NAME
mqclose - close a message queue descriptor SYNOPSIS
#include
int mqclose(mqdt mqdes); Link with -lrt. DESCRIPTION mqclose() closes the message queue descriptor mqdes. If the calling process has attached a notification request to this mes‐ sage queue via mqdes, then this request is removed, and another process can now attach a notification request. RETURN VALUE
On success mqclose() returns 0; on error, -1 is returned, with errno set to indicate the error. ERRORS EBADF The descriptor specified in mqdes is invalid. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌───────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├───────────┼───────────────┼─────────┤
│mqclose() │ Thread safety │ MT-Safe │ └───────────┴───────────────┴─────────┘ CONFORMING TO
POSIX.1-2001. NOTES All open message queues are automatically closed on process termina‐ tion, or upon execve(2). SEE ALSO mqgetattr(3), mqnotify(3), mqopen(3), mqreceive(3), mqsend(3), mqunlink(3), mqoverview(7) COLOPHON
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Linux 2010-08-29 MQCLOSE(3)