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/* Pipestream: A simple C++ interface to UNIX pipes
Version 0.05
Copyright (C) 2005-2014 John C. Bowman,
with contributions from Mojca Miklavec
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef PIPESTREAM_H
#define PIPESTREAM_H
#include <sys/wait.h>
#include <unistd.h>
#include <fcntl.h>
#include "common.h"
// bidirectional stream for reading and writing to pipes
class iopipestream {
protected:
int in[2];
int out[2];
static const int BUFSIZE=SHRT_MAX;
char buffer[BUFSIZE];
string sbuffer;
int pid;
bool Running;
bool pipeopen;
bool pipein;
public:
void open(const mem::vector<string> &command, const char *hint=NULL,
const char *application="", int out_fileno=STDOUT_FILENO);
bool isopen() {return pipeopen;}
iopipestream(): pid(0), pipeopen(false) {}
iopipestream(const mem::vector<string> &command, const char *hint=NULL,
const char *application="", int out_fileno=STDOUT_FILENO) :
pid(0), pipeopen(false) {
open(command,hint,application,out_fileno);
}
void eof();
virtual void pipeclose();
virtual ~iopipestream() {
pipeclose();
}
void block(bool write=false, bool read=true);
ssize_t readbuffer();
string readline();
bool running() {return Running;}
typedef iopipestream& (*imanip)(iopipestream&);
iopipestream& operator << (imanip func) {
return (*func)(*this);
}
iopipestream& operator >> (string& s) {
readbuffer();
s=buffer;
return *this;
}
bool tailequals(const char *buf, size_t len, const char *prompt,
size_t plen);
string getbuffer() {return sbuffer;}
void wait(const char *prompt);
int wait();
void Write(const string &s);
iopipestream& operator << (const string& s) {
Write(s);
return *this;
}
template<class T>
iopipestream& operator << (T x) {
ostringstream os;
os << x;
Write(os.str());
return *this;
}
};
#endif
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