Support/FileSystem: Add file_size implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120867 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Unix/PathV2.inc b/lib/Support/Unix/PathV2.inc
index b18023c..d8575bf 100644
--- a/lib/Support/Unix/PathV2.inc
+++ b/lib/Support/Unix/PathV2.inc
@@ -263,6 +263,20 @@
return make_error_code(errc::success);
}
+error_code file_size(const Twine &path, uint64_t &result) {
+ SmallString<128> path_storage;
+ StringRef p = path.toNullTerminatedStringRef(path_storage);
+
+ struct stat status;
+ if (::stat(p.begin(), &status) == -1)
+ return error_code(errno, system_category());
+ if (!S_ISREG(status.st_mode))
+ return error_code(EPERM, system_category());
+
+ result = status.st_size;
+ return make_error_code(errc::success);
+}
+
error_code unique_file(const Twine &model, int &result_fd,
SmallVectorImpl<char> &result_path) {
SmallString<128> Model;