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b670bb7c BP |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca> | |
3 | * | |
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; | |
7 | * | |
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. | |
12 | * | |
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, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #define _GNU_SOURCE | |
20 | ||
21 | #ifdef HAVE_CONFIG_H | |
22 | #include <config.h> | |
23 | #endif | |
24 | ||
25 | #include <errno.h> | |
26 | #include <fcntl.h> | |
27 | #include <getopt.h> | |
28 | #include <stdio.h> | |
29 | #include <stdlib.h> | |
30 | #include <string.h> | |
31 | #include <sys/resource.h> | |
32 | #include <sys/stat.h> | |
33 | #include <sys/time.h> | |
34 | #include <sys/types.h> | |
35 | #include <sys/stat.h> | |
36 | #include <unistd.h> | |
37 | ||
38 | #include "sync_chain.h" | |
39 | ||
40 | ||
41 | struct OptionsInfo | |
42 | { | |
43 | GArray* longOptions; | |
44 | GString* optionString; | |
48b641c1 BP |
45 | GQueue* longIndex; |
46 | GHashTable* shortIndex; | |
b670bb7c BP |
47 | }; |
48 | ||
49 | ||
50 | const char* processOptions(const int argc, char* const argv[]); | |
51 | static void usage(const char* const programName); | |
52 | static void gfPrintModuleOption(gpointer data, gpointer user_data); | |
53 | static void nullLog(const gchar *log_domain, GLogLevelFlags log_level, const | |
54 | gchar *message, gpointer user_data); | |
55 | static void gfAddModuleOption(gpointer data, gpointer user_data); | |
48b641c1 BP |
56 | static guint ghfCharHash(gconstpointer key); |
57 | static gboolean gefCharEqual(gconstpointer a, gconstpointer b); | |
b670bb7c BP |
58 | |
59 | ||
60 | static ModuleOption optionSyncStats= { | |
61 | .shortName= 's', | |
62 | .longName= "sync-stats", | |
63 | .hasArg= NO_ARG, | |
64 | .optionHelp= "Print statistics and debug messages", | |
65 | }; | |
66 | static char graphsDir[20]; | |
67 | static ModuleOption optionSyncGraphs= { | |
68 | .shortName= 'g', | |
69 | .longName= "sync-graphs", | |
70 | .hasArg= OPTIONAL_ARG, | |
71 | .optionHelp= "Output gnuplot graph showing synchronization points", | |
72 | }; | |
73 | static ModuleOption optionSyncAnalysis= { | |
74 | .shortName= 'a', | |
75 | .longName= "sync-analysis", | |
76 | .hasArg= REQUIRED_ARG, | |
77 | .optionHelp= "Specify which algorithm to use for event analysis", | |
78 | }; | |
79 | ||
80 | ||
81 | /* | |
82 | * Implement a sync chain, it is mostly for unittest and it does not depend on | |
83 | * lttv | |
84 | * | |
85 | * Args: | |
86 | * argc, argv: standard argument arrays | |
87 | * | |
88 | * Returns: | |
89 | * exit status from main() is always EXIT_SUCCESS | |
90 | */ | |
91 | int main(const int argc, char* const argv[]) | |
92 | { | |
93 | SyncState* syncState; | |
94 | struct timeval startTime, endTime; | |
95 | struct rusage startUsage, endUsage; | |
96 | GList* result; | |
97 | int retval; | |
98 | bool stats; | |
99 | const char* testCaseName; | |
100 | GString* analysisModulesNames; | |
101 | ||
102 | // Initialize data structures | |
103 | syncState= malloc(sizeof(SyncState)); | |
104 | ||
105 | // Process command line arguments | |
106 | g_assert(g_queue_get_length(&analysisModules) > 0); | |
107 | optionSyncAnalysis.arg= ((AnalysisModule*) | |
108 | g_queue_peek_head(&analysisModules))->name; | |
109 | analysisModulesNames= g_string_new("Available modules: "); | |
110 | g_queue_foreach(&analysisModules, &gfAppendAnalysisName, | |
111 | analysisModulesNames); | |
112 | // remove the last ", " | |
113 | g_string_truncate(analysisModulesNames, analysisModulesNames->len - 2); | |
114 | optionSyncAnalysis.argHelp= analysisModulesNames->str; | |
115 | ||
116 | retval= snprintf(graphsDir, sizeof(graphsDir), "graphs-%d", getpid()); | |
117 | if (retval > sizeof(graphsDir) - 1) | |
118 | { | |
119 | graphsDir[sizeof(graphsDir) - 1]= '\0'; | |
120 | } | |
121 | optionSyncGraphs.arg= graphsDir; | |
122 | ||
123 | g_queue_push_head(&moduleOptions, &optionSyncAnalysis); | |
124 | g_queue_push_head(&moduleOptions, &optionSyncGraphs); | |
125 | g_queue_push_head(&moduleOptions, &optionSyncStats); | |
126 | ||
127 | testCaseName= processOptions(argc, argv); | |
128 | ||
129 | g_string_free(analysisModulesNames, TRUE); | |
130 | ||
131 | if (optionSyncStats.present) | |
132 | { | |
133 | syncState->stats= true; | |
134 | gettimeofday(&startTime, 0); | |
135 | getrusage(RUSAGE_SELF, &startUsage); | |
136 | } | |
137 | else | |
138 | { | |
139 | syncState->stats= false; | |
140 | g_log_set_handler(NULL, G_LOG_LEVEL_DEBUG, nullLog, NULL); | |
141 | } | |
142 | ||
143 | if (optionSyncGraphs.present) | |
144 | { | |
145 | // Create the graph directory right away in case the module initialization | |
146 | // functions have something to write in it. | |
147 | syncState->graphsDir= optionSyncGraphs.arg; | |
148 | syncState->graphsStream= createGraphsDir(syncState->graphsDir); | |
149 | } | |
150 | else | |
151 | { | |
152 | syncState->graphsStream= NULL; | |
153 | syncState->graphsDir= NULL; | |
154 | } | |
155 | ||
156 | // Identify modules | |
157 | syncState->processingData= NULL; | |
158 | result= g_queue_find_custom(&processingModules, "text", | |
159 | &gcfCompareProcessing); | |
160 | g_assert(result != NULL); | |
161 | syncState->processingModule= (ProcessingModule*) result->data; | |
162 | ||
163 | syncState->matchingData= NULL; | |
164 | result= g_queue_find_custom(&matchingModules, "TCP", &gcfCompareMatching); | |
165 | g_assert(result != NULL); | |
166 | syncState->matchingModule= (MatchingModule*) result->data; | |
167 | ||
168 | syncState->analysisData= NULL; | |
169 | result= g_queue_find_custom(&analysisModules, optionSyncAnalysis.arg, | |
170 | &gcfCompareAnalysis); | |
171 | if (result != NULL) | |
172 | { | |
173 | syncState->analysisModule= (AnalysisModule*) result->data; | |
174 | } | |
175 | else | |
176 | { | |
177 | g_error("Analysis module '%s' not found", optionSyncAnalysis.arg); | |
178 | } | |
179 | ||
180 | // Initialize modules | |
181 | syncState->processingModule->initProcessing(syncState, testCaseName); | |
182 | syncState->matchingModule->initMatching(syncState); | |
183 | syncState->analysisModule->initAnalysis(syncState); | |
184 | ||
185 | // Process traceset | |
186 | syncState->processingModule->finalizeProcessing(syncState); | |
187 | ||
188 | // Write graphs file | |
189 | if (syncState->graphsStream) | |
190 | { | |
191 | writeGraphsScript(syncState); | |
192 | ||
193 | if (fclose(syncState->graphsStream) != 0) | |
194 | { | |
195 | g_error(strerror(errno)); | |
196 | } | |
197 | } | |
198 | ||
199 | // Print statistics | |
200 | if (syncState->stats) | |
201 | { | |
202 | printStats(syncState); | |
203 | } | |
204 | ||
205 | // Destroy modules and clean up | |
206 | syncState->processingModule->destroyProcessing(syncState); | |
207 | syncState->matchingModule->destroyMatching(syncState); | |
208 | syncState->analysisModule->destroyAnalysis(syncState); | |
209 | ||
210 | stats= syncState->stats; | |
211 | free(syncState); | |
212 | ||
213 | if (stats) | |
214 | { | |
215 | gettimeofday(&endTime, 0); | |
216 | retval= getrusage(RUSAGE_SELF, &endUsage); | |
217 | ||
218 | timeDiff(&endTime, &startTime); | |
219 | timeDiff(&endUsage.ru_utime, &startUsage.ru_utime); | |
220 | timeDiff(&endUsage.ru_stime, &startUsage.ru_stime); | |
221 | ||
222 | printf("Synchronization time:\n"); | |
223 | printf("\treal time: %ld.%06ld\n", endTime.tv_sec, endTime.tv_usec); | |
224 | printf("\tuser time: %ld.%06ld\n", endUsage.ru_utime.tv_sec, | |
225 | endUsage.ru_utime.tv_usec); | |
226 | printf("\tsystem time: %ld.%06ld\n", endUsage.ru_stime.tv_sec, | |
227 | endUsage.ru_stime.tv_usec); | |
228 | } | |
229 | ||
230 | return EXIT_SUCCESS; | |
231 | } | |
232 | ||
233 | ||
234 | /* | |
235 | * Read program arguments dans update ModuleOptions structures | |
236 | * | |
237 | * Args: | |
238 | * argc, argv: standard argument arrays | |
239 | * | |
240 | * Returns: | |
241 | * Name of the test case file (first parameter) | |
242 | */ | |
243 | const char* processOptions(const int argc, char* const argv[]) | |
244 | { | |
245 | int c; | |
246 | extern char* optarg; | |
247 | extern int optind, opterr, optopt; | |
248 | GArray* longOptions; | |
249 | GString* optionString; | |
48b641c1 BP |
250 | GQueue* longIndex; |
251 | int longOption; | |
252 | GHashTable* shortIndex; | |
b670bb7c BP |
253 | |
254 | longOptions= g_array_sized_new(TRUE, FALSE, sizeof(struct option), | |
255 | g_queue_get_length(&moduleOptions)); | |
256 | optionString= g_string_new(""); | |
48b641c1 BP |
257 | longIndex= g_queue_new(); |
258 | shortIndex= g_hash_table_new(&ghfCharHash, &gefCharEqual); | |
b670bb7c BP |
259 | |
260 | g_queue_foreach(&moduleOptions, &gfAddModuleOption, &(struct OptionsInfo) | |
48b641c1 | 261 | {longOptions, optionString, longIndex, shortIndex}); |
b670bb7c BP |
262 | |
263 | do | |
264 | { | |
265 | int optionIndex= 0; | |
48b641c1 | 266 | ModuleOption* moduleOption; |
b670bb7c | 267 | |
48b641c1 | 268 | longOption= -1; |
b670bb7c BP |
269 | c= getopt_long(argc, argv, optionString->str, (struct option*) |
270 | longOptions->data, &optionIndex); | |
271 | ||
48b641c1 BP |
272 | if (longOption >= 0 && longOption < g_queue_get_length(longIndex)) |
273 | { | |
274 | moduleOption= g_queue_peek_nth(longIndex, longOption); | |
275 | } | |
276 | else if ((moduleOption= g_hash_table_lookup(shortIndex, &c)) != NULL) | |
b670bb7c | 277 | { |
b670bb7c BP |
278 | } |
279 | else if (c == -1) | |
280 | { | |
281 | break; | |
282 | } | |
283 | else if (c == '?') | |
284 | { | |
285 | usage(argv[0]); | |
286 | abort(); | |
287 | } | |
288 | else | |
289 | { | |
290 | g_error("Option parse error"); | |
291 | } | |
48b641c1 BP |
292 | |
293 | moduleOption->present= true; | |
294 | ||
295 | if (moduleOption->hasArg == REQUIRED_ARG) | |
296 | { | |
297 | moduleOption->arg= optarg; | |
298 | } | |
299 | if (moduleOption->hasArg == OPTIONAL_ARG && optarg) | |
300 | { | |
301 | moduleOption->arg= optarg; | |
302 | } | |
b670bb7c BP |
303 | } while (c != -1); |
304 | ||
305 | g_array_free(longOptions, TRUE); | |
306 | g_string_free(optionString, TRUE); | |
48b641c1 BP |
307 | g_queue_free(longIndex); |
308 | g_hash_table_destroy(shortIndex); | |
b670bb7c BP |
309 | |
310 | if (argc <= optind) | |
311 | { | |
312 | fprintf(stderr, "Test file unspecified\n"); | |
313 | usage(argv[0]); | |
314 | abort(); | |
315 | } | |
316 | ||
317 | return argv[optind]; | |
318 | } | |
319 | ||
320 | ||
321 | /* | |
322 | * Print information about program options and arguments. | |
323 | * | |
324 | * Args: | |
325 | * programName: name of the program, as contained in argv[0] for example | |
326 | */ | |
327 | static void usage(const char* const programName) | |
328 | { | |
329 | printf( | |
330 | "%s [options] <test file>\n" | |
331 | "Options:\n", programName); | |
332 | ||
333 | g_queue_foreach(&moduleOptions, &gfPrintModuleOption, NULL); | |
334 | } | |
335 | ||
336 | ||
337 | /* | |
338 | * A GFunc for g_queue_foreach() | |
339 | * | |
340 | * Print analysis module names. | |
341 | * | |
342 | * Args: | |
343 | * data: ModuleOption*, option | |
344 | * user_data: NULL | |
345 | */ | |
346 | static void gfPrintModuleOption(gpointer data, gpointer user_data) | |
347 | { | |
348 | ModuleOption* option= data; | |
349 | int width= 0, sum= 0; | |
350 | const int colWidth= 27; | |
351 | ||
352 | printf("\t"); | |
353 | ||
354 | if (option->shortName) | |
355 | { | |
356 | printf("-%c, %n", option->shortName, &width); | |
357 | sum+= width; | |
358 | } | |
359 | ||
360 | printf("--%-s%n", option->longName, &width); | |
361 | sum+= width; | |
362 | ||
363 | if (option->hasArg == REQUIRED_ARG || option->hasArg == OPTIONAL_ARG) | |
364 | { | |
365 | printf("=[..]%n", &width); | |
366 | sum+= width; | |
367 | } | |
368 | ||
369 | if (option->optionHelp) | |
370 | { | |
371 | printf("%*s%s\n", colWidth - sum > 0 ? colWidth - sum : 0, "", option->optionHelp); | |
372 | } | |
373 | ||
374 | if (option->argHelp) | |
375 | { | |
376 | printf("\t%*s%s\n", colWidth, "", option->argHelp); | |
377 | } | |
378 | ||
379 | if ((option->hasArg == REQUIRED_ARG || option->hasArg == OPTIONAL_ARG) && option->arg) | |
380 | { | |
381 | printf("\t%*sDefault value: %s\n", colWidth, "", option->arg); | |
382 | } | |
383 | } | |
384 | ||
385 | ||
386 | /* | |
387 | * A Glib log function which does nothing. | |
388 | */ | |
389 | static void nullLog(const gchar *log_domain, GLogLevelFlags log_level, const | |
390 | gchar *message, gpointer user_data) | |
391 | {} | |
392 | ||
393 | ||
394 | /* | |
395 | * A GFunc for g_queue_foreach() | |
396 | * | |
397 | * Args: | |
398 | * data: ModuleOption*, option | |
399 | * user_data: struct OptionsInfo*, add option to this array of struct option | |
400 | */ | |
401 | static void gfAddModuleOption(gpointer data, gpointer user_data) | |
402 | { | |
403 | ModuleOption* option= data; | |
404 | struct OptionsInfo* optionsInfo= user_data; | |
405 | struct option newOption; | |
406 | // "[mixing enumerations] can still be considered bad style even though it | |
407 | // is not strictly illegal" c.faq 2.22 | |
408 | const int conversion[]= { | |
409 | [NO_ARG]= no_argument, | |
410 | [OPTIONAL_ARG]= optional_argument, | |
411 | [REQUIRED_ARG]= required_argument, | |
412 | }; | |
413 | const char* colons[]= { | |
414 | [NO_ARG]= "", | |
415 | [OPTIONAL_ARG]= "::", | |
416 | [REQUIRED_ARG]= ":", | |
417 | }; | |
418 | ||
419 | newOption.name= option->longName; | |
420 | newOption.has_arg= conversion[option->hasArg]; | |
421 | newOption.flag= NULL; | |
48b641c1 | 422 | newOption.val= g_queue_get_length(optionsInfo->longIndex); |
b670bb7c BP |
423 | |
424 | g_array_append_val(optionsInfo->longOptions, newOption); | |
48b641c1 BP |
425 | if (option->shortName) |
426 | { | |
427 | g_string_append_c(optionsInfo->optionString, option->shortName); | |
428 | g_string_append(optionsInfo->optionString, colons[option->hasArg]); | |
429 | ||
430 | g_hash_table_insert(optionsInfo->shortIndex, &option->shortName, | |
431 | option); | |
432 | } | |
433 | g_queue_push_tail(optionsInfo->longIndex, option); | |
434 | } | |
435 | ||
436 | ||
437 | /* | |
438 | * A GHashFunc for g_hash_table_new() | |
439 | * | |
440 | * Args: | |
441 | * key char*, just one character | |
442 | */ | |
443 | static guint ghfCharHash(gconstpointer key) | |
444 | { | |
445 | return *(char*) key; | |
446 | } | |
447 | ||
448 | ||
449 | /* | |
450 | * A GEqualFunc for g_hash_table_new() | |
451 | * | |
452 | * Args: | |
453 | * a, b char*, just one character each | |
454 | * | |
455 | * Returns: | |
456 | * TRUE if both values are equal | |
457 | */ | |
458 | static gboolean gefCharEqual(gconstpointer a, gconstpointer b) | |
459 | { | |
460 | if (*(char*) a == *(char*) b) | |
461 | { | |
462 | return TRUE; | |
463 | } | |
464 | else | |
465 | { | |
466 | return FALSE; | |
467 | } | |
b670bb7c | 468 | } |