diff options
Diffstat (limited to 'doc/s6-fdholder-retrievec.html')
| -rw-r--r-- | doc/s6-fdholder-retrievec.html | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/doc/s6-fdholder-retrievec.html b/doc/s6-fdholder-retrievec.html new file mode 100644 index 0000000..5724ee0 --- /dev/null +++ b/doc/s6-fdholder-retrievec.html @@ -0,0 +1,68 @@ +<html> + <head> + <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> + <meta http-equiv="Content-Language" content="en" /> + <title>s6: the s6-fdholder-retrievec program</title> + <meta name="Description" content="s6: the s6-fdholder-retrievec program" /> + <meta name="Keywords" content="s6 s6-fdholder fd-holding fd-holder fd retrieval unix socket activation" /> + <!-- <link rel="stylesheet" type="text/css" href="http://skarnet.org/default.css" /> --> + </head> +<body> + +<p> +<a href="index.html">s6</a><br /> +<a href="http://skarnet.org/software/">Software</a><br /> +<a href="http://skarnet.org/">skarnet.org</a> +</p> + +<h1> The <tt>s6-fdholder-retrievec</tt> program </h1> + +<p> +<tt>s6-fdholder-retrievec</tt> talks to a +<a href="s6-fdholderd.html">fd-holding daemon</a> on its open +descriptors 6 and 7, and retrieves a file descriptor from it, +then executes a program. +</p> + +<h2> Interface </h2> + +<pre> + s6-fdholder-retrievec [ -D ] [ -t <em>timeout</em> ] <em>id</em> <em>prog...</em> +</pre> + +<ul> + <li> s6-fdholder-retrievec expects to talk to a listening +<a href="s6-fdholderd.html">s6-fdholderd</a> program on its descriptors 6 and 7. </li> + <li> It attempts to retrieve a copy of the file descriptor that has been +stored into that daemon under identifier <em>id</em>. + <li> It then executes into <em>prog...</em>, with the retrieved +file descriptor as standard input. </li> +</ul> + +<h2> Options </h2> + +<ul> + <li> <tt>-D</tt> : delete the file descriptor from the server's +storage after retrieval. This option requires writing rights over the +given identifier as well as reading rights: check the server's +<a href="s6-fdholderd.html#configuration">configuration</a>. </li> + <li> <tt>-t <em>timeout</em></tt> : if the operation cannot be +processed in <em>timeout</em> milliseconds, then fail with an error message. +Communications with the server should be near-instant, so this option is +only here to protect users against programming errors. </li> +</ul> + +<h2> Notes </h2> + +<ul> + <li>s6-fdholder-retrievec is the "internal" version of +<a href="s6-fdholder-retrieve.html">s6-fdholder-retrieve</a>. It simply +expects to be run as a UCSPI client, i.e. talking to the server +over descriptors 6 and 7, instead of connecting to the server +itself. </li> + <li> The error messages for the s6-fdholder suite are explained +<a href="s6-fdholder-errorcodes.html">here</a>. </li> +</ul> + +</body> +</html> |