1 files changed, 340 insertions, 0 deletions
diff --git a/src/engine/external/glfw/lib/thread.c b/src/engine/external/glfw/lib/thread.c
new file mode 100644
index 00000000..8094332c
--- /dev/null
+++ b/src/engine/external/glfw/lib/thread.c
@@ -0,0 +1,340 @@
+//========================================================================
+// GLFW - An OpenGL framework
+// File:        thread.c
+// Platform:    Any
+// API version: 2.6
+// WWW:         http://glfw.sourceforge.net
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Camilla Berglund
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+
+
+//************************************************************************
+//****                  GLFW internal functions                       ****
+//************************************************************************
+
+//========================================================================
+// _glfwGetThreadPointer() - Find pointer to thread with a matching ID
+//========================================================================
+
+_GLFWthread * _glfwGetThreadPointer( int ID )
+{
+    _GLFWthread *t;
+
+    for( t = &_glfwThrd.First; t != NULL; t = t->Next )
+    {
+        if( t->ID == ID )
+        {
+            break;
+        }
+    }
+
+    return t;
+}
+
+
+//========================================================================
+// _glfwAppendThread() - Append thread to thread list
+//========================================================================
+
+void _glfwAppendThread( _GLFWthread * t )
+{
+    _GLFWthread *t_tmp;
+
+    t_tmp = &_glfwThrd.First;
+    while( t_tmp->Next != NULL )
+    {
+        t_tmp = t_tmp->Next;
+    }
+    t_tmp->Next = t;
+    t->Previous = t_tmp;
+    t->Next     = NULL;
+}
+
+
+//========================================================================
+// _glfwRemoveThread() - Remove thread from thread list
+//========================================================================
+
+void _glfwRemoveThread( _GLFWthread * t )
+{
+    if( t->Previous != NULL )
+    {
+        t->Previous->Next = t->Next;
+    }
+    if( t->Next != NULL )
+    {
+        t->Next->Previous = t->Previous;
+    }
+    free( (void *) t );
+}
+
+
+
+//************************************************************************
+//****                     GLFW user functions                        ****
+//************************************************************************
+
+//========================================================================
+// glfwCreateThread() - Create a new thread
+//========================================================================
+
+GLFWAPI GLFWthread GLFWAPIENTRY glfwCreateThread( GLFWthreadfun fun,
+    void *arg )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return -1;
+    }
+
+    // Return the GLFW thread ID
+    return _glfwPlatformCreateThread( fun, arg );
+}
+
+
+//========================================================================
+// glfwDestroyThread() - Kill a thread. NOTE: THIS IS A VERY DANGEROUS
+// OPERATION, AND SHOULD NOT BE USED EXCEPT IN EXTREME SITUATIONS!
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwDestroyThread( GLFWthread ID )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return;
+    }
+
+    // Is it a valid thread? (killing the main thread is not allowed)
+    if( ID < 1 )
+    {
+        return;
+    }
+
+    _glfwPlatformDestroyThread( ID );
+}
+
+
+//========================================================================
+// glfwWaitThread() - Wait for a thread to die
+//========================================================================
+
+GLFWAPI int GLFWAPIENTRY glfwWaitThread( GLFWthread ID, int waitmode )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return GL_TRUE;
+    }
+
+    // Is it a valid thread? (waiting for the main thread is not allowed)
+    if( ID < 1 )
+    {
+        return GL_TRUE;
+    }
+
+    return _glfwPlatformWaitThread( ID, waitmode );
+}
+
+
+//========================================================================
+// glfwGetThreadID() - Return the thread ID for the current thread
+//========================================================================
+
+GLFWAPI GLFWthread GLFWAPIENTRY glfwGetThreadID( void )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return 0;
+    }
+
+    return _glfwPlatformGetThreadID();
+}
+
+
+//========================================================================
+// glfwCreateMutex() - Create a mutual exclusion object
+//========================================================================
+
+GLFWAPI GLFWmutex GLFWAPIENTRY glfwCreateMutex( void )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return (GLFWmutex) 0;
+    }
+
+    return _glfwPlatformCreateMutex();
+}
+
+
+//========================================================================
+// glfwDestroyMutex() - Destroy a mutual exclusion object
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwDestroyMutex( GLFWmutex mutex )
+{
+    // Initialized & valid mutex (no real way of assuring this)?
+    if( !_glfwInitialized || !mutex )
+    {
+        return;
+    }
+
+    _glfwPlatformDestroyMutex( mutex );
+}
+
+
+//========================================================================
+// glfwLockMutex() - Request access to a mutex
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwLockMutex( GLFWmutex mutex )
+{
+    // Initialized & valid mutex (no real way of assuring this)?
+    if( !_glfwInitialized && !mutex )
+    {
+        return;
+    }
+
+    _glfwPlatformLockMutex( mutex );
+}
+
+
+//========================================================================
+// glfwUnlockMutex() - Release a mutex
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwUnlockMutex( GLFWmutex mutex )
+{
+    // Initialized & valid mutex (no real way of assuring this)?
+    if( !_glfwInitialized && !mutex )
+    {
+        return;
+    }
+
+    _glfwPlatformUnlockMutex( mutex );
+}
+
+
+//========================================================================
+// glfwCreateCond() - Create a new condition variable object
+//========================================================================
+
+GLFWAPI GLFWcond GLFWAPIENTRY glfwCreateCond( void )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return (GLFWcond) 0;
+    }
+
+    return _glfwPlatformCreateCond();
+}
+
+
+//========================================================================
+// glfwDestroyCond() - Destroy a condition variable object
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwDestroyCond( GLFWcond cond )
+{
+    // Initialized & valid condition variable?
+    if( !_glfwInitialized || !cond )
+    {
+        return;
+    }
+
+    _glfwPlatformDestroyCond( cond );
+}
+
+
+//========================================================================
+// glfwWaitCond() - Wait for a condition to be raised
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwWaitCond( GLFWcond cond, GLFWmutex mutex,
+    double timeout )
+{
+    // Initialized & valid condition variable and mutex?
+    if( !_glfwInitialized || !cond || !mutex )
+    {
+        return;
+    }
+
+    _glfwPlatformWaitCond( cond, mutex, timeout );
+}
+
+
+//========================================================================
+// glfwSignalCond() - Signal a condition to one waiting thread
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwSignalCond( GLFWcond cond )
+{
+    // Initialized & valid condition variable?
+    if( !_glfwInitialized || !cond )
+    {
+        return;
+    }
+
+    _glfwPlatformSignalCond( cond );
+}
+
+
+//========================================================================
+// glfwBroadcastCond() - Broadcast a condition to all waiting threads
+//========================================================================
+
+GLFWAPI void GLFWAPIENTRY glfwBroadcastCond( GLFWcond cond )
+{
+    // Initialized & valid condition variable?
+    if( !_glfwInitialized || !cond )
+    {
+        return;
+    }
+
+    _glfwPlatformBroadcastCond( cond );
+}
+
+
+//========================================================================
+// glfwGetNumberOfProcessors() - Return the number of processors in the
+// system. This information can be useful for determining the optimal
+// number of threads to use for performing a certain task.
+//========================================================================
+
+GLFWAPI int GLFWAPIENTRY glfwGetNumberOfProcessors( void )
+{
+    // Is GLFW initialized?
+    if( !_glfwInitialized )
+    {
+        return 0;
+    }
+
+    return _glfwPlatformGetNumberOfProcessors();
+}