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/*
* 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
*/
/*
* db_headers.h
*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _DB_HEADERS_H
#define _DB_HEADERS_H
#include <rpc/rpc.h>
#include <syslog.h>
#include <stdlib.h>
#include <setjmp.h>
#ifdef __cplusplus
extern "C" {
#endif
extern int verbose;
#ifdef __cplusplus
}
#endif
extern jmp_buf dbenv;
#define FATAL(msg, fcode) \
{ \
syslog(LOG_ERR, "ERROR: %s", (msg)); \
__nisdb_get_tsd()->fatalcode = (int)(fcode); \
__nisdb_get_tsd()->fatalmsg = msg; \
return; \
}
#define FATAL3(msg, fcode, retval) \
{ \
syslog(LOG_ERR, "ERROR: %s", (msg)); \
__nisdb_get_tsd()->fatalcode = (int)(fcode); \
__nisdb_get_tsd()->fatalmsg = msg; \
return (retval); \
}
#ifdef NISDB_MT_DEBUG
#define LOCKVAL(lockcall, msg, lockcode) \
{ \
lockcode = lockcall(); \
if (lockcode != 0) { \
__nisdb_get_tsd()->fatalcode = lockcode; \
__nisdb_get_tsd()->fatalmsg = msg; \
abort(); \
} \
}
#else
#define LOCKVAL(lockcall, msg, lockcode) \
{ \
lockcode = lockcall(); \
if (lockcode != 0) { \
__nisdb_get_tsd()->fatalcode = lockcode; \
__nisdb_get_tsd()->fatalmsg = msg; \
} \
}
#endif /* NISDB_MT_DEBUG */
#define LOCKV(lockcall, msg) \
{ \
int lockcode; \
LOCKVAL(lockcall, msg, lockcode); \
if (lockcode != 0) \
return; \
}
#define LOCK(lockcall, retval, msg) \
{ \
int lockcode; \
LOCKVAL(lockcall, msg, lockcode); \
if (lockcode != 0) \
return (retval); \
}
/* Read lock/unlock 'this', return 'retval' is unsuccessful, and save 'msg' */
#define READLOCK(this, retval, msg) \
LOCK(this->acqnonexcl, retval, msg)
#define READUNLOCK(this, retval, msg) \
LOCK(this->relnonexcl, retval, msg)
/* Ditto, but return without a value (i.e., a "void" function */
#define READLOCKV(this, msg) \
LOCKV(this->acqnonexcl, msg)
#define READUNLOCKV(this, msg) \
LOCKV(this->relnonexcl, msg)
/* As READLOCK/READUNLOCK, but set rescode instead of returning on failure */
#define READLOCKNR(this, rescode, msg) \
LOCKVAL(this->acqnonexcl, msg, rescode)
#define READUNLOCKNR(this, rescode, msg) \
LOCKVAL(this->relnonexcl, msg, rescode)
/* As READLOCK/READUNLOCK, but use a write lock */
#define WRITELOCK(this, retval, msg) \
LOCK(this->acqexcl, retval, msg)
#define WRITEUNLOCK(this, retval, msg) \
LOCK(this->relexcl, retval, msg)
/* Non-blocking write lock */
#define TRYWRITELOCK(this, rescode, msg) \
LOCKVAL(this->tryacqexcl, msg, rescode)
/* Ditto, but return without a value */
#define WRITELOCKV(this, msg) \
LOCKV(this->acqexcl, msg)
#define WRITEUNLOCKV(this, msg) \
LOCKV(this->relexcl, msg)
/* As WRITELOCK/WRITEUNLOCK, but set rescode instead of returning on failure */
#define WRITELOCKNR(this, rescode, msg) \
LOCKVAL(this->acqexcl, msg, rescode)
#define WRITEUNLOCKNR(this, rescode, msg) \
LOCKVAL(this->relexcl, msg, rescode)
/* Apply a second write lock when already holding another write lock */
#define WRITELOCK2(this, retval, msg, that) \
if (this != 0) { \
int lockcode1, lockcode2; \
WRITELOCKNR(this, lockcode2, msg); \
if (lockcode2 != 0) { \
WRITEUNLOCKNR(that, lockcode1, msg); \
return (retval); \
} \
}
/* Release two write locks */
#define WRITEUNLOCK2(this, that, retval1, retval2, msg1, msg2) \
{ \
int lockcode1 = 0, lockcode2 = 0; \
WRITEUNLOCKNR(this, lockcode1, msg1); \
WRITEUNLOCKNR(that, lockcode2, msg2); \
if (lockcode2 != 0) { \
return (retval2); \
} else if (lockcode1 != 0) { \
return (retval1); \
} \
}
/* Apply a second read lock when already holding another read lock */
#define READLOCK2(this, retval, msg, that) \
if (this != 0) { \
int lockcode1, lockcode2; \
READLOCKNR(this, lockcode2, msg); \
if (lockcode2 != 0) { \
READUNLOCKNR(that, lockcode1, msg); \
return (retval); \
} \
}
/* Release two read locks */
#define READUNLOCK2(this, that, retval1, retval2, msg1, msg2) \
{ \
int lockcode1 = 0, lockcode2 = 0; \
READUNLOCKNR(this, lockcode1, msg1); \
READUNLOCKNR(that, lockcode2, msg2); \
if (lockcode2 != 0) { \
return (retval2); \
} else if (lockcode1 != 0) { \
return (retval1); \
} \
}
#define ASSERTWRITELOCKHELD(lvar, retval, msg) \
{ \
int lc; \
if ((lc = __nisdb_assert_wheld(&lvar ## _rwlock)) != 0) { \
__nisdb_get_tsd()->fatalcode = lc; \
__nisdb_get_tsd()->fatalmsg = msg; \
return (retval); \
} \
}
#define WARNING(x) { syslog(LOG_ERR, "WARNING: %s", (x)); }
#define WARNING_M(x) { syslog(LOG_ERR, "WARNING: %s: %m", (x)); }
enum db_status {DB_SUCCESS, DB_NOTFOUND, DB_NOTUNIQUE,
DB_BADTABLE, DB_BADQUERY, DB_BADOBJECT,
DB_MEMORY_LIMIT, DB_STORAGE_LIMIT, DB_INTERNAL_ERROR,
DB_BADDICTIONARY, DB_SYNC_FAILED, DB_LOCK_ERROR};
typedef enum db_status db_status;
enum db_action {DB_LOOKUP, DB_REMOVE, DB_ADD, DB_FIRST, DB_NEXT, DB_ALL,
DB_RESET_NEXT, DB_ADD_NOLOG,
DB_ADD_NOSYNC, DB_REMOVE_NOSYNC };
typedef enum db_action db_action;
#endif /* _DB_HEADERS_H */
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