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Full Discussion: Consolidating Pipes
Top Forums UNIX for Advanced & Expert Users Consolidating Pipes Post 302100265 by Corona688 on Monday 18th of December 2006 10:00:07 AM
Old 12-18-2006
Consolidating Pipes

This is something I've given a lot of thought to and come up with no answer.

Say you have a data stream passing from a file, through process A, into process B. Process A only modifies a few bytes of the stream, then prints the rest of the stream unmodified. Is there any way to stream the file into process B directly instead of doing redundant reads and writes?
 

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libapache2-mod-perl2-2.0.7::docs::api::Apache2::Process(User Contributed Perl Documentlibapache2-mod-perl2-2.0.7::docs::api::Apache2::Process(3pm)

NAME
Apache2::Process - Perl API for Apache process record Synopsis use Apache2::Process (); use Apache2::ServerRec (); my $proc = $s->process; # global pool cleared on exit my $global_pool = $proc->pool; # configuration pool cleared on restart my $pconf = $proc->pconf; # short program name (e.g. httpd) my $proc_name = $proc->short_name; Description "Apache2::Process" provides the API for the Apache process object, which you can retrieve with "$s->process": use Apache2::ServerRec (); $proc = $s->process; API
"Apache2::Process" provides the following functions and/or methods: "pconf" Get configuration pool object. $p = $proc->pconf(); obj: $proc ( "Apache2::Process object" ) ret: $p ( "APR::Pool object" ) since: 2.0.00 This pool object gets cleared on server restart. "pool" Get the global pool object. $p = $proc->pool(); obj: $proc ( "Apache2::Process object" ) ret: $p ( "APR::Pool object" ) since: 2.0.00 This pool object gets cleared only on (normal) server exit "short_name" The name of the program used to execute the program $short_name = $proc->short_name(); obj: $proc ( "Apache2::Process object" ) ret: $short_name (string) e.g. "httpd" since: 2.0.00 See Also mod_perl 2.0 documentation. Copyright mod_perl 2.0 and its core modules are copyrighted under The Apache Software License, Version 2.0. Authors The mod_perl development team and numerous contributors. perl v5.14.2 2011-02-08 libapache2-mod-perl2-2.0.7::docs::api::Apache2::Process(3pm)
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