| /* |
| * mq_notify.c - notify process that a message is available. |
| */ |
| |
| #include <errno.h> |
| #include <stddef.h> |
| #include <sys/syscall.h> |
| |
| #include <mqueue.h> |
| |
| #ifdef __NR_mq_notify |
| |
| #define __NR___syscall_mq_notify __NR_mq_notify |
| static __inline__ _syscall2(int, __syscall_mq_notify, int, mqdes, |
| const void *, notification); |
| |
| /* Register notification upon message arrival to an empty message queue */ |
| int mq_notify(mqd_t mqdes, const struct sigevent *notification) |
| { |
| /* We don't support SIGEV_THREAD notification yet */ |
| if (notification != NULL && notification->sigev_notify == SIGEV_THREAD) { |
| __set_errno(ENOSYS); |
| return -1; |
| } |
| return __syscall_mq_notify(mqdes, notification); |
| } |
| |
| #endif |