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   mq_close.3p    ( 3 )

закрыть очередь сообщений (РЕАЛЬНОЕ ВРЕМЯ) (close a message queue (REALTIME))

Пролог (Prolog)

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.


Имя (Name)

mq_close — close a message queue (REALTIME)


Синопсис (Synopsis)

#include <mqueue.h>

int mq_close(mqd_t mqdes);


Описание (Description)

The mq_close() function shall remove the association between the message queue descriptor, mqdes, and its message queue. The results of using this message queue descriptor after successful return from this mq_close(), and until the return of this message queue descriptor from a subsequent mq_open(), are undefined.

If the process has successfully attached a notification request to the message queue via this mqdes, this attachment shall be removed, and the message queue is available for another process to attach for notification.


Возвращаемое значение (Return value)

Upon successful completion, the mq_close() function shall return a value of zero; otherwise, the function shall return a value of -1 and set errno to indicate the error.


Ошибки (Error)

The mq_close() function shall fail if:

EBADF The mqdes argument is not a valid message queue descriptor.

The following sections are informative.


Примеры (Examples)

None.

Использование в приложениях (Application usage)

None.


Обоснование (Rationale)

None.


Будущие направления (Future directions)

None.


Смотри также (See also)

mq_open(3p), mq_unlink(3p), msgctl(3p), msgget(3p), msgrcv(3p), msgsnd(3p)

The Base Definitions volume of POSIX.1‐2017, mqueue.h(0p)