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+/*******************************************************************
+ *
+ * ttmutex.c 1.0
+ *
+ * Mutual exclusion object, single-threaded implementation
+ *
+ * Copyright 1996-2000 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used
+ * modified and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ * NOTE: This is a generic non-functional implementation
+ * that you are welcome to refine for your own system.
+ *
+ * Please name your system-specific source with a
+ * different name (like ttmutex-os2.c or ttmutex-linux.c)
+ * and change your makefile accordingly.
+ *
+ ******************************************************************/
+
+#include "ttmutex.h"
+
+
+/* required by the tracing mode */
+#undef TT_COMPONENT
+#define TT_COMPONENT trace_mutex
+
+
+/* ANSI C prevents the compilation of empty units. We thus introduce */
+/* a dummy typedef to get rid of compiler warnings/errors. */
+/* Note that gcc's -ansi -pedantic does not report any error here. */
+/* Watcom, VC++ or Borland C++ do however. */
+
+ typedef void _ttmutex_to_satisfy_ANSI_C_;
+
+
+#ifdef TT_CONFIG_OPTION_THREAD_SAFE
+
+ FT_INTERNAL_FUNC( void )
+ TT_Mutex_Create( TMutex* mutex )
+ {
+ *mutex = (void*)-1;
+ /* Replace this line with your own mutex creation code */
+ }
+
+
+ FT_INTERNAL_FUNC( void )
+ TT_Mutex_Delete( TMutex* mutex )
+ {
+ *mutex = (void*)0;
+ /* Replace this line with your own mutex destruction code */
+ }
+
+
+ FT_INTERNAL_FUNC( void )
+ TT_Mutex_Lock( TMutex* mutex )
+ {
+ /* NOTE: It is legal to call this function with a NULL argument */
+ /* in which case an immediate return is appropriate. */
+ if ( !mutex )
+ return;
+
+ ; /* Insert your own mutex locking code here */
+ }
+
+
+ FT_INTERNAL_FUNC( void )
+ TT_Mutex_Release( TMutex* mutex )
+ {
+ /* NOTE: It is legal to call this function with a NULL argument */
+ /* in which case an immediate return is appropriate */
+ if ( !mutex )
+ return;
+
+ ; /* Insert your own mutex release code here */
+ }
+
+#endif /* TT_CONFIG_OPTION_THREAD_SAFE */
+
+
+/* END */