| [22173] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * os_process.h -- base class for OS specific calls related to creating
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| 4 | * process *without* (in the case of Windows) opening a
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| 5 | * DOS window.
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| 6 | *
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| 7 | * Nett effect is OS neutral way to support
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| 8 | * popen() and related functions
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| 9 | *
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| 10 | * Copyright (C) 2010 The New Zealand Digital Library Project
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| 11 | *
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| 12 | * A component of the Greenstone digital library software
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| 13 | * from the New Zealand Digital Library Project at the
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| 14 | * University of Waikato, New Zealand.
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| 15 | *
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| 16 | * This program is free software; you can redistribute it and/or modify
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| 17 | * it under the terms of the GNU General Public License as published by
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| 18 | * the Free Software Foundation; either version 2 of the License, or
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| 19 | * (at your option) any later version.
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| 20 | *
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| 21 | * This program is distributed in the hope that it will be useful,
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| 22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 24 | * GNU General Public License for more details.
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| 25 | *
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| 26 | * You should have received a copy of the GNU General Public License
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| 27 | * along with this program; if not, write to the Free Software
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| 28 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 29 | *
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| 30 | *********************************************************************/
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| 31 |
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| 32 | #ifndef OS_PROCESS_H
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| 33 | #define OS_PROCESS_H
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| 34 |
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| [22177] | 35 | #include <stdlib.h>
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| [22173] | 36 |
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| [22177] | 37 | enum OSProcessPipeMode { uniRead=0, uniWrite=1, biReadWrite=2 };
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| 38 | enum OSProcessWarnStatus { withoutWarning, withWarning };
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| [22173] | 39 |
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| 40 | class osprocess
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| 41 | {
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| 42 |
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| 43 | public:
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| 44 | osprocess(char* cmdline, OSProcessPipeMode mode);
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| 45 | virtual ~osprocess();
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| 46 |
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| [22177] | 47 | /* one day might want these
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| 48 | virtual bool end_of_pipe();
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| 49 | virtual bool end_of_read_pipe();
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| 50 | virtual bool end_of_write_pipe();
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| [22173] | 51 | */
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| 52 |
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| [22177] | 53 | virtual int write(char* buffer, const int buffer_len)=0;
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| 54 | virtual int read(char* buffer, const int buffer_len)=0;
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| [22173] | 55 |
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| [22177] | 56 | virtual bool close_write_pipe(OSProcessWarnStatus warn_status=withWarning)=0;
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| 57 | virtual bool close_read_pipe(OSProcessWarnStatus warn_status=withWarning)=0;
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| [22173] | 58 | virtual bool close();
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| [22177] | 59 |
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| [22173] | 60 |
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| 61 | protected:
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| 62 | OSProcessPipeMode mode_;
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| 63 |
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| 64 | };
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| 65 |
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| 66 | #endif
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| 67 |
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