1 /* This file is part of the Linux Trace Toolkit viewer
2 * Copyright (C) 2003-2004 Michel Dagenais
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License Version 2 as
6 * published by the Free Software Foundation;
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
23 #include <lttv/hook.h>
24 #include <lttv/module.h>
25 #include <lttv/lttv.h>
26 #include <lttv/iattribute.h>
27 #include <lttv/attribute.h>
28 #include <lttv/option.h>
29 #include <lttv/traceset.h>
30 #include <ltt/trace.h>
35 /* The main program maintains a few central data structures and relies
36 on modules for the rest. These data structures may be accessed by modules
37 through an exported API */
39 static LttvIAttribute
*attributes
;
56 gboolean lttv_profile_memory
;
62 static void lttv_module_option(void *hook_data
);
64 static void lttv_module_path_option(void *hook_data
);
66 static void lttv_verbose(void *hook_data
);
68 static void lttv_debug(void *hook_data
);
70 static void lttv_fatal(void *hook_data
);
72 static void lttv_help(void *hook_data
);
74 /* This is the handler to specify when we dont need all the debugging
75 messages. It receives the message and does nothing. */
77 void ignore_and_drop_message(const gchar
*log_domain
, GLogLevelFlags log_level
,
78 const gchar
*message
, gpointer user_data
)
83 /* Since everything is done in modules, the main program only takes care
84 of the infrastructure. */
86 int main(int argc
, char **argv
)
92 *profile_memory_short_option
= "-M",
93 *profile_memory_long_option
= "--memory";
95 gboolean profile_memory
= FALSE
;
97 LttvAttributeValue value
;
102 /* Before anything else, check if memory profiling is requested */
104 for(i
= 1 ; i
< argc
; i
++) {
105 if(*(argv
[i
]) != '-') break;
106 if(strcmp(argv
[i
], profile_memory_short_option
) == 0 ||
107 strcmp(argv
[i
], profile_memory_long_option
) == 0) {
108 g_mem_set_vtable(glib_mem_profiler_table
);
109 g_message("Memory summary before main");
111 profile_memory
= TRUE
;
117 /* Initialize glib and by default ignore info and debug messages */
120 //g_type_init_with_debug_flags (G_TYPE_DEBUG_OBJECTS | G_TYPE_DEBUG_SIGNALS);
121 g_log_set_handler(NULL
, G_LOG_LEVEL_INFO
, ignore_and_drop_message
, NULL
);
122 g_log_set_handler(NULL
, G_LOG_LEVEL_DEBUG
, ignore_and_drop_message
, NULL
);
125 /* Have an attributes subtree to store hooks to be registered by modules. */
127 attributes
= LTTV_IATTRIBUTE(g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
));
129 before_options
= lttv_hooks_new();
130 after_options
= lttv_hooks_new();
131 before_main
= lttv_hooks_new();
132 after_main
= lttv_hooks_new();
135 /* Create a number of hooks lists */
137 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/options/before",
138 LTTV_POINTER
, &value
));
139 *(value
.v_pointer
) = before_options
;
140 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/options/after",
141 LTTV_POINTER
, &value
));
142 *(value
.v_pointer
) = after_options
;
143 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/main/before",
144 LTTV_POINTER
, &value
));
145 *(value
.v_pointer
) = before_main
;
146 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/main/after",
147 LTTV_POINTER
, &value
));
148 *(value
.v_pointer
) = after_main
;
151 /* Initialize the command line options processing */
153 GError
*error
= NULL
;
155 LttvModule
*module_module
= lttv_module_require("module", &error
);
156 if(error
!= NULL
) g_error("%s", error
->message
);
157 LttvModule
*module_option
= lttv_module_require("option", &error
);
158 if(error
!= NULL
) g_error("%s", error
->message
);
160 /* Initialize the module loading */
162 lttv_library_path_add(PACKAGE_PLUGIN_DIR
);
165 /* Add some built-in options */
167 lttv_option_add("module",'m', "load a module", "name of module to load",
168 LTTV_OPT_STRING
, &a_module
, lttv_module_option
, NULL
);
170 lttv_option_add("modules-path", 'L',
171 "add a directory to the module search path",
172 "directory to add to the path", LTTV_OPT_STRING
, &a_module_path
,
173 lttv_module_path_option
, NULL
);
175 lttv_option_add("help",'h', "basic help", "none",
176 LTTV_OPT_NONE
, NULL
, lttv_help
, NULL
);
179 lttv_option_add("verbose",'v', "print information messages", "none",
180 LTTV_OPT_NONE
, NULL
, lttv_verbose
, NULL
);
183 lttv_option_add("debug",'d', "print debugging messages", "none",
184 LTTV_OPT_NONE
, NULL
, lttv_debug
, NULL
);
187 lttv_option_add("fatal",'f', "make critical messages fatal",
189 LTTV_OPT_NONE
, NULL
, lttv_fatal
, NULL
);
191 lttv_profile_memory
= FALSE
;
192 lttv_option_add(profile_memory_long_option
+ 2,
193 profile_memory_short_option
[1], "print memory information", "none",
194 LTTV_OPT_NONE
, <tv_profile_memory
, NULL
, NULL
);
197 /* Process the options */
199 lttv_hooks_call(before_options
, NULL
);
200 lttv_option_parse(argc
, argv
);
201 lttv_hooks_call(after_options
, NULL
);
204 /* Memory profiling to be useful must be activated as early as possible */
206 if(profile_memory
!= lttv_profile_memory
)
207 g_error("Memory profiling options must appear before other options");
210 /* Do the main work */
212 lttv_hooks_call(before_main
, NULL
);
213 lttv_hooks_call(after_main
, NULL
);
216 /* Clean up everything */
218 lttv_module_release(module_option
);
219 lttv_module_release(module_module
);
221 lttv_hooks_destroy(before_options
);
222 lttv_hooks_destroy(after_options
);
223 lttv_hooks_destroy(before_main
);
224 lttv_hooks_destroy(after_main
);
225 g_object_unref(attributes
);
228 g_message("Memory summary after main");
235 LttvAttribute
*lttv_global_attributes()
237 return (LttvAttribute
*)attributes
;
241 void lttv_module_option(void *hook_data
)
243 GError
*error
= NULL
;
245 lttv_module_require(a_module
, &error
);
246 if(error
!= NULL
) g_error("%s", error
->message
);
250 void lttv_module_path_option(void *hook_data
)
252 lttv_library_path_add(a_module_path
);
256 void lttv_verbose(void *hook_data
)
258 g_log_set_handler(NULL
, G_LOG_LEVEL_INFO
, g_log_default_handler
, NULL
);
259 g_info("Logging set to include INFO level messages");
262 void lttv_debug(void *hook_data
)
264 g_log_set_handler(NULL
, G_LOG_LEVEL_DEBUG
, g_log_default_handler
, NULL
);
265 g_info("Logging set to include DEBUG level messages");
268 void lttv_fatal(void *hook_data
)
270 g_log_set_always_fatal(G_LOG_LEVEL_WARNING
| G_LOG_LEVEL_CRITICAL
);
271 //g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL);
272 g_info("Critical log from glib will abort execution");
275 void lttv_help(void *hook_data
)
277 printf("Linux Trace Toolkit Visualizer " VERSION
"\n");
279 lttv_option_show_help();
285 - Define formally traceset/trace in the GUI for the user and decide how
286 trace/traceset sharing goes in the application.
288 - Use appropriately the new functions in time.h
290 - remove the separate tracefiles (control/per cpu) arrays/loops in context.
292 - split processTrace into context.c and processTrace.c
294 - check spelling conventions.
296 - get all the copyright notices.
298 - remove all the warnings.
300 - get all the .h files properly doxygen commented to produce useful documents.
302 - have an intro/architecture document.
304 - write a tutorial */