OpenSimulator Internals/HyperGrid Services
OpenSimulator Internals/HyperGrid Services
[edit]Overview
[edit]HyperGrid services override normal services (asset, inventory, etc.) with HyperGrid-specific functionality. They handle cross-grid travel, trust verification, and asset transfer between grids.
The existing opensimulator.org wiki documentation for HyperGrid internals is outdated. This page will be rebuilt from code review.
Known Components
[edit]| Component | Notes |
|---|---|
| UserAgentService | Manages the user agent when traveling via HyperGrid. Handles trust verification between grids. |
| hg_traveling_data | Database table tracking active HyperGrid sessions. See hg_traveling_data table. |
| HyperGrid asset transfer | When an object is rezzed on a foreign grid, assets are copied to that grid's asset table -- same UUID, separate copy, no link between them, no cleanup on either end. |
| Suitcase folder | Special inventory folder -- the only part of inventory accessible on foreign grids. Configurable -- operators can disable, exposing entire inventory to foreign grids. |
HyperGrid User IDs
[edit]HyperGrid users have URI-based IDs rather than plain UUIDs. This affects several database fields which use VARCHAR(255) instead of CHAR(36) to accommodate them. Affected tables: Presence, GridUser, Friends, os_groups_membership, os_groups_rolemembership, os_groups_invites, os_groups_notices, os_groups_principals.
Status
[edit]Documentation to be rebuilt from code review. To be discussed with developer community.