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/*
* 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
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