extend timeout for folder locking on windows

Author: ckrause

CHANGELOG.md

@@ -2,6 +2,10 @@ To install or update LODA, please follow the [installation instructions](https:/
 
 ## [Unreleased]
 
+### Bugfixes
+
+* Extend timeout for folder locking on Windows
+
 ## v22.1.9
 
 ### Bugfixes

src/file.cpp

@@ -262,7 +262,7 @@ FolderLock::FolderLock(std::string folder) {
   fd = 0;
   Log::get().debug("Acquiring lock " + lockfile);
 #ifdef _WIN64
-  for (size_t i = 0; i < 300; i++) {  // magic number
+  for (size_t i = 0; i < 600; i++) {  // magic number
     fd = CreateFile(lockfile.c_str(), GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0);
     if (fd != INVALID_HANDLE_VALUE) {
       break;