[cs] `sys.thread.*` implementations (#8166)

* [cs] Thread

* [cs] Lock

* cleanup

* [cs] Mutex; fixed Lock

* [cs] Tls

* [cs] Haxe threads should be "background"

* [cs] Deque

* [cs] use ManualResetEvent to block threads

* fixes

* [cs] test threads on CI

* increase TestThreads timeout

* revert TestThreads timeout

* [cs] disable TestThreads

std/cs/_std/sys/thread/Deque.hx

@@ -0,0 +1,61 @@
+/*
+ * 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.ManualResetEvent;
+import cs.Lib;
+
+@:coreApi class Deque<T> {
+	final storage:Array<T> = [];
+	final lockObj = {};
+	final addEvent = new ManualResetEvent(false);
+
+	public function new():Void {
+	}
+
+	public function add(i:T):Void {
+		Lib.lock(lockObj, {
+			storage.push(i);
+			addEvent.Set();
+		});
+	}
+
+	public function push(i:T):Void {
+		Lib.lock(lockObj, {
+			storage.unshift(i);
+			addEvent.Set();
+		});
+	}
+
+	public function pop(block:Bool):Null<T> {
+		do {
+			Lib.lock(lockObj, {
+				if(storage.length > 0) {
+					return storage.shift();
+				}
+				addEvent.Reset();
+			});
+		} while(block && addEvent.WaitOne());
+		return null;
+	}
+}

std/cs/_std/sys/thread/Lock.hx

@@ -0,0 +1,79 @@
+/*
+ * 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 haxe.Timer;
+import cs.Lib;
+import cs.system.threading.ManualResetEvent;
+
+class Lock {
+	final lockObj = {};
+	final releaseEvent = new ManualResetEvent(false);
+
+	var waitCount = 1; //initially locked
+	var releaseCount = 0;
+
+	public function new():Void {}
+
+	public function wait(?timeout:Float):Bool {
+		var myTicket;
+		//Get a ticket in queue
+		Lib.lock(lockObj, {
+			myTicket = waitCount;
+			waitCount++;
+			if(myTicket <= releaseCount) {
+				return true;
+			}
+			releaseEvent.Reset();
+		});
+
+		if(timeout == null) {
+			do {
+				releaseEvent.WaitOne();
+				if(myTicket <= releaseCount) {
+					return true;
+				}
+			} while(true);
+		} else {
+			var timeoutStamp = Timer.stamp() + timeout;
+			do {
+				var secondsLeft = timeoutStamp - Timer.stamp();
+				if(secondsLeft <= 0 || !releaseEvent.WaitOne(Std.int(secondsLeft * 1000))) {
+					//Timeout. Do not occupy a place in queue anymore
+					release();
+					return false;
+				}
+				if(myTicket <= releaseCount) {
+					return true;
+				}
+			} while(true);
+		}
+	}
+
+	public function release():Void {
+		Lib.lock(lockObj, {
+			releaseCount++;
+			releaseEvent.Set();
+		});
+	}
+}

std/cs/_std/sys/thread/Mutex.hx

@@ -0,0 +1,45 @@
+/*
+ * 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.Mutex as NativeMutex;
+
+class Mutex {
+	final native = new NativeMutex();
+
+	public function new():Void {
+
+	}
+
+	public function acquire():Void {
+		native.WaitOne();
+	}
+
+	public function tryAcquire():Bool {
+		return native.WaitOne(0);
+	}
+
+	public function release():Void {
+		native.ReleaseMutex();
+	}
+}

std/cs/_std/sys/thread/Thread.hx

@@ -0,0 +1,111 @@
+/*
+ * 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);
+	}
+}

std/cs/_std/sys/thread/Tls.hx

@@ -0,0 +1,45 @@
+/*
+ * 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.LocalDataStoreSlot;
+
+class Tls<T> {
+	public var value(get, set):T;
+
+	final slot:LocalDataStoreSlot;
+
+	public function new():Void {
+		slot = NativeThread.GetNamedDataSlot('__hx__Tls');
+	}
+
+	function get_value():T {
+		return NativeThread.GetData(slot);
+	}
+
+	function set_value(value:T):T {
+		NativeThread.SetData(slot, value);
+		return value;
+	}
+}

tests/runci/targets/Cs.hx

@@ -72,6 +72,10 @@ class Cs {
 		runCommand("haxe", ["compile-cs.hxml",'-D','fast_cast']);
 		runCs("bin/cs/bin/Main-Debug.exe", []);
 
+		// changeDirectory(threadsDir);
+		// runCommand("haxe", ["build.hxml", "-cs", "export/cs"]);
+		// runCs("export/cs/bin/Main.exe");
+
 		changeDirectory(miscDir + "csTwoLibs");
 		for (i in 1...5)
 		{