src/backend/utils/error/assert.c

   1 /*-------------------------------------------------------------------------
   2  *
   3  * assert.c
   4  *        Assert code.
   5  *
   6  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  *
  10  * IDENTIFICATION
  11  *        $PostgreSQL$
  12  *
  13  * NOTE
  14  *        This should eventually work with elog()
  15  *
  16  *-------------------------------------------------------------------------
  17  */
  18 #include "postgres.h"
  19
  20 #include <unistd.h>
  21
  22 /*
  23  * ExceptionalCondition - Handles the failure of an Assert()
  24  *
  25  * Note: this can't actually return, but we declare it as returning int
  26  * because the TrapMacro() macro might get wonky otherwise.
  27  */
  28 int
  29 ExceptionalCondition(const char *conditionName,
  30                                          const char *errorType,
  31                                          const char *fileName,
  32                                          int lineNumber)
  33 {
  34         if (!PointerIsValid(conditionName)
  35                 || !PointerIsValid(fileName)
  36                 || !PointerIsValid(errorType))
  37                 write_stderr("TRAP: ExceptionalCondition: bad arguments\n");
  38         else
  39         {
  40                 write_stderr("TRAP: %s(\"%s\", File: \"%s\", Line: %d)\n",
  41                                          errorType, conditionName,
  42                                          fileName, lineNumber);
  43         }
  44
  45         /* Usually this shouldn't be needed, but make sure the msg went out */
  46         fflush(stderr);
  47
  48 #ifdef SLEEP_ON_ASSERT
  49
  50         /*
  51          * It would be nice to use pg_usleep() here, but only does 2000 sec or 33
  52          * minutes, which seems too short.
  53          */
  54         sleep(1000000);
  55 #endif
  56
  57         abort();
  58
  59         return 0;
  60 }