apr::date.3

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

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.\" ========================================================================
.\"
.IX Title "mod_perl-2.0.2::docs::api::APR::Date 3"
.TH mod_perl-2.0.2::docs::api::APR::Date 3 "2005-10-21" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
APR::Date \- Perl API for APR date manipulating functions
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 1
\&  use APR::Date ();
\&  
\&  # parse HTTP\-complient date string
\&  $date_string = \*(AqSun, 06 Nov 1994 08:49:37 GMT\*(Aq;
\&  $date_parsed = APR::Date::parse_http($date_string);
\&  
\&  # parse RFC822\-complient date string
\&  $date_string = \*(AqSun, 6 Nov 94 8:49:37 GMT\*(Aq;
\&  $date_parsed = APR::Date::parse_rfc($date_string);
.Ve
.SH "Description"
.IX Header "Description"
\&\f(CW\*(C`APR::Socket\*(C'\fR provides the Perl interface to \s-1APR\s0 date manipulating
functions.
.SH "API"
.IX Header "API"
\&\f(CW\*(C`APR::Date\*(C'\fR provides the following functions and/or methods:
.ie n .Sh """parse_http"""
.el .Sh "\f(CWparse_http\fP"
.IX Subsection "parse_http"
Parse \s-1HTTP\s0 date strings
.PP
.Vb 1
\&  $date_parsed = parse_http($date_string);
.Ve
.ie n .IP "arg1: $date_string ( string )" 4
.el .IP "arg1: \f(CW$date_string\fR ( string )" 4
.IX Item "arg1: $date_string ( string )"
The date string can be in one of the following formats:
.Sp
.Vb 3
\&  Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 822, updated by RFC 1123
\&  Sunday, 06\-Nov\-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
\&  Sun Nov  6 08:49:37 1994       ; ANSI C\*(Aqs asctime() format
.Ve
.Sp
refer to \s-1RFC2616\s0 for the details (\s-1GMT\s0 is assumed, regardless of the
used timezone).
.ie n .IP "ret: $date_parsed ( number )" 4
.el .IP "ret: \f(CW$date_parsed\fR ( number )" 4
.IX Item "ret: $date_parsed ( number )"
the number of microseconds since 1 Jan 1970 \s-1GMT\s0, or 0 if out of range
or if the date is invalid.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
Remember to divide the return value by 1_000_000 if you need it in
seconds.
.ie n .Sh """parse_rfc"""
.el .Sh "\f(CWparse_rfc\fP"
.IX Subsection "parse_rfc"
Parse a string resembling an \s-1RFC\s0 822 date.  It's meant to be lenient
in its parsing of dates.  Hence, this will parse a wider range of
dates than \f(CW\*(C`parse_http()\*(C'\fR.
.PP
.Vb 1
\&  $date_parsed = parse_rfc($date_string);
.Ve
.ie n .IP "arg1: $date_string ( string )" 4
.el .IP "arg1: \f(CW$date_string\fR ( string )" 4
.IX Item "arg1: $date_string ( string )"
The date string can be in one of the following formats:
.Sp
.Vb 10
\&  Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 822, updated by RFC 1123
\&  Sunday, 06\-Nov\-94 08:49:37 GMT ; RFC 850, obsoleted by RFC 1036
\&  Sun Nov  6 08:49:37 1994       ; ANSI C\*(Aqs asctime() format
\&  Sun, 6 Nov 1994 08:49:37 GMT   ; RFC 822, updated by RFC 1123
\&  Sun, 06 Nov 94 08:49:37 GMT    ; RFC 822
\&  Sun, 6 Nov 94 08:49:37 GMT     ; RFC 822
\&  Sun, 06 Nov 94 08:49 GMT       ; Unknown [drtr\[e-mail]]
\&  Sun, 6 Nov 94 08:49 GMT        ; Unknown [drtr\[e-mail]]
\&  Sun, 06 Nov 94 8:49:37 GMT     ; Unknown [Elm 70.85]
\&  Sun, 6 Nov 94 8:49:37 GMT      ; Unknown [Elm 70.85]
.Ve
.ie n .IP "ret: $date_parsed ( number )" 4
.el .IP "ret: \f(CW$date_parsed\fR ( number )" 4
.IX Item "ret: $date_parsed ( number )"
the number of microseconds since 1 Jan 1970 \s-1GMT\s0, or 0 if out of range
or if the date is invalid.
.IP "since: 2.0.00" 4
.IX Item "since: 2.0.00"
.PP
Remember to divide the return value by 1_000_000 if you need it in
seconds.
.SH "See Also"
.IX Header "See Also"
mod_perl 2.0 documentation.
.SH "Copyright"
.IX Header "Copyright"
mod_perl 2.0 and its core modules are copyrighted under
The Apache Software License, Version 2.0.
.SH "Authors"
.IX Header "Authors"
The mod_perl development team and numerous
contributors.