1 /* 2 * Copyright (C) 2017 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_EXT_IPC_BASIC_TYPES_H_ 18 #define INCLUDE_PERFETTO_EXT_IPC_BASIC_TYPES_H_ 19 20 #include <stddef.h> 21 #include <stdint.h> 22 #include <sys/types.h> 23 24 #include "perfetto/ext/base/utils.h" 25 #include "perfetto/protozero/cpp_message_obj.h" 26 27 namespace perfetto { 28 namespace ipc { 29 30 using ProtoMessage = ::protozero::CppMessageObj; 31 using ServiceID = uint32_t; 32 using MethodID = uint32_t; 33 using ClientID = uint64_t; 34 using RequestID = uint64_t; 35 36 #if PERFETTO_BUILDFLAG(PERFETTO_OS_WIN) 37 // AF_UNIX on Windows is supported only on Windows 10 from build 17063. 38 // Also it doesn't bring major advantages compared to a TCP socket. 39 // See go/perfetto-win . 40 constexpr bool kUseTCPSocket = true; 41 #else 42 // On Android, Linux, Mac use a AF_UNIX socket. 43 constexpr bool kUseTCPSocket = false; 44 #endif 45 46 // This determines the maximum size allowed for an IPC message. Trying to send 47 // or receive a larger message will hit DCHECK(s) and auto-disconnect. 48 constexpr size_t kIPCBufferSize = 128 * 1024; 49 50 constexpr uid_t kInvalidUid = static_cast<uid_t>(-1); 51 52 } // namespace ipc 53 } // namespace perfetto 54 55 #endif // INCLUDE_PERFETTO_EXT_IPC_BASIC_TYPES_H_ 56