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git://git.musl-libc.org/musl
synced 2024-11-23 18:14:19 +08:00
fix return value of pthread_getaffinity_np and pthread_setaffinity_np
these functions are expected to return an error code rather than
setting errno and returning -1.
(cherry picked from commit 66140b0c92
)
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parent
65a0ee3a52
commit
051a8fdda8
@ -11,20 +11,23 @@ int sched_setaffinity(pid_t tid, size_t size, const cpu_set_t *set)
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int pthread_setaffinity_np(pthread_t td, size_t size, const cpu_set_t *set)
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{
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return syscall(SYS_sched_setaffinity, td->tid, size, set);
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return -__syscall(SYS_sched_setaffinity, td->tid, size, set);
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}
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static int do_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
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{
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long ret = __syscall(SYS_sched_getaffinity, tid, size, set);
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if (ret < 0) return ret;
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if (ret < size) memset((char *)set+ret, 0, size-ret);
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return 0;
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}
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int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
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{
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long ret = __syscall(SYS_sched_getaffinity, tid, size, set);
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if (ret > 0) {
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if (ret < size) memset((char *)set+ret, 0, size-ret);
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ret = 0;
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}
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return __syscall_ret(ret);
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return __syscall_ret(do_getaffinity(tid, size, set));
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}
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int pthread_getaffinity_np(pthread_t td, size_t size, cpu_set_t *set)
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{
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return sched_getaffinity(td->tid, size, set);
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return -do_getaffinity(td->tid, size, set);
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}
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