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,
20 #include <lttv/hook.h>
21 #include <lttv/module.h>
22 #include <lttv/lttv.h>
23 #include <lttv/iattribute.h>
24 #include <lttv/attribute.h>
25 #include <lttv/option.h>
26 #include <lttv/traceset.h>
27 #include <ltt/trace.h>
32 /* The main program maintains a few central data structures and relies
33 on modules for the rest. These data structures may be accessed by modules
34 through an exported API */
36 static LttvIAttribute
*attributes
;
53 gboolean lttv_profile_memory
;
59 static void lttv_module_option(void *hook_data
);
61 static void lttv_module_path_option(void *hook_data
);
63 static void lttv_verbose(void *hook_data
);
65 static void lttv_debug(void *hook_data
);
67 static void lttv_fatal(void *hook_data
);
69 static void lttv_help(void *hook_data
);
71 /* This is the handler to specify when we dont need all the debugging
72 messages. It receives the message and does nothing. */
74 void ignore_and_drop_message(const gchar
*log_domain
, GLogLevelFlags log_level
,
75 const gchar
*message
, gpointer user_data
) {
79 /* Since everything is done in modules, the main program only takes care
80 of the infrastructure. */
82 int main(int argc
, char **argv
) {
87 *profile_memory_short_option
= "-M",
88 *profile_memory_long_option
= "--memory";
90 gboolean profile_memory
= FALSE
;
92 LttvAttributeValue value
;
97 /* Before anything else, check if memory profiling is requested */
99 for(i
= 1 ; i
< argc
; i
++) {
100 if(*(argv
[i
]) != '-') break;
101 if(strcmp(argv
[i
], profile_memory_short_option
) == 0 ||
102 strcmp(argv
[i
], profile_memory_long_option
) == 0) {
103 g_mem_set_vtable(glib_mem_profiler_table
);
104 g_message("Memory summary before main");
106 profile_memory
= TRUE
;
112 /* Initialize glib and by default ignore info and debug messages */
115 //g_type_init_with_debug_flags (G_TYPE_DEBUG_OBJECTS | G_TYPE_DEBUG_SIGNALS);
116 g_log_set_handler(NULL
, G_LOG_LEVEL_INFO
, ignore_and_drop_message
, NULL
);
117 g_log_set_handler(NULL
, G_LOG_LEVEL_DEBUG
, ignore_and_drop_message
, NULL
);
120 /* Have an attributes subtree to store hooks to be registered by modules. */
122 attributes
= LTTV_IATTRIBUTE(g_object_new(LTTV_ATTRIBUTE_TYPE
, NULL
));
124 before_options
= lttv_hooks_new();
125 after_options
= lttv_hooks_new();
126 before_main
= lttv_hooks_new();
127 after_main
= lttv_hooks_new();
130 /* Create a number of hooks lists */
132 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/options/before",
133 LTTV_POINTER
, &value
));
134 *(value
.v_pointer
) = before_options
;
135 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/options/after",
136 LTTV_POINTER
, &value
));
137 *(value
.v_pointer
) = after_options
;
138 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/main/before",
139 LTTV_POINTER
, &value
));
140 *(value
.v_pointer
) = before_main
;
141 g_assert(lttv_iattribute_find_by_path(attributes
, "hooks/main/after",
142 LTTV_POINTER
, &value
));
143 *(value
.v_pointer
) = after_main
;
146 /* Initialize the command line options processing */
148 GError
*error
= NULL
;
150 LttvModule
*module_module
= lttv_module_require("module", &error
);
151 if(error
!= NULL
) g_error("%s", error
->message
);
152 LttvModule
*module_option
= lttv_module_require("option", &error
);
153 if(error
!= NULL
) g_error("%s", error
->message
);
155 /* Initialize the module loading */
157 lttv_library_path_add(PACKAGE_PLUGIN_DIR
);
160 /* Add some built-in options */
162 lttv_option_add("module",'m', "load a module", "name of module to load",
163 LTTV_OPT_STRING
, &a_module
, lttv_module_option
, NULL
);
165 lttv_option_add("modules-path", 'L',
166 "add a directory to the module search path",
167 "directory to add to the path", LTTV_OPT_STRING
, &a_module_path
,
168 lttv_module_path_option
, NULL
);
170 lttv_option_add("help",'h', "basic help", "none",
171 LTTV_OPT_NONE
, NULL
, lttv_help
, NULL
);
174 lttv_option_add("verbose",'v', "print information messages", "none",
175 LTTV_OPT_NONE
, NULL
, lttv_verbose
, NULL
);
178 lttv_option_add("debug",'d', "print debugging messages", "none",
179 LTTV_OPT_NONE
, NULL
, lttv_debug
, NULL
);
182 lttv_option_add("fatal",'f', "make critical messages fatal",
184 LTTV_OPT_NONE
, NULL
, lttv_fatal
, NULL
);
186 lttv_profile_memory
= FALSE
;
187 lttv_option_add(profile_memory_long_option
+ 2,
188 profile_memory_short_option
[1], "print memory information", "none",
189 LTTV_OPT_NONE
, <tv_profile_memory
, NULL
, NULL
);
192 /* Process the options */
194 lttv_hooks_call(before_options
, NULL
);
195 lttv_option_parse(argc
, argv
);
196 lttv_hooks_call(after_options
, NULL
);
199 /* Memory profiling to be useful must be activated as early as possible */
201 if(profile_memory
!= lttv_profile_memory
)
202 g_error("Memory profiling options must appear before other options");
205 /* Do the main work */
207 lttv_hooks_call(before_main
, NULL
);
208 lttv_hooks_call(after_main
, NULL
);
211 /* Clean up everything */
213 lttv_module_release(module_option
);
214 lttv_module_release(module_module
);
216 lttv_hooks_destroy(before_options
);
217 lttv_hooks_destroy(after_options
);
218 lttv_hooks_destroy(before_main
);
219 lttv_hooks_destroy(after_main
);
220 g_object_unref(attributes
);
223 g_message("Memory summary after main");
230 LttvAttribute
*lttv_global_attributes()
232 return (LttvAttribute
*)attributes
;
236 void lttv_module_option(void *hook_data
)
238 GError
*error
= NULL
;
240 lttv_module_require(a_module
, &error
);
241 if(error
!= NULL
) g_error("%s", error
->message
);
245 void lttv_module_path_option(void *hook_data
)
247 lttv_library_path_add(a_module_path
);
251 void lttv_verbose(void *hook_data
)
253 g_log_set_handler(NULL
, G_LOG_LEVEL_INFO
, g_log_default_handler
, NULL
);
254 g_info("Logging set to include INFO level messages");
257 void lttv_debug(void *hook_data
)
259 g_log_set_handler(NULL
, G_LOG_LEVEL_DEBUG
, g_log_default_handler
, NULL
);
260 g_info("Logging set to include DEBUG level messages");
263 void lttv_fatal(void *hook_data
)
265 //g_log_set_always_fatal(G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL);
266 g_log_set_always_fatal(G_LOG_LEVEL_CRITICAL
);
267 g_info("Critical log from glib will abort execution");
270 void lttv_help(void *hook_data
)
272 printf("Linux Trace Toolkit Visualizer\n");
274 lttv_option_show_help();
280 - Define formally traceset/trace in the GUI for the user and decide how
281 trace/traceset sharing goes in the application.
283 - Use appropriately the new functions in time.h
285 - remove the separate tracefiles (control/per cpu) arrays/loops in context.
287 - split processTrace into context.c and processTrace.c
289 - check spelling conventions.
291 - get all the copyright notices.
293 - remove all the warnings.
295 - get all the .h files properly doxygen commented to produce useful documents.
297 - have an intro/architecture document.
299 - write a tutorial */