Add support for GFILEs based on BaseFileStreams and Memory Pointers

1 files changed, 41 insertions, 0 deletions

diff --git a/src/gfile/inc_memfs.c b/src/gfile/inc_memfs.c
new file mode 100644
index 00000000..fee089ce
--- /dev/null
+++ b/src/gfile/inc_memfs.c
@@ -0,0 +1,41 @@
+/*
+ * 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
+ */
+
+/**
+ * This file is included by src/gfile/gfile.c
+ */
+
+/********************************************************
+ * The Memory pointer file-system VMT
+ ********************************************************/
+
+#include <string.h>
+
+static int MEMRead(GFILE *f, char *buf, int size);
+static int MEMWrite(GFILE *f, char *buf, int size);
+static bool_t MEMSetpos(GFILE *f, long int pos);
+
+static const GFILEVMT FsMemVMT = {
+	0,													// next
+	GFSFLG_SEEKABLE|GFSFLG_WRITEABLE,					// flags
+	0,													// prefix
+	0, 0, 0, 0,
+	0, 0, MEMRead, MEMWrite,
+	MEMSetpos, 0, 0,
+};
+
+static int MEMRead(GFILE *f, char *buf, int size) {
+	memset(buf, ((char *)f->fd)+f->pos, size);
+	return size;
+}
+static int MEMWrite(GFILE *f, char *buf, int size) {
+	memset(((char *)f->fd)+f->pos, buf, size);
+	return size;
+}
+static bool_t MEMSetpos(GFILE *f, long int pos) {
+	return TRUE;
+}