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