[136] | 1 | /*
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| 2 | Copyright (c) 2013 Arduino LLC. All right reserved.
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| 3 |
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| 4 | This library is free software; you can redistribute it and/or
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| 5 | modify it under the terms of the GNU Lesser General Public
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| 6 | License as published by the Free Software Foundation; either
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| 7 | version 2.1 of the License, or (at your option) any later version.
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| 8 |
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| 9 | This library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public
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| 15 | License along with this library; if not, write to the Free Software
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| 16 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 17 | */
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| 18 |
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| 19 | #ifndef PROCESS_H_
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| 20 | #define PROCESS_H_
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| 21 |
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| 22 | #include <Bridge.h>
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| 23 |
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| 24 | class Process : public Stream {
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| 25 | public:
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| 26 | // Constructor with a user provided BridgeClass instance
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| 27 | Process(BridgeClass &_b = Bridge) :
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| 28 | bridge(_b), started(false), buffered(0), readPos(0) { }
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| 29 | ~Process();
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| 30 |
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| 31 | void begin(const String &command);
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| 32 | void addParameter(const String ¶m);
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| 33 | unsigned int run();
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| 34 | void runAsynchronously();
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| 35 | boolean running();
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| 36 | unsigned int exitValue();
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| 37 | void close();
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| 38 |
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| 39 | unsigned int runShellCommand(const String &command);
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| 40 | void runShellCommandAsynchronously(const String &command);
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| 41 |
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| 42 | operator bool () {
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| 43 | return started;
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| 44 | }
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| 45 |
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| 46 | // Stream methods
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| 47 | // (read from process stdout)
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| 48 | int available();
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| 49 | int read();
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| 50 | int peek();
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| 51 | // (write to process stdin)
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| 52 | size_t write(uint8_t);
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| 53 | void flush();
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| 54 | // TODO: add optimized function for block write
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| 55 |
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| 56 | private:
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| 57 | BridgeClass &bridge;
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| 58 | unsigned int handle;
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| 59 | String *cmdline;
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| 60 | boolean started;
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| 61 |
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| 62 | private:
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| 63 | void doBuffer();
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| 64 | uint8_t buffered;
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| 65 | uint8_t readPos;
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| 66 | static const int BUFFER_SIZE = 64;
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| 67 | uint8_t buffer[BUFFER_SIZE];
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| 68 |
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| 69 | };
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| 70 |
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| 71 | #endif
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