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This commit is contained in:
Danielle Rozenblit
2023-02-09 07:37:37 -08:00
parent dc39409a03
commit 610c8b9e33
385 changed files with 7518 additions and 4039 deletions
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contrib/pzstd/utils/FileSystem.h
+12 -10
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-present, Facebook, Inc.
* Copyright (c) Meta Platforms, Inc. and affiliates.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
@@ -8,16 +8,18 @@
*/
#pragma once
#include "utils/Portability.h"
#include "utils/Range.h"
#include <sys/stat.h>
#include <cerrno>
#include <cstdint>
#include <limits>
#include <system_error>
// A small subset of `std::filesystem`.
// `std::filesystem` should be a drop in replacement.
// See http://en.cppreference.com/w/cpp/filesystem for documentation.
// See https://en.cppreference.com/w/cpp/filesystem for documentation.
namespace pzstd {
@@ -28,7 +30,7 @@ typedef struct ::_stat64 file_status;
typedef struct ::stat file_status;
#endif
/// http://en.cppreference.com/w/cpp/filesystem/status
/// https://en.cppreference.com/w/cpp/filesystem/status
inline file_status status(StringPiece path, std::error_code& ec) noexcept {
file_status status;
#if defined(_MSC_VER)
@@ -44,7 +46,7 @@ inline file_status status(StringPiece path, std::error_code& ec) noexcept {
return status;
}
/// http://en.cppreference.com/w/cpp/filesystem/is_regular_file
/// https://en.cppreference.com/w/cpp/filesystem/is_regular_file
inline bool is_regular_file(file_status status) noexcept {
#if defined(S_ISREG)
return S_ISREG(status.st_mode);
@@ -55,12 +57,12 @@ inline bool is_regular_file(file_status status) noexcept {
#endif
}
/// http://en.cppreference.com/w/cpp/filesystem/is_regular_file
/// https://en.cppreference.com/w/cpp/filesystem/is_regular_file
inline bool is_regular_file(StringPiece path, std::error_code& ec) noexcept {
return is_regular_file(status(path, ec));
}
/// http://en.cppreference.com/w/cpp/filesystem/is_directory
/// https://en.cppreference.com/w/cpp/filesystem/is_directory
inline bool is_directory(file_status status) noexcept {
#if defined(S_ISDIR)
return S_ISDIR(status.st_mode);
@@ -71,22 +73,22 @@ inline bool is_directory(file_status status) noexcept {
#endif
}
/// http://en.cppreference.com/w/cpp/filesystem/is_directory
/// https://en.cppreference.com/w/cpp/filesystem/is_directory
inline bool is_directory(StringPiece path, std::error_code& ec) noexcept {
return is_directory(status(path, ec));
}
/// http://en.cppreference.com/w/cpp/filesystem/file_size
/// https://en.cppreference.com/w/cpp/filesystem/file_size
inline std::uintmax_t file_size(
StringPiece path,
std::error_code& ec) noexcept {
auto stat = status(path, ec);
if (ec) {
return -1;
return std::numeric_limits<uintmax_t>::max();
}
if (!is_regular_file(stat)) {
ec.assign(ENOTSUP, std::generic_category());
return -1;
return std::numeric_limits<uintmax_t>::max();
}
ec.clear();
return stat.st_size;