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/* This file is part of dvi2bitmap; see README for copyrights and licence */
#ifndef PIPE_STREAM_HEADER_READ
#define PIPE_STREAM_HEADER_READ 1
#include <InputByteStream.h>
#include <sys/types.h>
/**
* Runs an external program, and provides access to the result. This
* runs a given command in a forked process, optionally adjusting the
* environment as it does so. The output from the command is
* available using the methods of an {@link InputByteStream}, plus an
* additional one which retrieves the entire result as a string.
*/
class PipeStream : public InputByteStream {
public:
PipeStream (string cmd, string envs="")
throw (InputByteStreamError);
~PipeStream();
string getResult(bool allOfFile=false, bool gobbleRest=true)
throw (InputByteStreamError);
virtual void close(void);
int getTerminationStatus(void);
/**
* Returns the PID of the running process. After the process has
* finished, this will return zero.
*
* @return the process's PID, or zero if it has finished
*/
pid_t getPid(void) const { return pid_; };
private:
int pipe_status_;
pid_t pid_;
#ifdef WIN32
FILE *fp_;
#endif // WIN32
const string orig_command_;
};
#endif /* PIPE_STREAM_HEADER_READ */
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