7a3681e5b6
This library is used by a number of different libraries in the system. Make it easy for platform libraries to use this library and create an actual exported include file. Change the names of the functions to reflect the new name of the library. Run clang_format on the async_safe_log.cpp file since the formatting is all over the place. Bug: 31919199 Test: Compiled for angler/bullhead, and booted. Test: Ran bionic unit tests. Test: Ran the malloc debug tests. Change-Id: I8071bf690c17b0ea3bc8dc5749cdd5b6ad58478a
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef LIBC_STATIC
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#error NetdClient.cpp should NOT be included in static libc builds.
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#endif
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#include <async_safe/log.h>
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#include "private/NetdClientDispatch.h"
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#include <dlfcn.h>
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#include <pthread.h>
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template <typename FunctionType>
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static void netdClientInitFunction(void* handle, const char* symbol, FunctionType* function) {
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typedef void (*InitFunctionType)(FunctionType*);
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InitFunctionType initFunction = reinterpret_cast<InitFunctionType>(dlsym(handle, symbol));
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if (initFunction != NULL) {
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initFunction(function);
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}
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}
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static void netdClientInitImpl() {
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void* netdClientHandle = dlopen("libnetd_client.so", RTLD_NOW);
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if (netdClientHandle == NULL) {
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// If the library is not available, it's not an error. We'll just use
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// default implementations of functions that it would've overridden.
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return;
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}
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netdClientInitFunction(netdClientHandle, "netdClientInitAccept4",
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&__netdClientDispatch.accept4);
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netdClientInitFunction(netdClientHandle, "netdClientInitConnect",
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&__netdClientDispatch.connect);
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netdClientInitFunction(netdClientHandle, "netdClientInitNetIdForResolv",
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&__netdClientDispatch.netIdForResolv);
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netdClientInitFunction(netdClientHandle, "netdClientInitSocket", &__netdClientDispatch.socket);
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}
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static pthread_once_t netdClientInitOnce = PTHREAD_ONCE_INIT;
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extern "C" __LIBC_HIDDEN__ void netdClientInit() {
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if (pthread_once(&netdClientInitOnce, netdClientInitImpl)) {
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async_safe_format_log(ANDROID_LOG_ERROR, "netdClient", "Failed to initialize netd_client");
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}
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}
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