Changeset 1323 for draft-ietf-httpbis/latest/p6-cache.xml
- Timestamp:
- 01/07/11 16:56:52 (11 years ago)
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draft-ietf-httpbis/latest/p6-cache.xml
r1321 r1323 441 441 </artwork></figure> 442 442 </section> 443 444 </section> 443 </section> 444 445 <section title="Delta Seconds" anchor="delta-seconds"> 446 <t> 447 The delta-seconds rule specifies a non-negative integer, representing time 448 in seconds. 449 </t> 450 <figure><artwork type="abnf2616"><iref item="Grammar" primary="true" subitem="delta-seconds" /> 451 <x:ref>delta-seconds</x:ref> = 1*<x:ref>DIGIT</x:ref> 452 </artwork></figure> 453 <t> 454 If an implementation receives a delta-seconds value larger than the largest 455 positive integer it can represent, or if any of its subsequent calculations 456 overflows, it &MUST; consider the value to be 2147483648 (2<x:sup>31</x:sup>). 457 Recipients parsing a delta-seconds value &SHOULD; use an arithmetic type of 458 at least 31 bits of range, and senders &MUST-NOT; send delta-seconds with a 459 value greater than 2147483648. 460 </t> 461 </section> 462 445 463 </section> 446 464 … … 1056 1074 <x:ref>Age</x:ref> = <x:ref>delta-seconds</x:ref> 1057 1075 </artwork></figure> 1058 <t anchor="rule.delta-seconds"> 1059 <x:anchor-alias value="delta-seconds" /> 1060 Age field-values are non-negative integers, representing time in seconds. 1061 </t> 1062 <figure><artwork type="abnf2616"><iref item="Grammar" primary="true" subitem="delta-seconds" /> 1063 <x:ref>delta-seconds</x:ref> = 1*<x:ref>DIGIT</x:ref> 1064 </artwork></figure> 1065 <t> 1066 If a cache receives a value larger than the largest positive integer it can 1067 represent, or if any of its age calculations overflows, it &MUST; transmit 1068 an Age header field with a field-value of 2147483648 (2<x:sup>31</x:sup>). 1069 Recipients parsing the Age header field-value &SHOULD; use an arithmetic type of 1070 at least 31 bits of range. 1076 <t> 1077 Age field-values are non-negative integers, representing time in seconds 1078 (see <xref target="delta-seconds"/>). 1071 1079 </t> 1072 1080 <t> … … 2717 2725 </t> 2718 2726 <t> 2727 <eref target="http://tools.ietf.org/wg/httpbis/trac/ticket/282"/>: 2728 "Recommend minimum sizes for protocol elements" 2729 </t> 2730 <t> 2719 2731 <eref target="http://tools.ietf.org/wg/httpbis/trac/ticket/289"/>: 2720 2732 "Proxies don't 'understand' methods"
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