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// Copyright (C) 2013 Stefan Mahr <dac922@gmx.de>
// Copyright (C) 2012 Andrius Sutas <andrius.sutas@gmail.com>
//
// 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 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 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/>.
#include <octave/oct.h>
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#ifdef BUILD_TCP
#include "tcp_class.h"
static bool type_loaded = false;
#endif
DEFUN_DLD (tcp_write, args, nargout,
"-*- texinfo -*-\n\
@deftypefn {Loadable Function} {@var{n} = } tcp_write (@var{tcp}, @var{data})\n \
\n\
Write data to a tcp interface.\n \
\n\
@var{tcp} - instance of @var{octave_tcp} class.@* \
@var{data} - data to be written to the tcp interface. Can be either of String or uint8 type.\n \
\n\
Upon successful completion, tcp_write() shall return the number of bytes written as the result @var{n}.\n \
@end deftypefn")
{
#ifndef BUILD_TCP
error("tcp: Your system doesn't support the TCP interface");
return octave_value();
#else
if (!type_loaded)
{
octave_tcp::register_type();
type_loaded = true;
}
if (args.length() != 2 || args(0).type_id() != octave_tcp::static_type_id())
{
print_usage();
return octave_value(-1);
}
octave_tcp *tcp = NULL;
int retval;
const octave_base_value& rep = args(0).get_rep();
tcp = &((octave_tcp &)rep);
if (args(1).is_string()) // String
{
retval = tcp->write(args(1).string_value());
}
else if (args(1).byte_size() == args(1).numel()) // uint8_t
{
NDArray data = args(1).array_value();
uint8_t *buf = NULL;
buf = new uint8_t[data.length()];
// memcpy?
if (buf == NULL)
{
error("tcp_write: cannot allocate requested memory");
return octave_value(-1);
}
for (int i = 0; i < data.length(); i++)
buf[i] = static_cast<uint8_t>(data(i));
retval = tcp->write(buf, data.length());
delete[] buf;
}
else
{
print_usage();
return octave_value(-1);
}
return octave_value(retval);
#endif
}