1 /* Copyright (C) 2007 MySQL AB & Sanja Belkin
2
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; version 2 of the License.
6
7 This program is distributed in the hope that it will be useful,
8 but WITHOUT ANY WARRANTY; without even the implied warranty of
9 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 GNU General Public License for more details.
11
12 You should have received a copy of the GNU General Public License
13 along with this program; if not, write to the Free Software
14 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
15
16 #include "maria_def.h"
17 #include <my_getopt.h>
18 extern void translog_example_table_init();
19 static const char *load_default_groups[]= { "aria_dump_log",0 };
20 static void get_options(int *argc,char * * *argv);
21 #ifndef DBUG_OFF
22 #if defined(__WIN__)
23 const char *default_dbug_option= "d:t:i:O,\\aria_dump_log.trace";
24 #else
25 const char *default_dbug_option= "d:t:i:o,/tmp/aria_dump_log.trace";
26 #endif
27 #endif
28 static ulonglong opt_offset;
29 static ulong opt_pages;
30 static const char *opt_file= NULL;
31 static File handler= -1;
32 static my_bool opt_unit= 0;
33 static struct my_option my_long_options[] =
34 {
35 #ifdef IMPLTMENTED
36 {"body", 'b',
37 "Print chunk body dump",
38 (uchar **) &opt_body, (uchar **) &opt_body, 0,
39 GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
40 #endif
41 #ifndef DBUG_OFF
42 {"debug", '#', "Output debug log. Often the argument is 'd:t:o,filename'.",
43 0, 0, 0, GET_STR, OPT_ARG, 0, 0, 0, 0, 0, 0},
44 #endif
45 {"file", 'f', "Path to file which will be read",
46 (uchar**) &opt_file, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
47 {"help", '?', "Display this help and exit.",
48 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
49 { "offset", 'o', "Start reading log from this offset",
50 (uchar**) &opt_offset, (uchar**) &opt_offset,
51 0, GET_ULL, REQUIRED_ARG, 0, 0, ~(longlong) 0, 0, 0, 0 },
52 { "pages", 'n', "Number of pages to read",
53 (uchar**) &opt_pages, (uchar**) &opt_pages, 0,
54 GET_ULONG, REQUIRED_ARG, (long) ~(ulong) 0,
55 (long) 1, (long) ~(ulong) 0, (long) 0,
56 (long) 1, 0},
57 {"unit-test", 'U',
58 "Use unit test record table (for logs created by unittests",
59 (uchar **) &opt_unit, (uchar **) &opt_unit, 0,
60 GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
61 {"version", 'V', "Print version and exit.",
62 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
63 { 0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
64 };
65
66
print_version(void)67 static void print_version(void)
68 {
69 printf("%s Ver 1.0 for %s on %s\n",
70 my_progname_short, SYSTEM_TYPE, MACHINE_TYPE);
71 }
72
73
usage(void)74 static void usage(void)
75 {
76 print_version();
77 puts("Copyright (C) 2008 MySQL AB");
78 puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,");
79 puts("and you are welcome to modify and redistribute it under the GPL license\n");
80
81 puts("Dump content of aria log pages.");
82 printf("\nUsage: %s -f file OPTIONS\n", my_progname_short);
83 my_print_help(my_long_options);
84 print_defaults("my", load_default_groups);
85 my_print_variables(my_long_options);
86 }
87
88
89 static my_bool
get_one_option(const struct my_option * opt,const char * argument,const char * filename)90 get_one_option(const struct my_option *opt,
91 const char *argument __attribute__((unused)),
92 const char *filename __attribute__((unused)))
93 {
94 switch (opt->id) {
95 case '?':
96 usage();
97 exit(0);
98 case 'V':
99 print_version();
100 exit(0);
101 #ifndef DBUG_OFF
102 case '#':
103 DBUG_SET_INITIAL(argument ? argument : default_dbug_option);
104 break;
105 #endif
106 }
107 return 0;
108 }
109
110
get_options(int * argc,char *** argv)111 static void get_options(int *argc,char ***argv)
112 {
113 int ho_error;
114
115 if ((ho_error=handle_options(argc, argv, my_long_options, get_one_option)))
116 exit(ho_error);
117
118 if (opt_file == NULL)
119 {
120 usage();
121 exit(1);
122 }
123 }
124
125
126 /**
127 @brief maria_dump_log main function.
128 */
129
main(int argc,char ** argv)130 int main(int argc, char **argv)
131 {
132 char **default_argv;
133 uchar buffer[TRANSLOG_PAGE_SIZE];
134 MY_INIT(argv[0]);
135
136 load_defaults_or_exit("my", load_default_groups, &argc, &argv);
137 default_argv= argv;
138 get_options(&argc, &argv);
139
140 if (opt_unit)
141 translog_example_table_init();
142 else
143 translog_table_init();
144 translog_fill_overhead_table();
145
146 maria_data_root= ".";
147
148 if ((handler= my_open(opt_file, O_RDONLY, MYF(MY_WME))) < 0)
149 {
150 fprintf(stderr, "Can't open file: '%s' errno: %d\n",
151 opt_file, my_errno);
152 goto err;
153 }
154 if (my_seek(handler, opt_offset, SEEK_SET, MYF(MY_WME)) !=
155 opt_offset)
156 {
157 fprintf(stderr, "Can't set position %lld file: '%s' errno: %d\n",
158 opt_offset, opt_file, my_errno);
159 goto err;
160 }
161 for (;
162 opt_pages;
163 opt_offset+= TRANSLOG_PAGE_SIZE, opt_pages--)
164 {
165 if (my_pread(handler, buffer, TRANSLOG_PAGE_SIZE, opt_offset,
166 MYF(MY_NABP)))
167 {
168 if (my_errno == HA_ERR_FILE_TOO_SHORT)
169 goto end;
170 fprintf(stderr, "Can't read page at position %lld file: '%s' "
171 "errno: %d\n", opt_offset, opt_file, my_errno);
172 goto err;
173 }
174 printf("Page by offset %llu (0x%llx)\n", opt_offset, opt_offset);
175 dump_page(buffer, handler);
176 }
177
178 end:
179 my_close(handler, MYF(0));
180 free_defaults(default_argv);
181 exit(0);
182 return 0; /* No compiler warning */
183
184 err:
185 my_close(handler, MYF(0));
186 fprintf(stderr, "%s: FAILED\n", my_progname_short);
187 free_defaults(default_argv);
188 exit(1);
189 }
190
191 #include "ma_check_standalone.h"
192
193