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/*******************************************************************************
* Goggles Audio Player Library *
********************************************************************************
* Copyright (C) 2010-2021 by Sander Jansen. All Rights Reserved *
* --- *
* 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, either version 3 of the License, or *
* (at your option) any later version. *
* *
* 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 "ap_defs.h"
#include "ap_event.h"
#include "ap_app_queue.h"
namespace ap {
FXAppQueue::FXAppQueue() : channel(nullptr),target(nullptr),message(0) {
}
FXAppQueue::FXAppQueue(FXApp * app,FXObject * tgt,FXSelector sel) : target(tgt),message(sel) {
channel=new FXMessageChannel(app);
}
FXAppQueue::~FXAppQueue() {
flush();
FXASSERT(head==nullptr);
FXASSERT(tail==nullptr);
delete channel;
}
void FXAppQueue::post(Event*event,FXint where) {
mfifo.lock();
if (where==Back) {
if (tail) tail->next = event;
event->next=nullptr;
tail = event;
if (head==nullptr) {
head=tail;
mfifo.unlock();
channel->message(target,FXSEL(SEL_CHANGED,message),nullptr);
return;
}
}
else {
event->next=head;
head=event;
if (tail==nullptr) {
tail=head;
mfifo.unlock();
channel->message(target,FXSEL(SEL_CHANGED,message),nullptr);
return;
}
}
mfifo.unlock();
}
Event * FXAppQueue::pop() {
Event * event=nullptr;
mfifo.lock();
// event = atomicSet(head,head->next);
if (head) {
event=head;
head=head->next;
event->next=nullptr;
if (head==nullptr) tail=nullptr;
}
mfifo.unlock();
return event;
}
void FXAppQueue::flush() {
mfifo.lock();
Event * h = head;
head=tail=nullptr;
mfifo.unlock();
while(h) {
Event * event = h;
h = h->next;
event->next = nullptr;
Event::unref(event);
}
}
}
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