1 files changed, 90 insertions, 0 deletions
diff --git a/gr-blocks/lib/file_sink_impl.cc b/gr-blocks/lib/file_sink_impl.cc
new file mode 100644
index 0000000000..88dcb5a021
--- /dev/null
+++ b/gr-blocks/lib/file_sink_impl.cc
@@ -0,0 +1,90 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2006,2007,2010,2013 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "file_sink_impl.h"
+#include <gr_io_signature.h>
+#include <stdexcept>
+
+namespace gr {
+  namespace blocks {
+
+    file_sink::sptr
+    file_sink::make(size_t itemsize, const char *filename)
+    {
+      return gnuradio::get_initial_sptr
+        (new file_sink_impl(itemsize, filename));
+    }
+
+    file_sink_impl::file_sink_impl(size_t itemsize, const char *filename)
+      : gr_sync_block("file_sink",
+                      gr_make_io_signature(1, 1, itemsize),
+                      gr_make_io_signature(0, 0, 0)),
+        file_sink_base(filename, true),
+        d_itemsize(itemsize)
+    {
+    }
+
+    file_sink_impl::~file_sink_impl()
+    {
+    }
+
+    int
+    file_sink_impl::work(int noutput_items,
+                         gr_vector_const_void_star &input_items,
+                         gr_vector_void_star &output_items)
+    {
+      char *inbuf = (char*)input_items[0];
+      int  nwritten = 0;
+
+      do_update();                    // update d_fp is reqd
+
+      if(!d_fp)
+        return noutput_items;         // drop output on the floor
+
+      while(nwritten < noutput_items) {
+        int count = fwrite(inbuf, d_itemsize, noutput_items - nwritten, d_fp);
+        if(count == 0) {
+          if(ferror(d_fp)) {
+            std::stringstream s;
+            s << "file_sink write failed with error " << fileno(d_fp) << std::endl;
+            throw std::runtime_error(s.str());
+          }
+          else { // is EOF
+            break;
+          }
+        }
+        nwritten += count;
+        inbuf += count * d_itemsize;
+      }
+
+      if(d_unbuffered)
+        fflush (d_fp);
+
+      return nwritten;
+    }
+
+  } /* namespace blocks */
+} /* namespace gr */