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OpenSolaris 2009.06 - man page for msg (opensolaris section 3head)

msg.h(3HEAD)							      Headers							      msg.h(3HEAD)

NAME
msg.h, msg - message queue structures
SYNOPSIS
#include <sys/msg.h>
DESCRIPTION
The <sys/msg.h> header defines the following data types through typedef: msgqnum_t used for the number of messages in the message queue msglen_t used for the number of bytes allowed in the message queue These types are unsigned integer types that are able to store values at least as large as a type unsigned short. The <sys/msg.h> header defines the following constant as a message operation flag: MSG_NOERROR no error if big message The msqid_ds structure contains the following members: struct ipc_perm msg_perm Operation permission structure. msgqnum_t msg_qnum Number of messages currently on queue. msglen_t msg_qbytes Maximum number of bytes allowed on queue. pid_t msg_lspid Process ID of last msgsnd(2). pid_t msg_lrpid Process ID of last msgrcv(2). time_t msg_stime Time of last msgsnd(). time_t msg_rtime Time of last msgrcv(). time_t msg_ctime Time of last change. The pid_t, time_t, key_t, size_t, and ssize_t types are defined as described in <sys/types.h>. See types(3HEAD).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+
SEE ALSO
msgctl(2), msgget(2), msgrcv(2), msgsnd(2), ipc.h(3HEAD), types.h(3HEAD), attributes(5), standards(5) SunOS 5.11 10 Sep 2004 msg.h(3HEAD)

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