1 //===-- Checksum.cpp ------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "lldb/Utility/Checksum.h" 10 #include "llvm/ADT/STLExtras.h" 11 #include "llvm/ADT/SmallString.h" 12 13 using namespace lldb_private; 14 15 Checksum::Checksum(llvm::MD5::MD5Result md5) { SetMD5(md5); } 16 17 Checksum::Checksum(const Checksum &checksum) { SetMD5(checksum.m_checksum); } 18 19 Checksum &Checksum::operator=(const Checksum &checksum) { 20 SetMD5(checksum.m_checksum); 21 return *this; 22 } 23 24 void Checksum::SetMD5(llvm::MD5::MD5Result md5) { 25 const constexpr size_t md5_length = 16; 26 std::uninitialized_copy_n(md5.begin(), md5_length, m_checksum.begin()); 27 } 28 29 Checksum::operator bool() const { return !llvm::equal(m_checksum, g_sentinel); } 30 31 bool Checksum::operator==(const Checksum &checksum) const { 32 return llvm::equal(m_checksum, checksum.m_checksum); 33 } 34 35 bool Checksum::operator!=(const Checksum &checksum) const { 36 return !(*this == checksum); 37 } 38 39 std::string Checksum::digest() const { 40 return std::string(m_checksum.digest()); 41 } 42 43 llvm::MD5::MD5Result Checksum::g_sentinel = { 44 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}; 45