From 05bc2ed7cbe07cb4cd535932f10778b35f72e944 Mon Sep 17 00:00:00 2001
From: Michael Lutz <michi@icosahedron.de>
Date: Sun, 17 Mar 2019 01:59:46 +0100
Subject: Codechange: Replace custom thread code with C++11 thread objects.

We assume a conforming C++11 compiler environment that has a valid <thread>-header.
Failure to run a real thread is handled gracefully.
---
 src/thread/thread_pthread.cpp | 110 ------------------------------------------
 1 file changed, 110 deletions(-)
 delete mode 100644 src/thread/thread_pthread.cpp

(limited to 'src/thread/thread_pthread.cpp')

diff --git a/src/thread/thread_pthread.cpp b/src/thread/thread_pthread.cpp
deleted file mode 100644
index 50fefb531..000000000
--- a/src/thread/thread_pthread.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-/* $Id$ */
-
-/*
- * This file is part of OpenTTD.
- * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
- * OpenTTD 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 General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/** @file thread_pthread.cpp POSIX pthread implementation of Threads. */
-
-#include "../stdafx.h"
-#include "thread.h"
-#include <pthread.h>
-#include <errno.h>
-
-#if defined(__APPLE__)
-#include "../os/macosx/macos.h"
-#endif
-
-#include "../safeguards.h"
-
-/**
- * POSIX pthread version for ThreadObject.
- */
-class ThreadObject_pthread : public ThreadObject {
-private:
-	pthread_t thread;    ///< System thread identifier.
-	OTTDThreadFunc proc; ///< External thread procedure.
-	void *param;         ///< Parameter for the external thread procedure.
-	bool self_destruct;  ///< Free ourselves when done?
-	const char *name;    ///< Name for the thread
-
-public:
-	/**
-	 * Create a pthread and start it, calling proc(param).
-	 */
-	ThreadObject_pthread(OTTDThreadFunc proc, void *param, bool self_destruct, const char *name) :
-		thread(0),
-		proc(proc),
-		param(param),
-		self_destruct(self_destruct),
-		name(name)
-	{
-		pthread_create(&this->thread, NULL, &stThreadProc, this);
-	}
-
-	bool Exit() override
-	{
-		assert(pthread_self() == this->thread);
-		/* For now we terminate by throwing an error, gives much cleaner cleanup */
-		throw OTTDThreadExitSignal();
-	}
-
-	void Join() override
-	{
-		/* You cannot join yourself */
-		assert(pthread_self() != this->thread);
-		pthread_join(this->thread, NULL);
-		this->thread = 0;
-	}
-private:
-	/**
-	 * On thread creation, this function is called, which calls the real startup
-	 *  function. This to get back into the correct instance again.
-	 */
-	static void *stThreadProc(void *thr)
-	{
-		ThreadObject_pthread *self = (ThreadObject_pthread *) thr;
-#if defined(__GLIBC__)
-#if __GLIBC_PREREQ(2, 12)
-		if (self->name) {
-			pthread_setname_np(pthread_self(), self->name);
-		}
-#endif
-#endif
-#if defined(__APPLE__)
-		MacOSSetThreadName(self->name);
-#endif
-		self->ThreadProc();
-		pthread_exit(NULL);
-	}
-
-	/**
-	 * A new thread is created, and this function is called. Call the custom
-	 *  function of the creator of the thread.
-	 */
-	void ThreadProc()
-	{
-		/* Call the proc of the creator to continue this thread */
-		try {
-			this->proc(this->param);
-		} catch (OTTDThreadExitSignal) {
-		} catch (...) {
-			NOT_REACHED();
-		}
-
-		if (self_destruct) {
-			pthread_detach(pthread_self());
-			delete this;
-		}
-	}
-};
-
-/* static */ bool ThreadObject::New(OTTDThreadFunc proc, void *param, ThreadObject **thread, const char *name)
-{
-	ThreadObject *to = new ThreadObject_pthread(proc, param, thread == NULL, name);
-	if (thread != NULL) *thread = to;
-	return true;
-}
-- 
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