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Rename, add listeners, off all, edit readme

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trigger 0.3
marcelb 7 months ago
parent e91c7f646d
commit 22dbfe89f1
4 changed files with 254 additions and 215 deletions
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  1. 36
      README.md
  2. 27
      lib/event.hpp
  3. 44
      lib/timers.hpp
  4. 362
      test/test.cpp

36
README.md
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@ -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
@ -10,7 +16,7 @@ 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)
- Event loops
- Multiple parallel execution loops
@ -23,10 +29,10 @@ 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
#include "asynco/lib/asynco.hpp" // atask(), wait()
#include "asynco/lib/event.hpp" // event
#include "asynco/lib/timers.hpp" // interval, timeout
#include "asynco/lib/filesystem.hpp" // for async read and write files
#include "asynco/lib/asynco.hpp" // atask(), wait()
#include "asynco/lib/event.hpp" // event
#include "asynco/lib/timers.hpp" // periodic, delayed (like setInterval and setTimeout from JS)
#include "asynco/lib/filesystem.hpp" // for async read and write files
using namespace marcelb;
using namespace asynco;
@ -43,12 +49,12 @@ return 0;
Time asynchronous functions
```c++
// start interval
interval inter1 ([]() {
// start periodic
periodic inter1 ([]() {
cout << "Interval 1" << endl;
}, 1000);
// stop interval
// stop periodic
inter1.stop();
// how many times it has expired
@ -57,12 +63,12 @@ int t = inter1.ticks();
// is it stopped
bool stoped = inter1.stoped();
// start timeout
timeout time1 ( [] () {
// start delayed
delayed time1 ( [] () {
cout << "Timeout 1 " << endl;
}, 10000);
// stop timeout
// stop delayed
time1.stop();
// is it expired
@ -137,12 +143,12 @@ cout << wait(atask( [] () {
})) << endl;
/**
* 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);
@ -157,7 +163,7 @@ sleep_to(3000);
void promise_reject (int _time) {
promise<void> _promise;
timeout t( [&]() {
delayed t( [&]() {
try {
// simulate except
throw runtime_error("Error simulation");
@ -237,7 +243,7 @@ class myOwnClass : public event<int> {
myOwnClass myclass;
timeout t( [&] {
delayed t( [&] {
myclass.emit("constructed", 1);
}, 200);

27
lib/event.hpp
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@ -55,6 +55,33 @@ class event {
events.erase(key);
}
/**
* Remove all event listener
*/
void off() {
lock_guard _off(m_eve);
events.clear();
}
/**
* Get num of listeners by an event key
*/
unsigned int listeners(const string& key) {
return events[key].size();
}
/**
* Get num of all listeners
*/
unsigned int listeners() {
unsigned int listeners = 0;
for (auto& ev : events) {
listeners += ev.second.size();
}
return listeners;
}
};

44
lib/timers.hpp
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@ -1,5 +1,5 @@
#ifndef _ROTOR_
#define _ROTOT_
#ifndef _TIMERS_
#define _TIMERS_
#include "asynco.hpp"
#include <chrono>
@ -113,22 +113,22 @@ class timer {
};
/**
* Class interval for periodic execution of the callback in time in ms
* Class periodic for periodic execution of the callback in time in ms
*/
class interval {
class periodic {
shared_ptr<timer> _timer;
public:
/**
* Constructor initializes a shared pointer of type timer
*/
interval(function<void()> callback, uint64_t time) :
periodic(function<void()> callback, uint64_t time) :
_timer(make_shared<timer> (callback, time, true)) {
}
/**
* Stop interval
* The stop flag is set and interval remove it from the queue
* Stop periodic
* The stop flag is set and periodic remove it from the queue
*/
void stop() {
_timer->stop();
@ -136,51 +136,51 @@ class interval {
/**
* Run callback now
* Forces the callback function to run independently of the interval
* Forces the callback function to run independently of the periodic
*/
void now() {
_timer->now();
}
/**
* Get the number of times the interval callback was runned
* Get the number of times the periodic callback was runned
*/
uint64_t ticks() {
return _timer->ticks();
}
/**
* The logic status of the interval stop state
* The logic status of the periodic stop state
*/
bool stoped() {
return _timer->stoped();
}
/**
* The destructor stops the interval
* The destructor stops the periodic
*/
~interval() {
~periodic() {
stop();
}
};
/**
* Class timeout for delayed callback execution in ms
* Class delayed for delayed callback execution in ms
*/
class timeout {
class delayed {
shared_ptr<timer> _timer;
public:
/**
* Constructor initializes a shared pointer of type timer
*/
timeout(function<void()> callback, uint64_t time) :
delayed(function<void()> callback, uint64_t time) :
_timer(make_shared<timer> (callback, time, false)) {
}
/**
* Stop timeout
* The stop flag is set and timeout remove it from the queue
* Stop delayed
* The stop flag is set and delayed remove it from the queue
*/
void stop() {
_timer->stop();
@ -188,30 +188,30 @@ class timeout {
/**
* Run callback now
* Forces the callback function to run independently of the timeout
* Forces the callback function to run independently of the delayed
*/
void now() {
_timer->now();
}
/**
* Get the number of times the timeout callback was runned
* Get is the delayed callback runned
*/
bool expired() {
return bool(_timer->ticks());
}
/**
* The logic status of the timeout stop state
* The logic status of the delayed stop state
*/
bool stoped() {
return _timer->stoped();
}
/**
* The destructor stops the timeout
* The destructor stops the delayed
*/
~timeout() {
~delayed() {
stop();
}

362
test/test.cpp
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@ -18,7 +18,7 @@ using namespace this_thread;
void sleep_to (int _time) {
promise<void> _promise;
timeout t( [&]() {
delayed t( [&]() {
_promise.set_value();
}, _time);
@ -27,7 +27,7 @@ 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");
@ -65,249 +65,255 @@ int main () {
// --------------- TIME ASYNCHRONOUS FUNCTIONS --------------
/**
* Init interval and timeout; clear interval and timeout
*/
// /**
// * Init periodic and delayed; clear periodic and delayed
// */
interval inter1 ([&]() {
cout << "interval prvi " << rtime_ms() - start << endl;
}, 1000);
// periodic inter1 ([&]() {
// cout << "periodic prvi " << rtime_ms() - start << endl;
// }, 1000);
interval inter2 ([&]() {
cout << "interval drugi " << rtime_ms() - start << endl;
}, 2000);
// periodic inter2 ([&]() {
// cout << "periodic drugi " << rtime_ms() - start << endl;
// }, 2000);
interval inter3 ([&]() {
cout << "interval treći " << rtime_ms() - start << endl;
}, 1000);
// periodic inter3 ([&]() {
// cout << "periodic treći " << rtime_ms() - start << endl;
// }, 1000);
interval inter4 ([&]() {
// cout << "interval cetvrti " << rtime_ms() - start << endl;
cout << "Ticks " << inter3.ticks() << endl;
}, 500);
// periodic inter4 ([&]() {
// // cout << "periodic cetvrti " << rtime_ms() - start << endl;
// cout << "Ticks " << inter3.ticks() << endl;
// }, 500);
interval inter5 ([&]() {
cout << "interval peti " << rtime_ms() - start << endl;
}, 2000);
// periodic inter5 ([&]() {
// cout << "periodic peti " << rtime_ms() - start << endl;
// }, 2000);
interval inter6 ([&]() {
cout << "interval sesti " << rtime_ms() - start << endl;
}, 3000);
// periodic inter6 ([&]() {
// cout << "periodic sesti " << rtime_ms() - start << endl;
// }, 3000);
timeout time1 ( [&] () {
cout << "Close interval 1 i 2 " << rtime_ms() - start << endl;
inter1.stop();
cout << "inter1.stop " << endl;
inter2.stop();
cout << "inter2.stop " << endl;
}, 8000);
// 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);
timeout time2 ([&] () {
cout << "Close interval 3 " << rtime_ms() - start << endl;
inter3.stop();
cout << "Stoped " << inter3.stoped() << endl;
// time1.stop();
}, 5000);
// delayed time2 ([&] () {
// cout << "Close periodic 3 " << rtime_ms() - start << endl;
// inter3.stop();
// cout << "Stoped " << inter3.stoped() << endl;
// // time1.stop();
// }, 5000);
if (time2.expired()) {
cout << "isteko " << endl;
} else {
cout << "nije isteko " << endl;
}
// if (time2.expired()) {
// cout << "isteko " << endl;
// } else {
// cout << "nije isteko " << endl;
// }
// sleep(6);
// // sleep(6);
if (time2.expired()) {
cout << "isteko " << endl;
} else {
cout << "nije isteko " << endl;
}
// if (time2.expired()) {
// cout << "isteko " << endl;
// } else {
// cout << "nije isteko " << endl;
// }
// // ------------------------ MAKE FUNCTIONS ASYNCHRONOUS -------------------------
// // // ------------------------ MAKE FUNCTIONS ASYNCHRONOUS -------------------------
/**
* Run an function asyncronic
*/
// /**
// * Run an function asyncronic
// */
atask( []() {
sleep_for(2s); // only for simulate log duration function
cout << "atask 1" << endl;
return 5;
});
// atask( []() {
// sleep_for(2s); // only for simulate log duration function
// cout << "atask 1" << endl;
// return 5;
// });
/**
* Call not lambda function
*/
// /**
// * Call not lambda function
// */
atask (notLambdaFunction);
// atask (notLambdaFunction);
wait (
atask (
notLambdaFunction
)
);
// wait (
// atask (
// notLambdaFunction
// )
// );
/**
* Call class method
*/
// /**
// * Call class method
// */
clm classes;
atask( [&classes] () {
classes.classMethode();
});
// clm classes;
// atask( [&classes] () {
// classes.classMethode();
// });
sleep(5);
// sleep(5);
/**
* Wait after runned as async
*/
// /**
// * Wait after runned as async
// */
auto a = atask( []() {
sleep_for(2s); // only for simulate log duration function
cout << "atask 2" << endl;
return 5;
});
// auto a = atask( []() {
// sleep_for(2s); // only for simulate log duration function
// cout << "atask 2" << endl;
// return 5;
// });
cout << wait(a) << endl;
cout << "print after atask 2" << endl;
// cout << wait(a) << endl;
// cout << "print after atask 2" << endl;
/**
* Wait async function call and use i cout
*/
// /**
// * Wait async function call and use i cout
// */
cout << wait(atask( [] () {
sleep_for(chrono::seconds(1)); // only for simulate log duration function
cout << "wait end" << endl;
return 4;
})) << endl;
// cout << wait(atask( [] () {
// sleep_for(chrono::seconds(1)); // only for simulate log duration function
// cout << "wait end" << endl;
// return 4;
// })) << endl;
/**
* Sleep with timeout sleep implement
*/
// /**
// * Sleep with delayed sleep implement
// */
sleep_to(3000);
cout << "sleep_to " << rtime_ms() - start << endl;
// sleep_to(3000);
// cout << "sleep_to " << rtime_ms() - start << endl;
/**
* Catch promise reject
*/
// /**
// * Catch promise reject
// */
try {
promise_reject(3000);
} catch (runtime_error err) {
cout<< err.what() << endl;
}
// try {
// promise_reject(3000);
// } catch (runtime_error err) {
// cout<< err.what() << endl;
// }
cout << "promise_reject " << rtime_ms() - start << endl;
// cout << "promise_reject " << rtime_ms() - start << endl;
/**
* Nested asynchronous invocation
*/
// /**
// * Nested asynchronous invocation
// */
atask( [] {
cout << "idemo ..." << endl;
atask( [] {
cout << "ugdnježdena async funkcija " << endl;
});
});
// atask( [] {
// cout << "idemo ..." << endl;
// atask( [] {
// cout << "ugdnježdena async funkcija " << endl;
// });
// });
// // --------------- EVENTS -------------------
/**
* initialization of typed events
*/
// /**
// * initialization of typed events
// */
event<int, int> ev2int;
event<int, string> evintString;
event<> evoid;
// event<int, int> ev2int;
// event<int, string> evintString;
// event<> evoid;
ev2int.on("sum", [](int a, int b) {
cout << "Sum " << a+b << endl;
});
// ev2int.on("sum", [](int a, int b) {
// cout << "Sum " << a+b << endl;
// });
ev2int.on("sum", [](int a, int b) {
cout << "Sum done" << endl;
});
// ev2int.on("sum", [](int a, int b) {
// cout << "Sum done" << endl;
// });
evintString.on("substract", [](int a, string b) {
cout << "Substract " << a-stoi(b) << endl;
});
// evintString.on("substract", [](int a, string b) {
// cout << "Substract " << a-stoi(b) << endl;
// });
evoid.on("void", []() {
cout << "Void emited" << endl;
});
// evoid.on("void", []() {
// cout << "Void emited" << endl;
// });
string emited2 = "2";
// string emited2 = "2";
evoid.on("void", [&]() {
cout << "Void emited " << emited2 << endl;
});
// evoid.on("void", [&]() {
// cout << "Void emited " << emited2 << endl;
// });
evoid.emit("void");
sleep(1);
// evoid.emit("void");
// sleep(1);
/**
* Emit
*/
// /**
// * Emit
// */
ev2int.emit("sum", 5, 8);
// ev2int.emit("sum", 5, 8);
sleep(1);
evintString.emit("substract", 3, to_string(2));
// sleep(1);
// evintString.emit("substract", 3, to_string(2));
sleep(1);
evoid.off("void");
evoid.emit("void");
// sleep(1);
// evoid.off("void");
// evoid.emit("void");
/**
* Own class
*/
myOwnClass myclass;
// 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;
timeout t( [&] {
myclass.emit("constructed", 1);
}, 200);
// /**
// * Own class
// */
myclass.on("constructed", [] (int i) {
cout << "Constructed " << i << endl;
});
// myOwnClass myclass;
// delayed t( [&] {
// myclass.emit("constructed", 1);
// }, 200);
// myclass.on("constructed", [] (int i) {
// cout << "Constructed " << i << endl;
// });
auto status = fs::read("test1.txt");
try {
auto data = wait(status);
cout << data;
} catch (exception& err) {
cout << err.what() << endl;
}
// auto status = fs::read("test1.txt");
string data_;
auto start_read = rtime_us();
// try {
// auto data = wait(status);
// cout << data;
// } catch (exception& err) {
// cout << err.what() << endl;
// }
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;
}
});
// 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();

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