mqueue(5)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

NAME

mqueue- message queues

SYNOPSIS

#include <mqueue.h> 

DESCRIPTION

The <mqueue.h> header defines the mqd_t type, which is used for message queue descriptors. This will not be an array type. A message queue descriptor may be implemented using a file descriptor, in which case applications can open up to at least OPEN_MAX file and message queues.

The <mqueue.h> header defines the sigevent structure (as described in <signal.h>, see signal(5)) and the mq_attr structure, which is used in getting and setting the attributes of a message queue. Attributes are initially set when the message queue is created. A mq_attr structure has the following members:

long mq_flags message queue flags long mq_maxmsg maximum number of messages long mq_msgsize maximum message size long mq_curmsgs number of messages currently queued

Inclusion of the <mqueue.h> header may make visible symbols defined in the headers <fcntl.h>, <signal.h>, <sys/types.h>, and <time.h>.

SEE ALSO

fcntl(5), signal(5), time(5), types(5)

SunOS 5.7  Last Revised 1 Jul 1998

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO