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1/*
2 * Copyright (C) 2007 Xagasoft, All rights reserved.
3 *
4 * This file is part of the libbu++ library and is released under the
5 * terms of the license contained in the file LICENSE.
6 */
7
8#ifndef BU_PROCESS_H
9#define BU_PROCESS_H
10
11#include <stdint.h>
12#include <sys/types.h>
13
14#include "bu/stream.h"
15#include "bu/fstring.h"
16
17namespace Bu
18{
19 /**
20 * Runs a program and attaches streams to it's stdin, stdout, and stderr.
21 * Reading from a Bu::Process will read from the program's standard output,
22 * writing to a Bu::Process will write to the program's standard input.
23 */
24 class Process : public Bu::Stream
25 {
26 public:
27 Process( const char *sName, char *const argv[] );
28 Process( const char *sName, const char *argv, ...);
29 virtual ~Process();
30
31 virtual void close();
32 virtual size_t read( void *pBuf, size_t nBytes );
33 virtual size_t write( const void *pBuf, size_t nBytes );
34
35 virtual long tell();
36 virtual void seek( long offset );
37 virtual void setPos( long pos );
38 virtual void setPosEnd( long pos );
39 virtual bool isEOS();
40 virtual bool isOpen();
41
42 virtual void flush();
43
44 virtual bool canRead();
45 virtual bool canWrite();
46
47 virtual bool isReadable();
48 virtual bool isWritable();
49 virtual bool isSeekable();
50
51 virtual bool isBlocking();
52 virtual void setBlocking( bool bBlocking=true );
53
54 private:
55 int iStdIn;
56 int iStdOut;
57 int iStdErr;
58 pid_t iPid;
59
60 void gexec( const char *sName, char *const argv[] );
61 };
62}
63
64#endif