/* -*- c++ -*- */ /* * Copyright 2004,2013 Free Software Foundation, Inc. * * This file is part of GNU Radio * * GNU Radio 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, or (at your option) * any later version. * * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to * the Free Software Foundation, Inc., 51 Franklin Street, * Boston, MA 02110-1301, USA. */ #ifndef INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_H #define INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_H #include <blocks/api.h> #include <gr_sync_block.h> namespace gr { namespace blocks { /*! * \brief Read stream from file descriptor. * \ingroup source_blk */ class BLOCKS_API file_descriptor_source : virtual public gr_sync_block { protected: virtual int read_items(char *buf, int nitems) = 0; virtual int handle_residue(char *buf, int nbytes_read) = 0; virtual void flush_residue() = 0; public: // gr::blocks::file_descriptor_source::sptr typedef boost::shared_ptr<file_descriptor_source> sptr; /*! * Build a file descriptor source block. * * \param itemsize item size of the incoming data stream. * \param fd file descriptor (as an integer). * \param repeat repeat the data stream continuously. */ static sptr make(size_t itemsize, int fd, bool repeat); }; } /* namespace blocks */ } /* namespace gr */ #endif /* INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_H */