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Header optimizations (#1684)

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Shouldn't break anything. I hope.
This commit is contained in:
Ivan 2016-04-27 01:27:24 +03:00
parent da7472fe81
commit aafcf44581
89 changed files with 2370 additions and 2348 deletions
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46
Utilities/SharedMutex.cpp
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@ -15,24 +15,6 @@ struct shared_mutex::internal
std::condition_variable ocv; // For current exclusive owner
};
shared_mutex::~shared_mutex()
{
delete m_data;
}
void shared_mutex::initialize_once()
{
if (!m_data)
{
auto ptr = new shared_mutex::internal;
if (!m_data.compare_and_swap_test(nullptr, ptr))
{
delete ptr;
}
}
}
void shared_mutex::lock_shared_hard()
{
initialize_once();
@ -81,17 +63,18 @@ void shared_mutex::unlock_shared_notify()
{
initialize_once();
// Mutex is locked for reliable notification because m_ctrl has been changed outside
std::lock_guard<std::mutex> lock(m_data->mutex);
std::unique_lock<std::mutex> lock(m_data->mutex);
if ((m_ctrl & SM_READER_MASK) == 0 && m_data->wq_size)
{
// Notify exclusive owner
lock.unlock();
m_data->ocv.notify_one();
}
else if (m_data->rq_size)
{
// Notify other readers
lock.unlock();
m_data->rcv.notify_one();
}
}
@ -141,17 +124,36 @@ void shared_mutex::unlock_notify()
{
initialize_once();
// Mutex is locked for reliable notification because m_ctrl has been changed outside
std::lock_guard<std::mutex> lock(m_data->mutex);
std::unique_lock<std::mutex> lock(m_data->mutex);
if (m_data->wq_size)
{
// Notify next exclusive owner
lock.unlock();
m_data->wcv.notify_one();
}
else if (m_data->rq_size)
{
// Notify all readers
lock.unlock();
m_data->rcv.notify_all();
}
}
void shared_mutex::initialize_once()
{
if (UNLIKELY(!m_data))
{
auto ptr = new shared_mutex::internal;
if (!m_data.compare_and_swap_test(nullptr, ptr))
{
delete ptr;
}
}
}
shared_mutex::~shared_mutex()
{
delete m_data;
}