diff options
Diffstat (limited to 'usr/src/lib/libdscfg/common/cfg_lockd.h')
| -rw-r--r-- | usr/src/lib/libdscfg/common/cfg_lockd.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/usr/src/lib/libdscfg/common/cfg_lockd.h b/usr/src/lib/libdscfg/common/cfg_lockd.h new file mode 100644 index 0000000000..42fbc6d676 --- /dev/null +++ b/usr/src/lib/libdscfg/common/cfg_lockd.h @@ -0,0 +1,72 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _CFG_LOCKD_H +#define _CFG_LOCKD_H + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { LOCK_NOTLOCKED, /* Unlock message */ + LOCK_READ, /* ask for read lock */ + LOCK_WRITE, /* ask for write lock */ + LOCK_LOCKED, /* lock has been taken */ + LOCK_LOCKEDBY, /* who has lock? */ + LOCK_STAT, /* ask daemon to print its state */ + LOCK_ACK /* acknowledge a notlocked msg */ + } cfglockd_t; + +typedef struct sockaddr_in daemonaddr_t; + +struct lock_msg { + int32_t message; + pid_t pid; + int32_t order; + uint8_t seq; +}; + +#define CFG_PIDFILE "/var/tmp/.cfglockd.pid" +#define CFG_SERVER_PORT 50121u +#define CFG_LF_EOF -1 +#define CFG_LF_OKAY 1 +#define CFG_LF_AGAIN 0 +void cfg_lfinit(); +int cfg_filelock(int segment, int flag); +int cfg_fileunlock(int segment); +void cfg_readpid(int segment, pid_t *pidp); +void cfg_writepid(int segment, pid_t pid); +void cfg_enterpid(); +int cfg_lockd_init(); +cfglockd_t cfg_lockedby(pid_t *); +void cfg_lockd_rdlock(); +void cfg_lockd_wrlock(); +void cfg_lockd_unlock(); + +#ifdef __cplusplus +} +#endif + +#endif /* _CFG_LOCKD_H */ |