xref: /aosp_15_r20/frameworks/native/libs/binder/OS.h (revision 38e8c45f13ce32b0dcecb25141ffecaf386fa17f)
1 /*
2  * Copyright (C) 2022 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 #pragma once
17 
18 #include <stddef.h>
19 #include <cstdint>
20 
21 #include <binder/RpcTransport.h>
22 #include <binder/unique_fd.h>
23 #include <utils/Errors.h>
24 
25 namespace android::binder::os {
26 
27 LIBBINDER_EXPORTED void trace_begin(uint64_t tag, const char* name);
28 LIBBINDER_EXPORTED void trace_end(uint64_t tag);
29 LIBBINDER_EXPORTED void trace_int(uint64_t tag, const char* name, int32_t value);
30 LIBBINDER_EXPORTED uint64_t get_trace_enabled_tags();
31 
32 status_t setNonBlocking(borrowed_fd fd);
33 
34 status_t getRandomBytes(uint8_t* data, size_t size);
35 
36 status_t dupFileDescriptor(int oldFd, int* newFd);
37 
38 std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory();
39 
40 LIBBINDER_INTERNAL_EXPORTED ssize_t
41 sendMessageOnSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
42                     const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);
43 
44 LIBBINDER_INTERNAL_EXPORTED ssize_t
45 receiveMessageFromSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
46                          std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);
47 
48 uint64_t GetThreadId();
49 
50 bool report_sysprop_change();
51 
52 } // namespace android::binder::os
53