Fork of Smoothie to port to mbed non-LPC targets.
Fork of Smoothie by
libs/StreamOutput.h@2:1df0b61d3b5a, 2014-02-28 (annotated)
- Committer:
- Michael J. Spencer
- Date:
- Fri Feb 28 18:52:52 2014 -0800
- Revision:
- 2:1df0b61d3b5a
- Parent:
- 0:31e91bb0ef3c
- Child:
- 3:f151d08d335c
Update to latest Smoothie.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Michael J. Spencer |
2:1df0b61d3b5a | 1 | /* |
Michael J. Spencer |
2:1df0b61d3b5a | 2 | This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl). |
Michael J. Spencer |
2:1df0b61d3b5a | 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. |
Michael J. Spencer |
2:1df0b61d3b5a | 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. |
Michael J. Spencer |
2:1df0b61d3b5a | 5 | You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>. |
Michael J. Spencer |
2:1df0b61d3b5a | 6 | */ |
Michael J. Spencer |
2:1df0b61d3b5a | 7 | |
scachat | 0:31e91bb0ef3c | 8 | #ifndef STREAMOUTPUT_H |
scachat | 0:31e91bb0ef3c | 9 | #define STREAMOUTPUT_H |
scachat | 0:31e91bb0ef3c | 10 | |
Michael J. Spencer |
2:1df0b61d3b5a | 11 | #include <cstdarg> |
Michael J. Spencer |
2:1df0b61d3b5a | 12 | #include <cstring> |
Michael J. Spencer |
2:1df0b61d3b5a | 13 | #include <stdio.h> |
Michael J. Spencer |
2:1df0b61d3b5a | 14 | |
Michael J. Spencer |
2:1df0b61d3b5a | 15 | // This is a base class for all StreamOutput objects. |
Michael J. Spencer |
2:1df0b61d3b5a | 16 | // StreamOutputs are basically "things you can sent strings to". They are passed along with gcodes for example so modules can answer to those gcodes. |
Michael J. Spencer |
2:1df0b61d3b5a | 17 | // They are usually associated with a command source, but can also be a NullStreamOutput if we just want to ignore whatever is sent |
Michael J. Spencer |
2:1df0b61d3b5a | 18 | |
Michael J. Spencer |
2:1df0b61d3b5a | 19 | class NullStreamOutput; |
Michael J. Spencer |
2:1df0b61d3b5a | 20 | |
scachat | 0:31e91bb0ef3c | 21 | class StreamOutput { |
scachat | 0:31e91bb0ef3c | 22 | public: |
Michael J. Spencer |
2:1df0b61d3b5a | 23 | StreamOutput(){} |
Michael J. Spencer |
2:1df0b61d3b5a | 24 | virtual ~StreamOutput(){} |
Michael J. Spencer |
2:1df0b61d3b5a | 25 | |
Michael J. Spencer |
2:1df0b61d3b5a | 26 | virtual int printf(const char* format, ...) __attribute__ ((format(printf, 2, 3))) { |
Michael J. Spencer |
2:1df0b61d3b5a | 27 | char b[64]; |
Michael J. Spencer |
2:1df0b61d3b5a | 28 | char *buffer; |
Michael J. Spencer |
2:1df0b61d3b5a | 29 | // Make the message |
Michael J. Spencer |
2:1df0b61d3b5a | 30 | va_list args; |
Michael J. Spencer |
2:1df0b61d3b5a | 31 | va_start(args, format); |
Michael J. Spencer |
2:1df0b61d3b5a | 32 | |
Michael J. Spencer |
2:1df0b61d3b5a | 33 | int size = vsnprintf(b, 64, format, args) |
Michael J. Spencer |
2:1df0b61d3b5a | 34 | + 1; // we add one to take into account space for the terminating \0 |
scachat | 0:31e91bb0ef3c | 35 | |
Michael J. Spencer |
2:1df0b61d3b5a | 36 | if (size < 64) |
Michael J. Spencer |
2:1df0b61d3b5a | 37 | buffer = b; |
Michael J. Spencer |
2:1df0b61d3b5a | 38 | else |
Michael J. Spencer |
2:1df0b61d3b5a | 39 | { |
Michael J. Spencer |
2:1df0b61d3b5a | 40 | buffer = new char[size]; |
Michael J. Spencer |
2:1df0b61d3b5a | 41 | vsnprintf(buffer, size, format, args); |
Michael J. Spencer |
2:1df0b61d3b5a | 42 | } |
Michael J. Spencer |
2:1df0b61d3b5a | 43 | va_end(args); |
scachat | 0:31e91bb0ef3c | 44 | |
Michael J. Spencer |
2:1df0b61d3b5a | 45 | puts(buffer); |
scachat | 0:31e91bb0ef3c | 46 | |
Michael J. Spencer |
2:1df0b61d3b5a | 47 | if (buffer != b) |
Michael J. Spencer |
2:1df0b61d3b5a | 48 | delete[] buffer; |
scachat | 0:31e91bb0ef3c | 49 | |
Michael J. Spencer |
2:1df0b61d3b5a | 50 | return size - 1; |
Michael J. Spencer |
2:1df0b61d3b5a | 51 | } |
Michael J. Spencer |
2:1df0b61d3b5a | 52 | virtual int _putc(int c) { return 1; } |
Michael J. Spencer |
2:1df0b61d3b5a | 53 | virtual int _getc(void) { return 0; } |
Michael J. Spencer |
2:1df0b61d3b5a | 54 | virtual int puts(const char* str) = 0; |
Michael J. Spencer |
2:1df0b61d3b5a | 55 | |
Michael J. Spencer |
2:1df0b61d3b5a | 56 | static NullStreamOutput NullStream; |
scachat | 0:31e91bb0ef3c | 57 | }; |
scachat | 0:31e91bb0ef3c | 58 | |
Michael J. Spencer |
2:1df0b61d3b5a | 59 | class NullStreamOutput : public StreamOutput { |
Michael J. Spencer |
2:1df0b61d3b5a | 60 | public: |
Michael J. Spencer |
2:1df0b61d3b5a | 61 | int puts(const char* str) { return strlen(str); } |
Michael J. Spencer |
2:1df0b61d3b5a | 62 | }; |
scachat | 0:31e91bb0ef3c | 63 | |
scachat | 0:31e91bb0ef3c | 64 | #endif |