chrome/common/trace_event_args_whitelist.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/common/trace_event_args_whitelist.h"
   6
   7 #include "base/strings/pattern.h"
   8 #include "base/strings/string_tokenizer.h"
   9 #include "base/strings/string_util.h"
  10
  11 namespace {
  12
  13 const char* const kEventArgsWhitelist[][2] = {{"toplevel", "*"},
  14                                               {"__metadata", "thread_name"},
  15                                               {NULL, NULL}};
  16
  17 }  // namespace
  18
  19 bool IsTraceEventArgsWhitelisted(const char* category_group_name,
  20                                  const char* event_name) {
  21   base::CStringTokenizer category_group_tokens(
  22       category_group_name, category_group_name + strlen(category_group_name),
  23       ",");
  24   while (category_group_tokens.GetNext()) {
  25     const std::string& category_group_token = category_group_tokens.token();
  26     for (int i = 0; kEventArgsWhitelist[i][0] != NULL; ++i) {
  27       DCHECK(kEventArgsWhitelist[i][1]);
  28
  29       if (base::MatchPattern(category_group_token.c_str(),
  30                              kEventArgsWhitelist[i][0]) &&
  31           base::MatchPattern(event_name, kEventArgsWhitelist[i][1])) {
  32         return true;
  33       }
  34     }
  35   }
  36
  37   return false;
  38 }