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/*
* mq_receive.c - functions for receiving from message queue.
*/
#include <sys/syscall.h>
#ifdef __NR_mq_timedreceive
#include <stddef.h>
#include <mqueue.h>
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
# ifndef __UCLIBC_HAS_ADVANCED_REALTIME__
extern ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
unsigned int *msg_prio,
const struct timespec *abs_timeout);
# endif
librt_hidden_proto(mq_timedreceive)
#else
# define __NR___syscall_mq_timedreceive __NR_mq_timedreceive
static _syscall5(int, __syscall_mq_timedreceive, int, mqdes,
char *, msg_ptr, size_t, msg_len, unsigned int *,
msg_prio, const void *, abs_timeout)
# ifdef __UCLIBC_HAS_ADVANCED_REALTIME__
/*
* Receive the oldest from highest priority messages.
* Stop waiting if abs_timeout expires.
*/
ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
unsigned int *msg_prio,
const struct timespec *abs_timeout)
{
return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio,
abs_timeout);
}
# endif
#endif
/* Receive the oldest from highest priority messages */
ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
unsigned int *msg_prio)
{
#ifdef __UCLIBC_HAS_THREADS_NATIVE__
return mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL);
#else
return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL);
#endif
}
#endif
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