Merge pull request #90403 from bruvzg/file_resize

[FileAccess] Implement `resize` method.

1 files changed, 19 insertions, 0 deletions

diff --git a/drivers/windows/file_access_windows.cpp b/drivers/windows/file_access_windows.cpp
index dd8bceb573..726e0fdc5a 100644
--- a/drivers/windows/file_access_windows.cpp
+++ b/drivers/windows/file_access_windows.cpp
@@ -41,6 +41,7 @@
 #include <windows.h>
 
 #include <errno.h>
+#include <io.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <tchar.h>
@@ -369,6 +370,24 @@ Error FileAccessWindows::get_error() const {
 	return last_error;
 }
 
+Error FileAccessWindows::resize(int64_t p_length) {
+	ERR_FAIL_NULL_V_MSG(f, FAILED, "File must be opened before use.");
+	errno_t res = _chsize_s(_fileno(f), p_length);
+	switch (res) {
+		case 0:
+			return OK;
+		case EACCES:
+		case EBADF:
+			return ERR_FILE_CANT_OPEN;
+		case ENOSPC:
+			return ERR_OUT_OF_MEMORY;
+		case EINVAL:
+			return ERR_INVALID_PARAMETER;
+		default:
+			return FAILED;
+	}
+}
+
 void FileAccessWindows::flush() {
 	ERR_FAIL_NULL(f);