Drizzled Public API Documentation

ut0dbg.cc
1 /*****************************************************************************
2 
3 Copyright (C) 1994, 2009, Innobase Oy. All Rights Reserved.
4 
5 This program is free software; you can redistribute it and/or modify it under
6 the terms of the GNU General Public License as published by the Free Software
7 Foundation; version 2 of the License.
8 
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 
13 You should have received a copy of the GNU General Public License along with
14 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
15 St, Fifth Floor, Boston, MA 02110-1301 USA
16 
17 *****************************************************************************/
18 
19 /*****************************************************************/
26 #include "univ.i"
27 #include "ut0dbg.h"
28 
29 #if defined(__GNUC__) && (__GNUC__ > 2)
30 #else
31 
32 UNIV_INTERN ulint ut_dbg_zero = 0;
33 #endif
34 
35 #if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
36 
38 UNIV_INTERN ibool ut_dbg_stop_threads = FALSE;
39 #endif
40 #ifndef UT_DBG_USE_ABORT
41 
42 UNIV_INTERN ulint* ut_dbg_null_ptr = NULL;
43 #endif
44 
45 /*************************************************************/
47 #ifdef __cplusplus
48 extern "C"
49 #endif
50 UNIV_INTERN
51 void
53 /*====================*/
54  const char* expr,
55  const char* file,
56  ulint line)
57 {
58  ut_print_timestamp(stderr);
59 #ifdef UNIV_HOTBACKUP
60  fprintf(stderr, " InnoDB: Assertion failure in file %s line %lu\n",
61  file, line);
62 #else /* UNIV_HOTBACKUP */
63  fprintf(stderr,
64  " InnoDB: Assertion failure in thread %lu"
65  " in file %s line %lu\n",
66  os_thread_pf(os_thread_get_curr_id()), file, line);
67 #endif /* UNIV_HOTBACKUP */
68  if (expr) {
69  fprintf(stderr,
70  "InnoDB: Failing assertion: %s\n", expr);
71  }
72 
73  fputs("InnoDB: We intentionally generate a memory trap.\n"
74  "InnoDB: Submit a detailed bug report"
75  " to http://bugs.mysql.com.\n"
76  "InnoDB: If you get repeated assertion failures"
77  " or crashes, even\n"
78  "InnoDB: immediately after the mysqld startup, there may be\n"
79  "InnoDB: corruption in the InnoDB tablespace. Please refer to\n"
80  "InnoDB: " REFMAN "forcing-recovery.html\n"
81  "InnoDB: about forcing recovery.\n", stderr);
82 #if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
83  ut_dbg_stop_threads = TRUE;
84 #endif
85 }
86 
87 #if defined(UNIV_SYNC_DEBUG) || !defined(UT_DBG_USE_ABORT)
88 /*************************************************************/
90 UNIV_INTERN
91 void
93 /*===============*/
94  const char* file,
95  ulint line)
96 {
97 #ifndef UNIV_HOTBACKUP
98  fprintf(stderr, "InnoDB: Thread %lu stopped in file %s line %lu\n",
99  os_thread_pf(os_thread_get_curr_id()), file, line);
100  os_thread_sleep(1000000000);
101 #endif /* !UNIV_HOTBACKUP */
102 }
103 #endif
104 
105 #ifdef UNIV_COMPILE_TEST_FUNCS
106 
107 #include <sys/types.h>
108 #include <sys/time.h>
109 #include <sys/resource.h>
110 
111 #include <unistd.h>
112 
113 #ifndef timersub
114 #define timersub(a, b, r) \
115  do { \
116  (r)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
117  (r)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
118  if ((r)->tv_usec < 0) { \
119  (r)->tv_sec--; \
120  (r)->tv_usec += 1000000; \
121  } \
122  } while (0)
123 #endif /* timersub */
124 
125 /*******************************************************************/
127 UNIV_INTERN
128 void
129 speedo_reset(
130 /*=========*/
131  speedo_t* speedo)
132 {
133  gettimeofday(&speedo->tv, NULL);
134 
135  getrusage(RUSAGE_SELF, &speedo->ru);
136 }
137 
138 /*******************************************************************/
141 UNIV_INTERN
142 void
143 speedo_show(
144 /*========*/
145  const speedo_t* speedo)
146 {
147  struct rusage ru_now;
148  struct timeval tv_now;
149  struct timeval tv_diff;
150 
151  getrusage(RUSAGE_SELF, &ru_now);
152 
153  gettimeofday(&tv_now, NULL);
154 
155 #define PRINT_TIMEVAL(prefix, tvp) \
156  fprintf(stderr, "%s% 5ld.%06ld sec\n", \
157  prefix, (tvp)->tv_sec, (tvp)->tv_usec)
158 
159  timersub(&tv_now, &speedo->tv, &tv_diff);
160  PRINT_TIMEVAL("real", &tv_diff);
161 
162  timersub(&ru_now.ru_utime, &speedo->ru.ru_utime, &tv_diff);
163  PRINT_TIMEVAL("user", &tv_diff);
164 
165  timersub(&ru_now.ru_stime, &speedo->ru.ru_stime, &tv_diff);
166  PRINT_TIMEVAL("sys ", &tv_diff);
167 }
168 
169 #endif /* UNIV_COMPILE_TEST_FUNCS */