diff options
Diffstat (limited to 'libc-top-half/musl/src/sched/affinity.c')
-rw-r--r-- | libc-top-half/musl/src/sched/affinity.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/sched/affinity.c b/libc-top-half/musl/src/sched/affinity.c new file mode 100644 index 0000000..948ece4 --- /dev/null +++ b/libc-top-half/musl/src/sched/affinity.c @@ -0,0 +1,33 @@ +#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); +} |