1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1999-2003 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #ifndef _SYS_MSG_H 32*0Sstevel@tonic-gate #define _SYS_MSG_H 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include <sys/ipc.h> 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #ifdef __cplusplus 39*0Sstevel@tonic-gate extern "C" { 40*0Sstevel@tonic-gate #endif 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate /* 43*0Sstevel@tonic-gate * IPC Message Facility. 44*0Sstevel@tonic-gate */ 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * Implementation Constants. 48*0Sstevel@tonic-gate */ 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate /* 51*0Sstevel@tonic-gate * Permission Definitions. 52*0Sstevel@tonic-gate */ 53*0Sstevel@tonic-gate #define MSG_R 0400 /* read permission */ 54*0Sstevel@tonic-gate #define MSG_W 0200 /* write permission */ 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate /* 57*0Sstevel@tonic-gate * ipc_perm Mode Definitions. 58*0Sstevel@tonic-gate */ 59*0Sstevel@tonic-gate #define MSG_RWAIT 01000 /* a reader is waiting for a message */ 60*0Sstevel@tonic-gate #define MSG_WWAIT 02000 /* a writer is waiting to send */ 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate /* 63*0Sstevel@tonic-gate * Message Operation Flags. 64*0Sstevel@tonic-gate */ 65*0Sstevel@tonic-gate #define MSG_NOERROR 010000 /* no error if big message */ 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate typedef unsigned long msgqnum_t; 68*0Sstevel@tonic-gate typedef unsigned long msglen_t; 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate struct msg; 71*0Sstevel@tonic-gate struct msqid_ds { 72*0Sstevel@tonic-gate struct ipc_perm msg_perm; /* operation permission struct */ 73*0Sstevel@tonic-gate struct msg *msg_first; /* ptr to first message on q */ 74*0Sstevel@tonic-gate struct msg *msg_last; /* ptr to last message on q */ 75*0Sstevel@tonic-gate msglen_t msg_cbytes; /* current # bytes on q */ 76*0Sstevel@tonic-gate msgqnum_t msg_qnum; /* # of messages on q */ 77*0Sstevel@tonic-gate msglen_t msg_qbytes; /* max # of bytes on q */ 78*0Sstevel@tonic-gate pid_t msg_lspid; /* pid of last msgsnd */ 79*0Sstevel@tonic-gate pid_t msg_lrpid; /* pid of last msgrcv */ 80*0Sstevel@tonic-gate #if defined(_LP64) 81*0Sstevel@tonic-gate time_t msg_stime; /* last msgsnd time */ 82*0Sstevel@tonic-gate time_t msg_rtime; /* last msgrcv time */ 83*0Sstevel@tonic-gate time_t msg_ctime; /* last change time */ 84*0Sstevel@tonic-gate #else 85*0Sstevel@tonic-gate time_t msg_stime; /* last msgsnd time */ 86*0Sstevel@tonic-gate int32_t msg_pad1; /* reserved for time_t expansion */ 87*0Sstevel@tonic-gate time_t msg_rtime; /* last msgrcv time */ 88*0Sstevel@tonic-gate int32_t msg_pad2; /* time_t expansion */ 89*0Sstevel@tonic-gate time_t msg_ctime; /* last change time */ 90*0Sstevel@tonic-gate int32_t msg_pad3; /* time_t expansion */ 91*0Sstevel@tonic-gate #endif 92*0Sstevel@tonic-gate short msg_cv; 93*0Sstevel@tonic-gate short msg_qnum_cv; 94*0Sstevel@tonic-gate long msg_pad4[3]; /* reserve area */ 95*0Sstevel@tonic-gate }; 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate /* 98*0Sstevel@tonic-gate * User message buffer template for msgsnd and msgrecv system calls. 99*0Sstevel@tonic-gate */ 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate #ifdef _KERNEL 102*0Sstevel@tonic-gate struct ipcmsgbuf { 103*0Sstevel@tonic-gate #else 104*0Sstevel@tonic-gate struct msgbuf { 105*0Sstevel@tonic-gate #endif /* _KERNEL */ 106*0Sstevel@tonic-gate #if defined(_XOPEN_SOURCE) 107*0Sstevel@tonic-gate long _mtype; /* message type */ 108*0Sstevel@tonic-gate char _mtext[1]; /* message text */ 109*0Sstevel@tonic-gate #else 110*0Sstevel@tonic-gate long mtype; /* message type */ 111*0Sstevel@tonic-gate char mtext[1]; /* message text */ 112*0Sstevel@tonic-gate #endif 113*0Sstevel@tonic-gate }; 114*0Sstevel@tonic-gate 115*0Sstevel@tonic-gate /* 116*0Sstevel@tonic-gate * Header and message header structures for msgsnap() system call. 117*0Sstevel@tonic-gate */ 118*0Sstevel@tonic-gate struct msgsnap_head { 119*0Sstevel@tonic-gate size_t msgsnap_size; /* bytes consumed/required in the buffer */ 120*0Sstevel@tonic-gate size_t msgsnap_nmsg; /* number of messages in the buffer */ 121*0Sstevel@tonic-gate }; 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate struct msgsnap_mhead { 124*0Sstevel@tonic-gate size_t msgsnap_mlen; /* number of bytes in message that follows */ 125*0Sstevel@tonic-gate long msgsnap_mtype; /* message type */ 126*0Sstevel@tonic-gate }; 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate #if !defined(_KERNEL) 129*0Sstevel@tonic-gate #if defined(__STDC__) 130*0Sstevel@tonic-gate int msgctl(int, int, struct msqid_ds *); 131*0Sstevel@tonic-gate int msgget(key_t, int); 132*0Sstevel@tonic-gate int msgids(int *, uint_t, uint_t *); 133*0Sstevel@tonic-gate int msgsnap(int, void *, size_t, long); 134*0Sstevel@tonic-gate ssize_t msgrcv(int, void *, size_t, long, int); 135*0Sstevel@tonic-gate int msgsnd(int, const void *, size_t, int); 136*0Sstevel@tonic-gate #else /* __STDC__ */ 137*0Sstevel@tonic-gate int msgctl(); 138*0Sstevel@tonic-gate int msgget(); 139*0Sstevel@tonic-gate int msgids(); 140*0Sstevel@tonic-gate int msgsnap(); 141*0Sstevel@tonic-gate int msgrcv(); 142*0Sstevel@tonic-gate int msgsnd(); 143*0Sstevel@tonic-gate #endif /* __STDC__ */ 144*0Sstevel@tonic-gate #endif /* ! _KERNEL */ 145*0Sstevel@tonic-gate 146*0Sstevel@tonic-gate #ifdef __cplusplus 147*0Sstevel@tonic-gate } 148*0Sstevel@tonic-gate #endif 149*0Sstevel@tonic-gate 150*0Sstevel@tonic-gate #endif /* _SYS_MSG_H */ 151