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Diffstat (limited to 'test/util/temp_path.cc')
-rw-r--r-- | test/util/temp_path.cc | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/test/util/temp_path.cc b/test/util/temp_path.cc deleted file mode 100644 index 35aacb172..000000000 --- a/test/util/temp_path.cc +++ /dev/null @@ -1,163 +0,0 @@ -// Copyright 2018 The gVisor Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "test/util/temp_path.h" - -#include <unistd.h> - -#include <atomic> -#include <cstdlib> -#include <iostream> - -#include "gtest/gtest.h" -#include "absl/time/clock.h" -#include "absl/time/time.h" -#include "test/util/fs_util.h" -#include "test/util/posix_error.h" -#include "test/util/test_util.h" - -namespace gvisor { -namespace testing { - -namespace { - -std::atomic<uint64_t> global_temp_file_number = ATOMIC_VAR_INIT(1); - -// Return a new temp filename, intended to be unique system-wide. -// -// The global file number helps maintain file naming consistency across -// different runs of a test. -// -// The timestamp is necessary because the test infrastructure invokes each -// test case in a separate process (resetting global_temp_file_number) and -// potentially in parallel, which allows for races between selecting and using a -// name. -std::string NextTempBasename() { - return absl::StrCat("gvisor_test_temp_", global_temp_file_number++, "_", - absl::ToUnixNanos(absl::Now())); -} - -void TryDeleteRecursively(std::string const& path) { - if (!path.empty()) { - int undeleted_dirs = 0; - int undeleted_files = 0; - auto status = RecursivelyDelete(path, &undeleted_dirs, &undeleted_files); - if (undeleted_dirs || undeleted_files || !status.ok()) { - std::cerr << path << ": failed to delete " << undeleted_dirs - << " directories and " << undeleted_files - << " files: " << status; - } - } -} - -} // namespace - -constexpr mode_t TempPath::kDefaultFileMode; -constexpr mode_t TempPath::kDefaultDirMode; - -std::string NewTempAbsPathInDir(absl::string_view const dir) { - return JoinPath(dir, NextTempBasename()); -} - -std::string NewTempAbsPath() { - return NewTempAbsPathInDir(GetAbsoluteTestTmpdir()); -} - -std::string NewTempRelPath() { return NextTempBasename(); } - -std::string GetAbsoluteTestTmpdir() { - char* env_tmpdir = getenv("TEST_TMPDIR"); - std::string tmp_dir = - env_tmpdir != nullptr ? std::string(env_tmpdir) : "/tmp"; - - return MakeAbsolute(tmp_dir, "").ValueOrDie(); -} - -PosixErrorOr<TempPath> TempPath::CreateFileWith(absl::string_view const parent, - absl::string_view const content, - mode_t const mode) { - return CreateIn(parent, [=](absl::string_view path) -> PosixError { - // CreateWithContents will call open(O_WRONLY) with the given mode. If the - // mode is not user-writable, save/restore cannot preserve the fd. Hence - // the little permission dance that's done here. - auto res = CreateWithContents(path, content, mode | 0200); - RETURN_IF_ERRNO(res); - - return Chmod(path, mode); - }); -} - -PosixErrorOr<TempPath> TempPath::CreateDirWith(absl::string_view const parent, - mode_t const mode) { - return CreateIn(parent, - [=](absl::string_view path) { return Mkdir(path, mode); }); -} - -PosixErrorOr<TempPath> TempPath::CreateSymlinkTo(absl::string_view const parent, - std::string const& dest) { - return CreateIn(parent, [=](absl::string_view path) { - int ret = symlink(dest.c_str(), std::string(path).c_str()); - if (ret != 0) { - return PosixError(errno, "symlink failed"); - } - return NoError(); - }); -} - -PosixErrorOr<TempPath> TempPath::CreateFileIn(absl::string_view const parent) { - return TempPath::CreateFileWith(parent, absl::string_view(), - kDefaultFileMode); -} - -PosixErrorOr<TempPath> TempPath::CreateDirIn(absl::string_view const parent) { - return TempPath::CreateDirWith(parent, kDefaultDirMode); -} - -PosixErrorOr<TempPath> TempPath::CreateFileMode(mode_t mode) { - return TempPath::CreateFileWith(GetAbsoluteTestTmpdir(), absl::string_view(), - mode); -} - -PosixErrorOr<TempPath> TempPath::CreateFile() { - return TempPath::CreateFileIn(GetAbsoluteTestTmpdir()); -} - -PosixErrorOr<TempPath> TempPath::CreateDir() { - return TempPath::CreateDirIn(GetAbsoluteTestTmpdir()); -} - -TempPath::~TempPath() { TryDeleteRecursively(path_); } - -TempPath::TempPath(TempPath&& orig) { reset(orig.release()); } - -TempPath& TempPath::operator=(TempPath&& orig) { - reset(orig.release()); - return *this; -} - -std::string TempPath::reset(std::string newpath) { - std::string path = path_; - TryDeleteRecursively(path_); - path_ = std::move(newpath); - return path; -} - -std::string TempPath::release() { - std::string path = path_; - path_ = std::string(); - return path; -} - -} // namespace testing -} // namespace gvisor |