Diff: SerialBuffered.h

Revision:

0:e1a0471e5ffb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SerialBuffered.h	Wed Dec 15 15:01:56 2010 +0000
@@ -0,0 +1,61 @@
+#ifndef _SERIAL_BUFFERED_H_
+#define _SERIAL_BUFFERED_H_
+
+/**
+ * Buffered serial class.
+ */
+class SerialBuffered : public Serial {
+public:
+    /**
+     * Create a buffered serial class.
+     *
+     * @param tx A pin for transmit.
+     * @param rx A pin for receive.
+     */
+    SerialBuffered(PinName tx, PinName rx);
+
+    /**
+     * Destroy.
+     */
+    virtual ~SerialBuffered();
+
+    /**
+     * Get a character.
+     *
+     * @return A character. (-1:timeout)
+     */
+    int getc();
+
+    /**
+     * Returns 1 if there is a character available to read, 0 otherwise.
+     */
+    int readable();
+
+    /**
+     * Set timeout for getc().
+     *
+     * @param ms milliseconds. (-1:Disable timeout)
+     */
+    void setTimeout(int ms);
+
+    /**
+     * Read requested bytes.
+     *
+     * @param bytes A pointer to a buffer.
+     * @param requested Length.
+     *
+     * @return Readed byte length.
+     */
+    size_t readBytes(uint8_t *bytes, size_t requested);
+
+private:
+    void handleInterrupt();
+    static const int BUFFERSIZE = 4096;
+    uint8_t buffer[BUFFERSIZE];            // points at a circular buffer, containing data from m_contentStart, for m_contentSize bytes, wrapping when you get to the end
+    uint16_t indexContentStart;   // index of first bytes of content
+    uint16_t indexContentEnd;     // index of bytes after last byte of content
+    int timeout;
+    Timer timer;
+};
+
+#endif