WIP: Background processing.

1 files changed, 8 insertions, 0 deletions

diff --git a/xs/src/libslic3r/Utils.hpp b/xs/src/libslic3r/Utils.hpp
index f1390b8a2..dd05891dd 100644
--- a/xs/src/libslic3r/Utils.hpp
+++ b/xs/src/libslic3r/Utils.hpp
@@ -43,6 +43,14 @@ extern local_encoded_string encode_path(const char *src);
 extern std::string decode_path(const char *src);
 extern std::string normalize_utf8_nfc(const char *src);
 
+// Safely rename a file even if the target exists.
+// On Windows, the file explorer (or anti-virus or whatever else) often locks the file
+// for a short while, so the file may not be movable. Retry while we see recoverable errors.
+extern int rename_file(const std::string &from, const std::string &to);
+
+// Copy a file, adjust the access attributes, so that the target is writable.
+extern int copy_file(const std::string &from, const std::string &to);
+
 // File path / name / extension splitting utilities, working with UTF-8,
 // to be published to Perl.
 namespace PerlUtils {