From 076a2599388d8a9efa90207291310c16b9322b1a Mon Sep 17 00:00:00 2001
From: Zachary Turner <zturner@google.com>
Date: Mon, 20 Mar 2017 23:54:54 +0000
Subject: Delete LLDB's MD5 code. Use LLVM instead.

Differential Revision: https://reviews.llvm.org/D31108

llvm-svn: 298325
---
 lldb/source/Host/common/FileSystem.cpp | 72 ----------------------------------
 1 file changed, 72 deletions(-)

(limited to 'lldb/source/Host/common/FileSystem.cpp')

diff --git a/lldb/source/Host/common/FileSystem.cpp b/lldb/source/Host/common/FileSystem.cpp
index 55092dc8400..4472aece1da 100644
--- a/lldb/source/Host/common/FileSystem.cpp
+++ b/lldb/source/Host/common/FileSystem.cpp
@@ -10,7 +10,6 @@
 #include "lldb/Host/FileSystem.h"
 
 #include "llvm/Support/FileSystem.h"
-#include "llvm/Support/MD5.h"
 
 #include <algorithm>
 #include <fstream>
@@ -19,77 +18,6 @@
 using namespace lldb;
 using namespace lldb_private;
 
-namespace {
-
-bool CalcMD5(const FileSpec &file_spec, uint64_t offset, uint64_t length,
-             llvm::MD5::MD5Result &md5_result) {
-  llvm::MD5 md5_hash;
-  std::ifstream file(file_spec.GetPath(), std::ios::binary);
-  if (!file.is_open())
-    return false;
-
-  if (offset > 0)
-    file.seekg(offset, file.beg);
-
-  std::vector<char> read_buf(4096);
-  uint64_t total_read_bytes = 0;
-  while (!file.eof()) {
-    const uint64_t to_read =
-        (length > 0) ? std::min(static_cast<uint64_t>(read_buf.size()),
-                                length - total_read_bytes)
-                     : read_buf.size();
-    if (to_read == 0)
-      break;
-
-    file.read(&read_buf[0], to_read);
-    const auto read_bytes = file.gcount();
-    if (read_bytes == 0)
-      break;
-
-    md5_hash.update(llvm::StringRef(&read_buf[0], read_bytes));
-    total_read_bytes += read_bytes;
-  }
-
-  md5_hash.final(md5_result);
-  return true;
-}
-
-} // namespace
-
-bool FileSystem::CalculateMD5(const FileSpec &file_spec, uint64_t &low,
-                              uint64_t &high) {
-  return CalculateMD5(file_spec, 0, 0, low, high);
-}
-
-bool FileSystem::CalculateMD5(const FileSpec &file_spec, uint64_t offset,
-                              uint64_t length, uint64_t &low, uint64_t &high) {
-  llvm::MD5::MD5Result md5_result;
-  if (!CalcMD5(file_spec, offset, length, md5_result))
-    return false;
-
-  std::tie(high, low) = md5_result.words();
-
-  return true;
-}
-
-bool FileSystem::CalculateMD5AsString(const FileSpec &file_spec,
-                                      std::string &digest_str) {
-  return CalculateMD5AsString(file_spec, 0, 0, digest_str);
-}
-
-bool FileSystem::CalculateMD5AsString(const FileSpec &file_spec,
-                                      uint64_t offset, uint64_t length,
-                                      std::string &digest_str) {
-  llvm::MD5::MD5Result md5_result;
-  if (!CalcMD5(file_spec, offset, length, md5_result))
-    return false;
-
-  llvm::SmallString<32> result_str;
-  llvm::MD5::stringifyResult(md5_result, result_str);
-  digest_str = result_str.c_str();
-  return true;
-}
-
 llvm::sys::TimePoint<>
 FileSystem::GetModificationTime(const FileSpec &file_spec) {
   llvm::sys::fs::file_status status;
-- 
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