diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-03-10 22:45:00 -0400 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-03-10 22:45:00 -0400 |
| commit | 45f9c0a5792526279ebf5ffa6a4853c7e2de6dd6 (patch) | |
| tree | 454906e3eb7109a56a3ffa471ac2dfdb1727fd50 /gr-blocks/lib/file_descriptor_source_impl.h | |
| parent | bd2e8bc700d0a78c682a9caa4a506e8ae9f631ef (diff) | |
blocks: moved file sink and base and descriptor source/sink to gr-blocks.
Diffstat (limited to 'gr-blocks/lib/file_descriptor_source_impl.h')
| -rw-r--r-- | gr-blocks/lib/file_descriptor_source_impl.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/gr-blocks/lib/file_descriptor_source_impl.h b/gr-blocks/lib/file_descriptor_source_impl.h new file mode 100644 index 0000000000..dd86e18af1 --- /dev/null +++ b/gr-blocks/lib/file_descriptor_source_impl.h @@ -0,0 +1,58 @@ +/* -*- 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_IMPL_H +#define INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_IMPL_H + +#include <blocks/file_descriptor_source.h> + +namespace gr { + namespace blocks { + + class file_descriptor_source_impl : public file_descriptor_source + { + private: + size_t d_itemsize; + int d_fd; + bool d_repeat; + + unsigned char *d_residue; + unsigned long d_residue_len; + + protected: + int read_items(char *buf, int nitems); + int handle_residue(char *buf, int nbytes_read); + void flush_residue() { d_residue_len = 0; } + + public: + file_descriptor_source_impl(size_t itemsize, int fd, bool repeat); + ~file_descriptor_source_impl(); + + int work(int noutput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items); + }; + + } /* namespace blocks */ +} /* namespace gr */ + +#endif /* INCLUDED_GR_FILE_DESCRIPTOR_SOURCE_IMPL_H */ |