-#ifndef _SEMAPHORE_H
-#define _SEMAPHORE_H
+#ifndef _MQUEUE_H
+#define _MQUEUE_H
#ifdef __cplusplus
extern "C" {
#endif
+#include <features.h>
+
#define __NEED_size_t
#define __NEED_ssize_t
#define __NEED_pthread_attr_t
mqd_t mq_open(const char *, int, ...);
ssize_t mq_receive(mqd_t, char *, size_t, unsigned *);
int mq_send(mqd_t, const char *, size_t, unsigned);
-int mq_setattr(mqd_t, const struct mq_attr *, struct mq_attr *);
-ssize_t mq_timedreceive(mqd_t, char *, size_t, unsigned *, const struct timespec *);
+int mq_setattr(mqd_t, const struct mq_attr *__restrict, struct mq_attr *__restrict);
+ssize_t mq_timedreceive(mqd_t, char *__restrict, size_t, unsigned *__restrict, const struct timespec *__restrict);
int mq_timedsend(mqd_t, const char *, size_t, unsigned, const struct timespec *);
int mq_unlink(const char *);