mioupo/mosquitto-1.4.11-opt

这里是我对mosquitto的优化版本，并增加了查询在线状态等功能。

mosquitto-1.4.11-opt是由jason.hou（email:[email protected]）完成代码优化，并添加了部分新功能： （1）优化mosquitto性能，采用了epoll代替poll、hash表加速订阅树遍历速度等措施，使得mosquitto的性能有了质的提升； （2）增加了上下线通知的功能，即无需客户端做任何动作，优化后的mosquitto会在客户端连接建立和断开时向配置文件中指定的topic发送通知（通知会写明是哪个连接断开或者建立了）； （3）增加了动态修改指定连接的keepalive的功能，为实现动态心跳打下了基础； （4）增加了导出当前mosquitto中所有在线客户端的连接id的功能；

Eclipse Mosquitto

Mosquitto is an open source implementation of a server for version 3.1 and 3.1.1 of the MQTT protocol. It also includes a C and C++ client library, and the mosquitto_pub and mosquitto_sub utilities for publishing and subscribing.

Links

See the following links for more information on MQTT:

• Community page: http://mqtt.org/
• MQTT v3.1.1 standard: http://docs.oasis-open.org/mqtt/mqtt/v3.1.1/mqtt-v3.1.1.html

Mosquitto project information is available at the following locations:

• Main homepage: http://mosquitto.org/
• Find existing bugs or submit a new bug: https://github.com/eclipse/mosquitto/issues
• Source code repository: https://github.com/eclipse/mosquitto

There is also a public test server available at http://test.mosquitto.org/

Installing

See http://mosquitto.org/download/ for details on installing binaries for various platforms.

Quick start

If you have installed a binary package the broker should have been started automatically. If not, it can be started with a basic configuration:

mosquitto

Then use mosquitto_sub to subscribe to a topic:

mosquitto_sub -t 'test/topic' -v

And to publish a message:

mosquitto_pub -t 'test/topic' -m 'hello world'

Documentation

Documentation for the broker, clients and client library API can be found in the man pages, which are available online at http://mosquitto.org/man/. There are also pages with an introduction to the features of MQTT, the mosquitto_passwd utility for dealing with username/passwords, and a description of the configuration file options available for the broker.

Detailed client library API documentation can be found at http://mosquitto.org/api/

Building from source

To build from source the recommended route for end users is to download the archive from http://mosquitto.org/download/.

On Windows and Mac, use cmake to build. On other platforms, just run make to build. For Windows, see also readme-windows.md.

If you are building from the git repository then the documentation will not already be built. Use make binary to skip building the man pages, or install docbook-xsl on Debian/Ubuntu systems.

Build Dependencies

• c-ares (libc-ares-dev on Debian based systems) - disable with make WITH_DNS_SRV=no
• libuuid (uuid-dev) - disable with make WITH_UUID=no
• libwebsockets (libwebsockets-dev) - enable with make WITH_LIBWEBSOCKETS=yes
• openssl (libssl-dev on Debian based systems) - disable with make WITH_TLS=no

Credits

Mosquitto was written by Roger Light [email protected]

Master: Develop: Fixes: