diff options
Diffstat (limited to 'src/sched')
-rw-r--r-- | src/sched/sched_cpucount.c | 11 | ||||
-rw-r--r-- | src/sched/sched_getaffinity.c | 10 | ||||
-rw-r--r-- | src/sched/sched_setaffinity.c | 8 |
3 files changed, 29 insertions, 0 deletions
diff --git a/src/sched/sched_cpucount.c b/src/sched/sched_cpucount.c new file mode 100644 index 00000000..94aa259e --- /dev/null +++ b/src/sched/sched_cpucount.c @@ -0,0 +1,11 @@ +#define _GNU_SOURCE +#include <sched.h> + +int __sched_cpucount(size_t size, const cpu_set_t *set) +{ + size_t i, j, cnt=0; + const unsigned char *p = (const void *)set; + for (i=0; i<size; i++) for (j=0; j<8; j++) + if (p[i] & (1<<j)) cnt++; + return cnt; +} diff --git a/src/sched/sched_getaffinity.c b/src/sched/sched_getaffinity.c new file mode 100644 index 00000000..0aa4c65a --- /dev/null +++ b/src/sched/sched_getaffinity.c @@ -0,0 +1,10 @@ +#define _GNU_SOURCE +#include <sched.h> +#include "syscall.h" + +int sched_getaffinity(pid_t tid, size_t size, cpu_set_t *set) +{ + long ret = __syscall(SYS_sched_getaffinity, tid, size, set); + if (ret > 0) ret = 0; + return __syscall_ret(ret); +} diff --git a/src/sched/sched_setaffinity.c b/src/sched/sched_setaffinity.c new file mode 100644 index 00000000..4344df17 --- /dev/null +++ b/src/sched/sched_setaffinity.c @@ -0,0 +1,8 @@ +#define _GNU_SOURCE +#include <sched.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); +} |