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Rename beast sources for consistency

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This commit is contained in:
Vinnie Falco
2013-09-19 06:33:29 -07:00
parent 4e59ab2261
commit 34fffca202
256 changed files with 777 additions and 762 deletions
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245
modules/beast_core/thread/DeadlineTimer.cpp Normal file
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//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
class DeadlineTimer::Manager
: public LeakChecked <Manager>
, protected Thread
{
private:
typedef CriticalSection LockType;
typedef List <DeadlineTimer> Items;
public:
Manager () : Thread ("DeadlineTimer::Manager")
{
startThread ();
}
~Manager ()
{
signalThreadShouldExit ();
notify ();
waitForThreadToExit ();
bassert (m_items.empty ());
}
// Okay to call on an active timer.
// However, an extra notification may still happen due to concurrency.
//
void activate (DeadlineTimer& timer, double secondsRecurring, Time const& when)
{
bassert (secondsRecurring >= 0);
LockType::ScopedLockType lock (m_mutex);
if (timer.m_isActive)
{
m_items.erase (m_items.iterator_to (timer));
timer.m_isActive = false;
}
timer.m_secondsRecurring = secondsRecurring;
timer.m_notificationTime = when;
insertSorted (timer);
timer.m_isActive = true;
notify ();
}
// Okay to call this on an inactive timer.
// This can happen naturally based on concurrency.
//
void deactivate (DeadlineTimer& timer)
{
LockType::ScopedLockType lock (m_mutex);
if (timer.m_isActive)
{
m_items.erase (m_items.iterator_to (timer));
timer.m_isActive = false;
notify ();
}
}
void run ()
{
while (! threadShouldExit ())
{
Time const currentTime = Time::getCurrentTime ();
double seconds (0);
DeadlineTimer* timer (nullptr);
{
LockType::ScopedLockType lock (m_mutex);
// See if a timer expired
if (! m_items.empty ())
{
timer = &m_items.front ();
// Has this timer expired?
if (timer->m_notificationTime <= currentTime)
{
// Expired, remove it from the list.
bassert (timer->m_isActive);
m_items.pop_front ();
// Is the timer recurring?
if (timer->m_secondsRecurring > 0)
{
// Yes so set the timer again.
timer->m_notificationTime =
currentTime + RelativeTime (timer->m_secondsRecurring);
// Put it back into the list as active
insertSorted (*timer);
}
else
{
// Not a recurring timer, deactivate it.
timer->m_isActive = false;
}
timer->m_listener->onDeadlineTimer (*timer);
// re-loop
seconds = -1;
}
else
{
seconds = (
timer->m_notificationTime - currentTime).inSeconds ();
// Can't be zero and come into the else clause.
bassert (seconds != 0);
// Don't call the listener
timer = nullptr;
}
}
}
// Note that we have released the lock here.
if (seconds > 0)
{
// Wait until interrupt or next timer.
//
int const milliSeconds (std::max (
static_cast <int> (seconds * 1000 + 0.5), 1));
bassert (milliSeconds > 0);
wait (milliSeconds);
}
else if (seconds == 0)
{
// Wait until interrupt
//
wait ();
}
else
{
// Do not wait. This can happen if the recurring timer duration
// is extremely short, or if a listener wastes too much time in
// their callback.
}
}
}
// Caller is responsible for locking
void insertSorted (DeadlineTimer& timer)
{
if (! m_items.empty ())
{
Items::iterator before = m_items.begin ();
for (;;)
{
if (before->m_notificationTime >= timer.m_notificationTime)
{
m_items.insert (before, timer);
break;
}
++before;
if (before == m_items.end ())
{
m_items.push_back (timer);
break;
}
}
}
else
{
m_items.push_back (timer);
}
}
private:
CriticalSection m_mutex;
Items m_items;
};
//------------------------------------------------------------------------------
DeadlineTimer::DeadlineTimer (Listener* listener)
: m_listener (listener)
, m_manager (SharedSingleton <Manager>::getInstance ())
, m_isActive (false)
{
}
DeadlineTimer::~DeadlineTimer ()
{
m_manager->deactivate (*this);
}
void DeadlineTimer::cancel ()
{
m_manager->deactivate (*this);
}
void DeadlineTimer::setExpiration (double secondsUntilDeadline)
{
bassert (secondsUntilDeadline != 0);
Time const when = Time::getCurrentTime () + RelativeTime (secondsUntilDeadline);
m_manager->activate (*this, 0, when);
}
void DeadlineTimer::setRecurringExpiration (double secondsUntilDeadline)
{
bassert (secondsUntilDeadline != 0);
Time const when = Time::getCurrentTime () + RelativeTime (secondsUntilDeadline);
m_manager->activate (*this, secondsUntilDeadline, when);
}
void DeadlineTimer::setExpirationTime (Time const& when)
{
m_manager->activate (*this, 0, when);
}