106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/*
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* Copyright 2018, 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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//#define LOG_NDEBUG 0
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#define LOG_TAG "C2PlatformStorePluginLoader"
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#include <dlfcn.h>
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#include <utils/Log.h>
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#include "C2PlatformStorePluginLoader.h"
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/* static */ android::Mutex C2PlatformStorePluginLoader::sMutex;
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/* static */ std::unique_ptr<C2PlatformStorePluginLoader> C2PlatformStorePluginLoader::sInstance;
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namespace /* unnamed */ {
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constexpr const char kStorePluginPath[] = "libc2plugin_store.so";
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} // unnamed
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C2PlatformStorePluginLoader::C2PlatformStorePluginLoader(const char *libPath)
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: mCreateBlockPool(nullptr),
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mCreateAllocator(nullptr) {
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mLibHandle = dlopen(libPath, RTLD_NOW | RTLD_NODELETE);
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if (mLibHandle == nullptr) {
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ALOGD("Failed to load library: %s (%s)", libPath, dlerror());
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return;
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}
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mCreateBlockPool = (CreateBlockPoolFunc)dlsym(mLibHandle, "CreateBlockPool");
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if (mCreateBlockPool == nullptr) {
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ALOGD("Failed to find symbol: CreateBlockPool (%s)", dlerror());
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}
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mCreateAllocator = (CreateAllocatorFunc)dlsym(mLibHandle, "CreateAllocator");
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if (mCreateAllocator == nullptr) {
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ALOGD("Failed to find symbol: CreateAllocator (%s)", dlerror());
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}
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}
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C2PlatformStorePluginLoader::~C2PlatformStorePluginLoader() {
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if (mLibHandle != nullptr) {
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ALOGV("Closing handle");
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dlclose(mLibHandle);
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}
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}
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c2_status_t C2PlatformStorePluginLoader::createBlockPool(
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::C2Allocator::id_t allocatorId, ::C2BlockPool::local_id_t blockPoolId,
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std::shared_ptr<C2BlockPool>* pool,
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std::function<void(C2BlockPool *)> deleter) {
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if (mCreateBlockPool == nullptr) {
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ALOGD("Handle or CreateBlockPool symbol is null");
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return C2_NOT_FOUND;
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}
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std::shared_ptr<::C2BlockPool> ptr(mCreateBlockPool(allocatorId, blockPoolId), deleter);
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if (ptr) {
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*pool = ptr;
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return C2_OK;
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}
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ALOGD("Failed to CreateBlockPool by allocator id: %u", allocatorId);
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return C2_BAD_INDEX;
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}
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c2_status_t C2PlatformStorePluginLoader::createAllocator(
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::C2Allocator::id_t allocatorId,
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std::shared_ptr<C2Allocator>* const allocator,
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std::function<void(C2Allocator *)> deleter) {
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if (mCreateAllocator == nullptr) {
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ALOGD("Handle or CreateAllocator symbol is null");
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return C2_NOT_FOUND;
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}
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c2_status_t res = C2_CORRUPTED;
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allocator->reset(mCreateAllocator(allocatorId, &res), deleter);
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if (res != C2_OK) {
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ALOGD("Failed to CreateAllocator by id: %u, res: %d", allocatorId, res);
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allocator->reset();
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return res;
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}
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return C2_OK;
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}
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// static
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const std::unique_ptr<C2PlatformStorePluginLoader>& C2PlatformStorePluginLoader::GetInstance() {
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android::Mutex::Autolock _l(sMutex);
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if (!sInstance) {
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ALOGV("Loading library");
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sInstance.reset(new C2PlatformStorePluginLoader(kStorePluginPath));
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}
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return sInstance;
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}
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