{--
JVM-Bridge -- bridge from FP languages and others to the Java VM
Copyright (C) 2001 Ashley Yakeley <ashley@semantic.org>

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--}

module Foreign.JavaVM.VM.Thread where
	{
	import Foreign.JavaVM.VM.Ref;
	import Foreign.JavaVM.VM.Types;
	import Foreign.JavaVM.Raw;
	
	vmSynchronized :: VMRef -> IO a -> VM a;
	vmSynchronized lock foo = withVMRefRawGlobal lock (\rawLock -> (do
		{
		rawMonitorEnter ?jvmenv rawLock;
		result <- foo;
		rawMonitorExit ?jvmenv rawLock;
		return result;
		}));
	
	vmAttachedThread :: JavaVM -> VM a -> IO a;
	vmAttachedThread vm foo = do
		{
		env <- rawAttachCurrentThread vm;
		result <- let {?jvmenv = env;} in foo;
		rawDetachCurrentThread vm;
		return result;
		};
	}