Removes a message from an open POSIX message queue.
Arguments
eax |
280 |
ebx |
Open message queue descriptor. |
ecx |
Pointer to a buffer which will receive the message. |
edx |
Size of the buffer pointed by ecx. |
esi |
Non-negative integer that specifies the priority of this message. Messages are placed on the queue in decreasing order of priority, with newer messages of the same priority being placed after older messages with the same priority. |
edi |
If the queue is full and the O_NONBLOCK flag is not enabled for the message queue description, then edi points to a timespec structure which specifies a ceiling on the time for which the call will block. This ceiling is an absolute timeout in seconds and nanoseconds since the Epoch (midnight on the morning of 1 January 1970). |
Return values
If the system call succeeds the return value is 0.
If the system call fails the return value is one of the following errno values:
-EAGAIN |
The queue was empty, and the O_NONBLOCK flag was set for the message queue. |
-EBADF |
The descriptor specified in ebx was invalid. |
-EMSGSIZE |
edx was greater than the mq_msgsize attribute of the message queue. |
-EINTR |
The call was interrupted by a signal handler. |
-EINVAL |
The call would have blocked, and timespec pointed by edi was invalid, either because tv_sec was less than zero, or because tv_nsec was less than zero or greater than 1000 million. |
-ETIMEDOUT |
The call timed out before a message could be transferred. |
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Remarks
See samples/ipc/posix_msg.asm for an example.
Compatibility
n/a |