git://sourceware.org / glibc.git / blame
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|---|---|---|
| d2f5be2a UD |
1 | /* Copyright (C) 1995 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. | |
| 4 | ||
| 5 | The GNU C Library is free software; you can redistribute it and/or | |
| 6 | modify it under the terms of the GNU Library General Public License as | |
| 7 | published by the Free Software Foundation; either version 2 of the | |
| 8 | License, or (at your option) any later version. | |
| 9 | ||
| 10 | The GNU C Library is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | Library General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Library General Public | |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If | |
| 17 | not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 18 | Boston, MA 02111-1307, USA. */ | |
| 19 | ||
| 20 | #ifndef _SYS_MSQ_BUF_H | |
| 21 | #define _SYS_MSQ_BUF_H | |
| 22 | ||
| 23 | #include <features.h> | |
| 24 | #include <sys/types.h> | |
| 25 | ||
| 26 | /* Define options for message queue functions. */ | |
| 27 | #define MSG_NOERROR 010000 /* no error if message is too big */ | |
| 28 | #define MSG_EXCEPT 020000 /* recv any msg except of specified type */ | |
| 29 | ||
| 30 | ||
| 31 | __BEGIN_DECLS | |
| 32 | ||
| 33 | /* Structure of record for one message inside the kernel. | |
| 34 | The type `struct __msg' is opaque. */ | |
| 35 | struct msqid_ds | |
| 36 | { | |
| 37 | struct ipc_perm msg_perm; /* structure describing operation permission */ | |
| 38 | struct msg *__msg_first; /* pointer to first message on queue */ | |
| 39 | struct msg *__msg_last; /* pointer to last message on queue */ | |
| 40 | __time_t msg_stime; /* time of last msgsnd command */ | |
| 41 | __time_t msg_rtime; /* time of last msgrcv command */ | |
| 42 | __time_t msg_ctime; /* time of last change */ | |
| 43 | struct wait_queue *__wwait; /* ??? */ | |
| 44 | struct wait_queue *__rwait; /* ??? */ | |
| 45 | unsigned short int __msg_cbytes;/* current number of bytes on queue */ | |
| 46 | unsigned short int msg_qnum; /* number of messages currently on queue */ | |
| 47 | unsigned short int msg_qbytes;/* max number of bytes allowed on queue */ | |
| 48 | __pid_t msg_lspid; /* pid of last msgsnd() */ | |
| 49 | __pid_t msg_lrpid; /* pid of last msgrcv() */ | |
| 50 | }; | |
| 51 | ||
| 84724245 RM |
52 | #ifdef __USE_MISC |
| 53 | ||
| 54 | #define msg_cbytes __msg_cbytes | |
| 55 | ||
| 56 | /* ipcs ctl commands */ | |
| 57 | #define MSG_STAT 11 | |
| 58 | #define MSG_INFO 12 | |
| 59 | ||
| 60 | /* buffer for msgctl calls IPC_INFO, MSG_INFO */ | |
| 61 | struct msginfo { | |
| 62 | int msgpool; | |
| 63 | int msgmap; | |
| 64 | int msgmax; | |
| 65 | int msgmnb; | |
| 66 | int msgmni; | |
| 67 | int msgssz; | |
| 68 | int msgtql; | |
| 69 | ushort msgseg; | |
| 70 | }; | |
| 71 | ||
| 72 | #endif /* __USE_MISC */ | |
| 73 | ||
| d2f5be2a UD |
74 | __END_DECLS |
| 75 | ||
| 76 | #endif /* sys/msq_buf.h */ |