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 <lttv/filter.h>
  32 #include <ltt/trace.h>
  33
  34 static LttvTraceset *traceset;
  35
  36 static LttvHooks
  37   *before_traceset,
  38   *after_traceset,
  39   *before_trace,
  40   *after_trace,
  41   *before_tracefile,
  42   *after_tracefile,
  43   *event_hook,
  44   *main_hooks;
  45
  46 static char *a_trace;
  47
  48 static gboolean a_stats;
  49
  50 static LttvFilter *a_lttv_filter;
  51
  52 extern GString *a_filter_string;
  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   LttvTracesetStats *tscs;
  67
  68   LttvTracesetContext *tc;
  69
  70   LttTime start, end;
  71
  72   g_info("BatchAnalysis begin process traceset");
  73
  74   tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
  75   tc = &tscs->parent.parent;
  76
  77   g_info("BatchAnalysis initialize context");
  78
  79   lttv_context_init(tc, traceset);
  80   lttv_state_add_event_hooks(&tscs->parent);
  81   if(a_stats) lttv_stats_add_event_hooks(tscs);
  82
  83   a_lttv_filter = lttv_filter_new();
  84   lttv_filter_append_expression(a_lttv_filter,a_filter_string->str);
  85
  86   //lttv_traceset_context_add_hooks(tc,
  87   //before_traceset, after_traceset, NULL, before_trace, after_trace,
  88   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
  89   lttv_process_traceset_begin(tc,
  90                               before_traceset,
  91                               before_trace,
  92                               before_tracefile,
  93                               event_hook,
  94                               NULL);
  95
  96   start.tv_sec = 0;
  97   start.tv_nsec = 0;
  98   end.tv_sec = G_MAXULONG;
  99   end.tv_nsec = G_MAXULONG;
 100
 101   g_info("BatchAnalysis process traceset");
 102
 103   lttv_process_traceset_seek_time(tc, start);
 104   lttv_process_traceset_middle(tc,
 105                                end,
 106                                G_MAXULONG,
 107                                NULL);
 108
 109   g_info("BatchAnalysis destroy context");
 110
 111   //lttv_traceset_context_remove_hooks(tc,
 112   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 113   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 114   lttv_process_traceset_end(tc,
 115                             after_traceset,
 116                             after_trace,
 117                             after_tracefile,
 118                             event_hook,
 119                             NULL);
 120
 121   lttv_filter_destroy(a_lttv_filter);
 122   lttv_state_remove_event_hooks(&tscs->parent);
 123   if(a_stats) lttv_stats_remove_event_hooks(tscs);
 124   lttv_context_fini(tc);
 125   g_object_unref(tscs);
 126
 127   g_info("BatchAnalysis end process traceset");
 128   return FALSE;
 129 }
 130
 131
 132 static void init()
 133 {
 134   LttvAttributeValue value;
 135
 136   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
 137
 138   g_info("Init batchAnalysis.c");
 139
 140   lttv_option_add("trace", 't',
 141       "add a trace to the trace set to analyse",
 142       "pathname of the directory containing the trace",
 143       LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);
 144
 145   a_stats = FALSE;
 146   lttv_option_add("stats", 's',
 147       "write the traceset and trace statistics",
 148       "",
 149       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 150
 151
 152   traceset = lttv_traceset_new();
 153
 154   before_traceset = lttv_hooks_new();
 155   after_traceset = lttv_hooks_new();
 156   before_trace = lttv_hooks_new();
 157   after_trace = lttv_hooks_new();
 158   before_tracefile = lttv_hooks_new();
 159   after_tracefile = lttv_hooks_new();
 160   //before_event = lttv_hooks_new();
 161   //after_event = lttv_hooks_new();
 162   event_hook = lttv_hooks_new();
 163
 164   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 165       LTTV_POINTER, &value));
 166   *(value.v_pointer) = before_traceset;
 167   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 168       LTTV_POINTER, &value));
 169   *(value.v_pointer) = after_traceset;
 170   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 171       LTTV_POINTER, &value));
 172   *(value.v_pointer) = before_trace;
 173   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 174       LTTV_POINTER, &value));
 175   *(value.v_pointer) = after_trace;
 176   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 177       LTTV_POINTER, &value));
 178   *(value.v_pointer) = before_tracefile;
 179   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 180       LTTV_POINTER, &value));
 181   *(value.v_pointer) = after_tracefile;
 182   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 183   //    LTTV_POINTER, &value));
 184   //*(value.v_pointer) = before_event;
 185   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 186   //    LTTV_POINTER, &value));
 187   //*(value.v_pointer) = after_event;
 188   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event",
 189       LTTV_POINTER, &value));
 190   *(value.v_pointer) = event_hook;
 191
 192   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 193       LTTV_POINTER, &value));
 194   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 195   lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
 196 }
 197
 198
 199 static void destroy()
 200 {
 201   guint i, nb;
 202
 203   LttvTrace *trace;
 204
 205   g_info("Destroy batchAnalysis.c");
 206
 207   lttv_option_remove("trace");
 208   lttv_option_remove("stats");
 209
 210   lttv_hooks_destroy(before_traceset);
 211   lttv_hooks_destroy(after_traceset);
 212   lttv_hooks_destroy(before_trace);
 213   lttv_hooks_destroy(after_trace);
 214   lttv_hooks_destroy(before_tracefile);
 215   lttv_hooks_destroy(after_tracefile);
 216   //lttv_hooks_destroy(before_event);
 217   //lttv_hooks_destroy(after_event);
 218   lttv_hooks_destroy(event_hook);
 219   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 220
 221   nb = lttv_traceset_number(traceset);
 222   for(i = 0 ; i < nb ; i++) {
 223     trace = lttv_traceset_get(traceset, i);
 224     ltt_trace_close(lttv_trace(trace));
 225     /* This will be done by lttv_traceset_destroy */
 226     //lttv_trace_destroy(trace);
 227   }
 228
 229   lttv_traceset_destroy(traceset);
 230 }
 231
 232
 233 LTTV_MODULE("batchAnalysis", "Batch processing of a trace", \
 234     "Run through a trace calling all the registered hooks", \
 235     init, destroy, "state", "stats", "option","textFilter")