.\" Man page generated from reStructuredText. . . .nr rst2man-indent-level 0 . .de1 rstReportMargin \\$1 \\n[an-margin] level \\n[rst2man-indent-level] level margin: \\n[rst2man-indent\\n[rst2man-indent-level]] - \\n[rst2man-indent0] \\n[rst2man-indent1] \\n[rst2man-indent2] .. .de1 INDENT .\" .rstReportMargin pre: . RS \\$1 . nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin] . nr rst2man-indent-level +1 .\" .rstReportMargin post: .. .de UNINDENT . RE .\" indent \\n[an-margin] .\" old: \\n[rst2man-indent\\n[rst2man-indent-level]] .nr rst2man-indent-level -1 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]] .in \\n[rst2man-indent\\n[rst2man-indent-level]]u .. .TH "MEMCACHED_TOUCH_BY_KEY" "3" "Mar 11, 2024" "1.1" "libmemcached-awesome" .SH NAME memcached_touch_by_key \- libmemcached Documentation .SH SYNOPSIS .INDENT 0.0 .TP .B #include Compile and link with \-lmemcached .UNINDENT .INDENT 0.0 .TP .B \fI\%memcached_return_t\fP memcached_touch(\fI\%memcached_st\fP *ptr, const char *key, size_t key_length, time_t expiration) .INDENT 7.0 .TP .B Parameters .INDENT 7.0 .IP \(bu 2 \fBptr\fP \-\- pointer to initialized \fI\%memcached_st\fP struct .IP \(bu 2 \fBkey\fP \-\- the key to touch .IP \(bu 2 \fBkey_length\fP \-\- the length of \fI\%key\fP without any terminating zero .IP \(bu 2 \fBexpiration\fP \-\- new expiration as a unix timestamp or as relative expiration time in seconds .UNINDENT .TP .B Returns \fI\%memcached_return_t\fP indicating success .UNINDENT .UNINDENT .INDENT 0.0 .TP .B \fI\%memcached_return_t\fP memcached_touch_by_key(\fI\%memcached_st\fP *ptr, const char *group_key, size_t group_key_length, const char *key, size_t key_length, time_t expiration) .INDENT 7.0 .TP .B Parameters .INDENT 7.0 .IP \(bu 2 \fBptr\fP \-\- pointer to initialized \fI\%memcached_st\fP struct .IP \(bu 2 \fBgroup_key\fP \-\- the \fI\%key\fP namespace .IP \(bu 2 \fBgroup_key_length\fP \-\- the length of \fI\%group_key\fP without any terminating zero .IP \(bu 2 \fBkey\fP \-\- the key to touch .IP \(bu 2 \fBkey_length\fP \-\- the length of \fI\%key\fP without any terminating zero .IP \(bu 2 \fBexpiration\fP \-\- new expiration as a unix timestamp or as relative expiration time in seconds .UNINDENT .TP .B Returns \fI\%memcached_return_t\fP indicating success .UNINDENT .UNINDENT .SH DESCRIPTION .sp \fI\%memcached_touch()\fP is used to update the expiration time on an existing key. \fI\%memcached_touch_by_key()\fP works the same, but it takes a master key to find the given value. .SH RETURN VALUE .sp A value of type \fI\%memcached_return_t\fP is returned. On success that value will be \fI\%MEMCACHED_SUCCESS\fP\&. Use \fI\%memcached_strerror()\fP to translate this value to a printable string. .SH SEE ALSO .sp \fBmemcached(1)\fP \fBlibmemcached(3)\fP \fBmemcached_strerror(3)\fP .\" Generated by docutils manpage writer. .