Galantsev, Dmitrii
ea624cbb7c
Change-Id: I3cbb787ef27d90486b212dfb1a8c77c460acc2ac
Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>
[ROCm/rdc commit: 434e40305d]
98 строки
2.9 KiB
C++
98 строки
2.9 KiB
C++
/*
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Copyright (c) 2020 - present Advanced Micro Devices, Inc. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef INCLUDE_RDC_LIB_RDCLIBRARYLOADER_H_
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#define INCLUDE_RDC_LIB_RDCLIBRARYLOADER_H_
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#include <dlfcn.h>
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#include <string.h>
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#include <map>
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#include <mutex> // NOLINT(build/c++11)
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#include "rdc/rdc.h"
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#include "rdc_lib/RdcLogger.h"
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#include "rdc_lib/rdc_common.h"
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namespace amd {
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namespace rdc {
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class RdcLibraryLoader {
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public:
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RdcLibraryLoader();
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rdc_status_t load(const char* filename);
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template <typename T>
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rdc_status_t load_symbol(T* func_handler, const char* func_name);
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template <typename T>
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rdc_status_t load(const char* filename, T* func_make_handler);
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rdc_status_t unload();
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~RdcLibraryLoader();
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private:
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void* libHandler_;
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std::mutex library_mutex_;
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};
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template <typename T>
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rdc_status_t RdcLibraryLoader::load_symbol(T* func_handler, const char* func_name) {
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if (!libHandler_) {
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RDC_LOG(RDC_ERROR, "Must load the library before load the symbol");
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return RDC_ST_FAIL_LOAD_MODULE;
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}
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if (!func_handler || !func_name) {
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return RDC_ST_FAIL_LOAD_MODULE;
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}
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std::lock_guard<std::mutex> guard(library_mutex_);
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*reinterpret_cast<void**>(func_handler) = dlsym(libHandler_, func_name);
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if (*func_handler == nullptr) {
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char* error = dlerror();
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RDC_LOG(RDC_ERROR, "RdcLibraryLoader: Fail to load the symbol " << func_name << ": " << error);
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return RDC_ST_FAIL_LOAD_MODULE;
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}
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return RDC_ST_OK;
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}
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template <typename T>
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rdc_status_t RdcLibraryLoader::load(const char* filename, T* func_make_handler) {
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if (filename == nullptr || func_make_handler == nullptr) {
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return RDC_ST_FAIL_LOAD_MODULE;
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}
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rdc_status_t status = load(filename);
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if (status != RDC_ST_OK) {
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return status;
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}
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return load_symbol(func_make_handler, "make_handler");
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}
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} // namespace rdc
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} // namespace amd
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#endif // INCLUDE_RDC_LIB_RDCLIBRARYLOADER_H_
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