3 * Copyright 2004 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_H
24 #define INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_H
26 #include <gr_sync_block.h>
28 class gr_file_descriptor_source;
29 typedef boost::shared_ptr<gr_file_descriptor_source> gr_file_descriptor_source_sptr;
31 gr_file_descriptor_source_sptr
32 gr_make_file_descriptor_source (size_t itemsize, int fd, bool repeat = false);
35 * \brief Read stream from file descriptor.
39 class gr_file_descriptor_source : public gr_sync_block
41 friend gr_file_descriptor_source_sptr
42 gr_make_file_descriptor_source (size_t itemsize, int fd, bool repeat);
48 unsigned char *d_residue;
49 unsigned long d_residue_len;
52 gr_file_descriptor_source (size_t itemsize, int fd, bool repeat);
54 int read_items (char *buf, int nitems);
55 int handle_residue (char *buf, int nbytes_read);
56 void flush_residue () { d_residue_len = 0; }
60 ~gr_file_descriptor_source ();
62 int work (int noutput_items,
63 gr_vector_const_void_star &input_items,
64 gr_vector_void_star &output_items);
67 #endif /* INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_H */