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 <lttv/lttv.h>
  28 #include <lttv/attribute.h>
  29 #include <lttv/hook.h>
  30 #include <lttv/option.h>
  31 #include <lttv/module.h>
  32 #include <lttv/tracecontext.h>
  33 #include <lttv/state.h>
  34 #include <lttv/stats.h>
  35 #include <lttv/filter.h>
  36 #include <ltt/trace.h>
  37
  38 static LttvTraceset *traceset;
  39
  40 static LttvHooks
  41   *before_traceset,
  42   *after_traceset,
  43   *before_trace,
  44   *after_trace,
  45   *before_tracefile,
  46   *after_tracefile,
  47   *event_hook,
  48   *main_hooks;
  49
  50 static char *a_trace;
  51
  52 static gboolean a_stats;
  53
  54 void lttv_trace_option(void *hook_data)
  55 {
  56   LttTrace *trace;
  57
  58   trace = ltt_trace_open(a_trace);
  59   if(trace == NULL) g_critical("cannot open trace %s", a_trace);
  60   lttv_traceset_add(traceset, lttv_trace_new(trace));
  61 }
  62
  63
  64 static gboolean process_traceset(void *hook_data, void *call_data)
  65 {
  66   LttvAttributeValue value_expression, value_filter;
  67
  68   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
  69
  70   LttvTracesetStats *tscs;
  71
  72   LttvTracesetState *tss;
  73
  74   LttvTracesetContext *tc;
  75
  76   LttTime start, end;
  77   gboolean retval;
  78
  79   g_info("BatchAnalysis begin process traceset");
  80
  81   if (a_stats) {
  82     tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
  83     tss = &tscs->parent;
  84   } else {
  85     tss = g_object_new(LTTV_TRACESET_STATE_TYPE, NULL);
  86   }
  87   tc = &tss->parent;
  88
  89   g_info("BatchAnalysis initialize context");
  90
  91   lttv_context_init(tc, traceset);
  92
  93   sync_traceset(tc);
  94
  95   lttv_state_add_event_hooks(tc);
  96   if(a_stats) lttv_stats_add_event_hooks(tscs);
  97
  98   retval= lttv_iattribute_find_by_path(attributes, "filter/expression",
  99     LTTV_POINTER, &value_expression);
 100   g_assert(retval);
 101
 102   retval= lttv_iattribute_find_by_path(attributes, "filter/lttv_filter",
 103     LTTV_POINTER, &value_filter);
 104   g_assert(retval);
 105
 106   /* Repeat the search for the first element, the second search might have
 107    * moved the first element (by creating the second element)
 108    */
 109   retval= lttv_iattribute_find_by_path(attributes, "filter/expression",
 110     LTTV_POINTER, &value_expression);
 111   g_assert(retval);
 112
 113   *(value_filter.v_pointer) = lttv_filter_new();
 114   //g_debug("Filter string: %s",((GString*)*(value_expression.v_pointer))->str);
 115
 116   lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
 117
 118   //lttv_traceset_context_add_hooks(tc,
 119   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 120   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 121   lttv_process_traceset_begin(tc,
 122                               before_traceset,
 123                               before_trace,
 124                               before_tracefile,
 125                               event_hook,
 126                               NULL);
 127
 128   start.tv_sec = 0;
 129   start.tv_nsec = 0;
 130   end.tv_sec = G_MAXULONG;
 131   end.tv_nsec = G_MAXULONG;
 132
 133   g_info("BatchAnalysis process traceset");
 134
 135   lttv_process_traceset_seek_time(tc, start);
 136   lttv_process_traceset_middle(tc,
 137                                end,
 138                                G_MAXULONG,
 139                                NULL);
 140
 141
 142   //lttv_traceset_context_remove_hooks(tc,
 143   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 144   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 145   lttv_process_traceset_end(tc,
 146                             after_traceset,
 147                             after_trace,
 148                             after_tracefile,
 149                             event_hook,
 150                             NULL);
 151
 152   g_info("BatchAnalysis destroy context");
 153
 154   lttv_filter_destroy(*(value_filter.v_pointer));
 155   lttv_state_remove_event_hooks(tss);
 156   if(a_stats) lttv_stats_remove_event_hooks(tscs);
 157   lttv_context_fini(tc);
 158   if (a_stats)
 159     g_object_unref(tscs);
 160   else
 161     g_object_unref(tss);
 162
 163   g_info("BatchAnalysis end process traceset");
 164   return FALSE;
 165 }
 166
 167
 168 static void init()
 169 {
 170   LttvAttributeValue value;
 171
 172   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
 173   gboolean retval;
 174
 175   g_info("Init batchAnalysis.c");
 176
 177   lttv_option_add("trace", 't',
 178       "add a trace to the trace set to analyse",
 179       "pathname of the directory containing the trace",
 180       LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);
 181
 182   a_stats = FALSE;
 183   lttv_option_add("stats", 's',
 184       "write the traceset and trace statistics",
 185       "",
 186       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 187
 188
 189   traceset = lttv_traceset_new();
 190
 191   before_traceset = lttv_hooks_new();
 192   after_traceset = lttv_hooks_new();
 193   before_trace = lttv_hooks_new();
 194   after_trace = lttv_hooks_new();
 195   before_tracefile = lttv_hooks_new();
 196   after_tracefile = lttv_hooks_new();
 197   //before_event = lttv_hooks_new();
 198   //after_event = lttv_hooks_new();
 199   event_hook = lttv_hooks_new();
 200
 201   retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 202     LTTV_POINTER, &value);
 203   g_assert(retval);
 204   *(value.v_pointer) = before_traceset;
 205   retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 206     LTTV_POINTER, &value);
 207   g_assert(retval);
 208   *(value.v_pointer) = after_traceset;
 209   retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 210     LTTV_POINTER, &value);
 211   g_assert(retval);
 212   *(value.v_pointer) = before_trace;
 213   retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 214     LTTV_POINTER, &value);
 215   g_assert(retval);
 216   *(value.v_pointer) = after_trace;
 217   retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 218     LTTV_POINTER, &value);
 219   g_assert(retval);
 220   *(value.v_pointer) = before_tracefile;
 221   retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 222     LTTV_POINTER, &value);
 223   g_assert(retval);
 224   *(value.v_pointer) = after_tracefile;
 225   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 226   //    LTTV_POINTER, &value));
 227   //*(value.v_pointer) = before_event;
 228   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 229   //    LTTV_POINTER, &value));
 230   //*(value.v_pointer) = after_event;
 231   retval= lttv_iattribute_find_by_path(attributes, "hooks/event",
 232     LTTV_POINTER, &value);
 233   g_assert(retval);
 234   *(value.v_pointer) = event_hook;
 235
 236   retval= lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 237     LTTV_POINTER, &value);
 238   g_assert(retval);
 239   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 240   lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
 241 }
 242
 243 static void destroy()
 244 {
 245   guint i, nb;
 246
 247   LttvTrace *trace;
 248
 249   g_info("Destroy batchAnalysis.c");
 250
 251   lttv_option_remove("trace");
 252   lttv_option_remove("stats");
 253
 254   lttv_hooks_destroy(before_traceset);
 255   lttv_hooks_destroy(after_traceset);
 256   lttv_hooks_destroy(before_trace);
 257   lttv_hooks_destroy(after_trace);
 258   lttv_hooks_destroy(before_tracefile);
 259   lttv_hooks_destroy(after_tracefile);
 260   //lttv_hooks_destroy(before_event);
 261   //lttv_hooks_destroy(after_event);
 262   lttv_hooks_destroy(event_hook);
 263   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 264
 265   nb = lttv_traceset_number(traceset);
 266   for(i = 0 ; i < nb ; i++) {
 267     trace = lttv_traceset_get(traceset, i);
 268     ltt_trace_close(lttv_trace(trace));
 269     /* This will be done by lttv_traceset_destroy */
 270     //lttv_trace_destroy(trace);
 271   }
 272
 273   lttv_traceset_destroy(traceset);
 274 }
 275
 276 LTTV_MODULE("batchAnalysis", "Batch processing of a trace", \
 277     "Run through a trace calling all the registered hooks", \
 278     init, destroy, "state", "stats", "option","textFilter", "sync")