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