X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fthreadengines%2Fthreadengine_pthread.h;h=d1810c812320317243f2745c2cff59f7e4734cfe;hb=219d0fa1a64c5c2c155942ebc52543dd956519b1;hp=5168ed238cb53dbb5f4862af37efa151448bece9;hpb=74ee9af96639323d852a8b15be72ee9974e0a826;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/include/threadengines/threadengine_pthread.h b/include/threadengines/threadengine_pthread.h
index 5168ed238..d1810c812 100644
--- a/include/threadengines/threadengine_pthread.h
+++ b/include/threadengines/threadengine_pthread.h
@@ -1,8 +1,11 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
+ *   Copyright (C) 2014 Attila Molnar <attilamolnar@hush.com>
+ *   Copyright (C) 2013 Sadie Powell <sadie@witchery.services>
+ *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- *   Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
+ *   Copyright (C) 2008, 2010 Craig Edwards <brain@inspircd.org>
  *
  * This file is part of InspIRCd.  InspIRCd is free software: you can
  * redistribute it and/or modify it under the terms of the GNU General Public
@@ -18,8 +21,7 @@
  */
 
 
-#ifndef THREADENGINE_PTHREAD_H
-#define THREADENGINE_PTHREAD_H
+#pragma once
 
 #include <pthread.h>
 #include "typedefs.h"
@@ -37,14 +39,12 @@
 class CoreExport ThreadEngine
 {
  public:
-
-	/** Constructor.
-	 */
-	ThreadEngine();
-
-	/** Destructor
+	/** Per-thread state, present in each Thread object, managed by the ThreadEngine
 	 */
-	virtual ~ThreadEngine();
+	struct ThreadState
+	{
+		pthread_t pthread_id;
+	};
 
 	/** Create a new thread. This takes an already allocated
 	 * Thread* pointer and initializes it to use this threading
@@ -54,33 +54,30 @@ class CoreExport ThreadEngine
 	 */
 	void Start(Thread* thread_to_init);
 
-	/** Returns the thread engine's name for display purposes
-	 * @return The thread engine name
+	/** Stop a thread gracefully.
+	 * First, this function asks the thread to terminate by calling Thread::SetExitFlag().
+	 * Next, it waits until the thread terminates (on the operating system level). Finally,
+	 * all OS-level resources associated with the thread are released. The Thread instance
+	 * passed to the function is NOT freed.
+	 * When this function returns, the thread is stopped and you can destroy it or restart it
+	 * at a later point.
+	 * Stopping a thread that is not running is a bug.
+	 * @param thread The thread to stop.
 	 */
-	const std::string GetName()
-	{
-		return "posix-thread";
-	}
-};
-
-class CoreExport ThreadData
-{
- public:
-	pthread_t pthread_id;
-	void FreeThread(Thread* toFree);
+	void Stop(Thread* thread);
 };
 
 /** The Mutex class represents a mutex, which can be used to keep threads
  * properly synchronised. Use mutexes sparingly, as they are a good source
  * of thread deadlocks etc, and should be avoided except where absolutely
- * neccessary. Note that the internal behaviour of the mutex varies from OS
+ * necessary. Note that the internal behaviour of the mutex varies from OS
  * to OS depending on the thread engine, for example in windows a Mutex
  * in InspIRCd uses critical sections, as they are faster and simpler to
  * manage.
  */
 class CoreExport Mutex
 {
- private:
+ protected:
 	pthread_mutex_t putex;
  public:
 	/** Constructor.
@@ -109,33 +106,20 @@ class CoreExport Mutex
 	}
 };
 
-class ThreadQueueData
+class ThreadQueueData : public Mutex
 {
-	pthread_mutex_t mutex;
 	pthread_cond_t cond;
  public:
 	ThreadQueueData()
 	{
-		pthread_mutex_init(&mutex, NULL);
 		pthread_cond_init(&cond, NULL);
 	}
 
 	~ThreadQueueData()
 	{
-		pthread_mutex_destroy(&mutex);
 		pthread_cond_destroy(&cond);
 	}
 
-	void Lock()
-	{
-		pthread_mutex_lock(&mutex);
-	}
-
-	void Unlock()
-	{
-		pthread_mutex_unlock(&mutex);
-	}
-
 	void Wakeup()
 	{
 		pthread_cond_signal(&cond);
@@ -143,7 +127,7 @@ class ThreadQueueData
 
 	void Wait()
 	{
-		pthread_cond_wait(&cond, &mutex);
+		pthread_cond_wait(&cond, &putex);
 	}
 };
 
@@ -153,6 +137,3 @@ class ThreadSignalData
  public:
 	ThreadSignalSocket* sock;
 };
-
-
-#endif