From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 24 Aug 2006 13:27:46 +0000 (+0000)
Subject: Use an extra bool variable to indicate thread validity
X-Git-Tag: 1.0~48
X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=commitdiff_plain;h=64f0b85e4d5b0cbf1dc76eb3a5342403247576fe

Use an extra bool variable to indicate thread validity
---

diff --git a/source/thread.cpp b/source/thread.cpp
index 3846573..6bc7444 100644
--- a/source/thread.cpp
+++ b/source/thread.cpp
@@ -10,18 +10,18 @@ namespace Msp {
 
 void *Thread::join()
 {
-	if(!thread_)
+	if(!valid_)
 		return 0;
 
 	void *result;
 	pthread_join(thread_, &result);
-	thread_=0;
+	valid_=false;
 	return result;
 }
 
 Thread::~Thread()
 {
-	if(thread_)
+	if(valid)
 		kill(SIGKILL);
 }
 
diff --git a/source/thread.h b/source/thread.h
index a115853..b9910ff 100644
--- a/source/thread.h
+++ b/source/thread.h
@@ -17,12 +17,13 @@ public:
 	void kill(int s)   { pthread_kill(thread_, s); }
 	virtual ~Thread();
 protected:
-	Thread()           { }
-	void launch()      { pthread_create(&thread_, 0, &main_, this); }
+	Thread(): valid_(false) { }
+	void launch()      { if(!valid_) pthread_create(&thread_, 0, &main_, this); }
 	virtual void *main()=0;
 	void exit(void *r) { pthread_exit(r); }
 private:
 	pthread_t thread_;
+	bool      valid_;
 
 	Thread(const Thread &);
 	Thread &operator=(const Thread &);