Significant improvements in alternative scheduler.

Isolate the generic thread and heap code
Tidyup's.
Generic threading now working for x86, cortex-m0->m7.

1 files changed, 62 insertions, 0 deletions

diff --git a/src/gos/gos_x_heap.h b/src/gos/gos_x_heap.h
new file mode 100644
index 00000000..3612989c
--- /dev/null
+++ b/src/gos/gos_x_heap.h
@@ -0,0 +1,62 @@
+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ *              http://ugfx.org/license.html
+ */
+
+/**
+ * The raw32 GOS implementation supports any 32 bit processor with or without an
+ * 	underlying operating system. It uses cooperative multi-tasking. Be careful
+ * 	when writing device drivers not to disturb the assumptions this creates by performing
+ * 	call-backs to uGFX code unless you define the INTERRUPTS_OFF() and INTERRUPTS_ON() macros.
+ * 	It still requires some C runtime library support...
+ * 		enough startup to initialise the stack, interrupts, static data etc and call main().
+ * 		setjmp() and longjmp()			- for threading
+ * 		memcpy()						- for heap and threading
+ * 		malloc(), realloc and free()	- if GFX_OS_HEAP_SIZE == 0
+ *
+ * 	You must also define the following routines in your own code so that timing functions will work...
+ * 		systemticks_t gfxSystemTicks(void);
+ *		systemticks_t gfxMillisecondsToTicks(delaytime_t ms);
+ */
+#ifndef _GOS_X_HEAP_H
+#define _GOS_X_HEAP_H
+
+#if GOS_NEED_X_HEAP
+
+
+/*===========================================================================*/
+/* Special Macros								                             */
+/*===========================================================================*/
+
+/**
+ * @brief	Set the maximum size of the heap.
+ * @note	If set to 0 then the C runtime library malloc() and free() are used.
+ */
+#ifndef GFX_OS_HEAP_SIZE
+	#define GFX_OS_HEAP_SIZE	0
+#endif
+
+/*===========================================================================*/
+/* Type definitions                                                          */
+/*===========================================================================*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+	#if GFX_OS_HEAP_SIZE != 0
+		void gfxAddHeapBlock(void *ptr, size_t sz);
+	#endif
+
+	void *gfxAlloc(size_t sz);
+	void *gfxRealloc(void *ptr, size_t oldsz, size_t newsz);
+	void gfxFree(void *ptr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GOS_NEED_X_HEAP */
+#endif /* _GOS_X_HEAP_H */