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/* Copyright (C) 2013 Phillip Susi
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef GPARTED_PIPECAPTURE_H
#define GPARTED_PIPECAPTURE_H
#include <string>
#include <vector>
#include <stddef.h> // typedef size_t
#include <glib.h> // typedef gunichar
#include <glibmm/ustring.h>
#include <glibmm/refptr.h>
#include <glibmm/iochannel.h>
namespace GParted {
// captures output pipe of subprocess into a ustring and emits a signal on eof
class PipeCapture
{
public:
PipeCapture( int fd, Glib::ustring &buffer );
~PipeCapture();
void connect_signal();
sigc::signal<void> signal_eof;
sigc::signal<void> signal_update;
private:
bool OnReadable( Glib::IOCondition condition );
static gboolean _OnReadable( GIOChannel *source,
GIOCondition condition,
gpointer data );
static void append_unichar_vector_to_utf8( std::string & str,
const std::vector<gunichar> & ucvec );
static gunichar get_utf8_char_validated(const char *p, gssize max_len);
static int utf8_char_length( unsigned char firstbyte );
Glib::RefPtr<Glib::IOChannel> channel; // Wrapper around fd
char * readbuf; // Bytes read from IOChannel (fd)
size_t fill_offset; // Filling offset into readbuf
std::vector<gunichar> linevec; // Current line stored as UCS-4 characters
size_t cursor; // Cursor position index into linevec
std::string capturebuf; // Captured output as UTF-8 characters
size_t line_start; // Index into bytebuf where current line starts
Glib::ustring & callerbuf; // Reference to caller supplied buffer
bool callerbuf_uptodate; // Has capturebuf changed since last copied to callerbuf?
};
} // namepace GParted
#endif /* GPARTED_PIPECAPTURE_H */
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