__AUDIT_MQ_GETSETATT(9) Audit Interfaces __AUDIT_MQ_GETSETATT(9)NAME
__audit_mq_getsetattr - record audit data for a POSIX MQ get/set attribute
SYNOPSIS
void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr * mqstat);
ARGUMENTS
mqdes
MQ descriptor
mqstat
MQ flags
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 __AUDIT_MQ_GETSETATT(9)
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mq_getattr(3C) Standard C Library Functions mq_getattr(3C)NAME
mq_getattr - get message queue attributes
SYNOPSIS
#include <mqueue.h>
int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
DESCRIPTION
The mqdes argument specifies a message queue descriptor. The mq_getattr() function is used to get status information and attributes of the
message queue and the open message queue description associated with the message queue descriptor. The results are returned in the mq_attr
structure referenced by the mqstat argument.
Upon return, the following members will have the values associated with the open message queue description as set when the message queue
was opened and as modified by subsequent mq_setattr(3C) calls:
mq_flags message queue flags
The following attributes of the message queue are returned as set at message queue creation:
mq_maxmsg maximum number of messages
mq_msgsize maximum message size
mq_curmsgs number of messages currently on the queue.
RETURN VALUES
Upon successful completion, the mq_getattr() function returns 0. Otherwise, the function returns -1 and sets errno to indicate the error.
ERRORS
The mq_getattr() function will fail if:
EBADF The mqdes argument is not a valid message queue descriptor.
ENOSYS The mq_getattr() function is not supported by the system.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
|ATTRIBUTE TYPE |ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
|Standard |See standards(5). |
+-----------------------------+-----------------------------+
SEE ALSO msgctl(2), msgget(2), msgrcv(2), msgsnd(2), mqueue.h(3HEAD), mq_open(3C), mq_send(3C), mq_setattr(3C), attributes(5), standards(5)NOTES
Solaris 2.6 was the first release to support the Asynchronous Input and Output option. Prior to this release, this function always returned
-1 and set errno to ENOSYS.
SunOS 5.11 5 Feb 2008 mq_getattr(3C)
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