Merge branch 'multiple_init_problem' of https://git.bitelex.co/marcelb/asynco into multiple_init_problem

.gitignore

@@ -1,2 +1,3 @@
 test/test
 test/*.txt
+example

.vscode/settings.json

@@ -69,6 +69,8 @@
         "cinttypes": "cpp",
         "typeindex": "cpp",
         "typeinfo": "cpp",
-        "variant": "cpp"
+        "variant": "cpp",
+        "coroutine": "cpp",
+        "source_location": "cpp"
     }
 }

README.md

@@ -3,6 +3,12 @@
 
 A C++ library for event-driven asynchronous multi-threaded programming.
 
+## Motivation
+
+The original concept was to create an interface capable of asynchronously calling any function. It has since evolved into a library that incorporates a thread pool, each with its own event loop, event-driven programming, and functions inherently designed for asynchronous operation (including periodic and delayed functions).
+
+The asynchronous filesystem is provided solely to guide users on how to wrap any time- or IO-intensive function for asynchronous execution.
+
 ## Features
 
 - Object oriented
@@ -10,27 +16,31 @@ A C++ library for event-driven asynchronous multi-threaded programming.
 - Header only
 - Asynchronous programming
 - Multithread
-- Asynchronous timer functions: interval, timeout
+- Asynchronous timer functions: periodic, delayed (like setInterval and setTimeout from JS)
-- Typed events (on, emit, off)
+- Typed events (on, tick, off) (like EventEmitter from JS: on, emit, etc)
 - Event loops
 - Multiple parallel execution loops
 - Asynchronous file IO
+- Based on ASIO (Boost Asio)
 ## Installation
 
 Just download the latest release and unzip it into your project. 
 
 ```c++
-#define NUM_OF_RUNNERS 8                // To change the number of threads used by atask, without this it runs according to the number of cores
+#define NUM_OF_RUNNERS 8                // To change the number of threads used by asynco, without this it runs according to the number of cores
 
-#include "asynco/lib/asynco.hpp"          // atask(), wait()
+#include "asynco/lib/asynco.hpp"        // async_ (), await_()
-#include "asynco/lib/event.hpp"          // event
+#include "asynco/lib/triggers.hpp"      // trigger (event emitter)
-#include "asynco/lib/rotor.hpp"          // interval, timeout
+#include "asynco/lib/timers.hpp"        // periodic, delayed (like setInterval and setTimeout from JS)
-#include "asynco/lib/runner.hpp"         // for own loop
+#include "asynco/lib/filesystem.hpp"    // for async read and write files
-#include "asynco/lib/filesystem.hpp"     // for async read and write files
 
 using namespace marcelb;
 using namespace asynco;
-using namespace events;
+using namespace triggers;
+
+// At the end of the main function, always set
+_asynco_engine.run();
+return 0;
 
 ```
 
@@ -39,21 +49,56 @@ using namespace events;
 Time asynchronous functions
 
 ```c++
-// start interval
+// start periodic
-interval inter1 ([]() {
+periodic inter1 ([]() {
      cout << "Interval 1" << endl;
 }, 1000);
 
-// stop interval
+// stop periodic
-inter1.clear();
+inter1.stop();
+
+// how many times it has expired
+int t = inter1.ticks();
 
-// start timeout
+// is it stopped
-timeout time1 ( [] () {
+bool stoped = inter1.stoped();
+
+// start delayed
+delayed time1 ( [] () {
     cout << "Timeout 1 " << endl;
 }, 10000);
 
-// stop timeout
+// stop delayed
-time1.clear();
+time1.stop();
+
+// is it expired
+int t = time1.expired();
+
+// is it stopped
+bool stoped = time1.stoped();
+
+// If you don't want to save in a variable, but you want to start a timer, use these functions
+// And you can also save them, they are only of the shared pointer type
+
+auto d = Delayed( [](){
+    cout << "Delayed" << endl;
+}, 2000);
+
+auto p = Periodic( [](){
+    cout << "Periodic" << endl;
+}, 700);
+
+Periodic( [&] (){
+    cout << "Delayed expire " << d->expired() << endl;
+    cout << "Periodic ticks " << p->ticks() << endl;
+    cout << "Delayed stoped " << d->stoped() << endl;
+    cout << "Periodic stoped " << p->stoped() << endl;
+}, 1000);
+
+Delayed( [&](){
+    p->stop();
+}, 10000);
+
 ```
 Make functions asynchronous
 
@@ -62,9 +107,9 @@ Make functions asynchronous
 * Run an lambda function asynchronously
 */
 
-atask( []() {
+async_ ( []() {
     sleep_for(2s);   // only for simulating long duration function
-    cout << "atask" << endl;
+    cout << "nonsync " << endl;
     return 5;
 });
 
@@ -77,7 +122,7 @@ void notLambdaFunction() {
     cout << "Call to not lambda function" << endl;
 }
 
-atask (notLambdaFunction);
+async_ (notLambdaFunction);
 
 /**
  * Run class method
@@ -91,41 +136,95 @@ class clm {
 };
 
 clm classes;
-atask( [&classes] () {
+async_ ( [&classes] () {
     classes.classMethode();
 });
 
 
 
 /**
-* Wait after runned as async
+* await_ after runned as async
 */
 
-auto a = atask( []() {
+auto a = async_ ( []() {
     sleep_for(2s);   // only for simulating long duration function
-    cout << "atask" << endl;
+    cout << "nonsync " << endl;
     return 5;
 });
 
-cout << wait(a) << endl;
+cout << await_(a) << endl;
 
 /**
-* Wait async function call and use i cout
+* await_ async function call and use i cout
 */
 
-cout << wait(atask( [] () {
+cout << await_(async_ ( [] () {
     sleep_for(chrono::seconds(1)); // only for simulating long duration function
-    cout << "wait end" << endl;
+    cout << "await_ end" << endl;
     return 4;
 })) << endl;
 
+
+/**
+ *  Await all
+ **/
+
+auto a = async_ ( []() {
+    cout << "A" << endl;
+    return 3;
+});
+
+auto b = async_ ( []() {
+    cout << "B" << endl;
+    throw runtime_error("Test exception");
+    return;
+});
+
+auto c = async_ ( []() {
+    cout << "C" << endl;
+    return "Hello";
+});
+
+int a_;
+string c_;
+
+auto await_all = [&] () {
+    a_ = await_(a);
+    await_(b);
+    c_ = await_(c);
+};
+
+try {
+    await_all();
+    cout << "a_ " << a_ << " c_ " << c_ << endl;
+} catch (const exception& exc) {
+    cout << exc.what() << endl;
+}
+
+// //  same type 
+
+vector<future<void>> fut_vec;
+for (int i=0; i<5; i++) {
+    fut_vec.push_back(
+        async_ ( [i]() {
+            cout << "Async_ " << i << endl;
+        })
+    );
+}
+
+auto await_all = [&] () {
+    for (int i=0; i<fut_vec.size(); i++) {
+        await_ (fut_vec[i]);
+    }
+};
+
 /**
-* Sleep with timeout sleep implement
+* Sleep with delayed sleep implement
 */
 
 void sleep_to (int _time) {
     promise<void> _promise;
-    timeout t( [&]() {
+    delayed t( [&]() {
         _promise.set_value();
     }, _time);
 
@@ -140,7 +239,7 @@ sleep_to(3000);
 
 void promise_reject (int _time) {
     promise<void> _promise;
-    timeout t( [&]() {
+    delayed t( [&]() {
         try {
             // simulate except
             throw runtime_error("Error simulation");
@@ -166,9 +265,9 @@ Events
 * initialization of typed events
 */
 
-event<int, int> ev2int;
+trigger<int, int> ev2int;
-event<int, string> evintString;
+trigger<int, string> evintString;
-event<> evoid;
+trigger<> evoid;
 
 ev2int.on("sum", [](int a, int b) {
     cout << "Sum " << a+b << endl;
@@ -196,32 +295,32 @@ sleep(1);
 * Emit
 */
 
-ev2int.emit("sum", 5, 8);
+ev2int.tick("sum", 5, 8);
 
 sleep(1);
-evintString.emit("substract", 3, to_string(2));
+evintString.tick("substract", 3, to_string(2));
 
 sleep(1);
-evoid.emit("void");
+evoid.tick("void");
 
 // Turn off the event listener
 
 evoid.off("void");
-evoid.emit("void"); // nothing is happening
+evoid.tick("void"); // nothing is happening
 
 ```
 Extend own class whit events
 
 ```c++
-class myOwnClass : public event<int> {
+class myOwnClass : public trigger<int> {
     public:
-    myOwnClass() : event() {};
+    myOwnClass() : trigger() {};
 };
 
 myOwnClass myclass;
 
-timeout t( [&] {
+delayed t( [&] {
-    myclass.emit("constructed", 1);
+    myclass.tick("constructed", 1);
 }, 200);
 
 myclass.on("constructed", [] (int i) {
@@ -256,7 +355,7 @@ fs::write("test1.txt", "Hello world", [] (exception* error) {
 auto future_data = fs::read("test.txt");
 
 try {
-    string data = wait(future_data);
+    string data = await_(future_data);
 } catch (exception& err) {
     cout << err.what() << endl;
 }
@@ -264,7 +363,7 @@ try {
 auto future_status = fs::write("test.txt", "Hello world");
 
 try {
-    wait(future_status);
+    await_(future_status);
 } catch (exception& err) {
     cout << err.what() << endl;
 }

lib/asynco.hpp

@@ -1,7 +1,8 @@
 #ifndef _ASYNCO_
 #define _ASYNCO_
 
-#include "runner.hpp"
+#include "engine.hpp"
+#include <iostream>
 
 using namespace std;
 
@@ -12,10 +13,9 @@ namespace asynco {
  * Run the function asynchronously
 */
 template<class F, class... Args>
-auto atask(F&& f, Args&&... args) -> future<typename result_of<F(Args...)>::type> {
+auto async_(F&& f, Args&&... args) -> future<typename result_of<F(Args...)>::type> {
     using return_type = typename result_of<F(Args...)>::type;
-
+    future<return_type> res = _asynco_engine.io_context.post(boost::asio::use_future(bind(forward<F>(f), forward<Args>(args)...)));
-    future<return_type> res = _asyncon.put_task(bind(forward<F>(f), forward<Args>(args)...));
     return res;
 }
 
@@ -23,7 +23,7 @@ auto atask(F&& f, Args&&... args) -> future<typename result_of<F(Args...)>::type
  * Block until the asynchronous call completes
 */
 template<typename T>
-T wait(future<T>& r) {
+T await_(future<T>& r) {
     return r.get();
 }
 
@@ -31,7 +31,29 @@ T wait(future<T>& r) {
  * Block until the asynchronous call completes
 */
 template<typename T>
-T wait(future<T>&& r) {
+T await_(future<T>&& r) {
+    return move(r).get();
+}
+
+/**
+ * Block until the asynchronous call completes or time expired
+*/
+template<typename T>
+T await_(future<T>& r, uint64_t time) {
+    if (r.wait_for(chrono::milliseconds(time)) == std::future_status::timeout) {
+        throw runtime_error("Asynchronous execution timed out");
+    }
+    return r.get();
+}
+
+/**
+ * Block until the asynchronous call completes or time expired
+*/
+template<typename T>
+T await_(future<T>&& r, uint64_t time) {
+     if (r.wait_for(chrono::milliseconds(time)) == std::future_status::timeout) {
+        throw runtime_error("Asynchronous execution timed out");
+    } 
     return move(r).get();
 }
 

lib/define.hpp

@@ -0,0 +1,19 @@
+#ifndef _ASYNCO_DEFINE_
+#define _ASYNCO_DEFINE_
+
+namespace marcelb {
+namespace asynco {
+
+/**
+ * Alternative names of functions - mostly for the sake of more beautiful coloring of the code
+ */
+
+#define async_ marcelb::asynco::async_
+#define await_ marcelb::asynco::await_
+
+}
+}
+
+
+
+#endif

lib/engine.hpp

@@ -0,0 +1,71 @@
+#ifndef _ASYNCO_ENGINE_
+#define _ASYNCO_ENGINE_
+
+#include <vector>
+#include <memory>
+using namespace std;
+
+#include <boost/asio.hpp>
+
+namespace marcelb {
+namespace asynco {
+
+#define HW_CONCURRENCY_MINIMAL 4
+
+/**
+ * Internal anonymous class for initializing the ASIO context and thread pool
+ * !!! It is anonymous to protect against use in the initialization of other objects of the same type !!!
+*/
+class Engine {
+    public:
+    boost::asio::io_context io_context;
+
+    void run() {
+        for (auto& runner : runners) {
+            runner.join();
+        }
+    }
+    
+    private:
+
+    unique_ptr<boost::asio::io_service::work> work { [&] () {
+        return new boost::asio::io_service::work(io_context);
+    } ()};
+
+    vector<thread> runners { [&] () {
+        vector<thread> _runs;
+        unsigned int num_of_runners;
+        #ifdef NUM_OF_RUNNERS
+            num_of_runners = NUM_OF_RUNNERS;
+        #else
+            num_of_runners = thread::hardware_concurrency();
+            if (num_of_runners < HW_CONCURRENCY_MINIMAL) {
+                num_of_runners = HW_CONCURRENCY_MINIMAL;
+            }
+        #endif
+
+        for (int i=0; i<num_of_runners; i++) {
+            _runs.push_back(thread ( [this] () {
+                io_context.run();
+            }));
+        }
+
+        return _runs;
+    } ()};
+
+};
+
+
+extern Engine _asynco_engine;
+
+
+
+}
+}
+
+
+
+#endif
+
+
+

lib/event.hpp

@@ -1,66 +0,0 @@
-#ifndef _EVENT_
-#define _EVENT_
-
-#include <iostream>
-#include <map>
-#include <vector>
-#include <string>
-#include <functional>
-#include "runner.hpp"
-
-using namespace std;
-
-namespace marcelb {
-namespace asynco {
-namespace events {
-
-/**
- * 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

lib/filesystem.hpp

@@ -3,13 +3,12 @@
 
 #include "asynco.hpp"
 
+using namespace marcelb;
+using namespace asynco;
 
 #include <fstream>
-#include <iostream>
-
 using namespace std;
-using namespace marcelb;
+
-using namespace asynco;
 
 namespace marcelb {
 namespace asynco {
@@ -20,7 +19,7 @@ namespace fs {
 */
 template<typename Callback>
 void read(string path, Callback&& callback) {
-    atask( [&path, callback] () {
+    asynco::async_( [&path, callback] () {
         string content;
         try {
             string line;
@@ -49,7 +48,7 @@ void read(string path, Callback&& callback) {
  * Asynchronous file reading
 */
 future<string> read(string path) {
-    return atask( [&path] () {
+    return asynco::async_( [&path] () {
         string content;
         string line;
         ifstream file (path);
@@ -73,7 +72,7 @@ future<string> read(string path) {
 */
 template<typename Callback>
 void write(string path, string content, Callback&& callback) {
-    atask( [&path, &content, callback] () {
+    asynco::async_( [&path, &content, callback] () {
         try {
             ofstream file (path);
             if (file.is_open()) {
@@ -96,7 +95,7 @@ void write(string path, string content, Callback&& callback) {
  * Asynchronous file writing with callback after write complete
 */
 future<void> write(string path, string content) {
-    return atask( [&path, &content] () {
+    return asynco::async_( [&path, &content] () {
         ofstream file (path);
         if (file.is_open()) {
             file << content;

lib/rotor.hpp

@@ -1,239 +0,0 @@
-#ifndef _ROTOR_
-#define _ROTOT_
-
-#include "runner.hpp"
-#include "chrono"
-#include <memory>
-
-#include "iostream"
-
-using namespace std;
-using namespace marcelb;
-using namespace asynco;
-
-namespace marcelb {
-namespace asynco {
-
-/**
- * Get the time in ms from the epoch
-*/
-
-int64_t rtime_ms() {
-    return chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now()
-        .time_since_epoch())
-        .count();
-}
-
-int64_t rtime_us() {
-    return chrono::duration_cast<chrono::microseconds>(chrono::system_clock::now()
-        .time_since_epoch())
-        .count();
-}
-
-namespace {
-
-/**
- * Intern class for timer async loop
-*/
-class timer_core {
-    public:
-    mutex hangon;
-    condition_variable cv;
-    function<void()> callback;
-    int64_t time;
-    int64_t next;
-    bool repeat;
-    bool stop;
-
-    /**
-     * Timer constructor, receives a callback function and time
-    */
-    timer_core( function<void()> _callback, int64_t _time, bool _repeat):
-        callback(_callback), time(_time*1000), repeat(_repeat), stop(false) {
-            next = rtime_us() + time;
-    }
-
-    /**
-     * Stop timer
-    */
-    void clear() {
-        // lock_guard<mutex> hang(hangon);
-        stop = true;
-        cv.notify_one();
-    }
-
-    /**
-     * Destruktor of timer, call stop
-    */
-    ~timer_core() {
-        clear();
-    }
-};
-
-/**
- * Event loop for time events
-*/
-
-class rotor {
-    vector<shared_ptr<timer_core>> tcores;
-    mutex te_m;
-    bool rotating = true;
-    int64_t sampling;
-
-    condition_variable te_cv;
-
-    /**
-     * Loop method, started by the constructor in a separate runner
-     * It checks the events on the stack and sends the expired ones to the runner
-    */
-    void loop() {
-        while (rotating) {
-            vector<shared_ptr<timer_core>>::iterator next_tc;
-            shared_ptr<timer_core> next_ptr;
-
-            {
-            unique_lock<mutex> te_l(te_m);
-            te_cv.wait(te_l, [this]{ return !tcores.empty() || rotating; });
-            if (!rotating) {
-                break;
-            }
-
-            next_tc = min_element( tcores.begin(), tcores.end(),
-                [](shared_ptr<timer_core> a, shared_ptr<timer_core> b ) {
-                    return a->next < b->next;
-                }
-            );
-
-            next_ptr = *next_tc;
-            }
-
-            unique_lock<mutex> next_l(next_ptr->hangon);
-            next_ptr->cv.wait_for(next_l, chrono::microseconds(next_ptr->next - rtime_us()),  [&next_ptr] () {
-                return next_ptr->stop;
-            });
-
-            if (next_ptr->stop) {
-                remove(next_tc);
-            } else {
-                _asyncon.put_task(next_ptr->callback);
-                if (next_ptr->repeat) {
-                    next_ptr->next += next_ptr->time;
-                }
-                else {
-                    remove(next_tc);
-                }
-            }
-
-        } 
-    }
-    
-    /**
-     * The method deletes a non-repeating or stopped event from the stack
-    */
-    void remove(vector<shared_ptr<timer_core>>::iterator it) {
-        lock_guard<mutex> lock(te_m);
-        tcores.erase(it);
-        // te_cv.notify_one();
-    }
-
-    public:
-
-    /**
-     * Constructor for the rotor, starts the given loop by occupying one runner
-    */
-    rotor() {
-        _asyncon.put_task( [&] () {
-            loop();
-        });
-    };
-
-    /**
-     * Adds a time event to the stack
-    */
-    void insert(shared_ptr<timer_core> tcore) {
-        lock_guard<mutex> lock(te_m);
-        tcores.push_back(tcore);
-        te_cv.notify_one();
-    };
-
-    /**
-     * Returns the number of active events
-    */
-    int active() {
-        return tcores.size();
-    }
-
-    /**
-     * Stops all active events and stops the rotor
-    */
-    ~rotor() {
-        for (int i=0; i<tcores.size(); i++) {
-            tcores[i]->clear();
-        }
-        rotating = false;
-    }
-
-};
-
-}
-
-
-/**
- * It is intended that there is only one global declaration
-*/
-static rotor _rotor;
-
-/**
- * Core class for pure async timer functions
-*/
-
-class _timer_intern {
-    shared_ptr<timer_core> tcore;
-    public:
-
-    _timer_intern(function<void()> _callback, int64_t _time, bool repeat) {
-        tcore = make_shared<timer_core>(_callback, _time, repeat);
-        _rotor.insert(tcore);
-    }
-    
-    /**
-     * Stop interval
-    */
-    void clear() {
-        tcore->clear();
-    }
-};
-
-/**
- * Class interval for periodic execution of the callback in time in ms
-*/
-class interval : public _timer_intern {
-    public:
-
-    /**
-     * The constructor receives a callback function and an interval time
-    */
-    interval( function<void()> _callback, int64_t _time):
-        _timer_intern(_callback, _time, true) {
-    }
-};
-
-/**
- * Class interval for delayed callback execution in ms
-*/
-class timeout : public _timer_intern {
-    public:
-
-    /**
-     * The constructor receives a callback function and a delay time
-    */
-    timeout( function<void()> _callback, int64_t delay):
-        _timer_intern(_callback, delay, false) {
-    }
-
-};
-
-}
-}
-
-#endif

lib/runner.hpp

@@ -1,136 +0,0 @@
-#ifndef _RUNNER_
-#define _RUNNER_
-
-#include <thread>
-#include <vector>
-#include <queue>
-#include <functional>
-#include <mutex>
-#include <condition_variable>
-#include <future>
-
-using namespace std;
-
-namespace marcelb {
-namespace asynco {
-
-#define HW_CONCURRENCY_MINIMAL 4
-
-/**
- * The runner class implements multithread, task stack and event loop for asynchronous execution of tasks
-*/
-class runner {
-    private:
-    vector<thread> runners;
-    queue<function<void()>> tasks;
-    mutex q_io;
-    condition_variable cv;
-    bool stop;
-
-    public:
-
-    /**
-     * The constructor starts as many threads as the system has cores, 
-     * and runs an event loop inside each one. 
-     * Each event loop waits for tasks from the stack and executes them.
-    */
-    runner(unsigned int _num_of_runners = 0) : stop(false) {
-        unsigned int num_of_runners = _num_of_runners;
-
-        if (num_of_runners == 0) {
-            #ifdef NUM_OF_RUNNERS
-                num_of_runners = NUM_OF_RUNNERS;
-            #else
-                num_of_runners = thread::hardware_concurrency();
-                if (num_of_runners < HW_CONCURRENCY_MINIMAL) {
-                    num_of_runners = HW_CONCURRENCY_MINIMAL;
-                }
-            #endif
-        }
-
-        for (size_t i = 0; i < num_of_runners; ++i) {
-            runners.emplace_back( thread([&] {
-                while (!stop) {
-                    function<void()> task;
-                    {
-                        unique_lock<mutex> lock(q_io);
-                        cv.wait(lock, [this] { return stop || !tasks.empty(); });
-                        // if (stop && tasks.empty())
-                        if (stop)
-                            return;
-                        task = move(tasks.front());
-                        tasks.pop();
-                    }
-                    task();
-                }
-            }));
-        }
-    }
-
-    
-
-    /**
-     * With the method, we send the callback function and its arguments to the task stack
-    */
-    template<class F, class... Args>
-    auto put_task(F&& f, Args&&... args)
-        -> future<typename result_of<F(Args...)>::type> {
-        using return_type = typename result_of<F(Args...)>::type;
-
-        auto task = make_shared<packaged_task<return_type()>>(bind(forward<F>(f), forward<Args>(args)...));
-        future<return_type> res = task->get_future();
-        {
-            unique_lock<mutex> lock(q_io);
-
-            if (stop) {
-                throw runtime_error("Pool is stoped!");
-            }
-
-            tasks.emplace([task]() { (*task)(); });
-        }
-
-        cv.notify_one();
-        return res;
-    }
-
-    /**
-     * Returns the number of tasks the runner has to perform
-    */
-    unsigned int count_tasks() {
-        return tasks.size();
-    }
-
-    /**
-     * Returns the number of threads used by the runner
-    */
-    unsigned int count_threads() {
-        return runners.size();
-    }
-
-    /**
-     * The destructor stops all loops and stops all threads
-    */
-    ~runner() {
-        {
-            unique_lock<mutex> lock(q_io);
-            stop = true;
-        }
-        cv.notify_all();
-        for (thread& runner : runners) {
-            runner.join();
-        }
-        runners.clear();
-    }
-
-};
-
-
-/**
- * Internal global library variable
-*/
-static runner _asyncon;
-
-}
-}
-
-#endif

lib/timers.hpp

@@ -0,0 +1,161 @@
+#ifndef _ASYNCO_TIMERS_
+#define _ASYNCO_TIMERS_
+
+#include <chrono>
+using namespace std;
+
+#include "asynco.hpp"
+
+namespace marcelb {
+namespace asynco {
+
+/**
+ * Get the time in ms from the epoch
+*/
+
+int64_t rtime_ms();
+
+/**
+ * Get the time in us from the epoch
+*/
+
+int64_t rtime_us();
+
+/**
+ * Core timer class for construct time async functions
+*/
+class timer {
+    boost::asio::steady_timer st;
+    bool _stop = false;
+    bool repeate;
+    function<void()> callback;
+    uint64_t time;
+    uint64_t _ticks = 0;
+
+    /**
+     * A method to assign a callback wrapper and a reinitialization algorithm
+    */
+    void init();
+   
+    public:
+
+    /**
+     * The constructor creates the steady_timer and accompanying variables and runs a method to initialize the timer
+    */
+    timer (function<void()> _callback, uint64_t _time, bool _repeate);
+
+    /**
+     * Stop timer
+     * The stop flag is set and timer remove it from the queue
+    */
+    void stop();
+    
+    /**
+     * Run callback now
+     * Forces the callback function to run independently of the timer
+    */
+    void now();
+
+    /**
+     * Get the number of times the timer callback was runned
+    */
+    uint64_t ticks();
+
+    /**
+     * The logic status of the timer stop state
+    */
+    bool stoped();
+    /**
+     * The destructor stops the timer
+    */
+    ~timer();
+};
+
+/**
+ * Class periodic for periodic execution of the callback in time in ms
+*/
+class periodic {
+    shared_ptr<timer> _timer;
+
+    public:
+
+    /**
+     * Constructor initializes a shared pointer of type timer
+    */
+    periodic(function<void()> callback, uint64_t time);
+
+    /**
+     * Stop periodic
+     * The stop flag is set and periodic remove it from the queue
+    */
+    void stop();
+
+    /**
+     * Run callback now
+     * Forces the callback function to run independently of the periodic
+    */
+    void now();
+    
+    /**
+     * Get the number of times the periodic callback was runned
+    */
+    uint64_t ticks();
+    /**
+     * The logic status of the periodic stop state
+    */
+    bool stoped();
+    
+    /**
+     * The destructor stops the periodic
+    */
+    ~periodic();
+};
+
+/**
+ * Class delayed for delayed callback execution in ms
+*/
+class delayed {
+    shared_ptr<timer> _timer;
+
+    public:
+
+    /**
+     * Constructor initializes a shared pointer of type timer
+    */
+    delayed(function<void()> callback, uint64_t time);
+    
+    /**
+     * Stop delayed
+     * The stop flag is set and delayed remove it from the queue
+    */
+    void stop();
+
+    /**
+     * Run callback now
+     * Forces the callback function to run independently of the delayed
+    */
+    void now();
+
+    /**
+     * Get is the delayed callback runned
+    */
+    bool expired();
+    /**
+     * The logic status of the delayed stop state
+    */
+    bool stoped();
+    /**
+     * The destructor stops the delayed
+    */
+    ~delayed();
+
+};
+
+shared_ptr<periodic> Periodic(function<void()> callback, uint64_t time);
+shared_ptr<delayed> Delayed(function<void()> callback, uint64_t time);
+
+
+}
+}
+
+#endif

lib/trigger.hpp

@@ -0,0 +1,92 @@
+#ifndef _ASYNCO_TRIGGER_
+#define _ASYNCO_TRIGGER_
+
+#include <map>
+#include <vector>
+#include <string>
+#include <functional>
+
+using namespace std;
+
+#include "engine.hpp"
+namespace marcelb {
+namespace asynco {
+namespace triggers {
+
+/**
+ * trigger class, for event-driven programming.
+ * These events are typed according to the arguments of the callback function
+*/
+template<typename... T>
+class trigger {
+    private:
+    mutex m_eve;
+    unordered_map<string, vector<function<void(T...)>>> triggers;
+
+    public:
+
+    /**
+     * Defines event by key, and callback function
+    */
+    void on(const string& key, function<void(T...)> callback) {
+        lock_guard _off(m_eve);
+        triggers[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 tick(const string& key, Args... args) {
+        auto it_eve = triggers.find(key);
+        if (it_eve != triggers.end()) {
+            for (uint i =0; i<it_eve->second.size(); i++) {
+                auto callback = bind(it_eve->second[i], forward<Args>(args)...); 
+                asynco::async_(callback);
+            }
+        }
+    }
+
+    /**
+     * Remove an trigger listener from an event
+    */
+    void off(const string& key) {
+        lock_guard _off(m_eve);
+        triggers.erase(key);
+    }
+
+    /**
+     * Remove all trigger listener
+    */
+    void off() {
+        lock_guard _off(m_eve);
+        triggers.clear();
+    }
+
+
+    /**
+     * Get num of listeners by an trigger key
+    */
+    unsigned int listeners(const string& key) {
+        return triggers[key].size();
+    }
+
+    /**
+     * Get num of all listeners
+    */
+    unsigned int listeners() {
+        unsigned int listeners = 0;
+        for (auto& ev : triggers) {
+            listeners += ev.second.size();
+        }
+        return listeners;
+    }
+
+
+};
+
+}
+}
+}
+
+#endif

src/engine.cpp

@@ -0,0 +1,7 @@
+#include "../lib/engine.hpp"
+
+namespace marcelb::asynco {
+
+Engine _asynco_engine;
+
+};

src/timers.cpp

@@ -0,0 +1,145 @@
+#include "../lib/timers.hpp"
+
+namespace marcelb::asynco {
+
+int64_t rtime_ms() {
+    return chrono::duration_cast<chrono::milliseconds>(chrono::system_clock::now()
+        .time_since_epoch())
+        .count();
+}
+
+int64_t rtime_us() {
+    return chrono::duration_cast<chrono::microseconds>(chrono::system_clock::now()
+        .time_since_epoch())
+        .count();
+}
+
+void timer::init() {
+    st.async_wait( [this] (const boost::system::error_code&) {
+        if (!_stop) {
+            callback();
+            if (repeate) {
+                st = boost::asio::steady_timer(_asynco_engine.io_context, boost::asio::chrono::milliseconds(time));
+                init();
+            }
+            _ticks++;
+        }
+    });
+}
+
+timer::timer (function<void()> _callback, uint64_t _time, bool _repeate) :
+    st(_asynco_engine.io_context, boost::asio::chrono::milliseconds(_time)),
+    _stop(false),
+    repeate(_repeate),
+    callback(_callback),
+    time(_time) {
+        
+    init();
+}
+
+void timer::stop() {
+    _stop = true;
+    st.cancel();
+}
+
+void timer::now() {
+    st.cancel();
+}
+
+uint64_t timer::ticks() {
+    return _ticks;
+}
+
+bool timer::stoped() {
+    return _stop;
+}
+
+timer::~timer() {
+    stop();
+}
+
+periodic::periodic(function<void()> callback, uint64_t time) : 
+    _timer(make_shared<timer> (callback, time, true)) {
+}
+
+void periodic::stop() {
+    _timer->stop();
+}
+
+void periodic::now() {
+    _timer->now();
+}
+
+uint64_t periodic::ticks() {
+    return _timer->ticks();
+}
+
+bool periodic::stoped() {
+    return _timer->stoped();
+}
+
+periodic::~periodic() {
+    stop();
+}
+
+delayed::delayed(function<void()> callback, uint64_t time) : 
+    _timer(make_shared<timer> (callback, time, false)) {
+}
+
+void delayed::stop() {
+    _timer->stop();
+}
+
+void delayed::now() {
+    _timer->now();
+}
+
+bool delayed::expired() {
+    return bool(_timer->ticks());
+}
+
+bool delayed::stoped() {
+    return _timer->stoped();
+}
+
+delayed::~delayed() {
+    stop();
+}
+
+mutex p_io, d_io;
+vector<shared_ptr<periodic>> periodic_calls_container;
+vector<shared_ptr<delayed>> delayed_calls_container;
+
+shared_ptr<periodic> Periodic(function<void()> callback, uint64_t time) {
+    shared_ptr<periodic> periodic_ptr(make_shared<periodic>(callback, time));
+    async_ ( [&, periodic_ptr](){
+        lock_guard<mutex> lock(p_io);
+        periodic_calls_container.push_back(periodic_ptr);
+        for (uint32_t i=0; i<periodic_calls_container.size(); i++) {
+            if (periodic_calls_container[i]->stoped()) {
+                periodic_calls_container.erase(periodic_calls_container.begin()+i);
+                i--;
+            }
+        }
+    });
+    return periodic_ptr;
+}
+
+shared_ptr<delayed> Delayed(function<void()> callback, uint64_t time) {
+    shared_ptr<delayed> delayed_ptr(make_shared<delayed>(callback, time));
+    async_ ( [&, delayed_ptr](){
+        lock_guard<mutex> lock(p_io);
+        delayed_calls_container.push_back(delayed_ptr);
+        for (uint32_t i=0; i<delayed_calls_container.size(); i++) {
+            if (delayed_calls_container[i]->stoped() || delayed_calls_container[i]->expired()) {
+                delayed_calls_container.erase(delayed_calls_container.begin()+i);
+                i--;
+            }
+        }
+    });
+    return delayed_ptr;
+}
+
+
+
+};

test/compile.sh

@@ -0,0 +1 @@
+g++ test.cpp ../src/* -o test

test/test.cpp

@@ -1,22 +1,28 @@
-// #define NUM_OF_RUNNERS 2
+// // #define NUM_OF_RUNNERS 2
 
 #include "../lib/asynco.hpp"
-#include "../lib/event.hpp"
+#include "../lib/trigger.hpp"
-#include "../lib/rotor.hpp"
 #include "../lib/filesystem.hpp"
+#include "../lib/timers.hpp"
+#include "../lib/define.hpp"
+
+using namespace marcelb::asynco;
+using namespace triggers;
 
 #include <iostream>
 #include <unistd.h>
+#include <thread>
+#include <future>
+#include <vector>
 
 using namespace std;
-using namespace marcelb::asynco;
-using namespace events;
-using namespace asynco;
 using namespace this_thread;
 
+
+
 void sleep_to (int _time) {
     promise<void> _promise;
-    timeout t( [&]() {
+    delayed t( [&]() {
         _promise.set_value();
     }, _time);
 
@@ -25,7 +31,7 @@ void sleep_to (int _time) {
 
 void promise_reject (int _time) {
     promise<void> _promise;
-    timeout t( [&]() {
+    delayed t( [&]() {
         try {
             // simulate except
             throw runtime_error("Error simulation");
@@ -51,9 +57,9 @@ class clm {
 
 // ------------------ EXTEND OWN CLASS WITH EVENTS -------------------
 
-class myOwnClass : public event<int> {
+class myOwnClass : public trigger<int> {
     public:
-    myOwnClass() : event() {};
+    myOwnClass() : trigger() {};
 };
 
 
@@ -64,86 +70,93 @@ int main () {
     // --------------- TIME ASYNCHRONOUS FUNCTIONS --------------
 
     /**
-     * Init interval and timeout; clear interval and timeout
+     * Init periodic and delayed; clear periodic and delayed
     */
 
-    vector<interval> intervals;
+    // periodic inter1 ([&]() {
+    //     cout << "periodic prvi " << rtime_ms() - start << endl;
+    // }, 1000);
 
-    for(int i=0; i<10; i++) {
+    // periodic inter2 ([&]() {
-        intervals.push_back(interval( [i, &start]() {
+    //     cout << "periodic drugi " << rtime_ms() - start << endl;
-            cout << "interval " << i << " end: "  << rtime_ms() - start << endl;
+    // }, 2000);
-        }, (i%5 +1)*1000));
-    }
 
-    // interval( [&] () {
+    // periodic inter3 ([&]() {
-    //     cout << "interval 1: "  << rtime_ms() - start << endl;
+    //     cout << "periodic treći " << rtime_ms() - start << endl;
-    // }, 50);
+    // }, 1000);
 
-    // interval( [&] () {
+    // periodic inter4 ([&]() {
-    //     cout << "interval 1: "  << rtime_ms() - start << endl;
+    //     // cout << "periodic cetvrti " << rtime_ms() - start << endl;
-    // }, 100);
+    //     cout << "Ticks " << inter3.ticks() << endl;
+    // }, 500);
 
-    // interval( [&] () {
+    // periodic inter5 ([&]() {
-    //     cout << "interval 2: " << rtime_ms() - start << endl;
+    //     cout << "periodic peti " << rtime_ms() - start << endl;
-    // }, 200);
+    // }, 2000);
 
-    // interval( [&] () {
+    // periodic inter6 ([&]() {
-    //     cout << "interval 3: " << rtime_ms() - start << endl;
+    //     cout << "periodic sesti " << rtime_ms() - start << endl;
-    // }, 300);
+    // }, 3000);
 
+    // delayed time1 ( [&] () {
+    //     cout << "Close periodic 1 i 2 " << rtime_ms() - start << endl;
+    //     inter1.stop();
+    //     cout << "inter1.stop " << endl;
+    //     inter2.stop();
+    //     cout << "inter2.stop " << endl;
+    // }, 8000);
 
-    // interval( [&] () {
-    //     cout << "interval 4: "  << rtime_ms() - start << endl;
-    // }, 400);
 
-    // interval inter1 ([&]() {
+    // delayed time2 ([&] () {
-    //     cout << "interval prvi " << rtime_ms() - start << endl;
+    //     cout << "Close periodic 3 " << rtime_ms() - start << endl;
-    // }, 1000);
+    //     inter3.stop();
+    //     cout << "Stoped " << inter3.stoped() << endl;
+    //     // time1.stop();
+    // }, 5000);
 
-    // interval inter2 ([&]() {
-    //     cout << "interval drugi " << rtime_ms() - start << endl;
-    // }, 2000);
 
-    // interval inter3 ([&]() {
+    // if (time2.expired()) {
-    //     cout << "interval treći " << rtime_ms() - start << endl;
+    //     cout << "isteko " << endl;
-    // }, 3000);
+    // } else {
+    //     cout << "nije isteko " << endl;
+    // }
 
-    // interval inter4 ([&]() {
+    // // sleep(6);
-    //     cout << "interval cetvrti " << rtime_ms() - start << endl;
-    // }, 1000);
 
-    // interval inter5 ([&]() {
+    // if (time2.expired()) {
-    //     cout << "interval peti " << rtime_ms() - start << endl;
+    //     cout << "isteko " << endl;
-    // }, 2000);
+    // } else {
+    //     cout << "nije isteko " << endl;
+    // }
 
-    // interval inter6 ([&]() {
+    // auto d = Delayed( [](){
-    //     cout << "interval sesti " << rtime_ms() - start << endl;
+    //     cout << "Delayed" << endl;
-    // }, 3000);
+    // }, 2000);
 
-    // timeout time1 ( [&] () {
+    // auto p = Periodic( [](){
-    //     cout << "Close interval 1 i 2 " << rtime_ms() - start << endl;
+    //     cout << "Periodic" << endl;
-    //     // inter1.clear();
+    // }, 700);
-    //     // cout << "inter1.stop " << inter1.stop << endl;
-    //     // inter2.clear();
-    //     // cout << "inter2.stop " << inter2.stop << endl;
-    // }, 5000);
 
+    // Periodic( [&] (){
+    //     cout << "Delayed expire " << d->expired() << endl;
+    //     cout << "Periodic ticks " << p->ticks() << endl;
+    //     cout << "Delayed stoped " << d->stoped() << endl;
+    //     cout << "Periodic stoped " << p->stoped() << endl;
+    // }, 1000);
 
-    // timeout time2 ([&] () {
+    // Delayed( [&](){
-    //     cout << "Close interval 3 " << rtime_ms() - start << endl;
+    //     p->stop();
-    //     // inter3.clear();
+    // }, 10000);
-    //     time1.clear();
-    // }, 2000);
 
-    // // // ------------------------ MAKE FUNCTIONS ASYNCHRONOUS -------------------------
+    // // // // ------------------------ MAKE FUNCTIONS ASYNCHRONOUS -------------------------
 
-    // /**
+    // // /**
-    //  * Run an function asyncronic
+    // //  * Run an function asyncronic
-    // */
+    // // */
 
-    // atask( []() {
+    // async_ ( []() {
     //     sleep_for(2s);   // only for simulate log duration function
-    //     cout << "atask 1" << endl;
+    //     cout << "asynco 1" << endl;
     //     return 5;
     // });
 
@@ -151,51 +164,56 @@ int main () {
     //  * Call not lambda function
     // */
 
-    // atask (notLambdaFunction);
+    // async_ (notLambdaFunction);
 
 
-    // wait (
+    // await_ (
-    //     atask (
+    //     async_ (
     //         notLambdaFunction
     //     )
     // );
 
-    // /**
+
-    //  * Call class method
+    // // async(launch::async, [] () {
-    // */
+    // //     cout << "Another thread in async style!"  << endl;
+    // // });
+
+    // // /**
+    // //  * Call class method
+    // // */
 
     // clm classes;
-    // atask( [&classes] () {
+    // async_ ( [&classes] () {
     //     classes.classMethode();
     // });
 
     // sleep(5);
 
-    // /**
+    // // /**
-    //  * Wait after runned as async
+    // //  * await_ after runned as async
-    //  */
+    // //  */
 
-    // auto a = atask( []() {
+    // auto aa = async_ ( []() {
     //     sleep_for(2s);   // only for simulate log duration function
-    //     cout << "atask 2" << endl;
+    //     cout << "async_  2" << endl;
     //     return 5;
     // });
 
-    // cout << wait(a) << endl;
+    // cout << await_(aa) << endl;
-    // cout << "print after atask 2" << endl;
+    // cout << "print after async_  2" << endl;
 
     // /**
-    //  * Wait async function call and use i cout
+    //  * await_ async function call and use i cout
     // */
 
-    // cout << wait(atask( [] () {
+    // cout << await_(async_ ( [] () {
     //     sleep_for(chrono::seconds(1)); // only for simulate log duration function
-    //     cout << "wait end" << endl;
+    //     cout << "await_ end" << endl;
     //     return 4;
     // })) << endl;
 
     // /**
-    //  * Sleep with timeout sleep implement
+    //  * Sleep with delayed sleep implement
     // */
 
     // sleep_to(3000);
@@ -219,22 +237,76 @@ int main () {
     // */
 
 
-    // atask( [] {
+    // async_ ( [] {
     //     cout << "idemo ..." << endl;
-    //     atask( [] {
+    //     async_ ( [] {
     //         cout << "ugdnježdena async funkcija " << endl;
     //     });
     // });
 
+
+    // // -------------------------- AWAIT ALL ----------------------------------
+
+    // auto a = async_ ( []() {
+    //     cout << "A" << endl;
+    //     return 3;
+    // });
+
+    // auto b = async_ ( []() {
+    //     cout << "B" << endl;
+    //     throw runtime_error("Test exception");
+    //     return;
+    // });
+
+    // auto c = async_ ( []() {
+    //     cout << "C" << endl;
+    //     return "Hello";
+    // });
+
+    // int a_;
+    // string c_;
+
+    // auto await_all = [&] () {
+    //     a_ = await_(a);
+    //     await_(b);
+    //     c_ = await_(c);
+    // };
+
+    // try {
+    //     await_all();
+    //     cout << "a_ " << a_ << " c_ " << c_ << endl;
+    // } catch (const exception& exc) {
+    //     cout << exc.what() << endl;
+    // }
+
+    // // //  same type 
+
+    // vector<future<void>> fut_vec;
+    // for (int i=0; i<5; i++) {
+    //     fut_vec.push_back(
+    //         async_ ( [i]() {
+    //             cout << "Async_ " << i << endl;
+    //         })
+    //     );
+    // }
+
+    // auto await_all2 = [&] () {
+    //     for (int i=0; i<fut_vec.size(); i++) {
+    //         await_ (fut_vec[i]);
+    //     }
+    // };
+
+    // await_all2();
+
     // // --------------- EVENTS -------------------
 
     // /**
     //  * initialization of typed events
     // */
 
-    // event<int, int> ev2int;
+    // trigger<int, int> ev2int;
-    // event<int, string> evintString;
+    // trigger<int, string> evintString;
-    // event<> evoid;
+    // trigger<> evoid;
 
     // ev2int.on("sum", [](int a, int b) {
     //     cout << "Sum " << a+b << endl;
@@ -258,22 +330,28 @@ int main () {
     //     cout << "Void emited " << emited2 << endl;
     // });
 
-    // evoid.emit("void");
+    // evoid.tick("void");
     // sleep(1);
 
     // /**
     //  * Emit
     // */
 
-    // ev2int.emit("sum", 5, 8);
+    // ev2int.tick("sum", 5, 8);
     
 
     // sleep(1);
-    // evintString.emit("substract", 3, to_string(2));
+    // evintString.tick("substract", 3, to_string(2));
 
     // sleep(1);
     // evoid.off("void");
-    // evoid.emit("void");
+    // evoid.tick("void");
+
+
+    // cout << "Ukupno 2 int " <<  ev2int.listeners() << endl;
+    // cout << "Ukupno evintString " <<  evintString.listeners() << endl;
+    // cout << "Ukupno evoid " <<  evoid.listeners() << endl;
+    // cout << "Ukupno 2 int " <<  ev2int.listeners("sum") << endl;
 
     // /**
     //  * Own class 
@@ -281,8 +359,8 @@ int main () {
 
     // myOwnClass myclass;
 
-    // timeout t( [&] {
+    // delayed t( [&] {
-    //     myclass.emit("constructed", 1);
+    //     myclass.tick("constructed", 1);
     // }, 200);
 
     // myclass.on("constructed", [] (int i) {
@@ -295,14 +373,32 @@ int main () {
 
 
     // try {
-    //     auto data = wait(status);
+    //     auto data = await_(status);
     //     cout << data;
     // } catch (exception& err) {
     //     cout << err.what() << endl;
     // }
 
-    cout << "Sleep" << endl;
+
-    sleep(100000); // only for testing
+    // string data_;
+    // auto start_read = rtime_us();
+
+    // fs::read("test1.txt", [&data_, &start_read] (string data, exception* error) {
+    //     if (error) {
+    //         cout << "Error " << error->what() << endl;
+    //     } else {
+    //         // cout << "Data " << endl << data << endl;
+    //         // data_ = data;
+    //         // cout << "Data_" << data_ << endl;
+    //         cout << "read " << rtime_us() - start_read << endl;
+    //     }
+    // });
+
+
+    // // ----------------------------------------------------------------------------------------------------
+
+    cout << "Run" << endl;
+    _asynco_engine.run();
 
     return 0;
 }