lttv/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
  78   g_info("BatchAnalysis begin process traceset");
  79
  80   if (a_stats) {
  81     tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
  82     tss = &tscs->parent;
  83   } else {
  84     tss = g_object_new(LTTV_TRACESET_STATE_TYPE, NULL);
  85   }
  86   tc = &tss->parent;
  87
  88   g_info("BatchAnalysis initialize context");
  89
  90   lttv_context_init(tc, traceset);
  91   lttv_state_add_event_hooks(tc);
  92   if(a_stats) lttv_stats_add_event_hooks(tscs);
  93
  94   g_assert(lttv_iattribute_find_by_path(attributes, "filter/expression",
  95       LTTV_POINTER, &value_expression));
  96
  97   g_assert(lttv_iattribute_find_by_path(attributes, "filter/lttv_filter",
  98       LTTV_POINTER, &value_filter));
  99
 100   *(value_filter.v_pointer) = lttv_filter_new();
 101   //g_debug("Filter string: %s",((GString*)*(value_expression.v_pointer))->str);
 102
 103   lttv_filter_append_expression(*(value_filter.v_pointer),((GString*)*(value_expression.v_pointer))->str);
 104
 105   //lttv_traceset_context_add_hooks(tc,
 106   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 107   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 108   lttv_process_traceset_begin(tc,
 109                               before_traceset,
 110                               before_trace,
 111                               before_tracefile,
 112                               event_hook,
 113                               NULL);
 114
 115   start.tv_sec = 0;
 116   start.tv_nsec = 0;
 117   end.tv_sec = G_MAXULONG;
 118   end.tv_nsec = G_MAXULONG;
 119
 120   g_info("BatchAnalysis process traceset");
 121
 122   lttv_process_traceset_seek_time(tc, start);
 123   lttv_process_traceset_middle(tc,
 124                                end,
 125                                G_MAXULONG,
 126                                NULL);
 127
 128
 129   //lttv_traceset_context_remove_hooks(tc,
 130   //before_traceset, after_traceset, NULL, before_trace, after_trace,
 131   //NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
 132   lttv_process_traceset_end(tc,
 133                             after_traceset,
 134                             after_trace,
 135                             after_tracefile,
 136                             event_hook,
 137                             NULL);
 138
 139   g_info("BatchAnalysis destroy context");
 140
 141   lttv_filter_destroy(*(value_filter.v_pointer));
 142   lttv_state_remove_event_hooks(tss);
 143   if(a_stats) lttv_stats_remove_event_hooks(tscs);
 144   lttv_context_fini(tc);
 145   if (a_stats)
 146     g_object_unref(tscs);
 147   else
 148     g_object_unref(tss);
 149
 150   g_info("BatchAnalysis end process traceset");
 151   return FALSE;
 152 }
 153
 154
 155 static void init()
 156 {
 157   LttvAttributeValue value;
 158
 159   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
 160
 161   g_info("Init batchAnalysis.c");
 162
 163   lttv_option_add("trace", 't',
 164       "add a trace to the trace set to analyse",
 165       "pathname of the directory containing the trace",
 166       LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);
 167
 168   a_stats = FALSE;
 169   lttv_option_add("stats", 's',
 170       "write the traceset and trace statistics",
 171       "",
 172       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 173
 174
 175   traceset = lttv_traceset_new();
 176
 177   before_traceset = lttv_hooks_new();
 178   after_traceset = lttv_hooks_new();
 179   before_trace = lttv_hooks_new();
 180   after_trace = lttv_hooks_new();
 181   before_tracefile = lttv_hooks_new();
 182   after_tracefile = lttv_hooks_new();
 183   //before_event = lttv_hooks_new();
 184   //after_event = lttv_hooks_new();
 185   event_hook = lttv_hooks_new();
 186
 187   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 188       LTTV_POINTER, &value));
 189   *(value.v_pointer) = before_traceset;
 190   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 191       LTTV_POINTER, &value));
 192   *(value.v_pointer) = after_traceset;
 193   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 194       LTTV_POINTER, &value));
 195   *(value.v_pointer) = before_trace;
 196   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 197       LTTV_POINTER, &value));
 198   *(value.v_pointer) = after_trace;
 199   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 200       LTTV_POINTER, &value));
 201   *(value.v_pointer) = before_tracefile;
 202   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 203       LTTV_POINTER, &value));
 204   *(value.v_pointer) = after_tracefile;
 205   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 206   //    LTTV_POINTER, &value));
 207   //*(value.v_pointer) = before_event;
 208   //g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 209   //    LTTV_POINTER, &value));
 210   //*(value.v_pointer) = after_event;
 211   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event",
 212       LTTV_POINTER, &value));
 213   *(value.v_pointer) = event_hook;
 214
 215   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 216       LTTV_POINTER, &value));
 217   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 218   lttv_hooks_add(main_hooks, process_traceset, NULL, LTTV_PRIO_DEFAULT);
 219 }
 220
 221 static void destroy()
 222 {
 223   guint i, nb;
 224
 225   LttvTrace *trace;
 226
 227   g_info("Destroy batchAnalysis.c");
 228
 229   lttv_option_remove("trace");
 230   lttv_option_remove("stats");
 231
 232   lttv_hooks_destroy(before_traceset);
 233   lttv_hooks_destroy(after_traceset);
 234   lttv_hooks_destroy(before_trace);
 235   lttv_hooks_destroy(after_trace);
 236   lttv_hooks_destroy(before_tracefile);
 237   lttv_hooks_destroy(after_tracefile);
 238   //lttv_hooks_destroy(before_event);
 239   //lttv_hooks_destroy(after_event);
 240   lttv_hooks_destroy(event_hook);
 241   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 242
 243   nb = lttv_traceset_number(traceset);
 244   for(i = 0 ; i < nb ; i++) {
 245     trace = lttv_traceset_get(traceset, i);
 246     ltt_trace_close(lttv_trace(trace));
 247     /* This will be done by lttv_traceset_destroy */
 248     //lttv_trace_destroy(trace);
 249   }
 250
 251   lttv_traceset_destroy(traceset);
 252 }
 253
 254 LTTV_MODULE("batchAnalysis", "Batch processing of a trace", \
 255     "Run through a trace calling all the registered hooks", \
 256     init, destroy, "state", "stats", "option","textFilter")