rt_mq_destroy.2

rtlinux(realtime linix)3.0,在kernel2.2.18上编译运行

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.TH RT_MQ_DESTROY 2 "26 July 1997" "rt_ipc" "rt_ipc"
.SH NAME
rt_mq_destroy \- remove a message queue
.SH SYNOPSIS
.nf
.B #define MODULE
.B #include <linux/module.h> 
.B #include <linux/kernel.h> 
.B #include <linux/version.h> 
.B #include <linux/errno.h> 
.B #include "rt_ipc.h"
.fi
.sp
.BI "int rt_mq_destroy(rt_sem_t *" sem ");
.SH DESCRIPTION
.B rt_mq_destroy
removes a message queue previously created with
.BR rt_mq_create .
.I mq
points to the structure used in the corresponding call to
.BR rt_mq_create .
Message queue deletion safety is implemented; i.e., any tasks blocked on this 
message queue when it is destroyed are allowed to run.
.SH "RETURN VALUE"
On success, 0 is returned.  On failure, a negative value is returned
as described below.
.SH ERRORS
.IP \fB-EINVAL\fP
.I sem
does not point to a valid rt_mq_t.
.SH "AUTHOR"
Jerry Epplin <[e-mail]>
.SH "SEE ALSO"
.BR rt_mq_init (2),
.BR rt_mq_receive (2),
.BR rt_mq_send (2),
.BR rt_task_ipc_delete (2), 
.BR rt_task_ipc_init (2)