/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_MSG_IMPL_H
#define _SYS_MSG_IMPL_H
#include <sys/ipc_impl.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* Argument vectors for the various flavors of msgsys().
*/
#define MSGGET 0
typedef struct msgq_wakeup {
typedef struct msg_select {
} msg_select_t;
/*
* There is one msg structure for each message in the system.
*/
struct msg {
};
/*
* Per message flags
*/
/*
* msg_rcv_cv is now an array of kcondvar_t for performance reason.
* We use multiple condition variables (kcondvar_t) to avoid needing
* to wake all readers when sending a single message.
*/
typedef struct kmsqid {
/*
* linked list of routines used to determine what to wake up next.
* msg_fnd_sndr: Routines for waking up readers waiting
* for a message from the sender.
* msg_fnd_rdr: Routines for waking up readers waiting
* for a copyout to finish.
*/
/*
* Various counts and queues for controlling the sleeping
* and waking up of processes that are waiting for various
* message queue events.
*
* msg_cpy_block: List of receiving threads that are blocked because
* the message of choice is being copied out.
* msg_wait_snd: List of receiving threads whose type specifier
* is positive or 0 but are blocked because there
* are no matches.
* msg_wait_snd_ngt:
* List of receiving threads whose type specifier is
* negative message type but are blocked because
* there are no types that qualify.
* msg_wait_rcv: List of sending threads that are blocked because
* there is no room left on the message queue.
*/
} kmsqid_t;
#endif /* _KERNEL */
#if defined(_SYSCALL32)
/*
* LP64 view of the ILP32 msgbuf structure
*/
struct ipcmsgbuf32 {
};
/*
* LP64 view of the ILP32 msgsnap_head and msgsnap_mhead structures
*/
struct msgsnap_head32 {
};
struct msgsnap_mhead32 {
};
/*
* LP64 view of the ILP32 msqid_ds structure
*/
struct msqid_ds32 {
};
#endif /* _SYSCALL32 */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_MSG_IMPL_H */