113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "base/threading/thread_id_name_manager.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "base/logging.h"
|
|
#include "base/memory/singleton.h"
|
|
#include "base/strings/string_util.h"
|
|
|
|
namespace base {
|
|
namespace {
|
|
|
|
static const char kDefaultName[] = "";
|
|
static std::string* g_default_name;
|
|
|
|
}
|
|
|
|
ThreadIdNameManager::ThreadIdNameManager()
|
|
: main_process_id_(kInvalidThreadId) {
|
|
g_default_name = new std::string(kDefaultName);
|
|
|
|
AutoLock locked(lock_);
|
|
name_to_interned_name_[kDefaultName] = g_default_name;
|
|
}
|
|
|
|
ThreadIdNameManager::~ThreadIdNameManager() {
|
|
}
|
|
|
|
ThreadIdNameManager* ThreadIdNameManager::GetInstance() {
|
|
return Singleton<ThreadIdNameManager,
|
|
LeakySingletonTraits<ThreadIdNameManager> >::get();
|
|
}
|
|
|
|
const char* ThreadIdNameManager::GetDefaultInternedString() {
|
|
return g_default_name->c_str();
|
|
}
|
|
|
|
void ThreadIdNameManager::RegisterThread(PlatformThreadHandle::Handle handle,
|
|
PlatformThreadId id) {
|
|
AutoLock locked(lock_);
|
|
thread_id_to_handle_[id] = handle;
|
|
thread_handle_to_interned_name_[handle] =
|
|
name_to_interned_name_[kDefaultName];
|
|
}
|
|
|
|
void ThreadIdNameManager::SetName(PlatformThreadId id, const char* name) {
|
|
std::string str_name(name);
|
|
|
|
AutoLock locked(lock_);
|
|
NameToInternedNameMap::iterator iter = name_to_interned_name_.find(str_name);
|
|
std::string* leaked_str = NULL;
|
|
if (iter != name_to_interned_name_.end()) {
|
|
leaked_str = iter->second;
|
|
} else {
|
|
leaked_str = new std::string(str_name);
|
|
name_to_interned_name_[str_name] = leaked_str;
|
|
}
|
|
|
|
ThreadIdToHandleMap::iterator id_to_handle_iter =
|
|
thread_id_to_handle_.find(id);
|
|
|
|
// The main thread of a process will not be created as a Thread object which
|
|
// means there is no PlatformThreadHandler registered.
|
|
if (id_to_handle_iter == thread_id_to_handle_.end()) {
|
|
main_process_name_ = leaked_str;
|
|
main_process_id_ = id;
|
|
return;
|
|
}
|
|
thread_handle_to_interned_name_[id_to_handle_iter->second] = leaked_str;
|
|
}
|
|
|
|
const char* ThreadIdNameManager::GetName(PlatformThreadId id) {
|
|
AutoLock locked(lock_);
|
|
|
|
if (id == main_process_id_)
|
|
return main_process_name_->c_str();
|
|
|
|
ThreadIdToHandleMap::iterator id_to_handle_iter =
|
|
thread_id_to_handle_.find(id);
|
|
if (id_to_handle_iter == thread_id_to_handle_.end())
|
|
return name_to_interned_name_[kDefaultName]->c_str();
|
|
|
|
ThreadHandleToInternedNameMap::iterator handle_to_name_iter =
|
|
thread_handle_to_interned_name_.find(id_to_handle_iter->second);
|
|
return handle_to_name_iter->second->c_str();
|
|
}
|
|
|
|
void ThreadIdNameManager::RemoveName(PlatformThreadHandle::Handle handle,
|
|
PlatformThreadId id) {
|
|
AutoLock locked(lock_);
|
|
ThreadHandleToInternedNameMap::iterator handle_to_name_iter =
|
|
thread_handle_to_interned_name_.find(handle);
|
|
|
|
DCHECK(handle_to_name_iter != thread_handle_to_interned_name_.end());
|
|
thread_handle_to_interned_name_.erase(handle_to_name_iter);
|
|
|
|
ThreadIdToHandleMap::iterator id_to_handle_iter =
|
|
thread_id_to_handle_.find(id);
|
|
DCHECK((id_to_handle_iter!= thread_id_to_handle_.end()));
|
|
// The given |id| may have been re-used by the system. Make sure the
|
|
// mapping points to the provided |handle| before removal.
|
|
if (id_to_handle_iter->second != handle)
|
|
return;
|
|
|
|
thread_id_to_handle_.erase(id_to_handle_iter);
|
|
}
|
|
|
|
} // namespace base
|