ltt/branches/poly/lttv/batchAnalysis.c

   1 /* This module inserts a hook in the program main loop. This hook processes
   2    all the events in the main tracefile. */
   3
   4
   5 #include <lttv/lttv.h>
   6 #include <lttv/attribute.h>
   7 #include <lttv/hook.h>
   8 #include <lttv/option.h>
   9 #include <lttv/module.h>
  10 #include <lttv/processTrace.h>
  11 #include <lttv/state.h>
  12 #include <lttv/stats.h>
  13
  14 static LttvTraceset *traceset;
  15
  16 static LttvHooks
  17   *before_traceset,
  18   *after_traceset,
  19   *before_trace,
  20   *after_trace,
  21   *before_tracefile,
  22   *after_tracefile,
  23   *before_event,
  24   *after_event,
  25   *main_hooks;
  26
  27 static char *a_trace;
  28
  29 static gboolean a_stats;
  30
  31 void lttv_trace_option(void *hook_data)
  32 {
  33   LttTrace *trace;
  34
  35   trace = ltt_trace_open(a_trace);
  36   if(trace == NULL) g_critical("cannot open trace %s", a_trace);
  37   lttv_traceset_add(traceset, lttv_trace_new(trace));
  38 }
  39
  40
  41 static gboolean process_traceset(void *hook_data, void *call_data)
  42 {
  43   LttvTracesetStats *tscs;
  44
  45   LttvTracesetContext *tc;
  46
  47   LttTime start, end;
  48
  49   g_info("BatchAnalysis begin process traceset");
  50
  51   tscs = g_object_new(LTTV_TRACESET_STATS_TYPE, NULL);
  52   tc = &tscs->parent.parent;
  53
  54   g_info("BatchAnalysis initialize context");
  55
  56   lttv_context_init(tc, traceset);
  57   lttv_state_add_event_hooks(&tscs->parent);
  58   if(a_stats) lttv_stats_add_event_hooks(tscs);
  59
  60   lttv_traceset_context_add_hooks(tc,
  61   before_traceset, after_traceset, NULL, before_trace, after_trace,
  62   NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
  63
  64   start.tv_sec = 0;
  65   start.tv_nsec = 0;
  66   end.tv_sec = G_MAXULONG;
  67   end.tv_nsec = G_MAXULONG;
  68
  69   g_info("BatchAnalysis process traceset");
  70
  71   lttv_process_traceset_seek_time(tc, start);
  72   lttv_process_traceset(tc, end, G_MAXULONG);
  73
  74   g_info("BatchAnalysis destroy context");
  75
  76   lttv_traceset_context_remove_hooks(tc,
  77   before_traceset, after_traceset, NULL, before_trace, after_trace,
  78   NULL, before_tracefile, after_tracefile, NULL, before_event, after_event);
  79   lttv_state_remove_event_hooks(&tscs->parent);
  80   if(a_stats) lttv_stats_remove_event_hooks(tscs);
  81   lttv_context_fini(tc);
  82   g_object_unref(tscs);
  83
  84   g_info("BatchAnalysis end process traceset");
  85 }
  86
  87
  88 G_MODULE_EXPORT void init(LttvModule *self, int argc, char **argv)
  89 {
  90   LttvAttributeValue value;
  91
  92   LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
  93
  94   g_info("Init batchAnalysis.c");
  95
  96   lttv_option_add("trace", 't',
  97       "add a trace to the trace set to analyse",
  98       "pathname of the directory containing the trace",
  99       LTTV_OPT_STRING, &a_trace, lttv_trace_option, NULL);
 100
 101   a_stats = FALSE;
 102   lttv_option_add("stats", 's',
 103       "write the traceset and trace statistics",
 104       "",
 105       LTTV_OPT_NONE, &a_stats, NULL, NULL);
 106
 107
 108   traceset = lttv_traceset_new();
 109
 110   before_traceset = lttv_hooks_new();
 111   after_traceset = lttv_hooks_new();
 112   before_trace = lttv_hooks_new();
 113   after_trace = lttv_hooks_new();
 114   before_tracefile = lttv_hooks_new();
 115   after_tracefile = lttv_hooks_new();
 116   before_event = lttv_hooks_new();
 117   after_event = lttv_hooks_new();
 118
 119   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before",
 120       LTTV_POINTER, &value));
 121   *(value.v_pointer) = before_traceset;
 122   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after",
 123       LTTV_POINTER, &value));
 124   *(value.v_pointer) = after_traceset;
 125   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before",
 126       LTTV_POINTER, &value));
 127   *(value.v_pointer) = before_trace;
 128   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/after",
 129       LTTV_POINTER, &value));
 130   *(value.v_pointer) = after_trace;
 131   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/before",
 132       LTTV_POINTER, &value));
 133   *(value.v_pointer) = before_tracefile;
 134   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/tracefile/after",
 135       LTTV_POINTER, &value));
 136   *(value.v_pointer) = after_tracefile;
 137   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/before",
 138       LTTV_POINTER, &value));
 139   *(value.v_pointer) = before_event;
 140   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event/after",
 141       LTTV_POINTER, &value));
 142   *(value.v_pointer) = after_event;
 143
 144   g_assert(lttv_iattribute_find_by_path(attributes, "hooks/main/before",
 145       LTTV_POINTER, &value));
 146   g_assert((main_hooks = *(value.v_pointer)) != NULL);
 147   lttv_hooks_add(main_hooks, process_traceset, NULL);
 148 }
 149
 150
 151 G_MODULE_EXPORT void destroy()
 152 {
 153   guint i, nb;
 154
 155   LttvTrace *trace;
 156
 157   g_info("Destroy batchAnalysis.c");
 158
 159   lttv_option_remove("trace");
 160   lttv_option_remove("stats");
 161
 162   lttv_hooks_destroy(before_traceset);
 163   lttv_hooks_destroy(after_traceset);
 164   lttv_hooks_destroy(before_trace);
 165   lttv_hooks_destroy(after_trace);
 166   lttv_hooks_destroy(before_tracefile);
 167   lttv_hooks_destroy(after_tracefile);
 168   lttv_hooks_destroy(before_event);
 169   lttv_hooks_destroy(after_event);
 170   lttv_hooks_remove_data(main_hooks, process_traceset, NULL);
 171
 172   nb = lttv_traceset_number(traceset);
 173   for(i = 0 ; i < nb ; i++) {
 174     trace = lttv_traceset_get(traceset, i);
 175     ltt_trace_close(lttv_trace(trace));
 176     lttv_trace_destroy(trace);
 177   }
 178
 179   lttv_traceset_destroy(traceset);
 180 }
 181