62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#ifndef _EVENT_
|
|
#define _EVENT_
|
|
|
|
#include <iostream>
|
|
#include <map>
|
|
#include <vector>
|
|
#include <string>
|
|
#include <functional>
|
|
#include "runner.hpp"
|
|
|
|
using namespace std;
|
|
|
|
namespace marcelb {
|
|
|
|
/**
|
|
* Event class, for event-driven programming.
|
|
* These events are typed according to the arguments of the callback function
|
|
*/
|
|
template<typename... T>
|
|
class event {
|
|
private:
|
|
mutex m_eve;
|
|
unordered_map<string, vector<function<void(T...)>>> events;
|
|
|
|
public:
|
|
|
|
/**
|
|
* Defines event by key, and callback function
|
|
*/
|
|
void on(const string& key, function<void(T...)> callback) {
|
|
lock_guard _off(m_eve);
|
|
events[key].push_back(callback);
|
|
}
|
|
|
|
/**
|
|
* It emits an event and sends a callback function saved according to the key with the passed parameters
|
|
*/
|
|
template<typename... Args>
|
|
void emit(const string& key, Args... args) {
|
|
auto it_eve = events.find(key);
|
|
if (it_eve != events.end()) {
|
|
for (uint i =0; i<it_eve->second.size(); i++) {
|
|
auto callback = bind(it_eve->second[i], forward<Args>(args)...);
|
|
_asyncon.put_task(callback);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove an event listener from an event
|
|
*/
|
|
void off(const string& key) {
|
|
lock_guard _off(m_eve);
|
|
events.erase(key);
|
|
}
|
|
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif |