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/* Copyright (c) 2000, 2010, Oracle and/or its affiliates.
Copyright (C) 2000, 2019, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#ifndef _my_dbug_h
#define _my_dbug_h
#ifndef __WIN__
#include <signal.h>
#endif /* not __WIN__ */
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(DBUG_OFF) && !defined(_lint)
struct _db_stack_frame_ {
const char *func; /* function name of the previous stack frame */
const char *file; /* filename of the function of previous frame */
uint level; /* this nesting level, highest bit enables tracing */
int line; /* line of DBUG_RETURN */
struct _db_stack_frame_ *prev; /* pointer to the previous frame */
};
struct _db_code_state_;
extern my_bool _dbug_on_;
extern my_bool _db_keyword_(struct _db_code_state_ *, const char *, int);
extern int _db_explain_(struct _db_code_state_ *cs, char *buf, size_t len);
extern int _db_explain_init_(char *buf, size_t len);
extern int _db_is_pushed_(void);
extern void _db_setjmp_(void);
extern void _db_longjmp_(void);
extern void _db_process_(const char *name);
extern void _db_push_(const char *control);
extern void _db_pop_(void);
extern void _db_set_(const char *control);
extern void _db_set_init_(const char *control);
extern void _db_enter_(const char *_func_, const char *_file_, uint _line_,
struct _db_stack_frame_ *_stack_frame_);
extern void _db_return_(struct _db_stack_frame_ *_stack_frame_);
extern int _db_pargs_(uint _line_,const char *keyword);
extern void _db_doprnt_(const char *format,...)
ATTRIBUTE_FORMAT(printf, 1, 2);
extern void _db_dump_(uint _line_,const char *keyword,
const unsigned char *memory, size_t length);
extern void _db_end_(void);
extern void _db_lock_file_(void);
extern void _db_unlock_file_(void);
ATTRIBUTE_COLD
extern my_bool _db_my_assert(const char *file, int line, const char *msg);
extern FILE *_db_fp_(void);
extern void _db_flush_(void);
extern void dbug_swap_code_state(void **code_state_store);
extern void dbug_free_code_state(void **code_state_store);
extern const char* _db_get_func_(void);
extern int (*dbug_sanity)(void);
#ifdef DBUG_TRACE
#define DBUG_LEAVE do { \
_db_stack_frame_.line= __LINE__; \
_db_return_ (&_db_stack_frame_); \
_db_stack_frame_.line= 0; \
} while(0)
#ifdef HAVE_ATTRIBUTE_CLEANUP
#define DBUG_ENTER(a) struct _db_stack_frame_ _db_stack_frame_ __attribute__((cleanup(_db_return_))); \
_db_enter_ (a,__FILE__,__LINE__,&_db_stack_frame_)
#define DBUG_RETURN(a1) do { _db_stack_frame_.line=__LINE__; return(a1);} while(0)
#define DBUG_VOID_RETURN do { _db_stack_frame_.line=__LINE__; return;} while(0)
#else
#define DBUG_ENTER(a) struct _db_stack_frame_ _db_stack_frame_; \
_db_enter_ (a,__FILE__,__LINE__,&_db_stack_frame_)
#define DBUG_RETURN(a1) do {DBUG_LEAVE; return(a1);} while(0)
#define DBUG_VOID_RETURN do {DBUG_LEAVE; return;} while(0)
#endif
#else
#define DBUG_LEAVE
#define DBUG_ENTER(a)
#define DBUG_RETURN(a1) return(a1)
#define DBUG_VOID_RETURN return
#endif
#define DBUG_EXECUTE(keyword,a1) \
do {if (_db_keyword_(0, (keyword), 0)) { a1 }} while(0)
#define DBUG_EXECUTE_IF(keyword,a1) \
do {if (_db_keyword_(0, (keyword), 1)) { a1 }} while(0)
#define DBUG_EVALUATE(keyword,a1,a2) \
(_db_keyword_(0,(keyword), 0) ? (a1) : (a2))
#define DBUG_EVALUATE_IF(keyword,a1,a2) \
(_db_keyword_(0,(keyword), 1) ? (a1) : (a2))
#define DBUG_PRINT(keyword,arglist) \
do if (_db_pargs_(__LINE__,keyword)) _db_doprnt_ arglist; while(0)
#define DBUG_PUSH(a1) _db_push_ (a1)
#define DBUG_POP() _db_pop_ ()
#define DBUG_SET(a1) _db_set_ (a1)
#define DBUG_SET_INITIAL(a1) _db_set_init_ (a1)
#define DBUG_PROCESS(a1) _db_process_(a1)
#define DBUG_FILE _db_fp_()
#define DBUG_DUMP(keyword,a1,a2) _db_dump_(__LINE__,keyword,a1,a2)
#define DBUG_END() _db_end_ ()
#define DBUG_LOCK_FILE _db_lock_file_()
#define DBUG_UNLOCK_FILE _db_unlock_file_()
#define DBUG_ASSERT(A) do { \
if (unlikely(!(A)) && _db_my_assert(__FILE__, __LINE__, #A)) assert(A); \
} while (0)
#define DBUG_SLOW_ASSERT(A) DBUG_ASSERT(A)
#define DBUG_ASSERT_EXISTS
#define DBUG_EXPLAIN(buf,len) _db_explain_(0, (buf),(len))
#define DBUG_EXPLAIN_INITIAL(buf,len) _db_explain_init_((buf),(len))
#define DEBUGGER_OFF do { _dbug_on_= 0; } while(0)
#define DEBUGGER_ON do { _dbug_on_= 1; } while(0)
#define IF_DBUG(A,B) A
#define IF_DBUG_ASSERT(A,B) A
#define DBUG_SWAP_CODE_STATE(arg) dbug_swap_code_state(arg)
#define DBUG_FREE_CODE_STATE(arg) dbug_free_code_state(arg)
#undef DBUG_ASSERT_AS_PRINTF
#ifndef __WIN__
#define DBUG_ABORT() (_db_flush_(), abort())
#else
/*
Avoid popup with abort/retry/ignore buttons. When BUG#31745 is fixed we can
call abort() instead of _exit(3) (now it would cause a "test signal" popup).
*/
#include <crtdbg.h>
#define DBUG_ABORT() (_db_flush_(),\
(void)_CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE),\
(void)_CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR),\
_exit(3))
#endif
/*
Make the program fail, without creating a core file.
abort() will send SIGABRT which (most likely) generates core.
Use SIGKILL instead, which cannot be caught.
We also pause the current thread, until the signal is actually delivered.
An alternative would be to use _exit(EXIT_FAILURE),
but then valgrind would report lots of memory leaks.
*/
#ifdef __WIN__
#define DBUG_SUICIDE() DBUG_ABORT()
#else
extern void _db_suicide_(void);
#define DBUG_SUICIDE() (_db_flush_(), _db_suicide_())
#endif /* __WIN__ */
#else /* No debugger */
#define DBUG_ENTER(a1)
#define DBUG_VIOLATION_HELPER_LEAVE do { } while(0)
#define DBUG_LEAVE
#define DBUG_RETURN(a1) do { return(a1); } while(0)
#define DBUG_VOID_RETURN do { return; } while(0)
#define DBUG_EXECUTE(keyword,a1) do { } while(0)
#define DBUG_EXECUTE_IF(keyword,a1) do { } while(0)
#define DBUG_EVALUATE(keyword,a1,a2) (a2)
#define DBUG_EVALUATE_IF(keyword,a1,a2) (a2)
#define DBUG_PRINT(keyword,arglist) do { } while(0)
#define DBUG_PUSH(a1) do { } while(0)
#define DBUG_SET(a1) do { } while(0)
#define DBUG_SET_INITIAL(a1) do { } while(0)
#define DBUG_POP() do { } while(0)
#define DBUG_PROCESS(a1) do { } while(0)
#define DBUG_DUMP(keyword,a1,a2) do { } while(0)
#define DBUG_END() do { } while(0)
#define DBUG_SLOW_ASSERT(A) do { } while(0)
#define DBUG_LOCK_FILE do { } while(0)
#define DBUG_FILE (stderr)
#define DBUG_UNLOCK_FILE do { } while(0)
#define DBUG_EXPLAIN(buf,len)
#define DBUG_EXPLAIN_INITIAL(buf,len)
#define DEBUGGER_OFF do { } while(0)
#define DEBUGGER_ON do { } while(0)
#define IF_DBUG(A,B) B
#define DBUG_SWAP_CODE_STATE(arg) do { } while(0)
#define DBUG_FREE_CODE_STATE(arg) do { } while(0)
#define DBUG_ABORT() do { } while(0)
#define DBUG_CRASH_ENTER(func)
#define DBUG_CRASH_RETURN(val) do { return(val); } while(0)
#define DBUG_CRASH_VOID_RETURN do { return; } while(0)
#define DBUG_SUICIDE() do { } while(0)
#ifdef DBUG_ASSERT_AS_PRINTF
extern void (*my_dbug_assert_failed)(const char *assert_expr, const char* file, unsigned long line);
#define DBUG_ASSERT(assert_expr) do { if (!(assert_expr)) { my_dbug_assert_failed(#assert_expr, __FILE__, __LINE__); }} while (0)
#define DBUG_ASSERT_EXISTS
#define IF_DBUG_ASSERT(A,B) A
#else
#define DBUG_ASSERT(A) do { } while(0)
#define IF_DBUG_ASSERT(A,B) B
#endif /* DBUG_ASSERT_AS_PRINTF */
#endif /* !defined(DBUG_OFF) && !defined(_lint) */
#ifdef EXTRA_DEBUG
/**
Sync points allow us to force the server to reach a certain line of code
and block there until the client tells the server it is ok to go on.
The client tells the server to block with SELECT GET_LOCK()
and unblocks it with SELECT RELEASE_LOCK(). Used for debugging difficult
concurrency problems
*/
#define DBUG_SYNC_POINT(lock_name,lock_timeout) \
debug_sync_point(lock_name,lock_timeout)
void debug_sync_point(const char* lock_name, uint lock_timeout);
#else
#define DBUG_SYNC_POINT(lock_name,lock_timeout)
#endif /* EXTRA_DEBUG */
#ifdef __cplusplus
}
/*
DBUG_LOG() was initially intended for InnoDB. To be able to use it elsewhere
one should #include <sstream>. We intentionally avoid including it here to save
compilation time.
*/
# ifdef DBUG_OFF
# define DBUG_LOG(keyword, v) do {} while (0)
# else
# define DBUG_LOG(keyword, v) do { \
if (_db_pargs_(__LINE__, keyword)) { \
std::ostringstream _db_s; _db_s << v; \
_db_doprnt_("%s", _db_s.str().c_str()); \
}} while (0)
# endif
#endif
#endif /* _my_dbug_h */
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