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#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>
#include <windows.h>
#include <winbase.h>
=pod
Routines to manipulate CPU affinity of Win32 processes.
=cut
#if (_WIN32_WINNT < 0x0500) && (_WIN32_WINDOWS < 0x0490)
WINBASEAPI HANDLE WINAPI OpenThread(DWORD,BOOL,DWORD);
#endif
int win32_set_process_affinity(DWORD process_id, DWORD mask)
{
HANDLE handle;
BOOL result1;
if (process_id <= 0) {
process_id = GetCurrentProcessId();
}
handle = OpenProcess(0x0600, 0, process_id);
#ifdef DEBUG
fprintf(stderr, "win32_set_process_affinity(%d,%d) called\n",
process_id, mask);
fprintf(stderr, "HANDLE(%d) IS %d.\n", (int) process_id, (int) handle);
#endif
if (handle == NULL) {
return 0;
}
result1 = SetProcessAffinityMask(handle, mask);
#ifdef DEBUG
if (result1 == 0) {
fprintf(stderr, "win32_set_process_affinity: Error %d\n",
GetLastError());
}
fprintf(stderr,"SetProcessAffinityMask(%d,0x%x) => %d\n",
(int) handle, mask, (int) result1);
#endif
CloseHandle(handle);
return (int) result1;
}
int win32_get_process_affinity(DWORD process_id)
{
DWORD_PTR procMask = 0;
DWORD_PTR sysMask = 0;
HANDLE handle;
BOOL result1;
if (process_id <= 0) {
process_id = GetCurrentProcessId();
}
handle = OpenProcess(0x0400, 0, process_id);
if (handle == NULL) {
handle = OpenProcess(0x1000, 0, process_id);
}
if (handle == NULL) {
return 0;
}
result1 = GetProcessAffinityMask(handle, &procMask, &sysMask);
#ifdef DEBUG
fprintf(stderr, "win32_get_process_affinity(%d) called\n", process_id);
fprintf(stderr, "HANDLE (%d) IS %d\n", (int) process_id, (int) handle);
fprintf(stderr, "GetProcessAffinityMask(%d) => %d %d: %d\n",
handle, procMask, sysMask, (int) result1);
if (result1 == 0) {
fprintf(stderr, "win32_get_process_affinity: %d\n",
GetLastError());
}
#endif
CloseHandle(handle);
return (int) procMask;
}
MODULE = Sys::CpuAffinity PACKAGE = Sys::CpuAffinity
int
xs_win32_getAffinity_proc(pid)
int pid
CODE:
RETVAL = win32_get_process_affinity(pid);
OUTPUT:
RETVAL
int
xs_win32_setAffinity_proc(pid,mask)
int pid
int mask
CODE:
RETVAL = win32_set_process_affinity(pid,mask);
OUTPUT:
RETVAL
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