Diff: PhoneAppIO.h

Revision:

5:1b9734e68327

Child:

11:d3aa5fca2330

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PhoneAppIO.h	Fri Apr 17 04:20:07 2015 +0000
@@ -0,0 +1,88 @@
+/*
+ *  Buffered IO of pending CharacteristicWrites meant to Nofify
+ *   the phone/tablet application.   ALS  20150416
+ *
+ */
+
+#ifndef PHONEAPPIO_H
+#define PHONEAPPIO_H
+
+#include "mbed.h"
+#include "BLEDevice.h"
+#include <cstdarg>
+#include "MTSBufferedIO.h"
+
+#define STRING_STACK_LIMIT    120
+
+// namespace moo
+// {
+
+class PhoneAppIO : public mts::MTSBufferedIO
+{
+  public:
+    PhoneAppIO( BLEDevice *ble, int txBufferSize=1280, int rxBufferSize=1280 );
+
+    /** Destructs an MTSSerial object and frees all related resources, including
+    * internal buffers.
+    */
+    ~PhoneAppIO();
+
+    /** Write a string to the buffer
+     *
+     * @param str The string to write
+     *
+     * @returns 0 if the write succeeds, EOF for error
+     */
+    int puts( const char *str )
+    {
+        return  write( str, strlen( str ) );
+    }
+
+    int printf( const char *format, ... )
+    {
+        va_list arg;
+        va_start( arg, format );
+
+        int len = PhoneAppIO::vprintf( format, arg );
+
+        va_end( arg );
+
+        return  len;
+    }
+    int vprintf( const char *format, va_list arg )
+    {
+        int len = vsnprintf( NULL, 0, format, arg );
+        if( len < STRING_STACK_LIMIT )
+        {
+            char temp[STRING_STACK_LIMIT];
+            vsprintf( temp, format, arg );
+            puts( temp );
+
+        } else
+          {
+              char *temp = new char[len + 1];
+              vsprintf( temp, format, arg );
+              puts( temp );
+              delete[] temp;
+          }
+
+        return  len;
+    }
+
+  void toPhoneBuf( uint8_t *data, uint16_t bytesRead );
+
+  protected:
+    BLEDevice  *ble;
+    uint8_t    *data;
+    uint16_t   bytesRead;
+
+  private:
+    virtual void handleWrite(); // Method for handling data to be written
+    virtual void handleRead();  // Method for handling data to be read
+};
+
+// }
+
+#endif /* PHONEAPPIO_H */
+
+/* EOF */