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mirror of synced 2024-12-21 03:55:56 +01:00
ImHex/plugins/script_loader/include/loaders/loader.hpp
2024-06-07 21:27:01 +02:00

100 lines
2.3 KiB
C++

#pragma once
#include <functional>
#include <string>
#include <vector>
#include <hex/helpers/utils.hpp>
#if defined(OS_WINDOWS)
#include <Windows.h>
#else
#include <dlfcn.h>
#endif
namespace hex::script::loader {
class ScriptLoader;
struct Script {
std::string name;
std::fs::path path;
bool background;
std::function<void()> entryPoint;
const ScriptLoader *loader;
};
class ScriptLoader {
public:
ScriptLoader(std::string typeName) : m_typeName(std::move(typeName)) {}
virtual ~ScriptLoader() = default;
virtual bool initialize() = 0;
virtual bool loadAll() = 0;
virtual void clearScripts() = 0;
void addScript(std::string name, std::fs::path path, bool background, std::function<void()> entryPoint) {
m_scripts.emplace_back(std::move(name), std::move(path), background, std::move(entryPoint), this);
}
const auto& getScripts() const {
return m_scripts;
}
const std::string& getTypeName() const {
return m_typeName;
}
protected:
auto& getScripts() {
return m_scripts;
}
private:
std::vector<Script> m_scripts;
std::string m_typeName;
};
#if defined(OS_WINDOWS)
inline void *loadLibrary(const wchar_t *path) {
try {
HMODULE h = ::LoadLibraryW(path);
return h;
} catch (...) {
return nullptr;
}
}
inline void *loadLibrary(const char *path) {
try {
auto utf16Path = hex::utf8ToUtf16(path);
HMODULE h = ::LoadLibraryW(utf16Path.c_str());
return h;
} catch (...) {
return nullptr;
}
}
template<typename T>
T getExport(void *h, const char *name) {
try {
FARPROC f = ::GetProcAddress(static_cast<HMODULE>(h), name);
return reinterpret_cast<T>(reinterpret_cast<uintptr_t>(f));
} catch (...) {
return nullptr;
}
}
#else
inline void *loadLibrary(const char *path) {
void *h = dlopen(path, RTLD_LAZY);
return h;
}
template<typename T>
T getExport(void *h, const char *name) {
void *f = dlsym(h, name);
return reinterpret_cast<T>(f);
}
#endif
}