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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1998-2004
* Sleepycat Software. All rights reserved.
*
* $Id: debug.h,v 11.44 2004/09/24 00:43:18 bostic Exp $
*/
#ifndef _DB_DEBUG_H_
#define _DB_DEBUG_H_
#if defined(__cplusplus)
extern "C" {
#endif
/*
* Turn on additional error checking in gcc 3.X.
*/
#if !defined(__GNUC__) || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
#define __attribute__(s)
#endif
/*
* When running with #DIAGNOSTIC defined, we smash memory and do memory
* guarding with a special byte value.
*/
#define CLEAR_BYTE 0xdb
#define GUARD_BYTE 0xdc
/*
* DB assertions.
*
* Use __STDC__ rather than STDC_HEADERS, the #e construct is ANSI C specific.
*/
#if defined(__STDC__) && defined(DIAGNOSTIC)
#define DB_ASSERT(e) ((e) ? (void)0 : __db_assert(#e, __FILE__, __LINE__))
#else
#define DB_ASSERT(e)
#endif
/*
* "Shut that bloody compiler up!"
*
* Unused, or not-used-yet variable. We need to write and then read the
* variable, some compilers are too bloody clever by half.
*/
#define COMPQUIET(n, v) \
(n) = (v); \
(n) = (n)
/*
* Purify and other run-time tools complain about uninitialized reads/writes
* of structure fields whose only purpose is padding, as well as when heap
* memory that was never initialized is written to disk.
*/
#ifdef UMRW
#define UMRW_SET(v) (v) = 0
#else
#define UMRW_SET(v)
#endif
/*
* Message handling. Use a macro instead of a function because va_list
* references to variadic arguments cannot be reset to the beginning of the
* variadic argument list (and then rescanned), by functions other than the
* original routine that took the variadic list of arguments.
*/
#if defined(STDC_HEADERS) || defined(__cplusplus)
#define DB_REAL_ERR(env, error, error_set, default_stream, fmt) { \
va_list ap; \
\
/* Call the application's callback function, if specified. */ \
va_start(ap, fmt); \
if ((env) != NULL && (env)->db_errcall != NULL) \
__db_errcall(env, error, error_set, fmt, ap); \
va_end(ap); \
\
/* Write to the application's file descriptor, if specified. */\
va_start(ap, fmt); \
if ((env) != NULL && (env)->db_errfile != NULL) \
__db_errfile(env, error, error_set, fmt, ap); \
va_end(ap); \
\
/* \
* If we have a default and we didn't do either of the above, \
* write to the default. \
*/ \
va_start(ap, fmt); \
if ((default_stream) && ((env) == NULL || \
((env)->db_errcall == NULL && (env)->db_errfile == NULL))) \
__db_errfile(env, error, error_set, fmt, ap); \
va_end(ap); \
}
#else
#define DB_REAL_ERR(env, error, error_set, default_stream, fmt) { \
va_list ap; \
\
/* Call the application's callback function, if specified. */ \
va_start(ap); \
if ((env) != NULL && (env)->db_errcall != NULL) \
__db_errcall(env, error, error_set, fmt, ap); \
va_end(ap); \
\
/* Write to the application's file descriptor, if specified. */\
va_start(ap); \
if ((env) != NULL && (env)->db_errfile != NULL) \
__db_errfile(env, error, error_set, fmt, ap); \
va_end(ap); \
\
/* \
* If we have a default and we didn't do either of the above, \
* write to the default. \
*/ \
va_start(ap); \
if ((default_stream) && ((env) == NULL || \
((env)->db_errcall == NULL && (env)->db_errfile == NULL))) \
__db_errfile(env, error, error_set, fmt, ap); \
va_end(ap); \
}
#endif
#if defined(STDC_HEADERS) || defined(__cplusplus)
#define DB_REAL_MSG(env, fmt) { \
va_list ap; \
\
/* Call the application's callback function, if specified. */ \
va_start(ap, fmt); \
if ((env) != NULL && (env)->db_msgcall != NULL) \
__db_msgcall(env, fmt, ap); \
va_end(ap); \
\
/* \
* If the application specified a file descriptor, or we wrote \
* to neither the application's callback routine or to its file \
* descriptor, write to stdout. \
*/ \
va_start(ap, fmt); \
if ((env) == NULL || \
(env)->db_msgfile != NULL || (env)->db_msgcall == NULL) { \
__db_msgfile(env, fmt, ap); \
} \
va_end(ap); \
}
#else
#define DB_REAL_MSG(env, fmt) { \
va_list ap; \
\
/* Call the application's callback function, if specified. */ \
va_start(ap); \
if ((env) != NULL && (env)->db_msgcall != NULL) \
__db_msgcall(env, fmt, ap); \
va_end(ap); \
\
/* \
* If the application specified a file descriptor, or we wrote \
* to neither the application's callback routine or to its file \
* descriptor, write to stdout. \
*/ \
va_start(ap); \
if ((env) == NULL || \
(env)->db_msgfile != NULL || (env)->db_msgcall == NULL) { \
__db_msgfile(env, fmt, ap); \
} \
va_end(ap); \
}
#endif
/*
* Debugging macro to log operations.
* If DEBUG_WOP is defined, log operations that modify the database.
* If DEBUG_ROP is defined, log operations that read the database.
*
* D dbp
* T txn
* O operation (string)
* K key
* A data
* F flags
*/
#define LOG_OP(C, T, O, K, A, F) { \
DB_LSN __lsn; \
DBT __op; \
if (DBC_LOGGING((C))) { \
memset(&__op, 0, sizeof(__op)); \
__op.data = O; \
__op.size = strlen(O) + 1; \
(void)__db_debug_log((C)->dbp->dbenv, T, &__lsn, 0, \
&__op, (C)->dbp->log_filename->id, K, A, F); \
} \
}
#ifdef DEBUG_ROP
#define DEBUG_LREAD(C, T, O, K, A, F) LOG_OP(C, T, O, K, A, F)
#else
#define DEBUG_LREAD(C, T, O, K, A, F)
#endif
#ifdef DEBUG_WOP
#define DEBUG_LWRITE(C, T, O, K, A, F) LOG_OP(C, T, O, K, A, F)
#else
#define DEBUG_LWRITE(C, T, O, K, A, F)
#endif
/*
* Hook for testing recovery at various places in the create/delete paths.
* Hook for testing subdb locks.
*/
#if CONFIG_TEST
#define DB_TEST_SUBLOCKS(env, flags) do { \
if ((env)->test_abort == DB_TEST_SUBDB_LOCKS) \
(flags) |= DB_LOCK_NOWAIT; \
} while (0)
#define DB_ENV_TEST_RECOVERY(env, val, ret, name) do { \
int __ret; \
PANIC_CHECK((env)); \
if ((env)->test_copy == (val)) { \
/* COPY the FILE */ \
if ((__ret = __db_testcopy((env), NULL, (name))) != 0) \
(ret) = __db_panic((env), __ret); \
} \
if ((env)->test_abort == (val)) { \
/* ABORT the TXN */ \
(env)->test_abort = 0; \
(ret) = EINVAL; \
goto db_tr_err; \
} \
} while (0)
#define DB_TEST_RECOVERY(dbp, val, ret, name) do { \
int __ret; \
PANIC_CHECK((dbp)->dbenv); \
if ((dbp)->dbenv->test_copy == (val)) { \
/* Copy the file. */ \
if (F_ISSET((dbp), \
DB_AM_OPEN_CALLED) && (dbp)->mpf != NULL) \
(void)__db_sync(dbp); \
if ((__ret = \
__db_testcopy((dbp)->dbenv, (dbp), (name))) != 0) \
(ret) = __db_panic((dbp)->dbenv, __ret); \
} \
if ((dbp)->dbenv->test_abort == (val)) { \
/* Abort the transaction. */ \
(dbp)->dbenv->test_abort = 0; \
(ret) = EINVAL; \
goto db_tr_err; \
} \
} while (0)
#define DB_TEST_RECOVERY_LABEL db_tr_err:
#define DB_TEST_CHECKPOINT(env, val) \
if ((val) != 0) \
__os_sleep((env), (u_long)(val), 0)
#else
#define DB_TEST_SUBLOCKS(env, flags)
#define DB_ENV_TEST_RECOVERY(env, val, ret, name)
#define DB_TEST_RECOVERY(dbp, val, ret, name)
#define DB_TEST_RECOVERY_LABEL
#define DB_TEST_CHECKPOINT(env, val)
#endif
#if defined(__cplusplus)
}
#endif
#endif /* !_DB_DEBUG_H_ */
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