libs/binder/OS.h

/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * 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.
 */
#pragma once

#include <stddef.h>
#include <cstdint>

#include <binder/RpcTransport.h>
#include <binder/unique_fd.h>
#include <utils/Errors.h>

namespace android::binder::os {

LIBBINDER_EXPORTED void trace_begin(uint64_t tag, const char* name);
LIBBINDER_EXPORTED void trace_end(uint64_t tag);
LIBBINDER_EXPORTED void trace_int(uint64_t tag, const char* name, int32_t value);

status_t setNonBlocking(borrowed_fd fd);

status_t getRandomBytes(uint8_t* data, size_t size);

status_t dupFileDescriptor(int oldFd, int* newFd);

std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory();

LIBBINDER_INTERNAL_EXPORTED ssize_t
sendMessageOnSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
                    const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);

LIBBINDER_INTERNAL_EXPORTED ssize_t
receiveMessageFromSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
                         std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);

uint64_t GetThreadId();

bool report_sysprop_change();

} // namespace android::binder::os