From 3438e5d3ddf8444f0e31009ffbe8237ef3752c22 Mon Sep 17 00:00:00 2001
From: Alexander Harkness <bearbin@gmail.com>
Date: Sun, 24 Nov 2013 14:21:13 +0000
Subject: move cryptopp into lib

---
 CryptoPP/wait.cpp | 397 ------------------------------------------------------
 1 file changed, 397 deletions(-)
 delete mode 100644 CryptoPP/wait.cpp

(limited to 'CryptoPP/wait.cpp')

diff --git a/CryptoPP/wait.cpp b/CryptoPP/wait.cpp
deleted file mode 100644
index 198785838..000000000
--- a/CryptoPP/wait.cpp
+++ /dev/null
@@ -1,397 +0,0 @@
-// wait.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "wait.h"
-#include "misc.h"
-
-#ifdef SOCKETS_AVAILABLE
-
-#ifdef USE_BERKELEY_STYLE_SOCKETS
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <unistd.h>
-#endif
-
-NAMESPACE_BEGIN(CryptoPP)
-
-unsigned int WaitObjectContainer::MaxWaitObjects()
-{
-#ifdef USE_WINDOWS_STYLE_SOCKETS
-	return MAXIMUM_WAIT_OBJECTS * (MAXIMUM_WAIT_OBJECTS-1);
-#else
-	return FD_SETSIZE;
-#endif
-}
-
-WaitObjectContainer::WaitObjectContainer(WaitObjectsTracer* tracer)
-	: m_tracer(tracer), m_eventTimer(Timer::MILLISECONDS)
-	, m_sameResultCount(0), m_noWaitTimer(Timer::MILLISECONDS)
-{
-	Clear();
-	m_eventTimer.StartTimer();
-}
-
-void WaitObjectContainer::Clear()
-{
-#ifdef USE_WINDOWS_STYLE_SOCKETS
-	m_handles.clear();
-#else
-	m_maxFd = 0;
-	FD_ZERO(&m_readfds);
-	FD_ZERO(&m_writefds);
-#endif
-	m_noWait = false;
-	m_firstEventTime = 0;
-}
-
-inline void WaitObjectContainer::SetLastResult(LastResultType result)
-{
-	if (result == m_lastResult)
-		m_sameResultCount++;
-	else
-	{
-		m_lastResult = result;
-		m_sameResultCount = 0;
-	}
-}
-
-void WaitObjectContainer::DetectNoWait(LastResultType result, CallStack const& callStack)
-{
-	if (result == m_lastResult && m_noWaitTimer.ElapsedTime() > 1000)
-	{
-		if (m_sameResultCount > m_noWaitTimer.ElapsedTime())
-		{
-			if (m_tracer)
-			{
-				std::string desc = "No wait loop detected - m_lastResult: ";
-				desc.append(IntToString(m_lastResult)).append(", call stack:");
-				for (CallStack const* cs = &callStack; cs; cs = cs->Prev())
-					desc.append("\n- ").append(cs->Format());
-				m_tracer->TraceNoWaitLoop(desc);
-			}
-			try { throw 0; } catch (...) {}		// help debugger break
-		}
-
-		m_noWaitTimer.StartTimer();
-		m_sameResultCount = 0;
-	}
-}
-
-void WaitObjectContainer::SetNoWait(CallStack const& callStack)
-{
-	DetectNoWait(LASTRESULT_NOWAIT, CallStack("WaitObjectContainer::SetNoWait()", &callStack));
-	m_noWait = true;
-}
-
-void WaitObjectContainer::ScheduleEvent(double milliseconds, CallStack const& callStack)
-{
-	if (milliseconds <= 3)
-		DetectNoWait(LASTRESULT_SCHEDULED, CallStack("WaitObjectContainer::ScheduleEvent()", &callStack));
-	double thisEventTime = m_eventTimer.ElapsedTimeAsDouble() + milliseconds;
-	if (!m_firstEventTime || thisEventTime < m_firstEventTime)
-		m_firstEventTime = thisEventTime;
-}
-
-#ifdef USE_WINDOWS_STYLE_SOCKETS
-
-struct WaitingThreadData
-{
-	bool waitingToWait, terminate;
-	HANDLE startWaiting, stopWaiting;
-	const HANDLE *waitHandles;
-	unsigned int count;
-	HANDLE threadHandle;
-	DWORD threadId;
-	DWORD* error;
-};
-
-WaitObjectContainer::~WaitObjectContainer()
-{
-	try		// don't let exceptions escape destructor
-	{
-		if (!m_threads.empty())
-		{
-			HANDLE threadHandles[MAXIMUM_WAIT_OBJECTS];
-			unsigned int i;
-			for (i=0; i<m_threads.size(); i++)
-			{
-				WaitingThreadData &thread = *m_threads[i];
-				while (!thread.waitingToWait)	// spin until thread is in the initial "waiting to wait" state
-					Sleep(0);
-				thread.terminate = true;
-				threadHandles[i] = thread.threadHandle;
-			}
-			PulseEvent(m_startWaiting);
-			::WaitForMultipleObjects((DWORD)m_threads.size(), threadHandles, TRUE, INFINITE);
-			for (i=0; i<m_threads.size(); i++)
-				CloseHandle(threadHandles[i]);
-			CloseHandle(m_startWaiting);
-			CloseHandle(m_stopWaiting);
-		}
-	}
-	catch (...)
-	{
-	}
-}
-
-
-void WaitObjectContainer::AddHandle(HANDLE handle, CallStack const& callStack)
-{
-	DetectNoWait(m_handles.size(), CallStack("WaitObjectContainer::AddHandle()", &callStack));
-	m_handles.push_back(handle);
-}
-
-DWORD WINAPI WaitingThread(LPVOID lParam)
-{
-	std::auto_ptr<WaitingThreadData> pThread((WaitingThreadData *)lParam);
-	WaitingThreadData &thread = *pThread;
-	std::vector<HANDLE> handles;
-
-	while (true)
-	{
-		thread.waitingToWait = true;
-		::WaitForSingleObject(thread.startWaiting, INFINITE);
-		thread.waitingToWait = false;
-
-		if (thread.terminate)
-			break;
-		if (!thread.count)
-			continue;
-
-		handles.resize(thread.count + 1);
-		handles[0] = thread.stopWaiting;
-		std::copy(thread.waitHandles, thread.waitHandles+thread.count, handles.begin()+1);
-
-		DWORD result = ::WaitForMultipleObjects((DWORD)handles.size(), &handles[0], FALSE, INFINITE);
-
-		if (result == WAIT_OBJECT_0)
-			continue;	// another thread finished waiting first, so do nothing
-		SetEvent(thread.stopWaiting);
-		if (!(result > WAIT_OBJECT_0 && result < WAIT_OBJECT_0 + handles.size()))
-		{
-			assert(!"error in WaitingThread");	// break here so we can see which thread has an error
-			*thread.error = ::GetLastError();
-		}
-	}
-
-	return S_OK;	// return a value here to avoid compiler warning
-}
-
-void WaitObjectContainer::CreateThreads(unsigned int count)
-{
-	size_t currentCount = m_threads.size();
-	if (currentCount == 0)
-	{
-		m_startWaiting = ::CreateEvent(NULL, TRUE, FALSE, NULL);
-		m_stopWaiting = ::CreateEvent(NULL, TRUE, FALSE, NULL);
-	}
-
-	if (currentCount < count)
-	{
-		m_threads.resize(count);
-		for (size_t i=currentCount; i<count; i++)
-		{
-			m_threads[i] = new WaitingThreadData;
-			WaitingThreadData &thread = *m_threads[i];
-			thread.terminate = false;
-			thread.startWaiting = m_startWaiting;
-			thread.stopWaiting = m_stopWaiting;
-			thread.waitingToWait = false;
-			thread.threadHandle = CreateThread(NULL, 0, &WaitingThread, &thread, 0, &thread.threadId);
-		}
-	}
-}
-
-bool WaitObjectContainer::Wait(unsigned long milliseconds)
-{
-	if (m_noWait || (m_handles.empty() && !m_firstEventTime))
-	{
-		SetLastResult(LASTRESULT_NOWAIT);
-		return true;
-	}
-
-	bool timeoutIsScheduledEvent = false;
-
-	if (m_firstEventTime)
-	{
-		double timeToFirstEvent = SaturatingSubtract(m_firstEventTime, m_eventTimer.ElapsedTimeAsDouble());
-
-		if (timeToFirstEvent <= milliseconds)
-		{
-			milliseconds = (unsigned long)timeToFirstEvent;
-			timeoutIsScheduledEvent = true;
-		}
-
-		if (m_handles.empty() || !milliseconds)
-		{
-			if (milliseconds)
-				Sleep(milliseconds);
-			SetLastResult(timeoutIsScheduledEvent ? LASTRESULT_SCHEDULED : LASTRESULT_TIMEOUT);
-			return timeoutIsScheduledEvent;
-		}
-	}
-
-	if (m_handles.size() > MAXIMUM_WAIT_OBJECTS)
-	{
-		// too many wait objects for a single WaitForMultipleObjects call, so use multiple threads
-		static const unsigned int WAIT_OBJECTS_PER_THREAD = MAXIMUM_WAIT_OBJECTS-1;
-		unsigned int nThreads = (unsigned int)((m_handles.size() + WAIT_OBJECTS_PER_THREAD - 1) / WAIT_OBJECTS_PER_THREAD);
-		if (nThreads > MAXIMUM_WAIT_OBJECTS)	// still too many wait objects, maybe implement recursive threading later?
-			throw Err("WaitObjectContainer: number of wait objects exceeds limit");
-		CreateThreads(nThreads);
-		DWORD error = S_OK;
-		
-		for (unsigned int i=0; i<m_threads.size(); i++)
-		{
-			WaitingThreadData &thread = *m_threads[i];
-			while (!thread.waitingToWait)	// spin until thread is in the initial "waiting to wait" state
-				Sleep(0);
-			if (i<nThreads)
-			{
-				thread.waitHandles = &m_handles[i*WAIT_OBJECTS_PER_THREAD];
-				thread.count = UnsignedMin(WAIT_OBJECTS_PER_THREAD, m_handles.size() - i*WAIT_OBJECTS_PER_THREAD);
-				thread.error = &error;
-			}
-			else
-				thread.count = 0;
-		}
-
-		ResetEvent(m_stopWaiting);
-		PulseEvent(m_startWaiting);
-
-		DWORD result = ::WaitForSingleObject(m_stopWaiting, milliseconds);
-		if (result == WAIT_OBJECT_0)
-		{
-			if (error == S_OK)
-				return true;
-			else
-				throw Err("WaitObjectContainer: WaitForMultipleObjects in thread failed with error " + IntToString(error));
-		}
-		SetEvent(m_stopWaiting);
-		if (result == WAIT_TIMEOUT)
-		{
-			SetLastResult(timeoutIsScheduledEvent ? LASTRESULT_SCHEDULED : LASTRESULT_TIMEOUT);
-			return timeoutIsScheduledEvent;
-		}
-		else
-			throw Err("WaitObjectContainer: WaitForSingleObject failed with error " + IntToString(::GetLastError()));
-	}
-	else
-	{
-#if TRACE_WAIT
-		static Timer t(Timer::MICROSECONDS);
-		static unsigned long lastTime = 0;
-		unsigned long timeBeforeWait = t.ElapsedTime();
-#endif
-		DWORD result = ::WaitForMultipleObjects((DWORD)m_handles.size(), &m_handles[0], FALSE, milliseconds);
-#if TRACE_WAIT
-		if (milliseconds > 0)
-		{
-			unsigned long timeAfterWait = t.ElapsedTime();
-			OutputDebugString(("Handles " + IntToString(m_handles.size()) + ", Woke up by " + IntToString(result-WAIT_OBJECT_0) + ", Busied for " + IntToString(timeBeforeWait-lastTime) + " us, Waited for " + IntToString(timeAfterWait-timeBeforeWait) + " us, max " + IntToString(milliseconds) + "ms\n").c_str());
-			lastTime = timeAfterWait;
-		}
-#endif
-		if (result >= WAIT_OBJECT_0 && result < WAIT_OBJECT_0 + m_handles.size())
-		{
-			if (result == m_lastResult)
-				m_sameResultCount++;
-			else
-			{
-				m_lastResult = result;
-				m_sameResultCount = 0;
-			}
-			return true;
-		}
-		else if (result == WAIT_TIMEOUT)
-		{
-			SetLastResult(timeoutIsScheduledEvent ? LASTRESULT_SCHEDULED : LASTRESULT_TIMEOUT);
-			return timeoutIsScheduledEvent;
-		}
-		else
-			throw Err("WaitObjectContainer: WaitForMultipleObjects failed with error " + IntToString(::GetLastError()));
-	}
-}
-
-#else // #ifdef USE_WINDOWS_STYLE_SOCKETS
-
-void WaitObjectContainer::AddReadFd(int fd, CallStack const& callStack)	// TODO: do something with callStack
-{
-	FD_SET(fd, &m_readfds);
-	m_maxFd = STDMAX(m_maxFd, fd);
-}
-
-void WaitObjectContainer::AddWriteFd(int fd, CallStack const& callStack) // TODO: do something with callStack
-{
-	FD_SET(fd, &m_writefds);
-	m_maxFd = STDMAX(m_maxFd, fd);
-}
-
-bool WaitObjectContainer::Wait(unsigned long milliseconds)
-{
-	if (m_noWait || (!m_maxFd && !m_firstEventTime))
-		return true;
-
-	bool timeoutIsScheduledEvent = false;
-
-	if (m_firstEventTime)
-	{
-		double timeToFirstEvent = SaturatingSubtract(m_firstEventTime, m_eventTimer.ElapsedTimeAsDouble());
-		if (timeToFirstEvent <= milliseconds)
-		{
-			milliseconds = (unsigned long)timeToFirstEvent;
-			timeoutIsScheduledEvent = true;
-		}
-	}
-
-	timeval tv, *timeout;
-
-	if (milliseconds == INFINITE_TIME)
-		timeout = NULL;
-	else
-	{
-		tv.tv_sec = milliseconds / 1000;
-		tv.tv_usec = (milliseconds % 1000) * 1000;
-		timeout = &tv;
-	}
-
-	int result = select(m_maxFd+1, &m_readfds, &m_writefds, NULL, timeout);
-
-	if (result > 0)
-		return true;
-	else if (result == 0)
-		return timeoutIsScheduledEvent;
-	else
-		throw Err("WaitObjectContainer: select failed with error " + errno);
-}
-
-#endif
-
-// ********************************************************
-
-std::string CallStack::Format() const
-{
-	return m_info;
-}
-
-std::string CallStackWithNr::Format() const
-{
-	return std::string(m_info) + " / nr: " + IntToString(m_nr);
-}
-
-std::string CallStackWithStr::Format() const
-{
-	return std::string(m_info) + " / " + std::string(m_z);
-}
-
-bool Waitable::Wait(unsigned long milliseconds, CallStack const& callStack)
-{
-	WaitObjectContainer container;
-	GetWaitObjects(container, callStack);	// reduce clutter by not adding this func to stack
-	return container.Wait(milliseconds);
-}
-
-NAMESPACE_END
-
-#endif
-- 
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