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#pragma once
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
# include <winevt.h>
#else
# include <dlfcn.h>
# include <unistd.h>
#endif
#include <filesystem>
namespace fs = std::filesystem;
#ifdef _WIN32
using dl_handle = std::remove_pointer_t<HMODULE>;
struct dl_handle_deleter {
void operator()(HMODULE handle) {
FreeLibrary(handle);
}
};
static inline dl_handle * dl_load_library(const fs::path & path) {
// suppress error dialogs for missing DLLs
DWORD old_mode = SetErrorMode(SEM_FAILCRITICALERRORS);
SetErrorMode(old_mode | SEM_FAILCRITICALERRORS);
HMODULE handle = LoadLibraryW(path.wstring().c_str());
SetErrorMode(old_mode);
return handle;
}
static inline void * dl_get_sym(dl_handle * handle, const char * name) {
DWORD old_mode = SetErrorMode(SEM_FAILCRITICALERRORS);
SetErrorMode(old_mode | SEM_FAILCRITICALERRORS);
void * p = (void *) GetProcAddress(handle, name);
SetErrorMode(old_mode);
return p;
}
static inline const char * dl_error() {
return "";
}
#else
using dl_handle = void;
struct dl_handle_deleter {
void operator()(void * handle) {
dlclose(handle);
}
};
static inline dl_handle * dl_load_library(const fs::path & path) {
dl_handle * handle = dlopen(path.string().c_str(), RTLD_NOW | RTLD_LOCAL);
return handle;
}
static inline void * dl_get_sym(dl_handle * handle, const char * name) {
return dlsym(handle, name);
}
static inline const char * dl_error() {
const char *rslt = dlerror();
return rslt != nullptr ? rslt : "";
}
#endif
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