd, "/proc/%d/exe", ::getpid() );
224 module = "Unknown";
225 if (::readlink( cmd, name, sizeof( name ) ) >= 0 ) module = name;
226 #elif __hpux
227 if (::realpath( ( (HMODULE*)exeHandle() )->dsc.filename, name ) ) module = name;
228 #endif
229 }
230 return module;
231 }
232
233 const std::vector<std::string> System::linkedModules()
234 {
235 if ( s_linkedModules.size() == 0 ) {
236 #ifdef _WIN32
237 char name[255]; // Maximum file name length on NT 4.0
238 DWORD cbNeeded;
239 HINSTANCE handle[1024];
240 if ( _psApi ) {
241 if ( _psApi.EnumProcessModules( processHandle(), handle, sizeof( handle ), &cbNeeded ) ) {
242 for ( size_t i = 0; i < cbNeeded / sizeof( HANDLE ); i++ ) {
243 if ( 0 < _psApi.GetModuleFileNameExA( processHandle(), handle[i], name, sizeof( name ) ) ) {
244 s_linkedModules.push_back( name );
245 }
246 }
247 }
248 }
249 #elif defined( __linux ) || defined( __APPLE__ )
250 char ff[512], cmd[1024], fname[1024], buf1[64], buf2[64], buf3[64], buf4[64];
251 ::sprintf( ff, "/proc/%d/maps", ::getpid() );
252 FILE* maps = ::fopen( ff, "r" );
253 while (::fgets( cmd, sizeof( cmd ), maps ) ) {
254 int len;
255 sscanf( cmd, "%s %s %s %s %d %s", buf1, buf2, buf3, buf4, &len, fname );
256 if ( len > 0 && strncmp( buf2, "r-xp", strlen( "r-xp" ) ) == 0 ) {
257 s_linkedModules.push_back( fname );
258 }
259 }
260 ::fclose( maps );
261 #endif
262 }
263 return s_linkedModules;
264 }
System::moduleType
GAUDI_API ModuleType moduleType()
Get type of the module.
Definition: ModuleInfo.cpp:105
System.h
System::SHAREDLIB
Definition: ModuleInfo.h:29
GaudiPython.HistoUtils.path
path
Definition: HistoUtils.py:895
gaudiComponentHelp.name
name
Definition: gaudiComponentHelp.py:32
System::setModuleHandle
GAUDI_API void setModuleHandle(ImageHandle handle)
Attach module handle.
Definition: ModuleInfo.cpp:139
System::moduleNameFull
GAUDI_API const std::string & moduleNameFull()
Get the full name of the (executable/DLL) file.
Definition: ModuleInfo.cpp:78
std::string::rfind
T rfind(T...args)
Gaudi.CommonGaudiConfigurables.mod
mod
Definition: CommonGaudiConfigurables.py:22
ModuleInfo.h
System::processHandle
GAUDI_API ProcessHandle processHandle()
Handle to running process.
Definition: ModuleInfo.cpp:128
System::ImageHandle
void * ImageHandle
Definition of an image handle.
Definition: ModuleInfo.h:31
std::string
STL class.
Win32PsApi.h
System::exeName
GAUDI_API const std::string & exeName()
Name of the executable file running.
Definition: ModuleInfo.cpp:210
std::vector::push_back
T push_back(T...args)
GaudiPluginService.cpluginsvc.func
func
Definition: cpluginsvc.py:229
root_map_dump.maps
maps
Definition: root_map_dump.py:57
gaudirun.type
type
Definition: gaudirun.py:133
System::ModuleType
ModuleType
Definition: ModuleInfo.h:29
System::moduleHandle
GAUDI_API ImageHandle moduleHandle()
Handle to currently executed module.
Definition: ModuleInfo.cpp:141
System::EXECUTABLE
Definition: ModuleInfo.h:29
System::exeHandle
GAUDI_API ImageHandle exeHandle()
Handle to the executable file running.
Definition: ModuleInfo.cpp:173
System::linkedModules
GAUDI_API const std::vector< std::string > linkedModules()
Vector of names of linked modules.
Definition: ModuleInfo.cpp:233
GaudiKernel.Constants.FALSE
bool FALSE
Definition: Constants.py:21
std::string::length
T length(T...args)
std::vector< std::string >
System::moduleName
GAUDI_API const std::string & moduleName()
Get the name of the (executable/DLL) file without file-type.
Definition: ModuleInfo.cpp:54
std::string::substr
T substr(T...args)
Io::UNKNOWN
Definition: IFileMgr.h:157
svn_tag_release.basename
def basename(url)
Definition: svn_tag_release.py:28