swoole2 - Worker process and TaskWorker

1.swoole process model

　　swoole is a framework for a multi-process model, when starting a process swoole application, altogether will create 2 + n + m threads, n is the number of worker processes, m is TaskWorker number of processes, a master process and a manager process, relationship As shown below

　　

　　Master process-based process, which creates Manager processes, Reactor threading Work / thread

　　Where the relationship between the three processes are:

　　Reactor threads:

• Responsible for maintaining client TCPconnections, network processing IO, protocol processing, send and receive data
• It is completely non-blocking asynchronous mode
• All of Cthe code, in addition to Start/ Shudownevent callback, but does not execute any PHP code
• The TCPclient buffering incoming data, spliced, split into a complete request packet
• ReactorOperate in a multi-threaded manner

　　Worker process

• Accepted by the Reactorthread posted request packet, and executes the PHPcallback data processing
• Generating response data and sent to Reactorthe thread, the Reactorsending thread to the TCPclient
• Can be asynchronous non-blocking mode, it can be synchronous blocking mode
• WorkerRun as multiple processes

　　TaskWorker process 

• Accepted by the Workerprocess by the swoole_server->task/taskwaitmethod of delivery of mission
• Processing tasks, and returns the data (using swoole_server->finish) to the Workerprocess
• Completely synchronous blocking mode
• TaskWorkerRun as multiple processes