1 /* Copyright (C) 1995-2022 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #ifndef _SYS_MSG_H 19 # error "Never use <bits/msq.h> directly; include <sys/msg.h> instead." 20 #endif 21 22 #include <bits/types.h> 23 24 /* Types used in the MSQID_DS structure definition. */ 25 typedef __syscall_ulong_t msgqnum_t; 26 typedef __syscall_ulong_t msglen_t; 27 28 #include <bits/types/struct_msqid_ds.h> 29 #include <bits/types/struct_msqid64_ds.h> 30 31 /* Define options for message queue functions. */ 32 #define MSG_NOERROR 010000 /* no error if message is too big */ 33 #ifdef __USE_GNU 34 # define MSG_EXCEPT 020000 /* recv any msg except of specified type */ 35 # define MSG_COPY 040000 /* copy (not remove) all queue messages */ 36 #endif 37 38 #ifdef __USE_MISC 39 40 # define msg_cbytes __msg_cbytes 41 42 /* ipcs ctl commands */ 43 # define MSG_STAT 11 44 # define MSG_INFO 12 45 # define MSG_STAT_ANY 13 46 47 /* buffer for msgctl calls IPC_INFO, MSG_INFO */ 48 struct msginfo 49 { 50 int msgpool; 51 int msgmap; 52 int msgmax; 53 int msgmnb; 54 int msgmni; 55 int msgssz; 56 int msgtql; 57 unsigned short int msgseg; 58 }; 59 60 #endif /* __USE_MISC */ 61