diff options
author | 2017-04-14 21:16:19 +0200 | |
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committer | 2017-04-14 21:16:19 +0200 | |
commit | 8ff0d0d436b4fd9fd4199d313f708377c7a668af (patch) | |
tree | 1d0060d271adb3d6bac605c2a10768be80e09203 /third_party/protobuf/src/google/protobuf/stubs/io_win32.cc | |
parent | 5235d06159ba6fee412bee261ea7867d061252b0 (diff) |
Revert "protobuf: Update protobuf to @laszlocsomor's master at commit 421d909."
This reverts commit 5235d06159ba6fee412bee261ea7867d061252b0.
Unfortunately, we noticed several build errors / test failures internally due this
change.
Diffstat (limited to 'third_party/protobuf/src/google/protobuf/stubs/io_win32.cc')
-rw-r--r-- | third_party/protobuf/src/google/protobuf/stubs/io_win32.cc | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/third_party/protobuf/src/google/protobuf/stubs/io_win32.cc b/third_party/protobuf/src/google/protobuf/stubs/io_win32.cc deleted file mode 100644 index b5f1cdf0b7..0000000000 --- a/third_party/protobuf/src/google/protobuf/stubs/io_win32.cc +++ /dev/null @@ -1,281 +0,0 @@ -// Protocol Buffers - Google's data interchange format -// Copyright 2008 Google Inc. All rights reserved. -// https://developers.google.com/protocol-buffers/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// Author: laszlocsomor@google.com (Laszlo Csomor) -// -// Implementation for long-path-aware open/mkdir/access on Windows. -// -// These functions convert the input path to an absolute Windows path -// with UNC prefix if necessary, then pass that to -// _wopen/_wmkdir/_waccess (declared in <io.h>) respectively. This -// allows working with files/directories whose paths are longer than -// MAX_PATH (260 chars). -// -// This file is only used on Windows, it's empty on other platforms. - -#if defined(_WIN32) - -#include <ctype.h> -#include <errno.h> -#include <wctype.h> - -#include <google/protobuf/stubs/io_win32.h> - -#include <cassert> -#include <memory> -#include <sstream> -#include <string> -#include <vector> - -namespace google { -namespace protobuf { -namespace stubs { -namespace { - -using std::string; -using std::unique_ptr; -using std::wstring; - -template <typename char_type> -struct CharTraits { - static bool is_alpha(char_type ch); -}; - -template <> -struct CharTraits<char> { - static bool is_alpha(char ch) { return isalpha(ch); } -}; - -template <> -struct CharTraits<wchar_t> { - static bool is_alpha(wchar_t ch) { return iswalpha(ch); } -}; - -template <typename char_type> -bool has_drive_letter(const char_type* ch) { - return CharTraits<char_type>::is_alpha(ch[0]) && ch[1] == ':'; -} - -template <typename char_type> -bool has_unc_prefix(const std::basic_string<char_type>& path) { - return path.size() > 4 && path[0] == '\\' && path[1] == '\\' && - path[2] == '?' && path[3] == '\\'; -} - -template <typename char_type> -bool is_path_absolute(const std::basic_string<char_type>& path) { - return (path.size() > 2 && path[1] == ':') || has_unc_prefix(path); -} - -template <typename char_type> -bool is_separator(char_type c) { - return c == '/' || c == '\\'; -} - -bool is_drive_relative(const string& s) { - return s.size() >= 2 && isalpha(s[0]) && s[1] == ':' && - (s.size() == 2 || !is_separator(s[2])); -} - -void replace_directory_separators(WCHAR* p) { - for (; *p != L'\0'; ++p) { - if (*p == L'/') { - *p = L'\\'; - } - } -} - -wstring get_cwd() { - DWORD result = ::GetCurrentDirectoryW(0, NULL); - std::unique_ptr<WCHAR[]> cwd(new WCHAR[result]); - ::GetCurrentDirectoryW(result, cwd.get()); - cwd.get()[result - 1] = 0; - replace_directory_separators(cwd.get()); - return std::move(wstring(cwd.get())); -} - -wstring join_paths(const wstring& path1, const wstring& path2) { - if (path1.empty() || is_path_absolute(path2)) { - return path2; - } - if (path2.empty()) { - return path1; - } - - if (is_separator(path1.back())) { - return is_separator(path2.front()) ? (path1 + path2.substr(1)) - : (path1 + path2); - } else { - return is_separator(path2.front()) ? (path1 + path2) - : (path1 + L'\\' + path2); - } -} - -string normalize(string path) { - if (has_unc_prefix(path)) { - path = path.substr(4); - } - - static const string dot("."); - static const string dotdot(".."); - - std::vector<string> segments; - int segment_start = -1; - // Find the path segments in `path` (separated by "/"). - for (int i = 0;; ++i) { - if (!is_separator(path[i]) && path[i] != '\0') { - // The current character does not end a segment, so start one unless it's - // already started. - if (segment_start < 0) { - segment_start = i; - } - } else if (segment_start >= 0 && i > segment_start) { - // The current character is "/" or "\0", so this ends a segment. - // Add that to `segments` if there's anything to add; handle "." and "..". - string segment(path, segment_start, i - segment_start); - segment_start = -1; - if (segment == dotdot) { - if (!segments.empty() && !has_drive_letter(segments[0].c_str())) { - segments.pop_back(); - } - } else if (segment != dot) { - segments.push_back(segment); - } - } - if (path[i] == '\0') { - break; - } - } - - // Handle the case when `path` is just a drive specifier (or some degenerate - // form of it, e.g. "c:\.."). - if (segments.size() == 1 && segments[0].size() == 2 && - has_drive_letter(segments[0].c_str())) { - return segments[0] + '\\'; - } - - // Join all segments. - bool first = true; - std::ostringstream result; - for (const auto& s : segments) { - if (!first) { - result << '\\'; - } - first = false; - result << s; - } - return result.str(); -} - -wstring as_wchar_path(const string& path) { - int len = - ::MultiByteToWideChar(CP_UTF8, 0, path.c_str(), path.size(), NULL, 0); - std::unique_ptr<WCHAR[]> wbuf(new WCHAR[len + 1]); - ::MultiByteToWideChar(CP_UTF8, 0, path.c_str(), path.size(), wbuf.get(), - len + 1); - wbuf.get()[len] = 0; - replace_directory_separators(wbuf.get()); - return std::move(wstring(wbuf.get())); -} - -bool as_windows_path(const string& path, size_t max_path, - wstring* result) { - if (path.empty()) { - result->clear(); - return true; - } - if (is_separator(path[0]) || is_drive_relative(path)) { - return false; - } - - *result = as_wchar_path(normalize(path)); - if (!is_path_absolute(path)) { - *result = join_paths(get_cwd(), *result); - } - if (result->size() >= max_path && !has_unc_prefix(*result)) { - *result = wstring(L"\\\\?\\") + *result; - } - return true; -} - -} // namespace - -int win32_open(const char* path, int flags, int mode) { - wstring wpath; - if (!as_windows_path(path, MAX_PATH, &wpath)) { - errno = ENOENT; - return -1; - } - return ::_wopen(wpath.c_str(), flags, mode); -} - -int win32_mkdir(const char* path, int _mode) { - // CreateDirectoryA's limit is 248 chars, see MSDN. - // https://msdn.microsoft.com/en-us/library/windows/desktop/aa363855(v=vs.85).aspx - // This limit presumably includes the null-terminator, because other - // functions that have the MAX_PATH limit, such as CreateFileA, - // actually include it. - wstring wpath; - if (!as_windows_path(path, 248, &wpath)) { - errno = ENOENT; - return -1; - } - return ::_wmkdir(wpath.c_str()); -} - -int win32_access(const char* path, int mode) { - // _access/_waccess in <io.h> don't support checking for executability (nor is - // X_OK defined). - // They support checking for readability (but R_OK is not defined) but we - // never use them for that in the protobuf source code. - // Existence and writability check are also supported, but again F_OK and W_OK - // aren't defined as constants in <io.h>; they are defined in io_win32.h - // Therefore we only support F_OK and W_OK. - assert(mode & ~(F_OK | W_OK) == 0); - wstring wpath; - if (!as_windows_path(path, MAX_PATH, &wpath)) { - errno = ENOENT; - return -1; - } - return ::_waccess(wpath.c_str(), mode); -} - -wstring testonly_path_to_winpath(const string& path, size_t max_path) { - wstring wpath; - as_windows_path(path, max_path, &wpath); - return wpath; -} - -} // namespace stubs -} // namespace protobuf -} // namespace google - -#endif // defined(_WIN32) - |