1 files changed, 507 insertions, 0 deletions
diff --git a/src/engine/external/glfw/lib/x11/x11_thread.c b/src/engine/external/glfw/lib/x11/x11_thread.c
new file mode 100644
index 00000000..1a5db7e7
--- /dev/null
+++ b/src/engine/external/glfw/lib/x11/x11_thread.c
@@ -0,0 +1,507 @@
+//========================================================================
+// GLFW - An OpenGL framework
+// File:        x11_thread.c
+// Platform:    X11 (Unix)
+// 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                       ****
+//************************************************************************
+
+#ifdef _GLFW_HAS_PTHREAD
+
+//========================================================================
+// _glfwNewThread() - This is simply a "wrapper" for calling the user
+// thread function.
+//========================================================================
+
+void * _glfwNewThread( void * arg )
+{
+    GLFWthreadfun threadfun;
+    _GLFWthread   *t;
+    pthread_t   posixID;
+
+    // Get current thread ID
+    posixID = pthread_self();
+
+    // Enter critical section
+    ENTER_THREAD_CRITICAL_SECTION
+
+    // Loop through entire list of threads to find the matching POSIX
+    // thread ID
+    for( t = &_glfwThrd.First; t != NULL; t = t->Next )
+    {
+        if( t->PosixID == posixID )
+        {
+            break;
+        }
+    }
+    if( t == NULL )
+    {
+        LEAVE_THREAD_CRITICAL_SECTION
+        return NULL;
+    }
+
+    // Get user thread function pointer
+    threadfun = t->Function;
+
+    // Leave critical section
+    LEAVE_THREAD_CRITICAL_SECTION
+
+    // Call the user thread function
+    threadfun( arg );
+
+    // Remove thread from thread list
+    ENTER_THREAD_CRITICAL_SECTION
+    _glfwRemoveThread( t );
+    LEAVE_THREAD_CRITICAL_SECTION
+
+    // When the thread function returns, the thread will die...
+    return NULL;
+}
+
+#endif // _GLFW_HAS_PTHREAD
+
+
+
+//************************************************************************
+//****               Platform implementation functions                ****
+//************************************************************************
+
+//========================================================================
+// _glfwPlatformCreateThread() - Create a new thread
+//========================================================================
+
+GLFWthread _glfwPlatformCreateThread( GLFWthreadfun fun, void *arg )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    GLFWthread  ID;
+    _GLFWthread *t;
+    int         result;
+
+    // Enter critical section
+    ENTER_THREAD_CRITICAL_SECTION
+
+    // Create a new thread information memory area
+    t = (_GLFWthread *) malloc( sizeof(_GLFWthread) );
+    if( t == NULL )
+    {
+        // Leave critical section
+        LEAVE_THREAD_CRITICAL_SECTION
+        return -1;
+    }
+
+    // Get a new unique thread id
+    ID = _glfwThrd.NextID ++;
+
+    // Store thread information in the thread list
+    t->Function = fun;
+    t->ID       = ID;
+
+    // Create thread
+    result = pthread_create(
+        &t->PosixID,      // Thread handle
+        NULL,             // Default thread attributes
+        _glfwNewThread,   // Thread function (a wrapper function)
+        (void *)arg       // Argument to thread is user argument
+    );
+
+    // Did the thread creation fail?
+    if( result != 0 )
+    {
+        free( (void *) t );
+        LEAVE_THREAD_CRITICAL_SECTION
+        return -1;
+    }
+
+    // Append thread to thread list
+    _glfwAppendThread( t );
+
+    // Leave critical section
+    LEAVE_THREAD_CRITICAL_SECTION
+
+    // Return the GLFW thread ID
+    return ID;
+
+#else
+
+    return -1;
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformDestroyThread() - Kill a thread. NOTE: THIS IS A VERY
+// DANGEROUS OPERATION, AND SHOULD NOT BE USED EXCEPT IN EXTREME
+// SITUATIONS!
+//========================================================================
+
+void _glfwPlatformDestroyThread( GLFWthread ID )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    _GLFWthread *t;
+
+    // Enter critical section
+    ENTER_THREAD_CRITICAL_SECTION
+
+    // Get thread information pointer
+    t = _glfwGetThreadPointer( ID );
+    if( t == NULL )
+    {
+        LEAVE_THREAD_CRITICAL_SECTION
+        return;
+    }
+
+    // Simply murder the process, no mercy!
+    pthread_kill( t->PosixID, SIGKILL );
+
+    // Remove thread from thread list
+    _glfwRemoveThread( t );
+
+    // Leave critical section
+    LEAVE_THREAD_CRITICAL_SECTION
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformWaitThread() - Wait for a thread to die
+//========================================================================
+
+int _glfwPlatformWaitThread( GLFWthread ID, int waitmode )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    pthread_t   thread;
+    _GLFWthread *t;
+
+    // Enter critical section
+    ENTER_THREAD_CRITICAL_SECTION
+
+    // Get thread information pointer
+    t = _glfwGetThreadPointer( ID );
+
+    // Is the thread already dead?
+    if( t == NULL )
+    {
+        LEAVE_THREAD_CRITICAL_SECTION
+        return GL_TRUE;
+    }
+
+    // If got this far, the thread is alive => polling returns FALSE
+    if( waitmode == GLFW_NOWAIT )
+    {
+        LEAVE_THREAD_CRITICAL_SECTION
+        return GL_FALSE;
+    }
+
+    // Get thread handle
+    thread = t->PosixID;
+
+    // Leave critical section
+    LEAVE_THREAD_CRITICAL_SECTION
+
+    // Wait for thread to die
+    (void) pthread_join( thread, NULL );
+
+    return GL_TRUE;
+
+#else
+
+    return GL_TRUE;
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformGetThreadID() - Return the thread ID for the current
+// thread
+//========================================================================
+
+GLFWthread _glfwPlatformGetThreadID( void )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    _GLFWthread *t;
+    GLFWthread  ID = -1;
+    pthread_t   posixID;
+
+    // Get current thread ID
+    posixID = pthread_self();
+
+    // Enter critical section
+    ENTER_THREAD_CRITICAL_SECTION
+
+    // Loop through entire list of threads to find the matching POSIX
+    // thread ID
+    for( t = &_glfwThrd.First; t != NULL; t = t->Next )
+    {
+        if( t->PosixID == posixID )
+        {
+            ID = t->ID;
+            break;
+        }
+    }
+
+    // Leave critical section
+    LEAVE_THREAD_CRITICAL_SECTION
+
+    // Return the found GLFW thread identifier
+    return ID;
+
+#else
+
+    return 0;
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformCreateMutex() - Create a mutual exclusion object
+//========================================================================
+
+GLFWmutex _glfwPlatformCreateMutex( void )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    pthread_mutex_t *mutex;
+
+    // Allocate memory for mutex
+    mutex = (pthread_mutex_t *) malloc( sizeof( pthread_mutex_t ) );
+    if( !mutex )
+    {
+        return NULL;
+    }
+
+    // Initialise a mutex object
+    (void) pthread_mutex_init( mutex, NULL );
+
+    // Cast to GLFWmutex and return
+    return (GLFWmutex) mutex;
+
+#else
+
+    return (GLFWmutex) 0;
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformDestroyMutex() - Destroy a mutual exclusion object
+//========================================================================
+
+void _glfwPlatformDestroyMutex( GLFWmutex mutex )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    // Destroy the mutex object
+    pthread_mutex_destroy( (pthread_mutex_t *) mutex );
+
+    // Free memory for mutex object
+    free( (void *) mutex );
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformLockMutex() - Request access to a mutex
+//========================================================================
+
+void _glfwPlatformLockMutex( GLFWmutex mutex )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    // Wait for mutex to be released
+    (void) pthread_mutex_lock( (pthread_mutex_t *) mutex );
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformUnlockMutex() - Release a mutex
+//========================================================================
+
+void _glfwPlatformUnlockMutex( GLFWmutex mutex )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    // Release mutex
+    pthread_mutex_unlock( (pthread_mutex_t *) mutex );
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformCreateCond() - Create a new condition variable object
+//========================================================================
+
+GLFWcond _glfwPlatformCreateCond( void )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    pthread_cond_t *cond;
+
+    // Allocate memory for condition variable
+    cond = (pthread_cond_t *) malloc( sizeof(pthread_cond_t) );
+    if( !cond )
+    {
+        return NULL;
+    }
+
+    // Initialise condition variable
+    (void) pthread_cond_init( cond, NULL );
+
+    // Cast to GLFWcond and return
+    return (GLFWcond) cond;
+
+#else
+
+    return (GLFWcond) 0;
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformDestroyCond() - Destroy a condition variable object
+//========================================================================
+
+void _glfwPlatformDestroyCond( GLFWcond cond )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    // Destroy the condition variable object
+    (void) pthread_cond_destroy( (pthread_cond_t *) cond );
+
+    // Free memory for condition variable object
+    free( (void *) cond );
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformWaitCond() - Wait for a condition to be raised
+//========================================================================
+
+void _glfwPlatformWaitCond( GLFWcond cond, GLFWmutex mutex,
+    double timeout )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    struct timeval  currenttime;
+    struct timespec wait;
+    long dt_sec, dt_usec;
+
+    // Select infinite or timed wait
+    if( timeout >= GLFW_INFINITY )
+    {
+        // Wait for condition (infinite wait)
+        (void) pthread_cond_wait( (pthread_cond_t *) cond,
+                  (pthread_mutex_t *) mutex );
+    }
+    else
+    {
+        // Set timeout time, relatvie to current time
+        gettimeofday( &currenttime, NULL );
+        dt_sec  = (long) timeout;
+        dt_usec = (long) ((timeout - (double)dt_sec) * 1000000.0);
+        wait.tv_nsec = (currenttime.tv_usec + dt_usec) * 1000L;
+        if( wait.tv_nsec > 1000000000L )
+        {
+            wait.tv_nsec -= 1000000000L;
+            dt_sec ++;
+        }
+        wait.tv_sec  = currenttime.tv_sec + dt_sec;
+
+        // Wait for condition (timed wait)
+        (void) pthread_cond_timedwait( (pthread_cond_t *) cond,
+                   (pthread_mutex_t *) mutex, &wait );
+    }
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformSignalCond() - Signal a condition to one waiting thread
+//========================================================================
+
+void _glfwPlatformSignalCond( GLFWcond cond )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    // Signal condition
+    (void) pthread_cond_signal( (pthread_cond_t *) cond );
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformBroadcastCond() - Broadcast a condition to all waiting
+// threads
+//========================================================================
+
+void _glfwPlatformBroadcastCond( GLFWcond cond )
+{
+#ifdef _GLFW_HAS_PTHREAD
+
+    // Broadcast condition
+    (void) pthread_cond_broadcast( (pthread_cond_t *) cond );
+
+#endif // _GLFW_HAS_PTHREAD
+}
+
+
+//========================================================================
+// _glfwPlatformGetNumberOfProcessors() - Return the number of processors
+// in the system.
+//========================================================================
+
+int _glfwPlatformGetNumberOfProcessors( void )
+{
+    int n;
+
+    // Get number of processors online
+    _glfw_numprocessors( n );
+    return n;
+}