|
|
@@ -0,0 +1,136 @@
|
|
|
+/*
|
|
|
+ * Copyright (c) 2005, The haXe Project Contributors
|
|
|
+ * All rights reserved.
|
|
|
+ * Redistribution and use in source and binary forms, with or without
|
|
|
+ * modification, are permitted provided that the following conditions are met:
|
|
|
+ *
|
|
|
+ * - Redistributions of source code must retain the above copyright
|
|
|
+ * notice, this list of conditions and the following disclaimer.
|
|
|
+ * - Redistributions in binary form must reproduce the above copyright
|
|
|
+ * notice, this list of conditions and the following disclaimer in the
|
|
|
+ * documentation and/or other materials provided with the distribution.
|
|
|
+ *
|
|
|
+ * THIS SOFTWARE IS PROVIDED BY THE HAXE PROJECT CONTRIBUTORS "AS IS" AND ANY
|
|
|
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
|
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
|
+ * DISCLAIMED. IN NO EVENT SHALL THE HAXE PROJECT CONTRIBUTORS BE LIABLE FOR
|
|
|
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
|
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
|
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
|
|
|
+ * DAMAGE.
|
|
|
+ */
|
|
|
+package cpp.vm;
|
|
|
+
|
|
|
+typedef ThreadHandle = Dynamic;
|
|
|
+
|
|
|
+class Thread {
|
|
|
+
|
|
|
+ var handle : ThreadHandle;
|
|
|
+
|
|
|
+ function new(h) {
|
|
|
+ handle = h;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ Send a message to the thread queue. This message can be readed by using [readMessage].
|
|
|
+ **/
|
|
|
+ public function sendMessage( msg : Dynamic ) {
|
|
|
+ thread_send(handle,msg);
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ /**
|
|
|
+ Returns the current thread.
|
|
|
+ **/
|
|
|
+ public static function current() {
|
|
|
+ return new Thread(thread_current());
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ Creates a new thread that will execute the [callb] function, then exit.
|
|
|
+ **/
|
|
|
+ public static function create( callb : Void -> Void ) {
|
|
|
+ return new Thread(thread_create(function(_) { callb(); },[]));
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ Reads a message from the thread queue. If [block] is true, the function
|
|
|
+ blocks until a message is available. If [block] is false, the function
|
|
|
+ returns [null] if no message is available.
|
|
|
+ **/
|
|
|
+ public static function readMessage( block : Bool ) : Dynamic {
|
|
|
+ return thread_read_message(block);
|
|
|
+ }
|
|
|
+
|
|
|
+ function __compare(t) {
|
|
|
+ return untyped handle == t.handle;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ Starts an OS message loop after [osInitialize] has been done.
|
|
|
+ In that state, the UI handled by this thread will be updated and
|
|
|
+ [sync] calls can be performed. The loop returns when [exitLoop] is
|
|
|
+ called for this thread.
|
|
|
+ **
|
|
|
+ public static function osLoop() {
|
|
|
+ if( os_loop == null ) throw "Please call osInitialize() first";
|
|
|
+ os_loop();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ The function [f] will be called by this thread if it's in [osLoop].
|
|
|
+ [sync] returns immediatly. See [osInitialize] remarks.
|
|
|
+ **
|
|
|
+ public function sync( f : Void -> Void ) {
|
|
|
+ os_sync(handle,f);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ The function [f] will be called by this thread and the calling thread
|
|
|
+ will wait until the result is available then return its value.
|
|
|
+ **
|
|
|
+ public function syncResult<T>( f : Void -> T ) : T {
|
|
|
+ if( this == current() )
|
|
|
+ return f();
|
|
|
+ var v = new cpp.vm.Lock();
|
|
|
+ var r = null;
|
|
|
+ sync(function() {
|
|
|
+ r = f();
|
|
|
+ v.release();
|
|
|
+ });
|
|
|
+ v.wait();
|
|
|
+ return r;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ Exit from [osLoop].
|
|
|
+ **
|
|
|
+ public function exitLoop() {
|
|
|
+ os_loop_stop(handle);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ If you want to use the [osLoop], [sync] and [syncResult] methods, you
|
|
|
+ need to call [osInitialize] before creating any thread or calling [current].
|
|
|
+ This will load [os.ndll] library and initialize UI methods for each thread.
|
|
|
+ **
|
|
|
+ public static function osInitialize() {
|
|
|
+ os_loop = cpp.Lib.load("os","os_loop",0);
|
|
|
+ os_loop_stop = cpp.Lib.load("os","os_loop_stop",1);
|
|
|
+ os_sync = cpp.Lib.load("os","os_sync",2);
|
|
|
+ }
|
|
|
+
|
|
|
+ static var os_loop = null;
|
|
|
+ static var os_loop_stop = null;
|
|
|
+ static var os_sync = null;
|
|
|
+ */
|
|
|
+
|
|
|
+ static var thread_create = cpp.Lib.load("std","thread_create",2);
|
|
|
+ static var thread_current = cpp.Lib.load("std","thread_current",0);
|
|
|
+ static var thread_send = cpp.Lib.load("std","thread_send",2);
|
|
|
+ static var thread_read_message = cpp.Lib.load("std","thread_read_message",1);
|
|
|
+
|
|
|
+}
|
Hugh Sanderson