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/*
* Copyright (C)2005-2019 Haxe Foundation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package sys.thread;
import cs.system.threading.Thread as NativeThread;
import cs.system.WeakReference;
import cs.Lib;
abstract Thread(HaxeThread) {
inline function new(thread:HaxeThread) {
this = thread;
}
public static function create(cb:Void->Void):Thread {
var native = new NativeThread(cb);
native.IsBackground = true;
var hx = HaxeThread.allocate(native);
native.Start();
return new Thread(hx);
}
public static inline function current():Thread {
return new Thread(HaxeThread.get(NativeThread.CurrentThread));
}
public static function readMessage(block:Bool):Dynamic {
return current().readMessageImpl(block);
}
public inline function sendMessage(msg:Dynamic):Void {
this.sendMessage(msg);
}
inline function readMessageImpl(block:Bool):Dynamic {
return this.readMessage(block);
}
}
private class HaxeThread {
static final threads = new Map<Int, WeakReference>();
static var allocateCount = 0;
public final native:NativeThread;
final messages = new Deque<Dynamic>();
public static function get(native:NativeThread):HaxeThread {
var native = NativeThread.CurrentThread;
var ref:Null<WeakReference> = null;
Lib.lock(threads, {
var key = native.ManagedThreadId;
ref = threads.get(key);
});
if (ref == null || !ref.IsAlive) {
return allocate(native);
}
return ref.Target;
}
public static function allocate(native:NativeThread):HaxeThread {
allocateCount++;
inline function cleanup() {
if (allocateCount % 100 == 0) {
for (key => ref in threads) {
if (!ref.IsAlive) {
threads.remove(key);
}
}
}
}
var hx = new HaxeThread(native);
var ref = new WeakReference(hx);
Lib.lock(threads, {
cleanup();
threads.set(native.ManagedThreadId, ref);
});
return hx;
}
public function new(native:NativeThread) {
this.native = native;
}
public inline function readMessage(block:Bool):Dynamic {
return messages.pop(block);
}
public function sendMessage(msg:Dynamic):Void {
messages.add(msg);
}
}
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