| //===--- UUID.cpp - UUID generation ---------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See http://swift.org/LICENSE.txt for license information |
| // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This is an interface over the standard OSF uuid library that gives UUIDs |
| // sane value semantics and operators. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <uuid/uuid.h> |
| #include "swift/Basic/UUID.h" |
| |
| using namespace swift; |
| |
| UUID::UUID(FromRandom_t) { |
| uuid_generate_random(Value); |
| } |
| |
| UUID::UUID(FromTime_t) { |
| uuid_generate_time(Value); |
| } |
| |
| UUID::UUID() { |
| uuid_clear(Value); |
| } |
| |
| Optional<UUID> UUID::fromString(const char *s) { |
| UUID result; |
| if (uuid_parse(s, result.Value)) |
| return None; |
| return result; |
| } |
| |
| void UUID::toString(llvm::SmallVectorImpl<char> &out) const { |
| out.resize(UUID::StringBufferSize); |
| uuid_unparse_upper(Value, out.data()); |
| // Pop off the null terminator. |
| assert(out.back() == '\0' && "did not null-terminate?!"); |
| out.pop_back(); |
| } |
| |
| int UUID::compare(UUID y) const { |
| return uuid_compare(Value, y.Value); |
| } |
| |
| llvm::raw_ostream &swift::operator<<(llvm::raw_ostream &os, UUID uuid) { |
| llvm::SmallString<UUID::StringBufferSize> buf; |
| uuid.toString(buf); |
| os << buf; |
| return os; |
| } |