예제 #1
0
파일: symtable.c 프로젝트: 7kbird/chrome
void XRaySymbolPoolFree(struct XRaySymbolPool* pool) {
  struct XRaySymbolPoolNode* n = pool->head;
  while (NULL != n) {
    struct XRaySymbolPoolNode* c = n;
    n = n->next;
    XRayFree(c);
  }
  XRayFree(pool);
}
예제 #2
0
파일: symtable.c 프로젝트: 7kbird/chrome
/* Frees a symbol table. */
void XRaySymbolTableFree(struct XRaySymbolTable* symtab) {
  XRayStringPoolFree(symtab->string_pool);
  XRaySymbolPoolFree(symtab->symbol_pool);
  XRayHashTableFree(symtab->hash_table);
  symtab->num_symbols = 0;
  XRayFree(symtab);
}
예제 #3
0
/* re-inserts all the elements into the new table */
void XRayHashTableGrow(struct XRayHashTable *table) {
  struct XRayHashTableEntry *old_array = table->array;
  int old_size = table->size;
  int new_size = old_size * 2;
  int i;
  printf("XRay: Growing a hash table...\n");
  XRayHashTableInit(table, new_size);
  for (i = 0; i < old_size; ++i) {
    void *data = old_array[i].data;
    if (NULL != data) {
      uint32_t key = old_array[i].key;
      XRayHashTableInsert(table, data, key);
    }
  }
  XRayFree(old_array);
}
예제 #4
0
void XRayBrowserTraceReport(struct XRayTraceCapture* capture) {

  const void* cat_enabled = ppb_trace_event_interface->GetCategoryEnabled(
      "xray");
  struct XRaySymbolTable* symbols = XRayGetSymbolTable(capture);

  int32_t thread_id = XRayGetSavedThreadID(capture);

  int head = XRayFrameGetHead(capture);
  int frame = XRayFrameGetTail(capture);
  while(frame != head) {

    struct XRayTimestampPair start_time = XRayFrameGetStartTimestampPair(
        capture, frame);
    struct XRayTimestampPair end_time = XRayFrameGetEndTimestampPair(
        capture, frame);

    double pdiff = (end_time.pepper - start_time.pepper);
    double odiff = (end_time.xray - start_time.xray);
    double scale_a = pdiff / odiff;
    double scale_b = ((double)end_time.pepper) - (scale_a * end_time.xray);
    printf("Xray timestamp calibration frame %d: %f %f\n",
        frame, scale_a, scale_b);

    int start = XRayFrameGetTraceStartIndex(capture, frame);
    int end = XRayFrameGetTraceEndIndex(capture, frame);

    struct XRayTraceBufferEntry** stack_base = XRayMalloc(
      sizeof(struct XRayTraceBufferEntry*) * (XRAY_TRACE_STACK_SIZE + 1));
    struct XRayTraceBufferEntry** stack_top = stack_base;
    *stack_top = NULL;

    uint32_t num_args = 0;
    const char* arg_names[] = {"annotation"};
    uint8_t arg_types[] = {TRACE_VALUE_TYPE_COPY_STRING};
    uint64_t arg_values[] = {0};
    char annotation[XRAY_TRACE_ANNOTATION_LENGTH];

    int i;
    for(i = start; i != end; i = XRayTraceNextEntry(capture, i)) {
      if (XRayTraceIsAnnotation(capture, i)) {
        continue;
      }

      uint32_t depth = XRAY_EXTRACT_DEPTH(
          XRayTraceGetEntry(capture, i)->depth_addr);

      while(*stack_top &&
          XRAY_EXTRACT_DEPTH((*stack_top)->depth_addr) >= depth) {
        struct XRayTraceBufferEntry* e = *(stack_top--);
        ppb_trace_event_interface->AddTraceEventWithThreadIdAndTimestamp(
            'E', cat_enabled,
            XRayGetName(symbols, e),
            0, thread_id,
            (scale_a * e->end_tick) + scale_b,
            0, NULL, NULL, NULL, 0
        );
      }

      num_args = 0;
      struct XRayTraceBufferEntry* e = XRayTraceGetEntry(capture, i);
      uint32_t annotation_index = e->annotation_index;
      if (annotation_index) {
        XRayTraceCopyToString(capture, annotation_index, annotation);

        union TraceValue val;
        val.as_string = (const char*)annotation;

        arg_values[0] = val.as_uint;
        num_args = 1;
      }

      ppb_trace_event_interface->AddTraceEventWithThreadIdAndTimestamp(
          'B', cat_enabled,
          XRayGetName(symbols, e),
          0, thread_id,
          (scale_a * e->start_tick) + scale_b,
          num_args, arg_names, arg_types, arg_values, 0
      );

      *(++stack_top) = e;
    }

    while(*stack_top) {
      struct XRayTraceBufferEntry* e = *(stack_top--);
      ppb_trace_event_interface->AddTraceEventWithThreadIdAndTimestamp(
          'E', cat_enabled,
          XRayGetName(symbols, e),
          0, thread_id,
          (scale_a * e->end_tick) + scale_b,
          0, NULL, NULL, NULL, 0
      );
    }

    frame = XRayFrameGetNext(capture, frame);
    XRayFree(stack_base);
  }
}