Remove Diskstream member playback_distance that can be

[ardour.git] / libs / pbd / filesystem.cc

diff --git a/libs/pbd/filesystem.cc b/libs/pbd/filesystem.cc
index 9c05962a6b8130c78d84ecdb4cf3ba3f0c52260f..661e21cbd5074bf971fb5e5b12c9225ede2912c0 100644 (file)
--- a/libs/pbd/filesystem.cc
+++ b/libs/pbd/filesystem.cc
@@ -21,6 +21,8 @@
 #include <glib.h>
 #include <glib/gstdio.h>
 
+#include <giomm/file.h>
+
 #include <cerrno>
 #include <fstream>
 
@@ -90,6 +92,30 @@ exists (const path & p)
        return Glib::file_test (p.to_string(), Glib::FILE_TEST_EXISTS);
 }
 
+bool
+exists_and_writable (const path & p)
+{
+       /* writable() really reflects the whole folder, but if for any
+          reason the session state file can't be written to, still
+          make us unwritable.
+       */
+
+       struct stat statbuf;
+
+       if (g_stat (p.to_string().c_str(), &statbuf) != 0) {
+               /* doesn't exist - not writable */
+               return false;
+       } else {
+               if (!(statbuf.st_mode & S_IWUSR)) {
+                       /* exists and is not writable */
+                       return false;
+               }
+       }
+
+       return true;
+}
+
+
 bool
 is_directory (const path & p)
 {
@@ -198,6 +224,14 @@ extension (const path & p)
 
 }
 
+/** Take a (possibly) relative path and make it absolute */
+path
+get_absolute_path (const path & p)
+{
+       Glib::RefPtr<Gio::File> f = Gio::File::create_for_path (p.to_string ());
+       return f->get_path ();
+}
+
 } // namespace sys
 
 } // namespace PBD