void signal_all(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
state_ |= 1;
::pthread_cond_broadcast(&cond_); // Ignore EINVAL.
}
bool wait_for_usec(Lock& lock, long usec)
{
ASIO_ASSERT(lock.locked());
if ((state_ & 1) == 0)
{
state_ += 2;
timespec ts;
#if (defined(__MACH__) && defined(__APPLE__)) \
|| (defined(__ANDROID__) && (__ANDROID_API__ < 21))
ts.tv_sec = usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
::pthread_cond_timedwait_relative_np(
&cond_, &lock.mutex().mutex_, &ts); // Ignore EINVAL.
#else // (defined(__MACH__) && defined(__APPLE__))
// || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
if (::clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
{
ts.tv_sec += usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
ts.tv_sec += ts.tv_nsec / 1000000000;
ts.tv_nsec = ts.tv_nsec % 1000000000;
::pthread_cond_timedwait(&cond_,
&lock.mutex().mutex_, &ts); // Ignore EINVAL.
}
#endif // (defined(__MACH__) && defined(__APPLE__))
// || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
state_ -= 2;
}
return (state_ & 1) != 0;
}
void wait(Lock& lock)
{
ASIO_ASSERT(lock.locked());
lock.unlock();
::WaitForSingleObject(event_, INFINITE);
lock.lock();
}
void clear(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
::ResetEvent(events_[0]);
state_ &= ~std::size_t(1);
}
void signal_all(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
state_ |= 1;
::SetEvent(events_[0]);
}
void signal_all(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
state_ |= 1;
cond_.notify_all();
}
// Erase an entry from the map.
void erase(iterator it)
{
ASIO_ASSERT(it != values_.end());
ASIO_ASSERT(num_buckets_ != 0);
size_t bucket = calculate_hash_value(it->first) % num_buckets_;
bool is_first = (it == buckets_[bucket].first);
bool is_last = (it == buckets_[bucket].last);
if (is_first && is_last)
buckets_[bucket].first = buckets_[bucket].last = values_.end();
else if (is_first)
++buckets_[bucket].first;
else if (is_last)
--buckets_[bucket].last;
values_erase(it);
--size_;
}
void unlock_and_signal_one(Lock& lock)
{
ASIO_ASSERT(lock.locked());
state_ |= 1;
bool have_waiters = (state_ > 1);
lock.unlock();
if (have_waiters)
::SetEvent(events_[1]);
}
void unlock_and_signal_one(Lock& lock)
{
ASIO_ASSERT(lock.locked());
state_ |= 1;
bool have_waiters = (state_ > 1);
lock.unlock();
if (have_waiters)
cond_.notify_one();
}
void unlock_and_signal_one(Lock& lock)
{
ASIO_ASSERT(lock.locked());
state_ |= 1;
bool have_waiters = (state_ > 1);
lock.unlock();
if (have_waiters)
::pthread_cond_signal(&cond_); // Ignore EINVAL.
}
void wait(Lock& lock)
{
ASIO_ASSERT(lock.locked());
unique_lock_adapter u_lock(lock);
while ((state_ & 1) == 0)
{
waiter w(state_);
cond_.wait(u_lock.unique_lock_);
}
}
void wait(Lock& lock)
{
ASIO_ASSERT(lock.locked());
while ((state_ & 1) == 0)
{
state_ += 2;
::pthread_cond_wait(&cond_, &lock.mutex().mutex_); // Ignore EINVAL.
state_ -= 2;
}
}
bool wait_for_usec(Lock& lock, long usec)
{
ASIO_ASSERT(lock.locked());
unique_lock_adapter u_lock(lock);
if ((state_ & 1) == 0)
{
waiter w(state_);
cond_.wait_for(u_lock.unique_lock_, std::chrono::microseconds(usec));
}
return (state_ & 1) != 0;
}
bool maybe_unlock_and_signal_one(Lock& lock)
{
ASIO_ASSERT(lock.locked());
state_ |= 1;
if (state_ > 1)
{
lock.unlock();
cond_.notify_one();
return true;
}
return false;
}
bool maybe_unlock_and_signal_one(Lock& lock)
{
ASIO_ASSERT(lock.locked());
state_ |= 1;
if (state_ > 1)
{
lock.unlock();
::SetEvent(events_[1]);
return true;
}
return false;
}
bool maybe_unlock_and_signal_one(Lock& lock)
{
ASIO_ASSERT(lock.locked());
state_ |= 1;
if (state_ > 1)
{
lock.unlock();
::pthread_cond_signal(&cond_); // Ignore EINVAL.
return true;
}
return false;
}
void wait(Lock& lock)
{
ASIO_ASSERT(lock.locked());
while ((state_ & 1) == 0)
{
state_ += 2;
lock.unlock();
#if defined(ASIO_WINDOWS_APP)
::WaitForMultipleObjectsEx(2, events_, false, INFINITE, false);
#else // defined(ASIO_WINDOWS_APP)
::WaitForMultipleObjects(2, events_, false, INFINITE);
#endif // defined(ASIO_WINDOWS_APP)
lock.lock();
state_ -= 2;
}
}
bool wait_for_usec(Lock& lock, long usec)
{
ASIO_ASSERT(lock.locked());
if ((state_ & 1) == 0)
{
state_ += 2;
lock.unlock();
DWORD msec = usec > 0 ? (usec < 1000 ? 1 : usec / 1000) : 0;
#if defined(ASIO_WINDOWS_APP)
::WaitForMultipleObjectsEx(2, events_, false, msec, false);
#else // defined(ASIO_WINDOWS_APP)
::WaitForMultipleObjects(2, events_, false, msec);
#endif // defined(ASIO_WINDOWS_APP)
lock.lock();
state_ -= 2;
}
return (state_ & 1) != 0;
}
// Re-initialise the hash from the values already contained in the list.
void rehash(std::size_t num_buckets)
{
if (num_buckets == num_buckets_)
return;
num_buckets_ = num_buckets;
ASIO_ASSERT(num_buckets_ != 0);
iterator end_iter = values_.end();
// Update number of buckets and initialise all buckets to empty.
bucket_type* tmp = new bucket_type[num_buckets_];
delete[] buckets_;
buckets_ = tmp;
for (std::size_t i = 0; i < num_buckets_; ++i)
buckets_[i].first = buckets_[i].last = end_iter;
// Put all values back into the hash.
iterator iter = values_.begin();
while (iter != end_iter)
{
std::size_t bucket = calculate_hash_value(iter->first) % num_buckets_;
if (buckets_[bucket].last == end_iter)
{
buckets_[bucket].first = buckets_[bucket].last = iter++;
}
else if (++buckets_[bucket].last == iter)
{
++iter;
}
else
{
values_.splice(buckets_[bucket].last, values_, iter++);
--buckets_[bucket].last;
}
}
}
void signal(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
::SetEvent(event_);
}
void clear(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
::ResetEvent(event_);
}
void signal_and_unlock(Lock& lock)
{
ASIO_ASSERT(lock.locked());
lock.unlock();
::SetEvent(event_);
}
void clear(Lock& lock)
{
ASIO_ASSERT(lock.locked());
(void)lock;
state_ &= ~std::size_t(1);
}