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/**
* Copyright (c) 2013, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "utils/threads/thread_manager.h"
#include <sstream>
#if defined(OS_LINUX)
#include <sys/syscall.h>
#include <unistd.h>
#endif
namespace threads {
namespace impl {
using namespace std;
using namespace sync_primitives;
namespace {
const char* kUnknownName = "UnnamedThread";
log4cxx::LoggerPtr g_logger =
log4cxx::LoggerPtr(log4cxx::Logger::getLogger("Utils"));
} // namespace
UnnamedThreadRegistry::UnnamedThreadRegistry() {
}
UnnamedThreadRegistry::~UnnamedThreadRegistry() {
}
std::string UnnamedThreadRegistry::GetUniqueName(PlatformThreadHandle id) {
AutoLock auto_lock(state_lock_);
IdNameMap::iterator found = id_number_.find(id);
if (found != id_number_.end()) {
return found->second;
} else {
++last_thread_number_;
std::stringstream namestream;
namestream<<kUnknownName<<last_thread_number_;
return id_number_[id] = namestream.str();
}
}
ThreadManager::ThreadManager() {
names_.insert(kUnknownName);
}
ThreadManager::~ThreadManager() {
}
void ThreadManager::RegisterName(PlatformThreadHandle id, const string& name) {
AutoLock auto_lock(state_lock_);
if (names_.count(name) == 0) {
names_.insert(name);
pair<IdNamesMap::iterator, bool> inserted =
id_names_.insert(make_pair(id, name));
if (!inserted.second) {
LOG4CXX_ERROR(g_logger, "Trying to register thread name " << name
<<", but it is already registered with name "
<<inserted.first->second);
}
} else {
LOG4CXX_ERROR(g_logger, "Ignoring duplicate thread name: " + name);
}
}
string ThreadManager::GetName(PlatformThreadHandle id) const {
AutoLock auto_lock(state_lock_);
IdNamesMap::const_iterator found = id_names_.find(id);
if (found != id_names_.end()) {
return found->second;
} else {
LOG4CXX_WARN(g_logger, "Thread doesn't have associated name");
return unnamed_thread_namer_.GetUniqueName(id);
}
}
void ThreadManager::Unregister(PlatformThreadHandle id) {
AutoLock auto_lock(state_lock_);
string name = id_names_[id];
names_.erase(name);
id_names_.erase(id);
}
} // namespace impl
} // namespace threads
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