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Debug commands will usually mark the fate of the process. We'd rather have them counted and visible in a core or in stats output than trying to guess how a flag combination could happen. The counter is only incremented when the command is about to be issued however, so that failed attempts are ignored.
93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
/*
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include/common/debug.h
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This files contains some macros to help debugging.
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Copyright (C) 2000-2006 Willy Tarreau - w@1wt.eu
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation, version 2.1
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exclusively.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _COMMON_DEBUG_H
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#define _COMMON_DEBUG_H
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#include <common/config.h>
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#include <common/memory.h>
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#ifdef DEBUG_FULL
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#define DPRINTF(x...) fprintf(x)
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#else
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#define DPRINTF(x...)
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#endif
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#ifdef DEBUG_FSM
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#define FSM_PRINTF(x...) fprintf(x)
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#else
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#define FSM_PRINTF(x...)
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#endif
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/* This abort is more efficient than abort() because it does not mangle the
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* stack and stops at the exact location we need.
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*/
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#define ABORT_NOW() (*(volatile int*)1=0)
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/* BUG_ON: complains if <cond> is true when DEBUG_STRICT or DEBUG_STRICT_NOCRASH
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* are set, does nothing otherwise. With DEBUG_STRICT in addition it immediately
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* crashes using ABORT_NOW() above.
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*/
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#if defined(DEBUG_STRICT) || defined(DEBUG_STRICT_NOCRASH)
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#if defined(DEBUG_STRICT)
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#define CRASH_NOW() ABORT_NOW()
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#else
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#define CRASH_NOW()
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#endif
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#define BUG_ON(cond) _BUG_ON(cond, __FILE__, __LINE__)
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#define _BUG_ON(cond, file, line) __BUG_ON(cond, file, line)
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#define __BUG_ON(cond, file, line) \
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do { \
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if (unlikely(cond)) { \
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const char msg[] = "\nFATAL: bug condition \"" #cond "\" matched at " file ":" #line "\n"; \
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(void)write(2, msg, strlen(msg)); \
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CRASH_NOW(); \
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} \
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} while (0)
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#else
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#undef CRASH_NOW
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#define BUG_ON(cond)
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#endif
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struct task;
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struct buffer;
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extern volatile unsigned long threads_to_dump;
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extern unsigned int debug_commands_issued;
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void ha_task_dump(struct buffer *buf, const struct task *task, const char *pfx);
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void ha_thread_dump(struct buffer *buf, int thr, int calling_tid);
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void ha_thread_dump_all_to_trash();
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void ha_panic();
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/* This one is useful to automatically apply poisonning on an area returned
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* by malloc(). Only "p_" is required to make it work, and to define a poison
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* byte using -dM.
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*/
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static inline void *p_malloc(size_t size)
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{
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void *ret = malloc(size);
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if (mem_poison_byte >= 0 && ret)
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memset(ret, mem_poison_byte, size);
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return ret;
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}
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#endif /* _COMMON_DEBUG_H */
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