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/*
Copyright (c) 2015 Miranda NG project (http://miranda-ng.org)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation version 2
of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
RequestQueue::RequestQueue(HANDLE hConnection) :
hConnection(hConnection), requests(1)
{
hRequestQueueThread = NULL;
hRequestQueueEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
}
RequestQueue::~RequestQueue()
{
requests.destroy();
CloseHandle(hRequestQueueEvent);
}
void RequestQueue::Start()
{
if (!isTerminated)
return;
isTerminated = false;
if (hRequestQueueThread == NULL)
hRequestQueueThread = mir_forkthread((pThreadFunc)&RequestQueue::WorkerThread, this);
}
void RequestQueue::Stop()
{
if (isTerminated)
return;
isTerminated = true;
hRequestQueueThread = NULL;
}
void RequestQueue::Push(HttpRequest *request, HttpResponseCallback response, void *arg)
{
if (isTerminated)
return;
RequestQueueItem *item = new RequestQueueItem(request, response, arg);
{
mir_cslock lock(requestQueueLock);
requests.insert(item);
}
SetEvent(hRequestQueueEvent);
}
void RequestQueue::Execute(RequestQueueItem *item)
{
NETLIBHTTPREQUEST *response = item->request->Send(hConnection);
if (item->responseCallback != NULL)
item->responseCallback(response, item->arg);
CallService(MS_NETLIB_FREEHTTPREQUESTSTRUCT, 0, (LPARAM)response);
requests.remove(item);
delete item;
}
unsigned int RequestQueue::WorkerThread(void* owner, void*)
{
RequestQueue *that = (RequestQueue*)owner;
while (!that->isTerminated)
{
WaitForSingleObject(that->hRequestQueueEvent, INFINITE);
while (true)
{
RequestQueueItem *item = NULL;
{
mir_cslock lock(that->requestQueueLock);
if (that->requests.getCount() == 0)
break;
item = that->requests[0];
that->requests.remove(0);
}
if (item != NULL)
that->Execute(item);
}
}
return 0;
}
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