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/*
* Copyright (C) 2019 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.
*/
#include "nativebridge/native_bridge.h"
#define LOG_TAG "nativebridge"
#include <dlfcn.h>
#include <errno.h>
#include <string.h>
#include <log/log.h>
namespace android {
namespace {
void* GetLibHandle() {
static void* handle = dlopen("libnativebridge.so", RTLD_NOW);
LOG_FATAL_IF(handle == nullptr, "Failed to load libnativebridge.so: %s", dlerror());
return handle;
}
template <typename FuncPtr>
FuncPtr GetFuncPtr(const char* function_name) {
auto f = reinterpret_cast<FuncPtr>(dlsym(GetLibHandle(), function_name));
LOG_FATAL_IF(f == nullptr, "Failed to get address of %s: %s", function_name, dlerror());
return f;
}
#define GET_FUNC_PTR(name) GetFuncPtr<decltype(&(name))>(#name)
} // namespace
bool NeedsNativeBridge(const char* instruction_set) {
static auto f = GET_FUNC_PTR(NeedsNativeBridge);
return f(instruction_set);
}
bool PreInitializeNativeBridge(const char* app_data_dir, const char* instruction_set) {
static auto f = GET_FUNC_PTR(PreInitializeNativeBridge);
return f(app_data_dir, instruction_set);
}
bool NativeBridgeAvailable() {
static auto f = GET_FUNC_PTR(NativeBridgeAvailable);
return f();
}
bool NativeBridgeInitialized() {
static auto f = GET_FUNC_PTR(NativeBridgeInitialized);
return f();
}
void* NativeBridgeGetTrampoline(void* handle, const char* name, const char* shorty, uint32_t len) {
static auto f = GET_FUNC_PTR(NativeBridgeGetTrampoline);
return f(handle, name, shorty, len);
}
const char* NativeBridgeGetError() {
static auto f = GET_FUNC_PTR(NativeBridgeGetError);
return f();
}
#undef GET_FUNC_PTR
} // namespace android
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