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#ifndef CHANGE_SRC_ACTUAL_FUNCTION_H_
#define CHANGE_SRC_ACTUAL_FUNCTION_H_
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <dlfcn.h>
#include <memory>
#include <cstring>
#include "init/alloc.h"
namespace actual {
template <class Result, typename... Arguments>
using ptr = Result(*)(Arguments...);
template <typename FunctionPtr>
FunctionPtr get_ptr(const std::string& symbol_name) {
init::dlsymContext guard;
const void* symbol_address{ dlsym(RTLD_NEXT, symbol_name.c_str()) };
FunctionPtr actual_function{};
std::memcpy(&actual_function, &symbol_address, sizeof(symbol_address));
return actual_function;
}
}
#endif // CHANGE_SRC_ACTUAL_FUNCTION_H_
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