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Tags: innodb-plugin-1.0.1
Imported 1.0.1 with clean - with no changes.

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storage/innobase/ut/ut0dbg.c
 
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/*********************************************************************
 
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Debug utilities for Innobase.
 
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(c) 1994, 1995 Innobase Oy
 
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Created 1/30/1994 Heikki Tuuri
 
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**********************************************************************/
 
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#include "univ.i"
 
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#include "ut0dbg.h"
 
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#if defined(__GNUC__) && (__GNUC__ > 2)
 
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#else
 
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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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#endif
 
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#if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
 
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/* If this is set to TRUE all threads will stop into the next assertion
 
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and assert */
 
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UNIV_INTERN ibool       ut_dbg_stop_threads     = FALSE;
 
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#endif
 
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#ifdef __NETWARE__
 
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/* This is set to TRUE when on NetWare there happens an InnoDB
 
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assertion failure or other fatal error condition that requires an
 
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immediate shutdown. */
 
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UNIV_INTERN ibool panic_shutdown = FALSE;
 
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#elif !defined(UT_DBG_USE_ABORT)
 
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/* Null pointer used to generate memory trap */
 
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UNIV_INTERN ulint*      ut_dbg_null_ptr         = NULL;
 
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#endif
 
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/*****************************************************************
 
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Report a failed assertion. */
 
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UNIV_INTERN
 
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void
 
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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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{
 
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        ut_print_timestamp(stderr);
 
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        fprintf(stderr,
 
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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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        if (expr) {
 
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                fprintf(stderr,
 
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                        "InnoDB: Failing assertion: %s\n", expr);
 
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        }
 
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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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              " or crashes, even\n"
 
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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: http://dev.mysql.com/doc/refman/5.1/en/"
 
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              "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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#endif
 
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}
 
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#ifdef __NETWARE__
 
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/*****************************************************************
 
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Shut down MySQL/InnoDB after assertion failure. */
 
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UNIV_INTERN
 
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void
 
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ut_dbg_panic(void)
 
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/*==============*/
 
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{
 
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        if (!panic_shutdown) {
 
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                panic_shutdown = TRUE;
 
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                innobase_shutdown_for_mysql();
 
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        }
 
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        exit(1);
 
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}
 
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#else /* __NETWARE__ */
 
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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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UNIV_INTERN
 
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void
 
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ut_dbg_stop_thread(
 
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/*===============*/
 
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        const char*     file,
 
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        ulint           line)
 
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{
 
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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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}
 
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# endif
 
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#endif /* __NETWARE__ */
 
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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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#include <unistd.h>
 
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#ifndef timersub
 
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#define timersub(a, b, r)                                               \
 
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        do {                                                            \
 
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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_sec--;                                  \
 
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                        (r)->tv_usec += 1000000;                        \
 
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                }                                                       \
 
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        } while (0)
 
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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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UNIV_INTERN
 
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void
 
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speedo_reset(
 
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/*=========*/
 
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        speedo_t*       speedo) /* out: speedo */
 
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{
 
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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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/***********************************************************************
 
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Shows the time elapsed and usage statistics since the last reset of a
 
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speedo. */
 
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UNIV_INTERN
 
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void
 
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speedo_show(
 
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/*========*/
 
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        const speedo_t* speedo) /* in: speedo */
 
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{
 
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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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}
 
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#endif /* UNIV_COMPILE_TEST_FUNCS */