| 1 | /* Copyright (C) 2002 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |
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| 19 | #ifndef _SYS_MSG_H |
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| 20 | # error "Never use <bits/msq.h> directly; include <sys/msg.h> instead." |
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| 21 | #endif |
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| 22 | |
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| 23 | #include <bits/types.h> |
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| 24 | #include <bits/wordsize.h> |
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| 25 | |
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| 26 | /* Define options for message queue functions. */ |
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| 27 | #define MSG_NOERROR 010000 /* no error if message is too big */ |
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| 28 | #ifdef __USE_GNU |
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| 29 | # define MSG_EXCEPT 020000 /* recv any msg except of specified type */ |
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| 30 | #endif |
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| 31 | |
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| 32 | /* Types used in the structure definition. */ |
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| 33 | typedef unsigned long int msgqnum_t; |
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| 34 | typedef unsigned long int msglen_t; |
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| 35 | |
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| 36 | |
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| 37 | /* Structure of record for one message inside the kernel. |
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| 38 | The type `struct msg' is opaque. */ |
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| 39 | struct msqid_ds |
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| 40 | { |
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| 41 | struct ipc_perm msg_perm; /* structure describing operation permission */ |
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| 42 | #if (__WORDSIZE == 32) && !defined(__MIPSEL__) |
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| 43 | unsigned long __unused1; |
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| 44 | #endif |
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| 45 | __time_t msg_stime; /* time of last msgsnd command */ |
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| 46 | #if (__WORDSIZE == 32) && defined(__MIPSEL__) |
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| 47 | unsigned long __unused1; |
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| 48 | #endif |
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| 49 | #if (__WORDSIZE == 32) && !defined(__MIPSEL__) |
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| 50 | unsigned long __unused2; |
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| 51 | #endif |
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| 52 | __time_t msg_rtime; /* time of last msgrcv command */ |
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| 53 | #if (__WORDSIZE == 32) && defined(__MIPSEL__) |
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| 54 | unsigned long __unused2; |
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| 55 | #endif |
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| 56 | #if (__WORDSIZE == 32) && !defined(__MIPSEL__) |
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| 57 | unsigned long __unused3; |
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| 58 | #endif |
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| 59 | __time_t msg_ctime; /* time of last change */ |
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| 60 | #if (__WORDSIZE == 32) && defined(__MIPSEL__) |
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| 61 | unsigned long __unused3; |
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| 62 | #endif |
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| 63 | unsigned long int __msg_cbytes; /* current number of bytes on queue */ |
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| 64 | msgqnum_t msg_qnum; /* number of messages currently on queue */ |
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| 65 | msglen_t msg_qbytes; /* max number of bytes allowed on queue */ |
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| 66 | __pid_t msg_lspid; /* pid of last msgsnd() */ |
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| 67 | __pid_t msg_lrpid; /* pid of last msgrcv() */ |
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| 68 | unsigned long int __unused4; |
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| 69 | unsigned long int __unused5; |
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| 70 | }; |
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| 71 | |
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| 72 | #ifdef __USE_MISC |
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| 73 | |
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| 74 | # define msg_cbytes __msg_cbytes |
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| 75 | |
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| 76 | /* ipcs ctl commands */ |
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| 77 | # define MSG_STAT 11 |
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| 78 | # define MSG_INFO 12 |
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| 79 | |
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| 80 | /* buffer for msgctl calls IPC_INFO, MSG_INFO */ |
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| 81 | struct msginfo |
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| 82 | { |
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| 83 | int msgpool; |
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| 84 | int msgmap; |
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| 85 | int msgmax; |
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| 86 | int msgmnb; |
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| 87 | int msgmni; |
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| 88 | int msgssz; |
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| 89 | int msgtql; |
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| 90 | unsigned short int msgseg; |
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| 91 | }; |
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| 92 | |
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| 93 | #endif /* __USE_MISC */ |
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