2019-07-28 10:31:56 +08:00
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/* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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2014-11-19 00:25:21 +08:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef MY_DBUG_INCLUDED
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#define MY_DBUG_INCLUDED
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#ifndef __WIN__
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <signal.h>
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#endif /* not __WIN__ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !defined(DBUG_OFF) && !defined(_lint)
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struct _db_stack_frame_ {
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const char *func; /* function name of the previous stack frame */
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const char *file; /* filename of the function of previous frame */
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uint level; /* this nesting level, highest bit enables tracing */
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struct _db_stack_frame_ *prev; /* pointer to the previous frame */
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};
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struct _db_code_state_;
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extern my_bool _dbug_on_;
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extern my_bool _db_keyword_(struct _db_code_state_ *, const char *, int);
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extern int _db_explain_(struct _db_code_state_ *cs, char *buf, size_t len);
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extern int _db_explain_init_(char *buf, size_t len);
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extern int _db_is_pushed_(void);
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extern void _db_setjmp_(void);
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extern void _db_longjmp_(void);
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extern void _db_process_(const char *name);
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extern void _db_push_(const char *control);
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extern void _db_pop_(void);
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extern void _db_set_(const char *control);
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extern void _db_set_init_(const char *control);
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extern void _db_enter_(const char *_func_, const char *_file_, uint _line_,
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struct _db_stack_frame_ *_stack_frame_);
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extern void _db_return_(uint _line_, struct _db_stack_frame_ *_stack_frame_);
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extern void _db_pargs_(uint _line_,const char *keyword);
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extern void _db_doprnt_(const char *format,...)
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ATTRIBUTE_FORMAT(printf, 1, 2);
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extern void _db_dump_(uint _line_,const char *keyword,
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const unsigned char *memory, size_t length);
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extern void _db_end_(void);
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extern void _db_lock_file_(void);
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extern void _db_unlock_file_(void);
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extern FILE *_db_fp_(void);
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extern void _db_flush_();
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extern const char* _db_get_func_(void);
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#define DBUG_ENTER(a) struct _db_stack_frame_ _db_stack_frame_; \
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_db_enter_ (a,__FILE__,__LINE__,&_db_stack_frame_)
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#define DBUG_LEAVE _db_return_ (__LINE__, &_db_stack_frame_)
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#define DBUG_RETURN(a1) do {DBUG_LEAVE; return(a1);} while(0)
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#define DBUG_VOID_RETURN do {DBUG_LEAVE; return;} while(0)
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#define DBUG_EXECUTE(keyword,a1) \
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do {if (_db_keyword_(0, (keyword), 0)) { a1 }} while(0)
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#define DBUG_EXECUTE_IF(keyword,a1) \
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do {if (_db_keyword_(0, (keyword), 1)) { a1 }} while(0)
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#define DBUG_EVALUATE(keyword,a1,a2) \
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(_db_keyword_(0,(keyword), 0) ? (a1) : (a2))
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#define DBUG_EVALUATE_IF(keyword,a1,a2) \
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(_db_keyword_(0,(keyword), 1) ? (a1) : (a2))
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#define DBUG_PRINT(keyword,arglist) \
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do {_db_pargs_(__LINE__,keyword); _db_doprnt_ arglist;} while(0)
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#define DBUG_PUSH(a1) _db_push_ (a1)
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#define DBUG_POP() _db_pop_ ()
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#define DBUG_SET(a1) _db_set_ (a1)
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#define DBUG_SET_INITIAL(a1) _db_set_init_ (a1)
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#define DBUG_PROCESS(a1) _db_process_(a1)
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#define DBUG_FILE _db_fp_()
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#define DBUG_SETJMP(a1) (_db_setjmp_ (), setjmp (a1))
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#define DBUG_LONGJMP(a1,a2) (_db_longjmp_ (), longjmp (a1, a2))
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#define DBUG_DUMP(keyword,a1,a2) _db_dump_(__LINE__,keyword,a1,a2)
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#define DBUG_END() _db_end_ ()
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#define DBUG_LOCK_FILE _db_lock_file_()
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#define DBUG_UNLOCK_FILE _db_unlock_file_()
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#define DBUG_ASSERT(A) assert(A)
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#define DBUG_EXPLAIN(buf,len) _db_explain_(0, (buf),(len))
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#define DBUG_EXPLAIN_INITIAL(buf,len) _db_explain_init_((buf),(len))
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#define DEBUGGER_OFF do { _dbug_on_= 0; } while(0)
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#define DEBUGGER_ON do { _dbug_on_= 1; } while(0)
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#ifndef __WIN__
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#define DBUG_ABORT() (_db_flush_(), abort())
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#else
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/*
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Avoid popup with abort/retry/ignore buttons. When BUG#31745 is fixed we can
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call abort() instead of _exit(3) (now it would cause a "test signal" popup).
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*/
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#include <crtdbg.h>
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#define DBUG_ABORT() (_db_flush_(),\
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(void)_CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE),\
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(void)_CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR),\
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_exit(3))
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#endif
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#define DBUG_CHECK_CRASH(func, op) \
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do { char _dbuf_[255]; strxnmov(_dbuf_, sizeof(_dbuf_)-1, (func), (op)); \
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DBUG_EXECUTE_IF(_dbuf_, DBUG_ABORT()); } while(0)
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#define DBUG_CRASH_ENTER(func) \
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DBUG_ENTER(func); DBUG_CHECK_CRASH(func, "_crash_enter")
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#define DBUG_CRASH_RETURN(val) \
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DBUG_CHECK_CRASH(_db_get_func_(), "_crash_return")
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#define DBUG_CRASH_VOID_RETURN \
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DBUG_CHECK_CRASH (_db_get_func_(), "_crash_return")
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/*
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Make the program fail, without creating a core file.
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abort() will send SIGABRT which (most likely) generates core.
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Use SIGKILL instead, which cannot be caught.
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We also pause the current thread, until the signal is actually delivered.
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An alternative would be to use _exit(EXIT_FAILURE),
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but then valgrind would report lots of memory leaks.
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*/
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#ifdef __WIN__
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#define DBUG_SUICIDE() DBUG_ABORT()
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#else
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#define DBUG_SUICIDE() (_db_flush_(), kill(getpid(), SIGKILL), pause())
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#endif
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#else /* No debugger */
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#define DBUG_ENTER(a1)
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#define DBUG_LEAVE
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#define DBUG_RETURN(a1) do { return(a1); } while(0)
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#define DBUG_VOID_RETURN do { return; } while(0)
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#define DBUG_EXECUTE(keyword,a1) do { } while(0)
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#define DBUG_EXECUTE_IF(keyword,a1) do { } while(0)
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#define DBUG_EVALUATE(keyword,a1,a2) (a2)
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#define DBUG_EVALUATE_IF(keyword,a1,a2) (a2)
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#define DBUG_PRINT(keyword,arglist) do { } while(0)
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#define DBUG_PUSH(a1) do { } while(0)
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#define DBUG_SET(a1) do { } while(0)
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#define DBUG_SET_INITIAL(a1) do { } while(0)
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#define DBUG_POP() do { } while(0)
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#define DBUG_PROCESS(a1) do { } while(0)
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#define DBUG_SETJMP(a1) setjmp(a1)
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#define DBUG_LONGJMP(a1) longjmp(a1)
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#define DBUG_DUMP(keyword,a1,a2) do { } while(0)
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#define DBUG_END() do { } while(0)
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#define DBUG_ASSERT(A) do { } while(0)
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#define DBUG_LOCK_FILE do { } while(0)
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#define DBUG_FILE (stderr)
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#define DBUG_UNLOCK_FILE do { } while(0)
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#define DBUG_EXPLAIN(buf,len)
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#define DBUG_EXPLAIN_INITIAL(buf,len)
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#define DEBUGGER_OFF do { } while(0)
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#define DEBUGGER_ON do { } while(0)
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#define DBUG_ABORT() do { } while(0)
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#define DBUG_CRASH_ENTER(func)
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#define DBUG_CRASH_RETURN(val) do { return(val); } while(0)
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#define DBUG_CRASH_VOID_RETURN do { return; } while(0)
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#define DBUG_SUICIDE() do { } while(0)
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#endif
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#ifdef EXTRA_DEBUG
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/**
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Sync points allow us to force the server to reach a certain line of code
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and block there until the client tells the server it is ok to go on.
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The client tells the server to block with SELECT GET_LOCK()
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and unblocks it with SELECT RELEASE_LOCK(). Used for debugging difficult
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concurrency problems
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*/
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#define DBUG_SYNC_POINT(lock_name,lock_timeout) \
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debug_sync_point(lock_name,lock_timeout)
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void debug_sync_point(const char* lock_name, uint lock_timeout);
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#else
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#define DBUG_SYNC_POINT(lock_name,lock_timeout)
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#endif /* EXTRA_DEBUG */
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#ifdef __cplusplus
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}
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#endif
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#endif /* MY_DBUG_INCLUDED */
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