polybar-dwm/include/registry.hpp

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2016-05-19 14:41:06 +00:00
#ifndef _REGISTRY_HPP_
#define _REGISTRY_HPP_
#include <condition_variable>
#include "exception.hpp"
#include "modules/base.hpp"
DefineBaseException(RegistryError);
DefineChildException(ModuleNotFound, RegistryError);
struct ModuleEntry
{
concurrency::Atomic<bool> warmedup;
std::unique_ptr<modules::ModuleInterface> module;
ModuleEntry(std::unique_ptr<modules::ModuleInterface> &&module)
{
this->warmedup = false;
this->module.swap(module);
}
};
class Registry
{
// Stopped and no loaded modules
const int STAGE_1 = 1;
// Modules loaded but waiting for initial broadcast
const int STAGE_2 = 2;
// Running
const int STAGE_3 = 3;
// Unloading modules
const int STAGE_4 = 4;
concurrency::Atomic<int> stage;
std::vector<std::unique_ptr<ModuleEntry>> modules;
std::mutex wait_mtx;
std::condition_variable wait_cv;
public:
Registry();
bool ready();
void insert(std::unique_ptr<modules::ModuleInterface> &&module);
void load();
void unload();
bool wait();
void notify(const std::string& module_name);
std::string get(const std::string& module_name);
std::unique_ptr<ModuleEntry>& find(const std::string& module_name) throw(ModuleNotFound);
};
std::shared_ptr<Registry> &get_registry();
#endif