17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 23ba3594baSGarrett D'Amore * Copyright 2014 Garrett D'Amore <garrett@damore.org> 24ba3594baSGarrett D'Amore * 257c478bd9Sstevel@tonic-gate * Copyright 1999-2003 Sun Microsystems, Inc. All rights reserved. 267c478bd9Sstevel@tonic-gate * Use is subject to license terms. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 30*b4203d75SMarcel Telka /* All Rights Reserved */ 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #ifndef _SYS_MSG_H 347c478bd9Sstevel@tonic-gate #define _SYS_MSG_H 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate #include <sys/ipc.h> 377c478bd9Sstevel@tonic-gate 387c478bd9Sstevel@tonic-gate #ifdef __cplusplus 397c478bd9Sstevel@tonic-gate extern "C" { 407c478bd9Sstevel@tonic-gate #endif 417c478bd9Sstevel@tonic-gate 427c478bd9Sstevel@tonic-gate /* 437c478bd9Sstevel@tonic-gate * IPC Message Facility. 447c478bd9Sstevel@tonic-gate */ 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate /* 477c478bd9Sstevel@tonic-gate * Implementation Constants. 487c478bd9Sstevel@tonic-gate */ 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate /* 517c478bd9Sstevel@tonic-gate * Permission Definitions. 527c478bd9Sstevel@tonic-gate */ 537c478bd9Sstevel@tonic-gate #define MSG_R 0400 /* read permission */ 547c478bd9Sstevel@tonic-gate #define MSG_W 0200 /* write permission */ 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate /* 577c478bd9Sstevel@tonic-gate * ipc_perm Mode Definitions. 587c478bd9Sstevel@tonic-gate */ 597c478bd9Sstevel@tonic-gate #define MSG_RWAIT 01000 /* a reader is waiting for a message */ 607c478bd9Sstevel@tonic-gate #define MSG_WWAIT 02000 /* a writer is waiting to send */ 617c478bd9Sstevel@tonic-gate 627c478bd9Sstevel@tonic-gate /* 637c478bd9Sstevel@tonic-gate * Message Operation Flags. 647c478bd9Sstevel@tonic-gate */ 657c478bd9Sstevel@tonic-gate #define MSG_NOERROR 010000 /* no error if big message */ 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate typedef unsigned long msgqnum_t; 687c478bd9Sstevel@tonic-gate typedef unsigned long msglen_t; 697c478bd9Sstevel@tonic-gate 707c478bd9Sstevel@tonic-gate struct msg; 717c478bd9Sstevel@tonic-gate struct msqid_ds { 727c478bd9Sstevel@tonic-gate struct ipc_perm msg_perm; /* operation permission struct */ 737c478bd9Sstevel@tonic-gate struct msg *msg_first; /* ptr to first message on q */ 747c478bd9Sstevel@tonic-gate struct msg *msg_last; /* ptr to last message on q */ 757c478bd9Sstevel@tonic-gate msglen_t msg_cbytes; /* current # bytes on q */ 767c478bd9Sstevel@tonic-gate msgqnum_t msg_qnum; /* # of messages on q */ 777c478bd9Sstevel@tonic-gate msglen_t msg_qbytes; /* max # of bytes on q */ 787c478bd9Sstevel@tonic-gate pid_t msg_lspid; /* pid of last msgsnd */ 797c478bd9Sstevel@tonic-gate pid_t msg_lrpid; /* pid of last msgrcv */ 807c478bd9Sstevel@tonic-gate #if defined(_LP64) 817c478bd9Sstevel@tonic-gate time_t msg_stime; /* last msgsnd time */ 827c478bd9Sstevel@tonic-gate time_t msg_rtime; /* last msgrcv time */ 837c478bd9Sstevel@tonic-gate time_t msg_ctime; /* last change time */ 847c478bd9Sstevel@tonic-gate #else 857c478bd9Sstevel@tonic-gate time_t msg_stime; /* last msgsnd time */ 867c478bd9Sstevel@tonic-gate int32_t msg_pad1; /* reserved for time_t expansion */ 877c478bd9Sstevel@tonic-gate time_t msg_rtime; /* last msgrcv time */ 887c478bd9Sstevel@tonic-gate int32_t msg_pad2; /* time_t expansion */ 897c478bd9Sstevel@tonic-gate time_t msg_ctime; /* last change time */ 907c478bd9Sstevel@tonic-gate int32_t msg_pad3; /* time_t expansion */ 917c478bd9Sstevel@tonic-gate #endif 927c478bd9Sstevel@tonic-gate short msg_cv; 937c478bd9Sstevel@tonic-gate short msg_qnum_cv; 947c478bd9Sstevel@tonic-gate long msg_pad4[3]; /* reserve area */ 957c478bd9Sstevel@tonic-gate }; 967c478bd9Sstevel@tonic-gate 977c478bd9Sstevel@tonic-gate /* 987c478bd9Sstevel@tonic-gate * User message buffer template for msgsnd and msgrecv system calls. 997c478bd9Sstevel@tonic-gate */ 1007c478bd9Sstevel@tonic-gate 1017c478bd9Sstevel@tonic-gate #ifdef _KERNEL 1027c478bd9Sstevel@tonic-gate struct ipcmsgbuf { 1037c478bd9Sstevel@tonic-gate #else 1047c478bd9Sstevel@tonic-gate struct msgbuf { 1057c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 1067c478bd9Sstevel@tonic-gate #if defined(_XOPEN_SOURCE) 1077c478bd9Sstevel@tonic-gate long _mtype; /* message type */ 1087c478bd9Sstevel@tonic-gate char _mtext[1]; /* message text */ 1097c478bd9Sstevel@tonic-gate #else 1107c478bd9Sstevel@tonic-gate long mtype; /* message type */ 1117c478bd9Sstevel@tonic-gate char mtext[1]; /* message text */ 1127c478bd9Sstevel@tonic-gate #endif 1137c478bd9Sstevel@tonic-gate }; 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate /* 1167c478bd9Sstevel@tonic-gate * Header and message header structures for msgsnap() system call. 1177c478bd9Sstevel@tonic-gate */ 1187c478bd9Sstevel@tonic-gate struct msgsnap_head { 1197c478bd9Sstevel@tonic-gate size_t msgsnap_size; /* bytes consumed/required in the buffer */ 1207c478bd9Sstevel@tonic-gate size_t msgsnap_nmsg; /* number of messages in the buffer */ 1217c478bd9Sstevel@tonic-gate }; 1227c478bd9Sstevel@tonic-gate 1237c478bd9Sstevel@tonic-gate struct msgsnap_mhead { 1247c478bd9Sstevel@tonic-gate size_t msgsnap_mlen; /* number of bytes in message that follows */ 1257c478bd9Sstevel@tonic-gate long msgsnap_mtype; /* message type */ 1267c478bd9Sstevel@tonic-gate }; 1277c478bd9Sstevel@tonic-gate 1287c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) 1297c478bd9Sstevel@tonic-gate int msgctl(int, int, struct msqid_ds *); 1307c478bd9Sstevel@tonic-gate int msgget(key_t, int); 1317c478bd9Sstevel@tonic-gate int msgids(int *, uint_t, uint_t *); 1327c478bd9Sstevel@tonic-gate int msgsnap(int, void *, size_t, long); 1337c478bd9Sstevel@tonic-gate ssize_t msgrcv(int, void *, size_t, long, int); 1347c478bd9Sstevel@tonic-gate int msgsnd(int, const void *, size_t, int); 1357c478bd9Sstevel@tonic-gate #endif /* ! _KERNEL */ 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate #ifdef __cplusplus 1387c478bd9Sstevel@tonic-gate } 1397c478bd9Sstevel@tonic-gate #endif 1407c478bd9Sstevel@tonic-gate 1417c478bd9Sstevel@tonic-gate #endif /* _SYS_MSG_H */ 142