52 lines
1.0 KiB
Plaintext
52 lines
1.0 KiB
Plaintext
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=================
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FastCGI Internals
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=================
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---------------
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Module: fastcgi
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---------------
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:Author: Jan Kneschke
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:Date: $Date: 2004/08/01 07:01:29 $
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:Revision: $Revision: 1.1 $
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:abstract:
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This is a short summary of the state-engine which is driving the FastCGI
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module. It describes the basic concepts and the way the different parts
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of the module are connected.
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.. meta::
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:keywords: lighttpd, state-engine, fastcgi
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.. contents:: Table of Contents
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Description
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===========
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States
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------
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The state-engine is currently made of 6 states which are walk-through on
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the way each connection.
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:init:
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prepare fastcgi-connection
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:connect:
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waiting for a connection
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:prepwrite:
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build the fastcgi-request
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:write:
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write the fastcgi-request to the network
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:read:
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read fastcgi-response from network and push it to the write-queue
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:close:
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terminate the connection
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.. image:: fastcgi-state.png
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Delays
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------
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connect, write and read may need to wait for an fdevent. That's the reason
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for the loop in the state-diagram.
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