X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ffs%2Fredirectedpath.h;fp=source%2Ffs%2Fredirectedpath.h;h=50a3609bd36eb7e163826707ddf7a0bc50c0a0df;hb=d08f1d5d468beb303a4bd80f7e37169c464cf942;hp=0000000000000000000000000000000000000000;hpb=bcca7a40a6c59ee1effbaa1027a5364213434448;p=libs%2Fcore.git

diff --git a/source/fs/redirectedpath.h b/source/fs/redirectedpath.h
new file mode 100644
index 0000000..50a3609
--- /dev/null
+++ b/source/fs/redirectedpath.h
@@ -0,0 +1,30 @@
+#ifndef MSP_FS_REDIRECTEDPATH_H_
+#define MSP_FS_REDIRECTEDPATH_H_
+
+#include "path.h"
+
+namespace Msp {
+namespace FS {
+
+/**
+Provides a redirected path for the lifetime of the object.  When RedirectedPath
+goes out of scope, it is renamed to the original path.  If destruction happens
+due to an exception, it is unlinked instead.  The primary use for this is to
+atomically overwrite a file with a new version.
+*/
+class RedirectedPath: public Path
+{
+private:
+	Path original;
+
+public:
+	explicit RedirectedPath(const Path &, const char * = ".tmp");
+	RedirectedPath(const Path &, const std::string &);
+	RedirectedPath(const Path &, const Path &);
+	~RedirectedPath();
+};
+
+} // namespace FS
+} // namespace Msp
+
+#endif