1 /* 2 * Copyright (C) 2019 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 #ifndef INCLUDE_PERFETTO_BASE_PROC_UTILS_H_ 18 #define INCLUDE_PERFETTO_BASE_PROC_UTILS_H_ 19 20 #include <stdint.h> 21 22 #include "perfetto/base/build_config.h" 23 24 #if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) 25 extern "C" { 26 // Prototype extracted from the Windows SDK to avoid including windows.h. 27 __declspec(dllimport) unsigned long __stdcall GetCurrentProcessId(); 28 } 29 #elif PERFETTO_BUILDFLAG(PERFETTO_OS_FUCHSIA) 30 #include <zircon/process.h> 31 #include <zircon/types.h> 32 #else 33 #include <unistd.h> 34 #endif 35 36 namespace perfetto { 37 namespace base { 38 39 #if PERFETTO_BUILDFLAG(PERFETTO_OS_FUCHSIA) 40 using PlatformProcessId = zx_handle_t; GetProcessId()41inline PlatformProcessId GetProcessId() { 42 return zx_process_self(); 43 } 44 #elif PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) 45 using PlatformProcessId = uint64_t; 46 inline PlatformProcessId GetProcessId() { 47 return static_cast<uint64_t>(GetCurrentProcessId()); 48 } 49 #else 50 using PlatformProcessId = pid_t; 51 inline PlatformProcessId GetProcessId() { 52 return getpid(); 53 } 54 #endif 55 56 } // namespace base 57 } // namespace perfetto 58 59 #endif // INCLUDE_PERFETTO_BASE_PROC_UTILS_H_ 60