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