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 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <lttv/lttv.h>
  27 #include <lttv/attribute.h>
  28 #include <lttv/hook.h>
  29 #include <lttv/option.h>
  30 #include <lttv/module.h>
  31 #include <lttv/tracecontext.h>
  32 #include <lttv/state.h>
  33 #include <lttv/stats.h>
  34 #include <lttv/filter.h>
  35 #include <ltt/trace.h>
  36
  37 static LttvTraceset *traceset;
  38
  39 static LttvHooks
  40   *before_traceset,
  41   *after_traceset,
  42   *before_trace,
  43   *after_trace,
  44   *before_tracefile,
  45   *after_tracefile,
  46   *event_hook,
  47   *main_hooks;
  48
  49 static char *a_trace;
  50
  51 static gboolean a_stats;
  52
  53 void lttv_trace_option(void *hook_data)
  54 {
  55   LttTrace *trace;
  56
  57   trace = ltt_trace_open(a_trace);
  58   if(trace == NULL) g_critical("cannot open trace %s", a_trace);
  59   lttv_traceset_add(traceset, lttv_trace_new(trace));
  60 }
  61
  62
  63 static gboolean process_traceset(void *hook_data, void *call_data)
  64 {
  65   LttvAttributeValue value_expression, value_filter;
  66
  67   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
  68
  69   LttvTracesetStats *tscs;
  70
  71   LttvTracesetContext *tc;
  72
  73   LttTime start, end;
  74
  75   g_info("BatchAnalysis begin process traceset");
  76
  77   tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
  78   tc = &tscs->parent.parent;
  79
  80   g_info("BatchAnalysis initialize context");
  81
  82   lttv_context_init(tc, traceset);
  83   lttv_state_add_event_hooks(&tscs->parent);
  84   if(a_stats) lttv_stats_add_event_hooks(tscs);
  85
  86   g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
  87       LTTV_POINTER, &value_expression));
  88
  89   g_assert(lttv_iattribute_find_by_path(attributes, "filter/lttv_filter",
  90       LTTV_POINTER, &value_filter));
  91
  92   *(value_filter.v_pointer) = lttv_filter_new();
  93   g_debug("Filter string: %s",((GString*)*(value_expression.v_pointer))->str);
  94
  95   lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
  96
  97   //lttv_traceset_context_add_hooks(tc,
  98   //before_traceset, after_traceset, NULL, before_trace, after_trace,
  99   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 100   lttv_process_traceset_begin(tc,
 101                               before_traceset,
 102                               before_trace,
 103                               before_tracefile,
 104                               event_hook,
 105                               NULL);
 106
 107   start.tv_sec = 0;
 108   start.tv_nsec = 0;
 109   end.tv_sec = G_MAXULONG;
 110   end.tv_nsec = G_MAXULONG;
 111
 112   g_info("BatchAnalysis process traceset");
 113
 114   lttv_process_traceset_seek_time(tc, start);
 115   lttv_process_traceset_middle(tc,
 116                                end,
 117                                G_MAXULONG,
 118                                NULL);
 119
 120
 121   //lttv_traceset_context_remove_hooks(tc,
 122   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 123   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 124   lttv_process_traceset_end(tc,
 125                             after_traceset,
 126                             after_trace,
 127                             after_tracefile,
 128                             event_hook,
 129                             NULL);
 130
 131   g_info("BatchAnalysis destroy context");
 132
 133   lttv_filter_destroy(*(value_filter.v_pointer));
 134   lttv_state_remove_event_hooks(&tscs->parent);
 135   if(a_stats) lttv_stats_remove_event_hooks(tscs);
 136   lttv_context_fini(tc);
 137   g_object_unref(tscs);
 138
 139   g_info("BatchAnalysis end process traceset");
 140   return FALSE;
 141 }
 142
 143
 144 static void init()
 145 {
 146   LttvAttributeValue value;
 147
 148   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
 149
 150   g_info("Init batchAnalysis.c");
 151
 152   lttv_option_add("trace", 't',
 153       "add a trace to the trace set to analyse",
 154       "pathname of the directory containing the trace",
 155       LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);
 156
 157   a_stats = FALSE;
 158   lttv_option_add("stats", 's',
 159       "write the traceset and trace statistics",
 160       "",
 161       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 162
 163
 164   traceset = lttv_traceset_new();
 165
 166   before_traceset = lttv_hooks_new();
 167   after_traceset = lttv_hooks_new();
 168   before_trace = lttv_hooks_new();
 169   after_trace = lttv_hooks_new();
 170   before_tracefile = lttv_hooks_new();
 171   after_tracefile = lttv_hooks_new();
 172   //before_event = lttv_hooks_new();
 173   //after_event = lttv_hooks_new();
 174   event_hook = lttv_hooks_new();
 175
 176   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 177       LTTV_POINTER, &value));
 178   *(value.v_pointer) = before_traceset;
 179   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 180       LTTV_POINTER, &value));
 181   *(value.v_pointer) = after_traceset;
 182   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 183       LTTV_POINTER, &value));
 184   *(value.v_pointer) = before_trace;
 185   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 186       LTTV_POINTER, &value));
 187   *(value.v_pointer) = after_trace;
 188   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 189       LTTV_POINTER, &value));
 190   *(value.v_pointer) = before_tracefile;
 191   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 192       LTTV_POINTER, &value));
 193   *(value.v_pointer) = after_tracefile;
 194   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 195   //    LTTV_POINTER, &value));
 196   //*(value.v_pointer) = before_event;
 197   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 198   //    LTTV_POINTER, &value));
 199   //*(value.v_pointer) = after_event;
 200   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event",
 201       LTTV_POINTER, &value));
 202   *(value.v_pointer) = event_hook;
 203
 204   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 205       LTTV_POINTER, &value));
 206   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 207   lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
 208 }
 209
 210 static void destroy()
 211 {
 212   guint i, nb;
 213
 214   LttvTrace *trace;
 215
 216   g_info("Destroy batchAnalysis.c");
 217
 218   lttv_option_remove("trace");
 219   lttv_option_remove("stats");
 220
 221   lttv_hooks_destroy(before_traceset);
 222   lttv_hooks_destroy(after_traceset);
 223   lttv_hooks_destroy(before_trace);
 224   lttv_hooks_destroy(after_trace);
 225   lttv_hooks_destroy(before_tracefile);
 226   lttv_hooks_destroy(after_tracefile);
 227   //lttv_hooks_destroy(before_event);
 228   //lttv_hooks_destroy(after_event);
 229   lttv_hooks_destroy(event_hook);
 230   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 231
 232   nb = lttv_traceset_number(traceset);
 233   for(i = 0 ; i < nb ; i++) {
 234     trace = lttv_traceset_get(traceset, i);
 235     ltt_trace_close(lttv_trace(trace));
 236     /* This will be done by lttv_traceset_destroy */
 237     //lttv_trace_destroy(trace);
 238   }
 239
 240   lttv_traceset_destroy(traceset);
 241 }
 242
 243 LTTV_MODULE("batchAnalysis", "Batch processing of a trace", \
 244     "Run through a trace calling all the registered hooks", \
 245     init, destroy, "state", "stats", "option","textFilter")