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Win32PsApi.h
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1 //====================================================================
2 // Win32PsApi.h
3 //--------------------------------------------------------------------
4 //
5 // Package : System (The LHCb System service)
6 //
7 // Description: Definition of Systems internals for WIN32
8 // This file is NOT meant to be used outside this
9 // sub-package!
10 //
11 // Author : M.Frank
12 // Created : 13/11/00
13 // Changes :
14 //====================================================================
15 #ifndef GAUDI_SYSTEM_WIN32PSAPI_H
16 #define GAUDI_SYSTEM_WIN32PSAPI_H
17 #ifdef _WIN32
18  typedef struct _MODULEINFO {
19  LPVOID lpBaseOfDll;
20  DWORD SizeOfImage;
21  LPVOID EntryPoint;
22  } MODULEINFO, *LPMODULEINFO;
23  typedef struct _PSAPI_WS_WATCH_INFORMATION {
24  LPVOID FaultingPc;
25  LPVOID FaultingVa;
26  } PSAPI_WS_WATCH_INFORMATION, *PPSAPI_WS_WATCH_INFORMATION;
27  typedef struct _PROCESS_MEMORY_COUNTERS {
28  DWORD cb;
29  DWORD PageFaultCount;
30  DWORD PeakWorkingSetSize;
31  DWORD WorkingSetSize;
32  DWORD QuotaPeakPagedPoolUsage;
33  DWORD QuotaPagedPoolUsage;
34  DWORD QuotaPeakNonPagedPoolUsage;
35  DWORD QuotaNonPagedPoolUsage;
36  DWORD PagefileUsage;
37  DWORD PeakPagefileUsage;
38  } PROCESS_MEMORY_COUNTERS;
39  typedef PROCESS_MEMORY_COUNTERS *PPROCESS_MEMORY_COUNTERS;
40 
41  class PsApiFunctions {
42  public:
43  bool m_isValid;
44  BOOL (WINAPI *EnumProcesses) (DWORD* lpidProcess, DWORD cb, DWORD * cbNeeded);
45  BOOL (WINAPI *EnumProcessModules) (HANDLE hProcess, HINSTANCE *lphModule, DWORD cb, LPDWORD lpcbNeeded);
46  DWORD (WINAPI *GetModuleBaseNameA) (HANDLE hProcess, HINSTANCE hModule, LPSTR lpBaseName, DWORD nSize );
47  DWORD (WINAPI *GetModuleFileNameExA) (HANDLE hProcess, HINSTANCE hModule, LPSTR lpFilename, DWORD nSize);
48  BOOL (WINAPI *GetModuleInformation) (HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb );
49  BOOL (WINAPI *EmptyWorkingSet) (HANDLE hProcess);
50  BOOL (WINAPI *QueryWorkingSet) (HANDLE hProcess, PVOID pv, DWORD cb );
51  BOOL (WINAPI *InitializeProcessForWsWatch)(HANDLE hProcess);
52  BOOL (WINAPI *GetWsChanges) (HANDLE hProcess, PPSAPI_WS_WATCH_INFORMATION lpWatchInfo, DWORD cb);
53  DWORD (WINAPI *GetMappedFileNameA) (HANDLE hProcess, LPVOID lpv, LPSTR lpFilename, DWORD nSize );
54  BOOL (WINAPI *EnumDeviceDrivers) (LPVOID *lpImageBase, DWORD cb, LPDWORD lpcbNeeded );
55  DWORD (WINAPI *GetDeviceDriverBaseNameA)(LPVOID ImageBase, LPSTR lpBaseName, DWORD nSize );
56  DWORD (WINAPI *GetDeviceDriverFileNameA)(LPVOID ImageBase, LPSTR lpFilename, DWORD nSize );
57  BOOL (WINAPI *GetProcessMemoryInfo) (HANDLE Process, PPROCESS_MEMORY_COUNTERS ppsmemCounters, DWORD cb );
58  void load(HINSTANCE handle, const char* name, void** pFunction) {
59  *pFunction = (void*)::GetProcAddress(handle, name);
60  if ( 0 == *pFunction ) m_isValid = false;
61  }
62  bool isValid() const {
63  return m_isValid;
64  }
65  PsApiFunctions() {
66  m_isValid = true;
67  HINSTANCE mh = ::LoadLibrary("PSAPI.DLL");
68  if ( 0 == mh ) {
69  m_isValid = false;
70  }
71  else {
72  load( mh, "EnumProcesses", (void**)&EnumProcesses );
73  load( mh, "EnumProcessModules", (void**)&EnumProcessModules );
74  load( mh, "GetModuleBaseNameA", (void**)&GetModuleBaseNameA );
75  load( mh, "GetModuleFileNameExA", (void**)&GetModuleFileNameExA );
76  load( mh, "GetModuleInformation", (void**)&GetModuleInformation );
77  load( mh, "EmptyWorkingSet", (void**)&EmptyWorkingSet );
78  load( mh, "QueryWorkingSet", (void**)&QueryWorkingSet );
79  load( mh, "InitializeProcessForWsWatch", (void**)&InitializeProcessForWsWatch );
80  load( mh, "GetWsChanges", (void**)&GetWsChanges );
81  load( mh, "GetMappedFileNameA", (void**)&GetMappedFileNameA );
82  load( mh, "EnumDeviceDrivers", (void**)&EnumDeviceDrivers );
83  load( mh, "GetDeviceDriverBaseNameA", (void**)&GetDeviceDriverBaseNameA );
84  load( mh, "GetDeviceDriverFileNameA", (void**)&GetDeviceDriverFileNameA );
85  load( mh, "GetProcessMemoryInfo", (void**)&GetProcessMemoryInfo );
86  }
87  }
88  };
89 #endif
90 
91 #endif // GAUDI_SYSTEM_WIN32PSAPI_H
System::EntryPoint
unsigned long(* EntryPoint)(const unsigned long iid, void **ppvObject)
Definition of the "generic" DLL entry point function.
Definition: System.h:35