1 files changed, 61 insertions, 0 deletions
diff --git a/gr-blocks/include/blocks/file_descriptor_source.h b/gr-blocks/include/blocks/file_descriptor_source.h
new file mode 100644
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+++ b/gr-blocks/include/blocks/file_descriptor_source.h
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+/* -*- 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 */