Apache HTTP Server Version 2.4 (original) (raw)
Apache Module mod_proxy_fdpass
| Description: | fdpass external process support module formod_proxy |
|---|---|
| Status: | Extension |
| Module Identifier: | proxy_fdpass_module |
| Source File: | mod_proxy_fdpass.c |
| Compatibility: | Available for unix in version 2.3 and later |
Summary
This module requires the service of [mod_proxy](../mod/mod%5Fproxy.html). It provides support for the passing the socket of the client to another process.
mod_proxy_fdpass uses the ability of AF_UNIX domain sockets to pass an open file descriptor to allow another process to finish handling a request.
The module has a proxy_fdpass_flusher provider interface, which allows another module to optionally send the response headers, or even the start of the response body. The default flush provider disables keep-alive, and sends the response headers, letting the external process just send a response body.
In order to use another provider, you have to set the flusher parameter in the [ProxyPass](../mod/mod%5Fproxy.html#proxypass) directive.
At this time the only data passed to the external process is the client socket. To receive a client socket, call recvfrom with an allocatedstruct cmsghdr. Future versions of this module may include more data after the client socket, but this is not implemented at this time.
Comments
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