Remove POSIX backtraces; move ScopedTemporary into its own file.

[dcpomatic.git] / src / lib / scoped_temporary.cc

diff --git a/src/lib/scoped_temporary.cc b/src/lib/scoped_temporary.cc
new file mode 100644 (file)
index 0000000..c64f632
--- /dev/null
+++ b/src/lib/scoped_temporary.cc
@@ -0,0 +1,64 @@
+/*
+    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+
+    This program 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 2 of the License, or
+    (at your option) any later version.
+
+    This program 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "scoped_temporary.h"
+
+/** Construct a ScopedTemporary.  A temporary filename is decided but the file is not opened
+ *  until ::open() is called.
+ */
+ScopedTemporary::ScopedTemporary ()
+       : _open (0)
+{
+       _file = boost::filesystem::temp_directory_path() / boost::filesystem::unique_path ();
+}
+
+/** Close and delete the temporary file */
+ScopedTemporary::~ScopedTemporary ()
+{
+       close ();       
+       boost::system::error_code ec;
+       boost::filesystem::remove (_file, ec);
+}
+
+/** @return temporary filename */
+char const *
+ScopedTemporary::c_str () const
+{
+       return _file.string().c_str ();
+}
+
+/** Open the temporary file.
+ *  @return File's FILE pointer.
+ */
+FILE*
+ScopedTemporary::open (char const * params)
+{
+       _open = fopen (c_str(), params);
+       return _open;
+}
+
+/** Close the file */
+void
+ScopedTemporary::close ()
+{
+       if (_open) {
+               fclose (_open);
+               _open = 0;
+       }
+}