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/*****************************************************************************
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Copyright (c) 1994, 2009, Innobase Oy. All Rights Reserved.
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
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St, Fifth Floor, Boston, MA 02110-1301 USA
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*****************************************************************************/
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/*****************************************************************//**
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Debug utilities for Innobase.
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Created 1/30/1994 Heikki Tuuri
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**********************************************************************/
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#if defined(__GNUC__) && (__GNUC__ > 2)
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/** This is used to eliminate compiler warnings */
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UNIV_INTERN ulint ut_dbg_zero = 0;
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#if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
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/** If this is set to TRUE by ut_dbg_assertion_failed(), all threads
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will stop at the next ut_a() or ut_ad(). */
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UNIV_INTERN ibool ut_dbg_stop_threads = FALSE;
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#ifndef UT_DBG_USE_ABORT
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/** A null pointer that will be dereferenced to trigger a memory trap */
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UNIV_INTERN ulint* ut_dbg_null_ptr = NULL;
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/*************************************************************//**
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Report a failed assertion. */
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ut_dbg_assertion_failed(
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/*====================*/
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const char* expr, /*!< in: the failed assertion (optional) */
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const char* file, /*!< in: source file containing the assertion */
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ulint line) /*!< in: line number of the assertion */
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ut_print_timestamp(stderr);
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fprintf(stderr, " InnoDB: Assertion failure in file %s line %lu\n",
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#else /* UNIV_HOTBACKUP */
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" InnoDB: Assertion failure in thread %lu"
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" in file %s line %lu\n",
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os_thread_pf(os_thread_get_curr_id()), file, line);
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#endif /* UNIV_HOTBACKUP */
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"InnoDB: Failing assertion: %s\n", expr);
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fputs("InnoDB: We intentionally generate a memory trap.\n"
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"InnoDB: Submit a detailed bug report"
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" to http://bugs.mysql.com.\n"
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"InnoDB: If you get repeated assertion failures"
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"InnoDB: immediately after the mysqld startup, there may be\n"
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"InnoDB: corruption in the InnoDB tablespace. Please refer to\n"
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"InnoDB: " REFMAN "forcing-recovery.html\n"
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"InnoDB: about forcing recovery.\n", stderr);
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#if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
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ut_dbg_stop_threads = TRUE;
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#if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
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/*************************************************************//**
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Stop a thread after assertion failure. */
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#ifndef UNIV_HOTBACKUP
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fprintf(stderr, "InnoDB: Thread %lu stopped in file %s line %lu\n",
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os_thread_pf(os_thread_get_curr_id()), file, line);
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os_thread_sleep(1000000000);
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#endif /* !UNIV_HOTBACKUP */
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#ifdef UNIV_COMPILE_TEST_FUNCS
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#define timersub(a, b, r) \
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(r)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
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(r)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
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if ((r)->tv_usec < 0) { \
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(r)->tv_usec += 1000000; \
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#endif /* timersub */
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/*******************************************************************//**
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Resets a speedo (records the current time in it). */
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speedo_t* speedo) /*!< out: speedo */
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gettimeofday(&speedo->tv, NULL);
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getrusage(RUSAGE_SELF, &speedo->ru);
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/*******************************************************************//**
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Shows the time elapsed and usage statistics since the last reset of a
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const speedo_t* speedo) /*!< in: speedo */
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struct rusage ru_now;
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struct timeval tv_now;
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struct timeval tv_diff;
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getrusage(RUSAGE_SELF, &ru_now);
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gettimeofday(&tv_now, NULL);
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#define PRINT_TIMEVAL(prefix, tvp) \
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fprintf(stderr, "%s% 5ld.%06ld sec\n", \
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prefix, (tvp)->tv_sec, (tvp)->tv_usec)
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timersub(&tv_now, &speedo->tv, &tv_diff);
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PRINT_TIMEVAL("real", &tv_diff);
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timersub(&ru_now.ru_utime, &speedo->ru.ru_utime, &tv_diff);
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PRINT_TIMEVAL("user", &tv_diff);
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timersub(&ru_now.ru_stime, &speedo->ru.ru_stime, &tv_diff);
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PRINT_TIMEVAL("sys ", &tv_diff);
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#endif /* UNIV_COMPILE_TEST_FUNCS */