stream.h
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2004, 2006-2007, 2009-2012, 2014-2016 Free Software
Foundation, Inc.
This library 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 library 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 library. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef _MUCPP_STREAM_H
#define _MUCPP_STREAM_H
#include <string>
#include <errno.h>
#include <mailutils/stream.h>
#include <mailutils/prog.h>
#include <mailutils/wordsplit.h>
#include <mailutils/cpp/error.h>
namespace mailutils
{
class Stream
{
protected:
mu_stream_t stm;
size_t read_count;
size_t write_count;
int wflags;
bool opened;
size_t reference_count;
// Inlines
void reference () {
reference_count++;
}
bool dereference () {
return --reference_count == 0;
}
// Friends
friend class FilterStream;
friend class FilterProgStream;
friend class FilterIconvStream;
friend class Folder;
friend class Mailcap;
friend class Message;
friend class Pop3;
public:
Stream ();
Stream (Stream& s);
Stream (const mu_stream_t);
~Stream ();
void open ();
void close ();
void set_waitflags (int flags);
void wait (); // timeval is missing
void wait (int flags); // timeval is missing
int read (void* rbuf, size_t size);
int write (void* wbuf, size_t size);
int write (const std::string& wbuf, size_t size);
int readline (char* rbuf, size_t size);
void flush ();
// Inlines
size_t get_read_count () const {
return read_count;
};
size_t get_write_count () const {
return write_count;
};
friend Stream& operator << (Stream&, const std::string&);
friend Stream& operator >> (Stream&, std::string&);
// Stream Exceptions
class EAgain : public Exception {
public:
EAgain (const char* m, int s) : Exception (m, s) {}
};
};
class TcpStream : public Stream
{
public:
TcpStream (const std::string&, int, int);
};
class FileStream : public Stream
{
public:
FileStream (const std::string&, int);
};
class StdioStream : public Stream
{
public:
StdioStream (int fd, int flags);
};
class ProgStream : public Stream
{
public:
ProgStream (const std::string&, int);
};
class FilterProgStream : public Stream
{
private:
Stream *input;
public:
FilterProgStream (const std::string&, Stream&);
FilterProgStream (const std::string&, Stream*);
};
}
#endif // not _MUCPP_STREAM_H