Imported Upstream version 3.2.2

[debian/gnuradio] / usrp2 / host / lib / copy_handler.cc

diff --git a/usrp2/host/lib/copy_handler.cc b/usrp2/host/lib/copy_handler.cc
new file mode 100644 (file)
index 0000000..9275908
--- /dev/null
+++ b/usrp2/host/lib/copy_handler.cc
@@ -0,0 +1,60 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <usrp2/copy_handler.h>
+#include <iostream>
+#include <string.h>
+
+namespace usrp2 {
+  
+  copy_handler::copy_handler(void *dest, size_t len)
+    : d_dest((uint8_t *)dest), d_space(len), d_bytes(0), d_times(0)
+  {
+  }
+  
+  copy_handler::~copy_handler()
+  {
+    // NOP
+  }
+  
+  data_handler::result
+  copy_handler::operator()(const void *base, size_t len)
+  {
+    if (len > d_space)
+      return KEEP|DONE; // can't do anything, retry later
+    
+    memcpy(&d_dest[d_bytes], base, len);
+    d_space -= len;
+    d_bytes += len;
+    d_times++;
+
+    if (d_space < MIN_COPY_LEN)
+      return DONE; // don't call me anymore
+    
+    return 0;
+  }
+  
+} // namespace usrp2
+