X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fcore%2Fthread.cpp;h=6c542e6a6712d4e19323fbd779c401abd7ea4215;hp=0fc86cf07c7cf18b23289438b9ecb84c5847dd2d;hb=a23176e6d3399bbeb75cf6a173543bf5d5f85187;hpb=47a232c3c19e718a30281d3ada8acc1b6212ea8c

diff --git a/source/core/thread.cpp b/source/core/thread.cpp
index 0fc86cf..6c542e6 100644
--- a/source/core/thread.cpp
+++ b/source/core/thread.cpp
@@ -1,77 +1,91 @@
-/* $Id$
-
-This file is part of libmspcore
-Copyright © 2006 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#ifndef WIN32
+#ifdef WIN32
+#include <windows.h>
+#else
+#include <pthread.h>
 #include <signal.h>
 #endif
+#include <stdexcept>
 #include "thread.h"
 
+using namespace std;
+
 namespace Msp {
 
-/**
-Waits for the thread to exit.  Calling this from the thread will cause a
-deadlock.
-*/
-void Thread::join()
+struct Thread::Private
 {
-	if(!launched_)
-		return;
+#ifdef WIN32
+	HANDLE handle;
+#else
+	pthread_t handle;
+#endif
+
+	Private(): handle(0) { }
 
 #ifdef WIN32
-	WaitForSingleObject(thread_, INFINITE);
+	static DWORD WINAPI
 #else
-	pthread_join(thread_, 0);
+	static void *
 #endif
-	launched_=false;
-}
+	main_wrapper(void *a)
+	{
+		Thread *t = reinterpret_cast<Thread *>(a);
+		t->main();
+		t->state_ = FINISHED;
+		return 0;
+	}
+};
+
+
+Thread::Thread():
+	priv_(new Private),
+	state_(PENDING)
+{ }
 
-/**
-Requests the thread to terminate gracefully.  Currently unimplemented on win32.
-*/
-void Thread::cancel()
+Thread::~Thread()
 {
-#ifndef WIN32 //XXX
-	pthread_cancel(thread_);
-#endif
+	kill();
+	join();
+	delete priv_;
 }
 
-/**
-Violently terminates the thread.
-*/
-void Thread::kill()
+void Thread::join()
 {
+	if(state_>=JOINED)
+		return;
+
 #ifdef WIN32
-	TerminateThread(thread_, 0);
+	WaitForSingleObject(priv_->handle, INFINITE);
 #else
-	pthread_kill(thread_, SIGKILL);
+	pthread_join(priv_->handle, 0);
 #endif
+	state_ = JOINED;
 }
 
-Thread::~Thread()
+void Thread::kill()
 {
-	if(launched_)
-	{
-		kill();
-		join();
-	}
+	if(state_!=RUNNING)
+		return;
+
+#ifdef WIN32
+	TerminateThread(priv_->handle, 0);
+#else
+	pthread_kill(priv_->handle, SIGKILL);
+#endif
+	state_ = KILLED;
 }
 
 void Thread::launch()
 {
-	if(launched_)
-		return;
+	if(state_>=RUNNING)
+		throw logic_error("already launched");
 
 #ifdef WIN32
 	DWORD dummy;  // Win9x needs the lpTthreadId parameter
-	thread_=CreateThread(0, 0, &main_, this, 0, &dummy);
+	priv_->handle = CreateThread(0, 0, &Private::main_wrapper, this, 0, &dummy);
 #else
-	pthread_create(&thread_, 0, &main_, this);
+	pthread_create(&priv_->handle, 0, &Private::main_wrapper, this);
 #endif
-	launched_=true;
+	state_ = RUNNING;
 }
 
 } // namespace Msp