bool mutex::timed_lock(::boost::system_time const& wait_until)
{
HPX_ITT_SYNC_PREPARE(this);
if (try_lock_internal()) {
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
return true;
}
boost::uint32_t old_count =
active_count_.load(boost::memory_order_acquire);
mark_waiting_and_try_lock(old_count);
if (old_count & lock_flag_value)
{
// wait for lock to get available
bool lock_acquired = false;
do {
if (wait_for_single_object(wait_until))
{
// if this timed out, just return false
--active_count_;
HPX_ITT_SYNC_CANCEL(this);
return false;
}
clear_waiting_and_try_lock(old_count);
lock_acquired = !(old_count & lock_flag_value);
} while (!lock_acquired);
}
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
return true;
}
void lock(char const* description, error_code& ec = throws)
{
HPX_ASSERT(threads::get_self_ptr() != 0);
HPX_ITT_SYNC_PREPARE(this);
mutex_type::scoped_lock l(mtx_);
threads::thread_id_repr_type self_id = threads::get_self_id().get();
if(owner_id_ == self_id)
{
HPX_ITT_SYNC_CANCEL(this);
HPX_THROWS_IF(ec, deadlock,
"mutex::unlock",
"The calling thread already owns the mutex");
return;
}
if (owner_id_ != threads::invalid_thread_id_repr)
{
cond_.wait(l, ec);
if (ec) { HPX_ITT_SYNC_CANCEL(this); return; }
}
util::register_lock(this);
HPX_ITT_SYNC_ACQUIRED(this);
owner_id_ = self_id;
}
bool try_lock_until(util::steady_time_point const& abs_time,
char const* description, error_code& ec = throws)
{
HPX_ASSERT(threads::get_self_ptr() != 0);
HPX_ITT_SYNC_PREPARE(this);
mutex_type::scoped_lock l(mtx_);
threads::thread_id_repr_type self_id = threads::get_self_id().get();
if (owner_id_ != threads::invalid_thread_id_repr)
{
threads::thread_state_ex_enum const reason =
cond_.wait_until(l, abs_time, ec);
if (ec) { HPX_ITT_SYNC_CANCEL(this); return false; }
if (reason == threads::wait_signaled) //-V110
{
HPX_ITT_SYNC_CANCEL(this);
return false;
}
}
util::register_lock(this);
HPX_ITT_SYNC_ACQUIRED(this);
owner_id_ = self_id;
return true;
}
void lock()
{
HPX_ITT_SYNC_PREPARE(this);
m.lock();
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
}
void lock()
{
HPX_ITT_SYNC_PREPARE(&sp_);
sp_.lock();
HPX_ITT_SYNC_ACQUIRED(&sp_);
util::register_lock(&sp_);
}
// Note: we deliberately don't register this lock with the lock
// tracking to avoid false positives. We know that gid_types need
// to be locked while suspension.
void lock()
{
HPX_ITT_SYNC_PREPARE(this);
for (std::size_t k = 0; !acquire_lock(); ++k)
{
lcos::local::spinlock::yield(k);
}
HPX_ITT_SYNC_ACQUIRED(this);
}
void lock()
{
HPX_ITT_SYNC_PREPARE(this);
for (std::size_t k = 0; !try_lock(); ++k)
{
}
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
}
bool try_lock()
{
HPX_ITT_SYNC_PREPARE(this);
if (m.try_lock()) {
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
return true;
}
HPX_ITT_SYNC_CANCEL(this);
return false;
}
void lock()
{
HPX_ITT_SYNC_PREPARE(this);
for (std::size_t k = 0; !acquire_lock(); ++k)
{
spinlock::yield(k);
}
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
}
bool try_lock()
{
HPX_ITT_SYNC_PREPARE(this);
if (acquire_lock())
{
HPX_ITT_SYNC_ACQUIRED(this);
return true;
}
HPX_ITT_SYNC_CANCEL(this);
return false;
}
// Note: we deliberately don't register this lock with the lock
// tracking to avoid false positives. We know that gid_types need
// to be locked while suspension.
void lock()
{
HPX_ITT_SYNC_PREPARE(this);
for (std::size_t k = 0; !acquire_lock(); ++k)
{
util::detail::yield_k(k, "hpx::naming::gid_type::lock");
}
util::register_lock(this);
HPX_ITT_SYNC_ACQUIRED(this);
}
bool try_lock()
{
HPX_ITT_SYNC_PREPARE(this);
bool r = acquire_lock(); //-V707
if (r) {
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
return true;
}
HPX_ITT_SYNC_CANCEL(this);
return false;
}
bool try_lock(char const* description, error_code& ec = throws)
{
HPX_ASSERT(threads::get_self_ptr() != 0);
HPX_ITT_SYNC_PREPARE(this);
mutex_type::scoped_lock l(mtx_);
threads::thread_id_repr_type self_id = threads::get_self_id().get();
if (owner_id_ != threads::invalid_thread_id_repr)
{
HPX_ITT_SYNC_CANCEL(this);
return false;
}
util::register_lock(this);
HPX_ITT_SYNC_ACQUIRED(this);
owner_id_ = self_id;
return true;
}
bool try_lock()
{
HPX_ITT_SYNC_PREPARE(this);
#if !defined( BOOST_SP_HAS_SYNC )
boost::uint64_t r = BOOST_INTERLOCKED_EXCHANGE(&v_, 1);
BOOST_COMPILER_FENCE
#else
boost::uint64_t r = __sync_lock_test_and_set(&v_, 1);
#endif
if (r == 0) {
HPX_ITT_SYNC_ACQUIRED(this);
util::register_lock(this);
return true;
}
HPX_ITT_SYNC_CANCEL(this);
return false;
}
void lock()
{
HPX_ITT_SYNC_PREPARE(&sp_);
sp_.lock();
HPX_ITT_SYNC_ACQUIRED(&sp_);
}
