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