lttv/modules/text/batchAnalysis.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Michel Dagenais
   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 /* This module inserts a hook in the program main loop. This hook processes
  20    all the events in the main tracefile. */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <glib.h>
  27 #include <unistd.h>
  28 #include <lttv/lttv.h>
  29 #include <lttv/attribute.h>
  30 #include <lttv/hook.h>
  31 #include <lttv/option.h>
  32 #include <lttv/module.h>
  33 #include <lttv/traceset-process.h>
  34 #include <lttv/state.h>
  35 #ifdef BABEL_CLEANUP
  36 #include <lttv/stats.h>
  37 #include <lttv/filter.h>
  38 #endif
  39 #include <ltt/trace.h>
  40 #ifdef BABEL_CLEANUP_SYNC
  41 #include <lttv/sync/sync_chain_lttv.h>
  42 #endif
  43 #include <babeltrace/context.h>
  44
  45 static LttvTraceset *traceset;
  46
  47 static LttvHooks
  48   *before_traceset,
  49   *after_traceset,
  50   *before_trace,
  51   *after_trace,
  52   *before_tracefile,
  53   *after_tracefile,
  54   *event_hook,
  55   *main_hooks;
  56
  57 static char *trace_path;
  58
  59 static gboolean a_stats;
  60 static gboolean a_live;
  61 static int a_live_update_period;
  62
  63 #define DEFAULT_LIVE_UPDATE_PERIOD 1
  64
  65 void lttv_trace_option(void *hook_data)
  66 {
  67   //LttTrace *trace;
  68   //trace_collection *trace;
  69   //format *fmt = bt_lookup_format(g_quark_from_static_string("ctf"));
  70   /*
  71   if(a_live) {
  72     //trace = ltt_trace_open_live(a_trace);
  73   } else {
  74     bt_create_context();
  75     //trace = bt_add_trace(a_trace,"ctf");
  76   }
  77   if(trace == NULL) g_critical("cannot open trace %s", a_trace);
  78   lttv_traceset_add(traceset, lttv_trace_new(trace));*/
  79
  80   if(lttv_traceset_add_path(traceset, trace_path) < 0) {
  81     printf("Cannot add trace %s", trace_path);
  82   }
  83 }
  84
  85
  86 static gboolean process_traceset(void *hook_data, void *call_data)
  87 {
  88   LttvAttributeValue value_expression, value_filter;
  89
  90   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
  91
  92 #ifdef BABEL_CLEANUP
  93   LttvTracesetStats *tscs = NULL;
  94
  95   LttvTracesetState *tss;
  96
  97   LttvTracesetContext *tc;
  98 #endif
  99   LttTime start, end;
 100   gboolean retval;
 101
 102   g_info("BatchAnalysis begin process traceset");
 103 #ifdef BABEL_CLEANUP
 104   if (a_stats) {
 105     tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
 106     tss = &tscs->parent;
 107   } else {
 108     tss = g_object_new(LTTV_TRACESET_STATE_TYPE, NULL);
 109   }
 110   tc = &tss->parent;
 111
 112   g_info("BatchAnalysis initialize context");
 113
 114   lttv_context_init(tc, traceset);
 115
 116
 117   syncTraceset(tc);
 118
 119   lttv_state_add_event_hooks(tss);
 120   if(a_stats) lttv_stats_add_event_hooks(tscs);
 121
 122
 123   retval= lttv_iattribute_find_by_path(attributes, "filter/expression",
 124     LTTV_POINTER, &value_expression);
 125   g_assert(retval);
 126
 127   retval= lttv_iattribute_find_by_path(attributes, "filter/lttv_filter",
 128     LTTV_POINTER, &value_filter);
 129   g_assert(retval);
 130
 131   /* Repeat the search for the first element, the second search might have
 132    * moved the first element (by creating the second element)
 133    */
 134   retval= lttv_iattribute_find_by_path(attributes, "filter/expression",
 135     LTTV_POINTER, &value_expression);
 136   g_assert(retval);
 137
 138   *(value_filter.v_pointer) = lttv_filter_new();
 139   //g_debug("Filter string: %s",((GString*)*(value_expression.v_pointer))->str);
 140
 141   lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
 142 #endif
 143   //lttv_traceset_context_add_hooks(tc,
 144   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 145   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 146
 147   lttv_state_add_event_hooks(traceset);
 148   lttv_process_traceset_begin(traceset,
 149                               before_traceset,
 150                               before_trace,
 151                               event_hook);
 152
 153   start.tv_sec = 0;
 154   start.tv_nsec = 0;
 155   end.tv_sec = G_MAXULONG;
 156   end.tv_nsec = G_MAXULONG;
 157
 158   g_info("BatchAnalysis process traceset");
 159
 160   lttv_process_traceset_seek_time(traceset, start);
 161   /* Read as long a we do not reach the end (0) */
 162   unsigned int count;
 163   unsigned int updated_count;
 164   do {
 165           count = lttv_process_traceset_middle(traceset,
 166                                                           end,
 167                                                           G_MAXULONG,
 168                                                           NULL);
 169
 170 #ifdef BABEL_CLEANUP
 171           updated_count = lttv_process_traceset_update(tc);
 172 #endif
 173
 174           sleep(a_live_update_period);
 175   } while(count != 0
 176 #ifdef BABEL_CLEANUP
 177       || updated_count > 0
 178 #endif
 179       );
 180
 181
 182   //lttv_traceset_context_remove_hooks(tc,
 183   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 184   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 185   lttv_process_traceset_end(traceset,
 186                             after_traceset,
 187                             after_trace,
 188                             event_hook);
 189
 190   g_info("BatchAnalysis destroy context");
 191 #ifdef BABEL_CLEANUP
 192   lttv_filter_destroy(*(value_filter.v_pointer));
 193
 194   lttv_state_remove_event_hooks(tss);
 195   if(a_stats) lttv_stats_remove_event_hooks(tscs);
 196
 197   lttv_context_fini(tc);
 198   if (a_stats)
 199     g_object_unref(tscs);
 200   else
 201     g_object_unref(tss);
 202 #endif
 203   g_info("BatchAnalysis end process traceset");
 204   return FALSE;
 205 }
 206
 207
 208 static void init()
 209 {
 210   LttvAttributeValue value;
 211
 212   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
 213   gboolean retval;
 214
 215   g_info("Init batchAnalysis.c");
 216
 217   lttv_option_add("trace", 't',
 218       "add a trace to the trace set to analyse",
 219       "pathname of the directory containing the trace",
 220       LTTV_OPT_STRING, &trace_path, lttv_trace_option, NULL);
 221
 222   a_stats = FALSE;
 223   lttv_option_add("stats", 's',
 224       "write the traceset and trace statistics",
 225       "",
 226       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 227
 228   a_live = FALSE;
 229   lttv_option_add("live", 0,
 230       "define if the traceset is receiving live informations",
 231       "",
 232       LTTV_OPT_NONE, &a_live, NULL, NULL);
 233
 234   a_live_update_period = DEFAULT_LIVE_UPDATE_PERIOD;
 235   lttv_option_add("live-period", 0,
 236                   "period to update a live trace",
 237                   "in seconds",
 238                   LTTV_OPT_INT,
 239                   &a_live_update_period,
 240                   NULL, NULL);
 241
 242
 243   traceset = lttv_traceset_new();
 244
 245   before_traceset = lttv_hooks_new();
 246   after_traceset = lttv_hooks_new();
 247   before_trace = lttv_hooks_new();
 248   after_trace = lttv_hooks_new();
 249   before_tracefile = lttv_hooks_new();
 250   after_tracefile = lttv_hooks_new();
 251   //before_event = lttv_hooks_new();
 252   //after_event = lttv_hooks_new();
 253   event_hook = lttv_hooks_new();
 254
 255   retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 256     LTTV_POINTER, &value);
 257   g_assert(retval);
 258   *(value.v_pointer) = before_traceset;
 259   retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 260     LTTV_POINTER, &value);
 261   g_assert(retval);
 262   *(value.v_pointer) = after_traceset;
 263   retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 264     LTTV_POINTER, &value);
 265   g_assert(retval);
 266   *(value.v_pointer) = before_trace;
 267   retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 268     LTTV_POINTER, &value);
 269   g_assert(retval);
 270   *(value.v_pointer) = after_trace;
 271   retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 272     LTTV_POINTER, &value);
 273   g_assert(retval);
 274   *(value.v_pointer) = before_tracefile;
 275   retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 276     LTTV_POINTER, &value);
 277   g_assert(retval);
 278   *(value.v_pointer) = after_tracefile;
 279   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 280   //    LTTV_POINTER, &value));
 281   //*(value.v_pointer) = before_event;
 282   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 283   //    LTTV_POINTER, &value));
 284   //*(value.v_pointer) = after_event;
 285   retval= lttv_iattribute_find_by_path(attributes, "hooks/event",
 286     LTTV_POINTER, &value);
 287   g_assert(retval);
 288   *(value.v_pointer) = event_hook;
 289
 290   retval= lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 291     LTTV_POINTER, &value);
 292   g_assert(retval);
 293   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 294   lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
 295 }
 296
 297 static void destroy()
 298 {
 299 #ifdef BABEL_CLEANUP
 300   guint i, nb;
 301
 302   LttvTrace *trace;
 303 #endif
 304
 305   g_info("Destroy batchAnalysis.c");
 306
 307   lttv_option_remove("trace");
 308   lttv_option_remove("stats");
 309   lttv_option_remove("live");
 310   lttv_option_remove("live-period");
 311
 312   lttv_hooks_destroy(before_traceset);
 313   lttv_hooks_destroy(after_traceset);
 314   lttv_hooks_destroy(before_trace);
 315   lttv_hooks_destroy(after_trace);
 316   lttv_hooks_destroy(before_tracefile);
 317   lttv_hooks_destroy(after_tracefile);
 318   //lttv_hooks_destroy(before_event);
 319   //lttv_hooks_destroy(after_event);
 320   lttv_hooks_destroy(event_hook);
 321   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 322
 323 #ifdef BABEL_CLEANUP
 324   nb = lttv_traceset_number(traceset);
 325   for(i = 0 ; i < nb ; i++) {
 326     trace = lttv_traceset_get(traceset, i);
 327     ltt_trace_close(lttv_trace(trace));
 328     lttv_trace_destroy(trace);
 329   }
 330 #endif
 331   lttv_traceset_destroy(traceset);
 332 }
 333
 334 LTTV_MODULE("batchAnalysis", "Batch processing of a trace", \
 335     "Run through a trace calling all the registered hooks", \
 336     init, destroy, "state", "option")
 337 //TODO ybrosseau 2012-05-15 reenable textFilter, stats, sync