83 lines
3.0 KiB
C++
83 lines
3.0 KiB
C++
/* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#define LOG_TAG "DataItemsFactoryProxy"
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#include <dlfcn.h>
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#include <DataItemId.h>
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#include <IDataItemCore.h>
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#include <DataItemsFactoryProxy.h>
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#include <loc_pla.h>
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#include <log_util.h>
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#include "loc_misc_utils.h"
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namespace loc_core
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{
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void* DataItemsFactoryProxy::dataItemLibHandle = NULL;
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get_concrete_data_item_fn* DataItemsFactoryProxy::getConcreteDIFunc = NULL;
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IDataItemCore* DataItemsFactoryProxy::createNewDataItem(DataItemId id)
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{
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IDataItemCore *mydi = nullptr;
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if (NULL != getConcreteDIFunc) {
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mydi = (*getConcreteDIFunc)(id);
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}
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else {
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getConcreteDIFunc = (get_concrete_data_item_fn * )
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dlGetSymFromLib(dataItemLibHandle, DATA_ITEMS_LIB_NAME, DATA_ITEMS_GET_CONCRETE_DI);
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if (NULL != getConcreteDIFunc) {
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LOC_LOGd("Loaded function %s : %p", DATA_ITEMS_GET_CONCRETE_DI, getConcreteDIFunc);
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mydi = (*getConcreteDIFunc)(id);
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}
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else {
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// dlysm failed.
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const char * err = dlerror();
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if (NULL == err)
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{
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err = "Unknown";
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}
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LOC_LOGe("failed to find symbol %s; error=%s", DATA_ITEMS_GET_CONCRETE_DI, err);
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}
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}
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return mydi;
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}
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void DataItemsFactoryProxy::closeDataItemLibraryHandle()
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{
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if (NULL != dataItemLibHandle) {
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dlclose(dataItemLibHandle);
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dataItemLibHandle = NULL;
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}
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}
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} // namespace loc_core
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