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   lttv_state_add_event_hooks(tc);
  93   if(a_stats) lttv_stats_add_event_hooks(tscs);
  94
  95   retval= lttv_iattribute_find_by_path(attributes, "filter/expression",
  96     LTTV_POINTER, &value_expression);
  97   g_assert(retval);
  98
  99   retval= lttv_iattribute_find_by_path(attributes, "filter/lttv_filter",
 100     LTTV_POINTER, &value_filter);
 101   g_assert(retval);
 102
 103   /* Repeat the search for the first element, the second search might have
 104    * moved the first element (by creating the second element)
 105    */
 106   retval= lttv_iattribute_find_by_path(attributes, "filter/expression",
 107     LTTV_POINTER, &value_expression);
 108   g_assert(retval);
 109
 110   *(value_filter.v_pointer) = lttv_filter_new();
 111   //g_debug("Filter string: %s",((GString*)*(value_expression.v_pointer))->str);
 112
 113   lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
 114
 115   //lttv_traceset_context_add_hooks(tc,
 116   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 117   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 118   lttv_process_traceset_begin(tc,
 119                               before_traceset,
 120                               before_trace,
 121                               before_tracefile,
 122                               event_hook,
 123                               NULL);
 124
 125   start.tv_sec = 0;
 126   start.tv_nsec = 0;
 127   end.tv_sec = G_MAXULONG;
 128   end.tv_nsec = G_MAXULONG;
 129
 130   g_info("BatchAnalysis process traceset");
 131
 132   lttv_process_traceset_seek_time(tc, start);
 133   lttv_process_traceset_middle(tc,
 134                                end,
 135                                G_MAXULONG,
 136                                NULL);
 137
 138
 139   //lttv_traceset_context_remove_hooks(tc,
 140   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 141   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 142   lttv_process_traceset_end(tc,
 143                             after_traceset,
 144                             after_trace,
 145                             after_tracefile,
 146                             event_hook,
 147                             NULL);
 148
 149   g_info("BatchAnalysis destroy context");
 150
 151   lttv_filter_destroy(*(value_filter.v_pointer));
 152   lttv_state_remove_event_hooks(tss);
 153   if(a_stats) lttv_stats_remove_event_hooks(tscs);
 154   lttv_context_fini(tc);
 155   if (a_stats)
 156     g_object_unref(tscs);
 157   else
 158     g_object_unref(tss);
 159
 160   g_info("BatchAnalysis end process traceset");
 161   return FALSE;
 162 }
 163
 164
 165 static void init()
 166 {
 167   LttvAttributeValue value;
 168
 169   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
 170   gboolean retval;
 171
 172   g_info("Init batchAnalysis.c");
 173
 174   lttv_option_add("trace", 't',
 175       "add a trace to the trace set to analyse",
 176       "pathname of the directory containing the trace",
 177       LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);
 178
 179   a_stats = FALSE;
 180   lttv_option_add("stats", 's',
 181       "write the traceset and trace statistics",
 182       "",
 183       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 184
 185
 186   traceset = lttv_traceset_new();
 187
 188   before_traceset = lttv_hooks_new();
 189   after_traceset = lttv_hooks_new();
 190   before_trace = lttv_hooks_new();
 191   after_trace = lttv_hooks_new();
 192   before_tracefile = lttv_hooks_new();
 193   after_tracefile = lttv_hooks_new();
 194   //before_event = lttv_hooks_new();
 195   //after_event = lttv_hooks_new();
 196   event_hook = lttv_hooks_new();
 197
 198   retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 199     LTTV_POINTER, &value);
 200   g_assert(retval);
 201   *(value.v_pointer) = before_traceset;
 202   retval= lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 203     LTTV_POINTER, &value);
 204   g_assert(retval);
 205   *(value.v_pointer) = after_traceset;
 206   retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 207     LTTV_POINTER, &value);
 208   g_assert(retval);
 209   *(value.v_pointer) = before_trace;
 210   retval= lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 211     LTTV_POINTER, &value);
 212   g_assert(retval);
 213   *(value.v_pointer) = after_trace;
 214   retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 215     LTTV_POINTER, &value);
 216   g_assert(retval);
 217   *(value.v_pointer) = before_tracefile;
 218   retval= lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 219     LTTV_POINTER, &value);
 220   g_assert(retval);
 221   *(value.v_pointer) = after_tracefile;
 222   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 223   //    LTTV_POINTER, &value));
 224   //*(value.v_pointer) = before_event;
 225   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 226   //    LTTV_POINTER, &value));
 227   //*(value.v_pointer) = after_event;
 228   retval= lttv_iattribute_find_by_path(attributes, "hooks/event",
 229     LTTV_POINTER, &value);
 230   g_assert(retval);
 231   *(value.v_pointer) = event_hook;
 232
 233   retval= lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 234     LTTV_POINTER, &value);
 235   g_assert(retval);
 236   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 237   lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
 238 }
 239
 240 static void destroy()
 241 {
 242   guint i, nb;
 243
 244   LttvTrace *trace;
 245
 246   g_info("Destroy batchAnalysis.c");
 247
 248   lttv_option_remove("trace");
 249   lttv_option_remove("stats");
 250
 251   lttv_hooks_destroy(before_traceset);
 252   lttv_hooks_destroy(after_traceset);
 253   lttv_hooks_destroy(before_trace);
 254   lttv_hooks_destroy(after_trace);
 255   lttv_hooks_destroy(before_tracefile);
 256   lttv_hooks_destroy(after_tracefile);
 257   //lttv_hooks_destroy(before_event);
 258   //lttv_hooks_destroy(after_event);
 259   lttv_hooks_destroy(event_hook);
 260   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 261
 262   nb = lttv_traceset_number(traceset);
 263   for(i = 0 ; i < nb ; i++) {
 264     trace = lttv_traceset_get(traceset, i);
 265     ltt_trace_close(lttv_trace(trace));
 266     /* This will be done by lttv_traceset_destroy */
 267     //lttv_trace_destroy(trace);
 268   }
 269
 270   lttv_traceset_destroy(traceset);
 271 }
 272
 273 LTTV_MODULE("batchAnalysis", "Batch processing of a trace", \
 274     "Run through a trace calling all the registered hooks", \
 275     init, destroy, "state", "stats", "option","textFilter")