diff options
Diffstat (limited to 'winsup/cygwin/include/cygwin/ipc.h')
| -rw-r--r-- | winsup/cygwin/include/cygwin/ipc.h | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/winsup/cygwin/include/cygwin/ipc.h b/winsup/cygwin/include/cygwin/ipc.h index c718a173a0e..8a88a108546 100644 --- a/winsup/cygwin/include/cygwin/ipc.h +++ b/winsup/cygwin/include/cygwin/ipc.h @@ -1,6 +1,6 @@ /* sys/ipc.h - Copyright 2001 Red Hat Inc. + Copyright 2001, 2002 Red Hat Inc. Written by Robert Collins <rbtcollins@hotmail.com> This file is part of Cygwin. @@ -9,45 +9,45 @@ This software is a copyrighted work licensed under the terms of the Cygwin license. Please consult the file "CYGWIN_LICENSE" for details. */ +#ifndef _SYS_IPC_H +#define _SYS_IPC_H + #ifdef __cplusplus extern "C" { #endif -#ifndef _SYS_IPC_H -#define _SYS_IPC_H - -/* sys/types must be included before sys/ipc.h. We aren't meant to automatically - * include it however +struct ipc_perm +{ + uid_t uid; /* Owner's user ID. */ + gid_t gid; /* Owner's group ID. */ + uid_t cuid; /* Creator's user ID. */ + gid_t cgid; /* Creator's group ID. */ + mode_t mode; /* Read/write permission. */ + key_t key; +}; + +/* Mode bits: */ +#define IPC_CREAT 0x0200 /* Create entry if key does not exist. */ +#define IPC_EXCL 0x0400 /* Fail if key exists. */ +#define IPC_NOWAIT 0x0800 /* Error if request must wait. */ -struct ipc_perm { - uid_t uid; - gid_t gid; - uid_t cuid; - gid_t cgid; - mode_t mode; -}; - -/* the mode flags used with the _get functions use the low order 9 bits for a mode - * request +/* Keys: */ -#define IPC_CREAT 0x0200 -#define IPC_EXCL 0x0400 -#define IPC_NOWAIT 0x0800 - -/* this is a value that will _never_ be a valid key from ftok */ -#define IPC_PRIVATE -2 +#define IPC_PRIVATE ((key_t) 0) /* Private key. */ -/* ctl commands 1000-1fff is ipc reserved */ -#define IPC_RMID 0x1003 -#define IPC_SET 0x1002 -#define IPC_STAT 0x1001 +/* Control commands: + */ +#define IPC_RMID 0x1000 /* Remove identifier. */ +#define IPC_SET 0x1001 /* Set options. */ +#define IPC_STAT 0x1002 /* Get options. */ +#define IPC_INFO 0x1003 /* For ipcs(8). */ -key_t ftok(const char *, int); - -#endif /* _SYS_IPC_H */ +key_t ftok (const char *path, int id); #ifdef __cplusplus } #endif + +#endif /* _SYS_IPC_H */ |