boinc/lib/procinfo_win.C

168 lines
4.7 KiB
C

#include "diagnostics_win.h"
#include "procinfo.h"
using std::vector;
// NtQuerySystemInformation
typedef NTSTATUS (WINAPI *tNTQSI)(
ULONG SystemInformationClass,
PVOID SystemInformation,
ULONG SystemInformationLength,
PULONG ReturnLength
);
// OpenThread
typedef HANDLE (WINAPI *tOT)(DWORD dwDesiredAccess, BOOL bInheritHandle, DWORD dwThreadId);
static int get_process_information(PVOID* ppBuffer, PULONG pcbBuffer) {
int retval = 0;
NTSTATUS Status = STATUS_INFO_LENGTH_MISMATCH;
HANDLE hHeap = GetProcessHeap();
HMODULE hNTDllLib = NULL;
tNTQSI pNTQSI = NULL;
hNTDllLib = GetModuleHandle("ntdll.dll");
pNTQSI = (tNTQSI)GetProcAddress(hNTDllLib, "NtQuerySystemInformation");
do {
*ppBuffer = HeapAlloc(hHeap, HEAP_ZERO_MEMORY, *pcbBuffer);
if (ppBuffer == NULL) {
retval = ERROR_NOT_ENOUGH_MEMORY;
}
Status = pNTQSI(
SystemProcessAndThreadInformation,
*ppBuffer,
*pcbBuffer,
pcbBuffer
);
if (Status == STATUS_INFO_LENGTH_MISMATCH) {
HeapFree(hHeap, NULL, *ppBuffer);
*pcbBuffer *= 2;
} else if (!NT_SUCCESS(Status)) {
HeapFree(hHeap, NULL, *ppBuffer);
retval = Status;
}
} while (Status == STATUS_INFO_LENGTH_MISMATCH);
return retval;
}
int get_procinfo_XP(vector<PROCINFO>& pi) {
ULONG cbBuffer = 32*1024; // 32k initial buffer
PVOID pBuffer = NULL;
PSYSTEM_PROCESSES pProcesses = NULL;
HMODULE hKernel32Lib;
tOT pOT = NULL;
hKernel32Lib = GetModuleHandle("kernel32.dll");
pOT = (tOT) GetProcAddress( hKernel32Lib, "OpenThread" );
get_process_information(&pBuffer, &cbBuffer);
pProcesses = (PSYSTEM_PROCESSES)pBuffer;
while (pProcesses) {
PROCINFO p;
p.id = pProcesses->ProcessId;
p.parentid = pProcesses->InheritedFromProcessId;
p.swap_size = pProcesses->VmCounters.PagefileUsage;
p.working_set_size = pProcesses->VmCounters.WorkingSetSize;
p.user_time = ((double) pProcesses->UserTime.QuadPart)/1e7;
p.kernel_time = ((double) pProcesses->KernelTime.QuadPart)/1e7;
p.id = pProcesses->ProcessId;
p.parentid = pProcesses->InheritedFromProcessId;
p.is_boinc_app = false;
pi.push_back(p);
if (!pProcesses->NextEntryDelta) {
break;
}
pProcesses = (PSYSTEM_PROCESSES)(((LPBYTE)pProcesses) + pProcesses->NextEntryDelta);
}
if (pBuffer) HeapFree(GetProcessHeap(), NULL, pBuffer);
return 0;
}
int get_procinfo_NT(vector<PROCINFO>&) {
return 0;
}
int get_procinfo_9X(vector<PROCINFO>&) {
return 0;
}
// get a list of all running processes.
//
int procinfo_setup(vector<PROCINFO>& pi) {
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(osvi);
GetVersionEx(&osvi);
pi.clear();
switch(osvi.dwPlatformId) {
case VER_PLATFORM_WIN32_WINDOWS:
// Win95, Win98, WinME
return get_procinfo_9X(pi);
case VER_PLATFORM_WIN32_NT:
switch(osvi.dwMajorVersion) {
case 4:
// WinNT 4.0
return get_procinfo_NT(pi);
case 5:
// Win2k, WinXP, Win2k3
return get_procinfo_XP(pi);
case 6:
if (osvi.dwMinorVersion == 0) {
// WinVista
return get_procinfo_XP(pi);
} else {
return get_procinfo_9X(pi);
}
default:
return get_procinfo_9X(pi);
}
}
return get_procinfo_9X(pi);
}
// scan the process table from the given point,
// adding in CPU time and mem usage
//
void add_proc_totals(PROCINFO& pi, vector<PROCINFO>& piv, int pid, int start) {
unsigned int i;
for (i=start; i<piv.size(); i++) {
PROCINFO& p = piv[i];
if (p.id == pid || p.parentid == pid) {
pi.kernel_time += p.kernel_time;
pi.user_time += p.user_time;
pi.swap_size += p.swap_size;
pi.working_set_size += p.working_set_size;
p.is_boinc_app = true;
}
if (p.parentid == pid) {
add_proc_totals(pi, piv, p.id, i+1); // recursion - woo hoo!
}
}
}
// fill in the given PROCINFO (which initially is zero except for id)
// with totals from that process and all its descendants
//
void procinfo_app(PROCINFO& pi, vector<PROCINFO>& piv) {
add_proc_totals(pi, piv, pi.id, 0);
}
void procinfo_other(PROCINFO& pi, vector<PROCINFO>& piv) {
unsigned int i;
memset(&pi, 0, sizeof(pi));
for (i=0; i<piv.size(); i++) {
PROCINFO& p = piv[i];
if (!p.is_boinc_app) {
pi.kernel_time += p.kernel_time;
pi.user_time += p.user_time;
pi.swap_size += p.swap_size;
pi.working_set_size += p.working_set_size;
p.is_boinc_app = true;
}
}
}