From 2aa14bb24c8f7b4f60bd22ad3667627f837d8974 Mon Sep 17 00:00:00 2001
From: nillerusr <nillerusr@gmail.com>
Date: Thu, 16 Feb 2023 17:30:53 +0300
Subject: [PATCH] restore threadtools and vstdlib from 12716fd commit

---
 public/tier0/threadtools.h | 44 +++++++++++++++++++++++++++----
 tier0/threadtools.cpp      | 53 --------------------------------------
 vstdlib/jobthread.cpp      | 20 ++++----------
 3 files changed, 44 insertions(+), 73 deletions(-)

diff --git a/public/tier0/threadtools.h b/public/tier0/threadtools.h
index 2b18dda7..b7216193 100644
--- a/public/tier0/threadtools.h
+++ b/public/tier0/threadtools.h
@@ -52,6 +52,12 @@
 #pragma once
 #pragma warning(push)
 #pragma warning(disable:4251)
+
+extern "C"
+{
+	void __declspec(dllimport) __stdcall Sleep( unsigned long );
+}
+
 #endif
 
 #ifdef COMPILER_MSVC64
@@ -194,8 +200,6 @@ PLATFORM_INTERFACE bool ReleaseThreadHandle( ThreadHandle_t );
 
 //-----------------------------------------------------------------------------
 
-PLATFORM_INTERFACE void ThreadSleep(unsigned duration = 0);
-PLATFORM_INTERFACE void ThreadNanoSleep(unsigned ns);
 PLATFORM_INTERFACE ThreadId_t ThreadGetCurrentId();
 PLATFORM_INTERFACE ThreadHandle_t ThreadGetCurrentHandle();
 PLATFORM_INTERFACE int ThreadGetPriority( ThreadHandle_t hThread = NULL );
@@ -229,10 +233,10 @@ inline void ThreadPause()
 {
 #if defined( COMPILER_PS3 )
 	__db16cyc();
-#elif defined(__arm__) || defined(__aarch64__)
-        sched_yield();
-#elif defined( COMPILER_GCC )
+#elif defined( COMPILER_GCC ) && (defined( __i386__ ) || defined( __x86_64__ ))
 	__asm __volatile( "pause" );
+#elif defined( POSIX )
+        sched_yield();
 #elif defined ( COMPILER_MSVC64 )
 	_mm_pause();
 #elif defined( COMPILER_MSVC32 )
@@ -247,6 +251,36 @@ inline void ThreadPause()
 #endif
 }
 
+inline void ThreadSleep(unsigned nMilliseconds = 0)
+{
+	if( nMilliseconds == 0 )
+	{
+		ThreadPause();
+		return;
+        }
+
+#ifdef _WIN32
+
+#ifdef _WIN32_PC
+        static bool bInitialized = false;
+        if ( !bInitialized )
+        {
+                bInitialized = true;
+                // Set the timer resolution to 1 ms (default is 10.0, 15.6, 2.5, 1.0 or
+                // some other value depending on hardware and software) so that we can
+                // use Sleep( 1 ) to avoid wasting CPU time without missing our frame
+                // rate.
+                timeBeginPeriod( 1 );
+        }
+#endif
+	Sleep( nMilliseconds );
+#elif PS3
+	sys_timer_usleep( nMilliseconds * 1000 );
+#elif defined(POSIX)
+        usleep( nMilliseconds * 1000 );
+#endif
+}
+
 PLATFORM_INTERFACE bool ThreadJoin( ThreadHandle_t, unsigned timeout = TT_INFINITE );
 
 PLATFORM_INTERFACE void ThreadSetDebugName( ThreadHandle_t hThread, const char *pszName );
diff --git a/tier0/threadtools.cpp b/tier0/threadtools.cpp
index b0dbb645..06c8296f 100644
--- a/tier0/threadtools.cpp
+++ b/tier0/threadtools.cpp
@@ -485,59 +485,6 @@ bool ReleaseThreadHandle( ThreadHandle_t hThread )
 //
 //-----------------------------------------------------------------------------
 
-void ThreadSleep(unsigned nMilliseconds)
-{
-#ifdef _WIN32
-
-#ifdef _WIN32_PC
-	static bool bInitialized = false;
-	if ( !bInitialized )
-	{
-		bInitialized = true;
-		// Set the timer resolution to 1 ms (default is 10.0, 15.6, 2.5, 1.0 or
-		// some other value depending on hardware and software) so that we can
-		// use Sleep( 1 ) to avoid wasting CPU time without missing our frame
-		// rate.
-		timeBeginPeriod( 1 );
-	}
-#endif
-
-	Sleep( nMilliseconds );
-#elif PS3
-	if( nMilliseconds == 0 )
-	{
-		// sys_ppu_thread_yield doesn't seem to function properly, so sleep instead.
-//		sys_timer_usleep( 60 );
-		sys_ppu_thread_yield();
-	}
-	else
-	{
-		sys_timer_usleep( nMilliseconds * 1000 );
-	}
-#elif defined(POSIX)
-   usleep( nMilliseconds * 1000 ); 
-#endif
-}
-
-//-----------------------------------------------------------------------------
-void ThreadNanoSleep(unsigned ns)
-{
-#ifdef _WIN32
-	// ceil
-	Sleep( ( ns + 999 ) / 1000 );
-#elif PS3
-	sys_timer_usleep( ns );
-#elif defined(POSIX)
-	struct timespec tm;
-	tm.tv_sec = 0;
-	tm.tv_nsec = ns;
-	nanosleep( &tm, NULL ); 
-#endif
-}
-
-
-//-----------------------------------------------------------------------------
-
 #ifndef ThreadGetCurrentId
 ThreadId_t ThreadGetCurrentId()
 {
diff --git a/vstdlib/jobthread.cpp b/vstdlib/jobthread.cpp
index 922b770f..634d5358 100644
--- a/vstdlib/jobthread.cpp
+++ b/vstdlib/jobthread.cpp
@@ -214,7 +214,11 @@ public:
 	//-----------------------------------------------------
 	virtual int YieldWait( CThreadEvent **pEvents, int nEvents, bool bWaitAll = true, unsigned timeout = TT_INFINITE );
 	virtual int YieldWait( CJob **, int nJobs, bool bWaitAll = true, unsigned timeout = TT_INFINITE );
-	void Yield( unsigned timeout );
+	inline void Yield( unsigned timeout )
+	{
+		Assert( ThreadInMainThread() );
+		ThreadSleep( timeout );
+	}
 
 	//-----------------------------------------------------
 	// Add a native job to the queue (master thread)
@@ -656,20 +660,6 @@ int CThreadPool::YieldWait( CJob **ppJobs, int nJobs, bool bWaitAll, unsigned ti
 	return YieldWait( handles.Base(), handles.Count(), bWaitAll, timeout);
 }
 
-//---------------------------------------------------------
-
-void CThreadPool::Yield( unsigned timeout )
-{
-	// @MULTICORE (toml 10/24/2006): not implemented
-	Assert( ThreadInMainThread() );
-	if ( !ThreadInMainThread() )
-	{
-		ThreadSleep( timeout );
-		return;
-	}
-	ThreadSleep( timeout );
-}
-
 //---------------------------------------------------------
 // Add a job to the queue
 //---------------------------------------------------------