src/libs/StreamOutput.h

   1 /*
   2       This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl).
   3       Smoothie is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
   4       Smoothie is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
   5       You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>.
   6 */
   7
   8 #ifndef STREAMOUTPUT_H
   9 #define STREAMOUTPUT_H
  10
  11 #include <Stream.h>
  12 #include <cstdarg>
  13
  14 class StreamOutput : public mbed::Stream {
  15     public:
  16         StreamOutput(){}
  17 //         virtual int puts(const char *str) = 0;
  18         virtual int printf(const char* format, ...) __attribute__ ((format(printf, 2, 3))) {
  19             char *buffer;
  20             // Make the message
  21             va_list args;
  22             va_start(args, format);
  23
  24             int size = vsnprintf(NULL, 0, format, args)
  25                 + 1; // we add one to take into account space for the terminating \0
  26
  27             buffer = new char[size];
  28             vsnprintf(buffer, size, format, args);
  29             va_end(args);
  30
  31             puts(buffer);
  32
  33             delete[] buffer;
  34             return size - 1;
  35         }
  36         virtual int _putc(int c) { return 0; }
  37         virtual int _getc(void) { return 0; }
  38         virtual int puts(const char*) = 0;
  39 };
  40
  41 #endif