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Wrap sched_getaffinity

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Fixes #385
This commit is contained in:
Justine Tunney 2022-05-12 07:22:57 -07:00
parent 335d158ab6
commit ec6e0fa5f4
8 changed files with 93 additions and 10 deletions
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13
libc/calls/sched_setaffinity.c
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@ -19,6 +19,7 @@
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/dce.h"
#include "libc/limits.h"
#include "libc/nt/enum/processaccess.h"
@ -63,14 +64,18 @@ static textwindows dontinline int sys_sched_setaffinity_nt(int pid,
/**
* Asks kernel to only schedule process on particular CPUs.
*
* @param pid is the process or thread id (or 0 for caller)
* @param tid is the process or thread id (or 0 for caller)
* @param bitsetsize is byte length of bitset
* @return 0 on success, or -1 w/ errno
* @raise ENOSYS if not Linux or Windows
*/
int sched_setaffinity(int pid, uint64_t bitsetsize, const void *bitset) {
int sched_setaffinity(int tid, uint64_t bitsetsize, const void *bitset) {
int rc;
if (!IsWindows()) {
return sys_sched_setaffinity(pid, bitsetsize, bitset);
rc = sys_sched_setaffinity(tid, bitsetsize, bitset);
} else {
return sys_sched_setaffinity_nt(pid, bitsetsize, bitset);
rc = sys_sched_setaffinity_nt(tid, bitsetsize, bitset);
}
STRACE("sched_setaffinity(%d, %'zu, %p) → %d% m", tid, bitsetsize, bitset);
return rc;
}