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/* mqueue.h: POSIX message queue interface
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <time.h>
#include <sys/types.h>
#include <sys/signal.h>
#include <sys/cdefs.h>
#ifndef _MQUEUE_H
#define _MQUEUE_H
__BEGIN_DECLS
typedef intptr_t mqd_t;
struct mq_attr {
long mq_flags; /* Message queue flags */
long mq_maxmsg; /* Max number of messages in queue */
long mq_msgsize; /* Max message size */
long mq_curmsgs; /* Current number of messages in queue */
};
int mq_close (mqd_t);
int mq_getattr (mqd_t, struct mq_attr *);
int mq_notify (mqd_t, const struct sigevent *);
mqd_t mq_open (const char *, int, ...);
ssize_t mq_receive (mqd_t, char *, size_t, unsigned int *);
int mq_send (mqd_t, const char *, size_t, unsigned int);
int mq_setattr (mqd_t, const struct mq_attr *, struct mq_attr *);
ssize_t mq_timedreceive (mqd_t, char *, size_t, unsigned int *,
const struct timespec *);
int mq_timedsend (mqd_t, const char *, size_t, unsigned int,
const struct timespec *);
int mq_unlink (const char *name);
__END_DECLS
#endif /* _MQUEUE_H */
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