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| Linux Example:
/* Get a process' CPU affinity mask */
extern int
sched_getaffinity(pid_t pid, size_t cpusetsize, cpu_set_t *cpuset);
/* Set a process's affinity mask */
extern int
sched_setaffinity(pid_t pid, size_t cpusetsize, const cpu_set_t *cpuset);
Windows Example:
/* Set processor affinity */
BOOL WINAPI
SetProcessAffinityMask(Handle hProcess, DWORD_PTR dwProcessAffinityMask);
/* Set Thread affinity */
DWORD_PTR WINAPI
SetThreadAffinityMask(Handle hThread, DWORD_PTR dwThreadAffinityMask);
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