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      1 // Copyright (c) 2012 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 "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
      6 
      7 #if defined(IPC_MESSAGE_LOG_ENABLED)
      8 #define IPC_MESSAGE_MACROS_LOG_ENABLED
      9 #include "content/public/common/content_ipc_logging.h"
     10 #define IPC_LOG_TABLE_ADD_ENTRY(msg_id, logger) \
     11     content::RegisterIPCLogger(msg_id, logger)
     12 #include "content/common/all_messages.h"
     13 #endif
     14 
     15 #if defined(IPC_MESSAGE_LOG_ENABLED)
     16 
     17 #include "base/containers/hash_tables.h"
     18 #include "base/lazy_instance.h"
     19 
     20 namespace content {
     21 
     22 namespace {
     23 
     24 base::LazyInstance<base::hash_map<uint32, LogFunction> >::Leaky
     25     g_log_function_mapping = LAZY_INSTANCE_INITIALIZER;
     26 
     27 }  // namespace
     28 
     29 void RegisterIPCLogger(uint32 msg_id, LogFunction logger) {
     30   if (g_log_function_mapping == NULL)
     31     IPC::Logging::set_log_function_map(g_log_function_mapping.Pointer());
     32   g_log_function_mapping.Get()[msg_id] = logger;
     33 }
     34 
     35 }  // content
     36 
     37 #endif
     38