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Support/FileSystem: Add create_hard_link implementation.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120792 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2010-12-03 05:58:41 +00:00
parent 0dda5437f8
commit d7b305f13e
2 changed files with 32 additions and 0 deletions
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13
lib/Support/Unix/PathV2.inc
View File

@ -160,6 +160,19 @@ error_code create_directory(const Twine &path, bool &existed) {
return make_error_code(errc::success);
}
error_code create_hard_link(const Twine &to, const Twine &from) {
// Get arguments.
SmallString<128> from_storage;
SmallString<128> to_storage;
StringRef f = from.toNullTerminatedStringRef(from_storage);
StringRef t = to.toNullTerminatedStringRef(to_storage);
if (::link(t.begin(), f.begin()) == -1)
return error_code(errno, system_category());
return make_error_code(errc::success);
}
error_code exists(const Twine &path, bool &result) {
SmallString<128> path_storage;
StringRef p = path.toNullTerminatedStringRef(path_storage);

19
lib/Support/Windows/PathV2.inc
View File

@ -201,6 +201,25 @@ error_code create_directory(const Twine &path, bool &existed) {
return make_error_code(errc::success);
}
error_code create_hard_link(const Twine &to, const Twine &from) {
// Get arguments.
SmallString<128> from_storage;
SmallString<128> to_storage;
StringRef f = from.toStringRef(from_storage);
StringRef t = to.toStringRef(to_storage);
// Convert to utf-16.
SmallVector<wchar_t, 128> wide_from;
SmallVector<wchar_t, 128> wide_to;
if (error_code ec = UTF8ToUTF16(f, wide_from)) return ec;
if (error_code ec = UTF8ToUTF16(t, wide_to)) return ec;
if (!::CreateHardLinkW(wide_from.begin(), wide_to.begin(), NULL))
return make_error_code(windows_error(::GetLastError()));
return make_error_code(errc::success);
}
error_code exists(const Twine &path, bool &result) {
SmallString<128> path_storage;
SmallVector<wchar_t, 128> path_utf16;