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/*
* Copyright (C) 2007-2008 Xagasoft, All rights reserved.
*
* This file is part of the libbu++ library and is released under the
* terms of the license contained in the file LICENSE.
*/
#ifndef BU_PROCESS_H
#define BU_PROCESS_H
#include <stdint.h>
#include <sys/types.h>
#include "bu/stream.h"
#include "bu/fstring.h"
namespace Bu
{
/**
* Runs a program and attaches streams to it's stdin, stdout, and stderr.
* Reading from a Bu::Process will read from the program's standard output,
* writing to a Bu::Process will write to the program's standard input.
*/
class Process : public Bu::Stream
{
public:
Process( const char *sName, char *const argv[] );
Process( const char *sName, const char *argv, ...);
virtual ~Process();
virtual void close();
virtual size_t read( void *pBuf, size_t nBytes );
virtual size_t readErr( void *pBuf, size_t nBytes );
virtual size_t write( const void *pBuf, size_t nBytes );
using Stream::write;
virtual long tell();
virtual void seek( long offset );
virtual void setPos( long pos );
virtual void setPosEnd( long pos );
virtual bool isEos();
virtual bool isOpen();
virtual void flush();
virtual bool canRead();
virtual bool canWrite();
virtual bool isReadable();
virtual bool isWritable();
virtual bool isSeekable();
virtual bool isBlocking();
virtual void setBlocking( bool bBlocking=true );
/**
* Returns the pid of the child process, or zero if there is no
* currently running child. Note that a read operation must be
* performed in order to discover that the child has ended.
*/
pid_t getPid();
private:
int iStdIn;
int iStdOut;
int iStdErr;
pid_t iPid;
void gexec( const char *sName, char *const argv[] );
};
}
#endif
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