https://github.com/bunnysakura/cppzmq-ipc
一个基于ZeroMQ实现的订阅发布机制IPC通信库。
https://github.com/bunnysakura/cppzmq-ipc
cppzmq ipc middleware zeromq zmq
Last synced: 16 days ago
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一个基于ZeroMQ实现的订阅发布机制IPC通信库。
- Host: GitHub
- URL: https://github.com/bunnysakura/cppzmq-ipc
- Owner: BunnySakura
- Created: 2023-05-02T12:07:30.000Z (over 2 years ago)
- Default Branch: master
- Last Pushed: 2024-03-14T02:34:38.000Z (over 1 year ago)
- Last Synced: 2024-11-14T13:20:29.569Z (11 months ago)
- Topics: cppzmq, ipc, middleware, zeromq, zmq
- Language: C++
- Homepage:
- Size: 63.5 KB
- Stars: 3
- Watchers: 1
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# cppzmq-ipc
一个基于[ZeroMQ]实现的订阅发布机制**IPC**通信库。
## 开始
### 1. zmq_ipc
```c++
#include "zmq_ipc.h"
int main(){
ZmqIpc zipc;
auto callback = [](const std::string &topic, const std::vector &message) {
std::cout << topic << std::endl;
for (auto &byte : message) {
// 处理消息
}
};
zipc.Init(callback, 8, "tcp://localhost:5556", "tcp://localhost:5555");
zipc.Subscribe("hello"); // 订阅主题为“hello”的消息
zipc.Publish("hello", {'w', 'o', 'r', 'l', 'd'}); // 发送主题为“hello”的消息，消息内容为“world"
zipc.Unsubscribe("hello"); // 取消订阅主题为“hello”的消息
}
```
### 2. zmq_proxy
**消息发布订阅的中继代理。**
```shell
A relay agent for subscriptions and publications
Usage:
zmq_proxy [OPTION...]
-h, --help Print usage
-d, --debug Enable debugging
-v, --version Print version information and then exit
-t, --tcp Use TCP as the channel
-i, --ipc Use IPC as the channel
-s, --subscriber arg Subscriber, such as "ipc:///tmp/zmq_proxy_pub" or
"tcp://*:5555"
-p, --publisher arg Publisher, such as "ipc:///tmp/zmq_proxy_sub" or
"tcp://*:5556"
```
## 设计
初始的`Pub-sub`通信方式实现了一个发布者，多个订阅者的通信模型，但是如果存在多个发布者和多个订阅者时，就会让链路变复杂。
于是设置中继代理，让所有服务发布消息到代理的订阅端口；同时所有服务也从代理的发布端口接收广播。
而代理的功能就是把所有来自订阅端口的消息转发到发布端口。
```mermaid
graph LR
subgraph Proxy
ProxySub --> ProxyPub
end
subgraph Publisher
A(Service A) --> ProxySub
B(Service B) --> ProxySub
C(Service C) --> ProxySub
end
subgraph Subscriber
ProxyPub --> D(Service A)
ProxyPub --> E(Service B)
ProxyPub --> F(Service C)
end
```
[ZeroMQ]: https://zeromq.org/ "ZeroMQ"