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#define _GNU_SOURCE
#include <sched.h>
#include <string.h>
#include "pthread_impl.h"
#include "syscall.h"
int sched_setaffinity(pid_t tid, size_t size, const cpu_set_t *set)
{
return syscall(SYS_sched_setaffinity, tid, size, set);
}
int pthread_setaffinity_np(pthread_t td, size_t size, const cpu_set_t *set)
{
return -__syscall(SYS_sched_setaffinity, td->tid, size, set);
}
static int do_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
{
long ret = __syscall(SYS_sched_getaffinity, tid, size, set);
if (ret < 0) return ret;
if (ret < size) memset((char *)set+ret, 0, size-ret);
return 0;
}
int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set)
{
return __syscall_ret(do_getaffinity(tid, size, set));
}
int pthread_getaffinity_np(pthread_t td, size_t size, cpu_set_t *set)
{
return -do_getaffinity(td->tid, size, set);
}
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