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Fix rename. 

llvm-svn: 123604
This commit is contained in:
Michael J. Spencer 2011-01-16 22:18:41 +00:00
parent 128ddbf412
commit ec202ee69a
1 changed files with 11 additions and 2 deletions
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13
llvm/lib/Support/Unix/PathV2.inc
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@ -230,8 +230,17 @@ error_code rename(const Twine &from, const Twine &to) {
StringRef f = from.toNullTerminatedStringRef(from_storage);
StringRef t = to.toNullTerminatedStringRef(to_storage);
if (::rename(f.begin(), t.begin()) == -1)
return error_code(errno, system_category());
if (::rename(f.begin(), t.begin()) == -1) {
// If it's a cross device link, copy then delete, otherwise return the error
if (errno == EXDEV) {
if (error_code ec = copy_file(from, to, copy_option::overwrite_if_exists))
return ec;
bool Existed;
if (error_code ec = remove(from, Existed))
return ec;
} else
return error_code(errno, system_category());
}
return success;
}