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added set_cpu_affinity

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This commit is contained in:
Darren Ranalli 2007-08-25 23:49:59 +00:00
parent 905213505f
commit da78fd9940
2 changed files with 44 additions and 10 deletions
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52
panda/src/express/trueClock.cxx
View File

@ -122,13 +122,42 @@ get_short_raw_time() {
return time; return time;
} }
////////////////////////////////////////////////////////////////////
// Function: TrueClock::set_cpu_affinity, Win32 implementation
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
typedef BOOL (WINAPI * PFNSETPROCESSAFFINITYMASK)(HANDLE, DWORD_PTR);
typedef BOOL (WINAPI * PFNGETPROCESSAFFINITYMASK)(HANDLE, PDWORD_PTR, PDWORD_PTR);
bool TrueClock::
set_cpu_affinity(PN_uint32 mask) const {
HMODULE hker = GetModuleHandle("kernel32");
if (hker != 0) {
PFNGETPROCESSAFFINITYMASK gp = (PFNGETPROCESSAFFINITYMASK)
GetProcAddress(hker, "GetProcessAffinityMask");
PFNSETPROCESSAFFINITYMASK sp = (PFNSETPROCESSAFFINITYMASK)
GetProcAddress(hker, "SetProcessAffinityMask");
if (gp != 0 && sp != 0) {
DWORD proc_mask;
DWORD sys_mask;
if (gp(GetCurrentProcess(), &proc_mask, &sys_mask)) {
// make sure we don't reference CPUs that don't exist
proc_mask = mask & sys_mask;
if (proc_mask) {
return sp(GetCurrentProcess(), proc_mask);
}
}
}
}
return false;
}
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
// Function: TrueClock::Constructor, Win32 implementation // Function: TrueClock::Constructor, Win32 implementation
// Access: Protected // Access: Protected
// Description: // Description:
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
typedef BOOL (WINAPI * PFNSETPROCESSAFFINITYMASK)(HANDLE, DWORD_PTR);
TrueClock:: TrueClock::
TrueClock() { TrueClock() {
_error_count = 0; _error_count = 0;
@ -142,14 +171,7 @@ TrueClock() {
_report_time_scale_time = 0.0; _report_time_scale_time = 0.0;
if (lock_to_one_cpu) { if (lock_to_one_cpu) {
HMODULE hker = GetModuleHandle("kernel32"); set_cpu_affinity(0x01);
if (hker != 0) {
PFNSETPROCESSAFFINITYMASK sp = (PFNSETPROCESSAFFINITYMASK)
GetProcAddress(hker, "SetProcessAffinityMask");
if (sp != 0) {
sp(GetCurrentProcess(), 1);
}
}
} }
if (get_use_high_res_clock()) { if (get_use_high_res_clock()) {
@ -555,6 +577,16 @@ get_short_raw_time() {
return (double)(tv.tv_sec - _init_sec) + (double)tv.tv_usec / 1000000.0; return (double)(tv.tv_sec - _init_sec) + (double)tv.tv_usec / 1000000.0;
} }
////////////////////////////////////////////////////////////////////
// Function: TrueClock::set_cpu_affinity, Posix implementation
// Access: Published
// Description:
////////////////////////////////////////////////////////////////////
bool TrueClock::
set_cpu_affinity(PN_int32 mask) {
return false;
}
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
// Function: TrueClock::Constructor, Posix implementation // Function: TrueClock::Constructor, Posix implementation
// Access: Protected // Access: Protected

2
panda/src/express/trueClock.h
View File

@ -62,6 +62,8 @@ PUBLISHED:
INLINE static TrueClock *get_global_ptr(); INLINE static TrueClock *get_global_ptr();
bool set_cpu_affinity(PN_uint32 mask) const;
protected: protected:
TrueClock(); TrueClock();
INLINE ~TrueClock(); INLINE ~TrueClock();