Remove webkit\pending\wtf\ThreadingWin.cpp.

Review URL: http://codereview.chromium.org/7152

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@3371 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 469 deletions

diff --git a/webkit/pending/wtf/ThreadingWin.cpp b/webkit/pending/wtf/ThreadingWin.cpp
deleted file mode 100644
index d2da60f..0000000
--- a/webkit/pending/wtf/ThreadingWin.cpp
+++ /dev/null
@@ -1,469 +0,0 @@
-/*
- * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer. 
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution. 
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * =============================================================================
- * Note:  The implementation of condition variables under the Windows
- * plaform was based on that of the excellent BOOST C++ library.  It
- * has been rewritten to fit in with the WebKit architecture and to
- * use its coding conventions.
- * =============================================================================
- *
- * The Boost license is virtually identical to the Apple variation at the
- * top of this file, but is included here for completeness:
- *
- * Boost Software License - Version 1.0 - August 17th, 2003
- *
- * Permission is hereby granted, free of charge, to any person or organization
- * obtaining a copy of the software and accompanying documentation covered by
- * this license (the "Software") to use, reproduce, display, distribute,
- * execute, and transmit the Software, and to prepare derivative works of the
- * Software, and to permit third-parties to whom the Software is furnished to
- * do so, all subject to the following:
- *
- * The copyright notices in the Software and this entire statement, including
- * the above license grant, this restriction and the following disclaimer,
- * must be included in all copies of the Software, in whole or in part, and
- * all derivative works of the Software, unless such copies or derivative
- * works are solely in the form of machine-executable object code generated by
- * a source language processor.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
- * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
- * FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#include "config.h"
-#include "Threading.h"
-
-#include "MainThread.h"
-#include <process.h>
-#include <windows.h>
-#include <wtf/HashMap.h>
-#include <wtf/MathExtras.h>
-
-#if PLATFORM(WIN) && USE(PTHREADS)
-// Currently, Apple's Windows port uses a mixture of native and pthreads functions in FastMalloc.
-// To ensure that thread-specific data is properly destroyed, we need to end each thread with pthread_exit().
-#include <pthread.h>
-#endif
-
-namespace WTF {
-
-// MS_VC_EXCEPTION, THREADNAME_INFO, and setThreadName all come from <http://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx>.
-static const DWORD MS_VC_EXCEPTION = 0x406D1388;
-
-#pragma pack(push, 8)
-typedef struct tagTHREADNAME_INFO {
-    DWORD dwType; // must be 0x1000
-    LPCSTR szName; // pointer to name (in user addr space)
-    DWORD dwThreadID; // thread ID (-1=caller thread)
-    DWORD dwFlags; // reserved for future use, must be zero
-} THREADNAME_INFO;
-#pragma pack(pop)
-
-static void setThreadName(DWORD dwThreadID, LPCSTR szThreadName)
-{
-    // Visual Studio has a 31-character limit on thread names. Longer names will
-    // be truncated silently, but we'd like callers to know about the limit.
-    ASSERT_ARG(szThreadName, strlen(szThreadName) <= 31);
-
-    THREADNAME_INFO info;
-    info.dwType = 0x1000;
-    info.szName = szThreadName;
-    info.dwThreadID = dwThreadID;
-    info.dwFlags = 0;
-
-    __try {
-        RaiseException(MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(ULONG_PTR), reinterpret_cast<ULONG_PTR*>(&info));
-    } __except (EXCEPTION_CONTINUE_EXECUTION) {
-    }
-}
-
-Mutex* atomicallyInitializedStaticMutex;
-
-static ThreadIdentifier mainThreadIdentifier;
-
-static Mutex& threadMapMutex()
-{
-    static Mutex mutex;
-    return mutex;
-}
-
-void initializeThreading()
-{
-    if (!atomicallyInitializedStaticMutex) {
-        atomicallyInitializedStaticMutex = new Mutex;
-        threadMapMutex();
-        wtf_random_init();
-        initializeMainThread();
-        mainThreadIdentifier = currentThread();
-        setThreadName(mainThreadIdentifier, "Main Thread");
-    }
-}
-
-static HashMap<DWORD, HANDLE>& threadMap()
-{
-    static HashMap<DWORD, HANDLE> map;
-    return map;
-}
-
-static void storeThreadHandleByIdentifier(DWORD threadID, HANDLE threadHandle)
-{
-    MutexLocker locker(threadMapMutex());
-    threadMap().add(threadID, threadHandle);
-}
-
-static HANDLE threadHandleForIdentifier(ThreadIdentifier id)
-{
-    MutexLocker locker(threadMapMutex());
-    return threadMap().get(id);
-}
-
-static void clearThreadHandleForIdentifier(ThreadIdentifier id)
-{
-    MutexLocker locker(threadMapMutex());
-    ASSERT(threadMap().contains(id));
-    threadMap().remove(id);
-}
-
-struct ThreadFunctionInvocation {
-    ThreadFunctionInvocation(ThreadFunction function, void* data) : function(function), data(data) {}
-
-    ThreadFunction function;
-    void* data;
-};
-
-static unsigned __stdcall wtfThreadEntryPoint(void* param)
-{
-    ThreadFunctionInvocation invocation = *static_cast<ThreadFunctionInvocation*>(param);
-    delete static_cast<ThreadFunctionInvocation*>(param);
-
-    void* result = invocation.function(invocation.data);
-
-#if PLATFORM(WIN) && USE(PTHREADS)
-    // pthreads-win32 knows how to work with threads created with Win32 or CRT functions, so it's OK to mix APIs.
-    pthread_exit(result);
-#endif
-
-    return reinterpret_cast<unsigned>(result);
-}
-
-ThreadIdentifier createThread(ThreadFunction entryPoint, void* data, const char* threadName)
-{
-    unsigned threadIdentifier = 0;
-    ThreadIdentifier threadID = 0;
-    ThreadFunctionInvocation* invocation = new ThreadFunctionInvocation(entryPoint, data);
-    HANDLE threadHandle = reinterpret_cast<HANDLE>(_beginthreadex(0, 0, wtfThreadEntryPoint, invocation, 0, &threadIdentifier));
-    if (!threadHandle) {
-        LOG_ERROR("Failed to create thread at entry point %p with data %p: %ld", entryPoint, data, errno);
-        return 0;
-    }
-
-    if (threadName)
-        setThreadName(threadIdentifier, threadName);
-
-    threadID = static_cast<ThreadIdentifier>(threadIdentifier);
-    storeThreadHandleByIdentifier(threadIdentifier, threadHandle);
-
-    return threadID;
-}
-
-// This function is deprecated but needs to be kept around for backward
-// compatibility. Use the 3-argument version of createThread above.
-ThreadIdentifier createThread(ThreadFunction entryPoint, void* data)
-{
-    return createThread(entryPoint, data, 0);
-}
-
-int waitForThreadCompletion(ThreadIdentifier threadID, void** result)
-{
-    ASSERT(threadID);
-    
-    HANDLE threadHandle = threadHandleForIdentifier(threadID);
-    if (!threadHandle)
-        LOG_ERROR("ThreadIdentifier %u did not correspond to an active thread when trying to quit", threadID);
- 
-    DWORD joinResult = ::WaitForSingleObject(threadHandle, INFINITE);
-    if (joinResult == WAIT_FAILED)
-        LOG_ERROR("ThreadIdentifier %u was found to be deadlocked trying to quit", threadID);
-
-    ::CloseHandle(threadHandle);
-    clearThreadHandleForIdentifier(threadID);
-
-    return joinResult;
-}
-
-void detachThread(ThreadIdentifier threadID)
-{
-    ASSERT(threadID);
-    
-    HANDLE threadHandle = threadHandleForIdentifier(threadID);
-    if (threadHandle)
-        ::CloseHandle(threadHandle);
-    clearThreadHandleForIdentifier(threadID);
-}
-
-ThreadIdentifier currentThread()
-{
-    return static_cast<ThreadIdentifier>(::GetCurrentThreadId());
-}
-
-bool isMainThread()
-{
-    return currentThread() == mainThreadIdentifier;
-}
-
-Mutex::Mutex()
-{
-    m_mutex.m_recursionCount = 0;
-    ::InitializeCriticalSection(&m_mutex.m_internalMutex);
-}
-
-Mutex::~Mutex()
-{
-    ::DeleteCriticalSection(&m_mutex.m_internalMutex);
-}
-
-void Mutex::lock()
-{
-    ::EnterCriticalSection(&m_mutex.m_internalMutex);
-    ++m_mutex.m_recursionCount;
-}
-    
-bool Mutex::tryLock()
-{
-    // This method is modeled after the behavior of pthread_mutex_trylock,
-    // which will return an error if the lock is already owned by the
-    // current thread.  Since the primitive Win32 'TryEnterCriticalSection'
-    // treats this as a successful case, it changes the behavior of several
-    // tests in WebKit that check to see if the current thread already
-    // owned this mutex (see e.g., IconDatabase::getOrCreateIconRecord)
-    DWORD result = ::TryEnterCriticalSection(&m_mutex.m_internalMutex);
-    
-    if (result != 0) {       // We got the lock
-        // If this thread already had the lock, we must unlock and
-        // return false so that we mimic the behavior of POSIX's
-        // pthread_mutex_trylock:
-        if (m_mutex.m_recursionCount > 0) {
-            ::LeaveCriticalSection(&m_mutex.m_internalMutex);
-            return false;
-        }
-
-        ++m_mutex.m_recursionCount;
-        return true;
-    }
-
-    return false;
-}
-
-void Mutex::unlock()
-{
-    --m_mutex.m_recursionCount;
-    ::LeaveCriticalSection(&m_mutex.m_internalMutex);
-}
-
-static const long MaxSemaphoreCount = static_cast<long>(~0UL >> 1);
-
-ThreadCondition::ThreadCondition()
-{
-    m_condition.m_timedOut = 0;
-    m_condition.m_blocked = 0;
-    m_condition.m_waitingForRemoval = 0;
-    m_condition.m_gate = ::CreateSemaphore(0, 1, 1, 0);
-    m_condition.m_queue = ::CreateSemaphore(0, 0, MaxSemaphoreCount, 0);
-    m_condition.m_mutex = ::CreateMutex(0, 0, 0);
-
-    if (!m_condition.m_gate || !m_condition.m_queue || !m_condition.m_mutex) {
-        if (m_condition.m_gate)
-            ::CloseHandle(m_condition.m_gate);
-        if (m_condition.m_queue)
-            ::CloseHandle(m_condition.m_queue);
-        if (m_condition.m_mutex)
-            ::CloseHandle(m_condition.m_mutex);
-    }
-}
-
-ThreadCondition::~ThreadCondition()
-{
-    ::CloseHandle(m_condition.m_gate);
-    ::CloseHandle(m_condition.m_queue);
-    ::CloseHandle(m_condition.m_mutex);
-}
-    
-void ThreadCondition::wait(Mutex& mutex)
-{
-    PlatformMutex& cs = mutex.impl();
-
-    // Enter the wait state.
-    DWORD res = ::WaitForSingleObject(m_condition.m_gate, INFINITE);
-    ASSERT(res == WAIT_OBJECT_0);
-    ++m_condition.m_blocked;
-    res = ::ReleaseSemaphore(m_condition.m_gate, 1, 0);
-    ASSERT(res);
-
-    ::LeaveCriticalSection(&cs.m_internalMutex);
-
-    res = ::WaitForSingleObject(m_condition.m_queue, INFINITE);
-    ASSERT(res == WAIT_OBJECT_0);
-
-    res = ::WaitForSingleObject(m_condition.m_mutex, INFINITE);
-    ASSERT(res == WAIT_OBJECT_0);
-    size_t wasWaiting = m_condition.m_waitingForRemoval;
-    size_t wasTimedOut = m_condition.m_timedOut;
-    if (wasWaiting != 0) {
-        if (--m_condition.m_waitingForRemoval == 0) {
-            if (m_condition.m_blocked != 0) {
-                res = ::ReleaseSemaphore(m_condition.m_gate, 1, 0);  // open m_gate
-                ASSERT(res);
-                wasWaiting = 0;
-            }
-            else if (m_condition.m_timedOut != 0)
-                m_condition.m_timedOut = 0;
-        }
-    } else if (++m_condition.m_timedOut == ((std::numeric_limits<unsigned>::max)() / 2)) {
-        // timeout occured, normalize the m_condition.m_timedOut count
-        // this may occur if many calls to wait with a timeout are made and
-        // no call to notify_* is made
-        res = ::WaitForSingleObject(m_condition.m_gate, INFINITE);
-        ASSERT(res == WAIT_OBJECT_0);
-        m_condition.m_blocked -= m_condition.m_timedOut;
-        res = ::ReleaseSemaphore(m_condition.m_gate, 1, 0);
-        ASSERT(res);
-        m_condition.m_timedOut = 0;
-    }
-    res = ::ReleaseMutex(m_condition.m_mutex);
-    ASSERT(res);
-
-    if (wasWaiting == 1) {
-        for (/**/ ; wasTimedOut; --wasTimedOut) {
-            // better now than spurious later
-            res = ::WaitForSingleObject(m_condition.m_queue, INFINITE);
-            ASSERT(res == WAIT_OBJECT_0);
-        }
-        res = ::ReleaseSemaphore(m_condition.m_gate, 1, 0);
-        ASSERT(res);
-    }
-
-    ::EnterCriticalSection (&cs.m_internalMutex);
-}
-
-bool ThreadCondition::timedWait(Mutex& mutex, double interval)
-{
-    // Empty for now
-    ASSERT(false);
-    return false;
-}
-
-void ThreadCondition::signal()
-{
-    unsigned signals = 0;
-
-    DWORD res = ::WaitForSingleObject(m_condition.m_mutex, INFINITE);
-    ASSERT(res == WAIT_OBJECT_0);
-
-    if (m_condition.m_waitingForRemoval != 0) { // the m_gate is already closed
-        if (m_condition.m_blocked == 0) {
-            res = ::ReleaseMutex(m_condition.m_mutex);
-            ASSERT(res);
-            return;
-        }
-
-        ++m_condition.m_waitingForRemoval;
-        --m_condition.m_blocked;
-
-        signals = 1;
-    } else {
-        res = ::WaitForSingleObject(m_condition.m_gate, INFINITE);
-        ASSERT(res == WAIT_OBJECT_0);
-        if (m_condition.m_blocked > m_condition.m_timedOut) {
-            if (m_condition.m_timedOut != 0) {
-                m_condition.m_blocked -= m_condition.m_timedOut;
-                m_condition.m_timedOut = 0;
-            }
-            signals = m_condition.m_waitingForRemoval = 1;
-            --m_condition.m_blocked;
-        } else {
-            res = ::ReleaseSemaphore(m_condition.m_gate, 1, 0);
-            ASSERT(res);
-        }
-    }
-
-    res =::ReleaseMutex(m_condition.m_mutex);
-    ASSERT(res);
-
-    if (signals) {
-        res = ::ReleaseSemaphore(m_condition.m_queue, signals, 0);
-        ASSERT(res);
-    }
-}
-
-void ThreadCondition::broadcast()
-{
-    unsigned signals = 0;
-
-    WORD res = ::WaitForSingleObject(m_condition.m_mutex, INFINITE);
-    ASSERT(res == WAIT_OBJECT_0);
-
-    if (m_condition.m_waitingForRemoval != 0) { // the m_gate is already closed
-        if (m_condition.m_blocked == 0) {
-            res = ::ReleaseMutex(m_condition.m_mutex);
-            ASSERT(res);
-            return;
-        }
-
-        m_condition.m_waitingForRemoval += (signals = m_condition.m_blocked);
-        m_condition.m_blocked = 0;
-    } else {
-        res = ::WaitForSingleObject(m_condition.m_gate, INFINITE);
-        ASSERT(res == WAIT_OBJECT_0);
-        if (m_condition.m_blocked > m_condition.m_timedOut) {
-            if (m_condition.m_timedOut != 0) {
-                m_condition.m_blocked -= m_condition.m_timedOut;
-                m_condition.m_timedOut = 0;
-            }
-            signals = m_condition.m_waitingForRemoval = m_condition.m_blocked;
-            m_condition.m_blocked = 0;
-        } else {
-            res = ::ReleaseSemaphore(m_condition.m_gate, 1, 0);
-            ASSERT(res);
-        }
-    }
-
-    res = ::ReleaseMutex(m_condition.m_mutex);
-    ASSERT(res);
-
-    if (signals) {
-        res = ::ReleaseSemaphore(m_condition.m_queue, signals, 0);
-        ASSERT(res);
-    }
-}
-
-} // namespace WTF