1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "perfetto/base/temp_file.h" 18 19 #include <unistd.h> 20 21 namespace perfetto { 22 namespace base { 23 24 namespace { 25 #if PERFETTO_BUILDFLAG(PERFETTO_OS_ANDROID) 26 constexpr char kSysTmpPath[] = "/data/local/tmp"; 27 #else 28 constexpr char kSysTmpPath[] = "/tmp"; 29 #endif 30 } // namespace 31 32 // static Create()33TempFile TempFile::Create() { 34 TempFile temp_file; 35 temp_file.path_.assign(kSysTmpPath); 36 temp_file.path_.append("/perfetto-XXXXXXXX"); 37 temp_file.fd_.reset(mkstemp(&temp_file.path_[0])); 38 PERFETTO_CHECK(temp_file.fd_); 39 return temp_file; 40 } 41 42 // static CreateUnlinked()43TempFile TempFile::CreateUnlinked() { 44 TempFile temp_file = TempFile::Create(); 45 temp_file.Unlink(); 46 return temp_file; 47 } 48 49 TempFile::TempFile() = default; 50 ~TempFile()51TempFile::~TempFile() { 52 Unlink(); 53 } 54 ReleaseFD()55ScopedFile TempFile::ReleaseFD() { 56 Unlink(); 57 return std::move(fd_); 58 } 59 Unlink()60void TempFile::Unlink() { 61 if (path_.empty()) 62 return; 63 PERFETTO_CHECK(unlink(path_.c_str()) == 0); 64 path_.clear(); 65 } 66 67 TempFile::TempFile(TempFile&&) noexcept = default; 68 TempFile& TempFile::operator=(TempFile&&) = default; 69 70 // static Create()71TempDir TempDir::Create() { 72 TempDir temp_dir; 73 temp_dir.path_.assign(kSysTmpPath); 74 temp_dir.path_.append("/perfetto-XXXXXXXX"); 75 PERFETTO_CHECK(mkdtemp(&temp_dir.path_[0])); 76 return temp_dir; 77 } 78 79 TempDir::TempDir() = default; 80 ~TempDir()81TempDir::~TempDir() { 82 PERFETTO_CHECK(rmdir(path_.c_str()) == 0); 83 } 84 85 } // namespace base 86 } // namespace perfetto 87