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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
#ifndef _THRIFT_WINDOWS_Sync_H_
#define _THRIFT_WINDOWS_Sync_H_ 1
#ifndef _WIN32
#error "windows/Sync.h is only usable on Windows"
#endif
#include <thrift/concurrency/Exception.h>
#include <boost/noncopyable.hpp>
#include <Windows.h>
/*
Lightweight synchronization objects that only make sense on Windows. For cross-platform
code, use the classes found in the concurrency namespace
*/
namespace apache { namespace thrift {
struct TCriticalSection : boost::noncopyable {
CRITICAL_SECTION cs;
TCriticalSection() {InitializeCriticalSection(&cs);}
~TCriticalSection() {DeleteCriticalSection(&cs);}
};
class TAutoCrit : boost::noncopyable {
private:
CRITICAL_SECTION *cs_;
public:
explicit TAutoCrit(TCriticalSection &cs) : cs_(&cs.cs) {EnterCriticalSection(cs_);}
~TAutoCrit() {LeaveCriticalSection(cs_);}
};
struct TAutoResetEvent : boost::noncopyable {
HANDLE h;
TAutoResetEvent() {
h = CreateEvent( NULL, FALSE, FALSE, NULL);
if(h == NULL) {
GlobalOutput.perror("TAutoResetEvent unable to create event, GLE=", GetLastError());
throw apache::thrift::concurrency::SystemResourceException("CreateEvent failed");
}
}
~TAutoResetEvent() {CloseHandle(h);}
};
struct TManualResetEvent : boost::noncopyable {
HANDLE h;
TManualResetEvent() {
h = CreateEvent( NULL, TRUE, FALSE, NULL);
if(h == NULL) {
GlobalOutput.perror("TManualResetEvent unable to create event, GLE=", GetLastError());
throw apache::thrift::concurrency::SystemResourceException("CreateEvent failed");
}
}
~TManualResetEvent() {CloseHandle(h);}
};
struct TAutoHandle : boost::noncopyable {
HANDLE h;
explicit TAutoHandle(HANDLE h_ = INVALID_HANDLE_VALUE) : h(h_) {}
~TAutoHandle() {
if(h != INVALID_HANDLE_VALUE)
CloseHandle(h);
}
HANDLE release() {
HANDLE retval = h;
h = INVALID_HANDLE_VALUE;
return retval;
}
void reset(HANDLE h_ = INVALID_HANDLE_VALUE) {
if(h_ == h)
return;
if(h != INVALID_HANDLE_VALUE)
CloseHandle(h);
h = h_;
}
};
}} //apache::thrift
#endif
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