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EtchFreePool.cpp
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167 lines (142 loc) · 3.93 KB
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/* $Id$
*
* 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.
*/
#include "support/EtchFreePool.h"
#include "capu/os/Thread.h"
#include "capu/util/Runnable.h"
#include "capu/os/Memory.h"
#include "capu/util/Runnable.h"
class EtchFreePoolRunnable : public capu::Runnable {
public:
/**
* Create a new instance of EtchFreePoolRunnable class.
*/
EtchFreePoolRunnable(EtchFreePool* pool, capu::SmartPointer<EtchPoolRunnable> runnable)
: mRunnable(runnable) {
}
/**
* Destructor
*/
virtual ~EtchFreePoolRunnable() {
}
/**
* Runnable
*/
void run() {
if(mRunnable.get() != NULL) {
if(ETCH_OK != mRunnable->run()) {
// Log exception
if(mRunnable->hasException()) {
capu::SmartPointer<EtchException> exception;
mRunnable->getException(&exception);
mRunnable->exception(exception);
}
}
}
}
private:
capu::SmartPointer<EtchPoolRunnable> mRunnable;
};
const EtchObjectType* EtchFreePool::TYPE() {
const static EtchObjectType TYPE(EOTID_FREEPOOL, NULL);
return &TYPE;
}
EtchFreePool::EtchFreePool(capu::int32_t size)
: mSize(0), mSizeMax(size), mIsOpen(true) {
addObjectType(TYPE());
mThreads = new capu::Thread*[mSizeMax];
capu::Memory::Set(mThreads, 0, sizeof(capu::Thread*)*mSizeMax);
mRunnables = new EtchFreePoolRunnable*[mSizeMax];
capu::Memory::Set(mRunnables, 0, sizeof(EtchFreePoolRunnable*)*mSizeMax);
}
EtchFreePool::~EtchFreePool() {
delete[] mThreads;
delete[] mRunnables;
}
status_t EtchFreePool::close() {
mIsOpen = false;
return ETCH_OK;
}
capu::int32_t EtchFreePool::getSize() {
capu::int32_t size;
mMutex.lock();
check();
size = mSize;
mMutex.unlock();
return size;
}
status_t EtchFreePool::join() {
mMutex.lock();
close();
for(capu::int32_t i = 0; i < mSizeMax; i++) {
if(mThreads[i] != NULL) {
mThreads[i]->join();
delete mThreads[i];
delete mRunnables[i];
mThreads[i] = NULL;
mRunnables[i] = NULL;
}
}
mMutex.unlock();
return ETCH_OK;
}
status_t EtchFreePool::add(capu::SmartPointer<EtchPoolRunnable> runnable) {
// TODO: improve thread group handling and clean up e.g. with
// a free list that could be cleaned if the tread terminated
if(!mIsOpen) {
return ETCH_ERROR;
}
mMutex.lock();
// clean thread list
check();
if(mSize >= mSizeMax) {
mMutex.unlock();
return ETCH_ERROR;
}
EtchFreePoolRunnable *tmp = new EtchFreePoolRunnable(this, runnable);
capu::Thread* thread = new capu::Thread();
thread->start(*tmp);
for(capu::int32_t i = 0; i < mSizeMax; i++) {
if(mThreads[i] == NULL) {
mThreads[i] = thread;
mRunnables[i] = tmp;
mSize++;
mMutex.unlock();
return ETCH_OK;
}
}
mMutex.unlock();
return ETCH_ERROR;
}
status_t EtchFreePool::check() {
for(capu::int32_t i = 0; i < mSizeMax; i++) {
if(mThreads[i] != NULL) {
capu::ThreadState state = mThreads[i]->getState();
// clean old threads
if(capu::TS_TERMINATED == state) {
delete mThreads[i];
mThreads[i] = NULL;
if (mRunnables[i] != NULL) {
delete mRunnables[i];
mRunnables[i] = NULL;
}
mSize--;
}
}
}
return ETCH_OK;
}