Enhancement #1221
Document timestamp ecoding more precisely
| Status: | Resolved | Start date: | 10/29/2012 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assignee: | J. Moringen | % Done: | 100% | |
| Category: | Documentation | |||
| Target version: | rsb-0.9 |
Description
The comments in the Notification protocol buffer file do not explain:
- Why are some timestamps signed and some unsigned? (seems to be accidental, should all be unsigned)
- Are all timestamps in mircoseconds? (yes)
- Which reference point in time does the timestamp encoding use? (UNIX epoch)
- What about the timezone? (should be UTC)
The "Specification » Events" section in the manual should be improved as well (does not mention UNIX epoch).
Associated revisions
Added details regarding timestamps in specification-event.rst
refs #1221
- specification-event.rst: reorganized sections slightly; extended
description of timestamps; added figure explaining
framework-maintained timestamps
Improved descriptions of timestamps in rsb/protocol/{Notification,EventMetaData}.proto
fixes #1221
- rsb/protocol/Notification.proto: extended documentation strings;
added link to manual - rsb/protocol/EventMetaData.proto: likewise
History
#1 Updated by J. Moringen over 11 years ago
- Description updated (diff)
#2 Updated by J. Wienke over 11 years ago
no idea how we got signed types, too. +1 for utc. we also need to check the client apis for the way they assign the default value.
#3 Updated by I. Lütkebohle over 11 years ago
Note that Java doesn't have unsigned types, and no type larger than 64bit. Hence, the usual type for storing time values has been a signed 64bit integer containing milliseconds. This might explain why the original usage has been a signed 64bit long.
#4 Updated by J. Moringen over 11 years ago
- Status changed from New to In Progress
- Assignee set to J. Moringen
- % Done changed from 0 to 50
#5 Updated by J. Moringen over 11 years ago
- Status changed from In Progress to Resolved
- % Done changed from 50 to 100
Applied in changeset rsb-protocol|commit:a561fd673ed0ac765449adeb4553d634652cbce5.