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/*************************************************************************
*
* HTCd - Copyright (C) 1998-2006 Henrik Rydberg
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef MREADH
#define MREADH
// These functions work with nonblocking pipes
// as well as normal devices, and does not produce
// any signals on pipe errors
#include <mt/mstring.h>
#include <unistd.h>
#include <fcntl.h>
class mread {
public:
mread();
mread(int f);
void setfd(int f) { clear(); fd=f; }
int getfd() const { return fd; }
void setflag(int f) { fcntl(fd,F_SETFL,f); }
int getflag() const { return fcntl(fd,F_GETFL,0); }
// Basic, pipe-safe, normally non-blocking, reads
void clear();
int poll();
int read(char* s,int n);
void putback(const sref& s);
// Buffered reads
int readx(char* s,int n); // may timeout and return less than wanted
int readln(char* s,int n);
int readpara(char* s,int n);
private:
int fd;
mstring buf;
};
// All functions return number of bytes written, or -1 on error.
// Note that although ln and para continues to read until
// it finds a newline or a paragraph, it may read more than that.
// Use clear() to restore reading state
#endif
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