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-rw-r--r--src/leveldb/port/port_win.cc158
1 files changed, 0 insertions, 158 deletions
diff --git a/src/leveldb/port/port_win.cc b/src/leveldb/port/port_win.cc
deleted file mode 100644
index 1be9e8d5b0..0000000000
--- a/src/leveldb/port/port_win.cc
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@@ -1,158 +0,0 @@
-// LevelDB Copyright (c) 2011 The LevelDB Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file. See the AUTHORS file for names of contributors.
-//
-// See port_example.h for documentation for the following types/functions.
-
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// * 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.
-// * Neither the name of the University of California, Berkeley 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 THE REGENTS AND 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 THE REGENTS AND 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.
-//
-
-#include "port/port_win.h"
-
-#include <windows.h>
-#include <cassert>
-#include <intrin.h>
-
-namespace leveldb {
-namespace port {
-
-Mutex::Mutex() :
- cs_(NULL) {
- assert(!cs_);
- cs_ = static_cast<void *>(new CRITICAL_SECTION());
- ::InitializeCriticalSection(static_cast<CRITICAL_SECTION *>(cs_));
- assert(cs_);
-}
-
-Mutex::~Mutex() {
- assert(cs_);
- ::DeleteCriticalSection(static_cast<CRITICAL_SECTION *>(cs_));
- delete static_cast<CRITICAL_SECTION *>(cs_);
- cs_ = NULL;
- assert(!cs_);
-}
-
-void Mutex::Lock() {
- assert(cs_);
- ::EnterCriticalSection(static_cast<CRITICAL_SECTION *>(cs_));
-}
-
-void Mutex::Unlock() {
- assert(cs_);
- ::LeaveCriticalSection(static_cast<CRITICAL_SECTION *>(cs_));
-}
-
-void Mutex::AssertHeld() {
- assert(cs_);
- assert(1);
-}
-
-CondVar::CondVar(Mutex* mu) :
- waiting_(0),
- mu_(mu),
- sem1_(::CreateSemaphore(NULL, 0, 10000, NULL)),
- sem2_(::CreateSemaphore(NULL, 0, 10000, NULL)) {
- assert(mu_);
-}
-
-CondVar::~CondVar() {
- ::CloseHandle(sem1_);
- ::CloseHandle(sem2_);
-}
-
-void CondVar::Wait() {
- mu_->AssertHeld();
-
- wait_mtx_.Lock();
- ++waiting_;
- wait_mtx_.Unlock();
-
- mu_->Unlock();
-
- // initiate handshake
- ::WaitForSingleObject(sem1_, INFINITE);
- ::ReleaseSemaphore(sem2_, 1, NULL);
- mu_->Lock();
-}
-
-void CondVar::Signal() {
- wait_mtx_.Lock();
- if (waiting_ > 0) {
- --waiting_;
-
- // finalize handshake
- ::ReleaseSemaphore(sem1_, 1, NULL);
- ::WaitForSingleObject(sem2_, INFINITE);
- }
- wait_mtx_.Unlock();
-}
-
-void CondVar::SignalAll() {
- wait_mtx_.Lock();
- ::ReleaseSemaphore(sem1_, waiting_, NULL);
- while(waiting_ > 0) {
- --waiting_;
- ::WaitForSingleObject(sem2_, INFINITE);
- }
- wait_mtx_.Unlock();
-}
-
-AtomicPointer::AtomicPointer(void* v) {
- Release_Store(v);
-}
-
-void InitOnce(OnceType* once, void (*initializer)()) {
- once->InitOnce(initializer);
-}
-
-void* AtomicPointer::Acquire_Load() const {
- void * p = NULL;
- InterlockedExchangePointer(&p, rep_);
- return p;
-}
-
-void AtomicPointer::Release_Store(void* v) {
- InterlockedExchangePointer(&rep_, v);
-}
-
-void* AtomicPointer::NoBarrier_Load() const {
- return rep_;
-}
-
-void AtomicPointer::NoBarrier_Store(void* v) {
- rep_ = v;
-}
-
-bool HasAcceleratedCRC32C() {
-#if defined(__x86_64__) || defined(__i386__)
- int cpu_info[4];
- __cpuid(cpu_info, 1);
- return (cpu_info[2] & (1 << 20)) != 0;
-#else
- return false;
-#endif
-}
-
-}
-}