CAF C++ actor 模型框架 项目简介
CAF —— C++ actor 模型框架,借鉴了 erlang 和 akka 的actor思想。使用C++现代编程规模实现。特点是:轻量级、分布式、简单、可适应以及无锁。下载和构建:git clone https://github.com/actor-framework/actor-framework
cd actor-framework
./configure
make
make install [as root, optional]示例代码:#include <string>
#include <iostream>
#include "caf/all.hpp"
using namespace std;
using namespace caf;
behavior mirror(event_based_actor* self) {
// return the (initial) actor behavior
return {
// a handler for messages containing a single string
// that replies with a string
[=](const string& what) -> string {
// prints "Hello World!" via aout
// (thread-safe cout wrapper)
aout(self) << what << endl;
// terminates this actor
// ('become' otherwise loops forever)
self->quit();
// reply "!dlroW olleH"
return string(what.rbegin(), what.rend());
}
};
}
void hello_world(event_based_actor* self, const actor& buddy) {
// send "Hello World!" to our buddy ...
self->sync_send(buddy, "Hello World!").then(
// ... wait for a response ...
[=](const string& what) {
// ... and print it
aout(self) << what << endl;
}
);
}
int main() {
// create a new actor that calls 'mirror()'
auto mirror_actor = spawn(mirror);
// create another actor that calls 'hello_world(mirror_actor)';
spawn(hello_world, mirror_actor);
// wait until all other actors we have spawned are done
await_all_actors_done();
// run cleanup code before exiting main
shutdown();
}
cd actor-framework
./configure
make
make install [as root, optional]示例代码:#include <string>
#include <iostream>
#include "caf/all.hpp"
using namespace std;
using namespace caf;
behavior mirror(event_based_actor* self) {
// return the (initial) actor behavior
return {
// a handler for messages containing a single string
// that replies with a string
[=](const string& what) -> string {
// prints "Hello World!" via aout
// (thread-safe cout wrapper)
aout(self) << what << endl;
// terminates this actor
// ('become' otherwise loops forever)
self->quit();
// reply "!dlroW olleH"
return string(what.rbegin(), what.rend());
}
};
}
void hello_world(event_based_actor* self, const actor& buddy) {
// send "Hello World!" to our buddy ...
self->sync_send(buddy, "Hello World!").then(
// ... wait for a response ...
[=](const string& what) {
// ... and print it
aout(self) << what << endl;
}
);
}
int main() {
// create a new actor that calls 'mirror()'
auto mirror_actor = spawn(mirror);
// create another actor that calls 'hello_world(mirror_actor)';
spawn(hello_world, mirror_actor);
// wait until all other actors we have spawned are done
await_all_actors_done();
// run cleanup code before exiting main
shutdown();
}