Revising SD library API.

Open now returns a file object (which has a close() method); exists() no longer accepts a parent directory.

libraries/SD/File.cpp

@@ -0,0 +1,39 @@
+/*
+
+ SD - a slightly more friendly wrapper for sdfatlib
+
+ This library aims to expose a subset of SD card functionality
+ in the form of a higher level "wrapper" object.
+
+ License: GNU General Public License V3
+          (Because sdfatlib is licensed with this.)
+
+ (C) Copyright 2010 SparkFun Electronics
+
+ */
+
+#include <SD.h>
+
+void File::write(uint8_t val) {
+  SD.file.write(val);
+}
+
+void File::write(const char *str) {
+  SD.file.write(str);
+}
+
+void File::write(const uint8_t *buf, size_t size) {
+  SD.file.write(buf, size);
+}
+
+int File::read() {
+  return SD.file.read();
+}
+
+void File::close() {
+  SD.file.close();
+}
+
+File::operator bool() {
+  return SD.file.isOpen();
+}