From f3e2e07201c50033bf6c9d0c6a6f068557b4f17f Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Wed, 17 Apr 2013 13:43:52 -0400
Subject: runtime: converting runtime core to gr namespace, gnuradio include
dir.
---
gnuradio-runtime/lib/vmcircbuf_createfilemapping.h | 81 ++++++++++++++++++++++
1 file changed, 81 insertions(+)
create mode 100644 gnuradio-runtime/lib/vmcircbuf_createfilemapping.h
(limited to 'gnuradio-runtime/lib/vmcircbuf_createfilemapping.h')
diff --git a/gnuradio-runtime/lib/vmcircbuf_createfilemapping.h b/gnuradio-runtime/lib/vmcircbuf_createfilemapping.h
new file mode 100644
index 0000000000..0513112f23
--- /dev/null
+++ b/gnuradio-runtime/lib/vmcircbuf_createfilemapping.h
@@ -0,0 +1,81 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2003,2005,2013 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 GR_VMCIRCBUF_CREATEFILEMAPPING_H
+#define GR_VMCIRCBUF_CREATEFILEMAPPING_H
+
+#include <gnuradio/api.h>
+#include "vmcircbuf.h"
+
+#ifdef HAVE_CREATEFILEMAPPING
+#include <windows.h>
+#endif
+
+namespace gr {
+
+ /*!
+ * \brief concrete class to implement circular buffers with mmap and shm_open
+ * \ingroup internal
+ */
+ class GR_RUNTIME_API vmcircbuf_createfilemapping : public gr::vmcircbuf
+ {
+ public:
+ // CREATORS
+ vmcircbuf_createfilemapping(int size);
+ virtual ~vmcircbuf_createfilemapping();
+#ifdef HAVE_CREATEFILEMAPPING
+ private:
+ HANDLE d_handle;
+ LPVOID d_first_copy;
+ LPVOID d_second_copy;
+#endif
+ };
+
+ /*!
+ * \brief concrete factory for circular buffers built using mmap and shm_open
+ */
+ class GR_RUNTIME_API vmcircbuf_createfilemapping_factory : public gr::vmcircbuf_factory
+ {
+ private:
+ static gr::vmcircbuf_factory *s_the_factory;
+
+ public:
+ static gr::vmcircbuf_factory *singleton();
+
+ virtual const char *name() const { return "gr::vmcircbuf_createfilemapping_factory"; }
+
+ /*!
+ * \brief return granularity of mapping, typically equal to page size
+ */
+ virtual int granularity();
+
+ /*!
+ * \brief return a gr::vmcircbuf, or 0 if unable.
+ *
+ * Call this to create a doubly mapped circular buffer.
+ */
+ virtual gr::vmcircbuf *make(int size);
+ };
+
+} /* namespace gr */
+
+#endif /* GR_VMCIRCBUF_CREATEFILEMAPPING_H */
--
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