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Diffstat (limited to 'REORG.TODO/sysvipc/sys/msg.h')
-rw-r--r-- | REORG.TODO/sysvipc/sys/msg.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/REORG.TODO/sysvipc/sys/msg.h b/REORG.TODO/sysvipc/sys/msg.h new file mode 100644 index 0000000000..3610050014 --- /dev/null +++ b/REORG.TODO/sysvipc/sys/msg.h @@ -0,0 +1,82 @@ +/* Copyright (C) 1995-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_MSG_H +#define _SYS_MSG_H + +#include <features.h> + +#define __need_size_t +#include <stddef.h> + +/* Get common definition of System V style IPC. */ +#include <sys/ipc.h> + +/* Get system dependent definition of `struct msqid_ds' and more. */ +#include <bits/msq.h> + +/* Define types required by the standard. */ +#include <bits/types/time_t.h> + +#ifndef __pid_t_defined +typedef __pid_t pid_t; +# define __pid_t_defined +#endif + +#ifndef __ssize_t_defined +typedef __ssize_t ssize_t; +# define __ssize_t_defined +#endif + +/* The following System V style IPC functions implement a message queue + system. The definition is found in XPG2. */ + +#ifdef __USE_GNU +/* Template for struct to be used as argument for `msgsnd' and `msgrcv'. */ +struct msgbuf + { + __syscall_slong_t mtype; /* type of received/sent message */ + char mtext[1]; /* text of the message */ + }; +#endif + + +__BEGIN_DECLS + +/* Message queue control operation. */ +extern int msgctl (int __msqid, int __cmd, struct msqid_ds *__buf) __THROW; + +/* Get messages queue. */ +extern int msgget (key_t __key, int __msgflg) __THROW; + +/* Receive message from message queue. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern ssize_t msgrcv (int __msqid, void *__msgp, size_t __msgsz, + long int __msgtyp, int __msgflg); + +/* Send message to message queue. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int msgsnd (int __msqid, const void *__msgp, size_t __msgsz, + int __msgflg); + +__END_DECLS + +#endif /* sys/msg.h */ |