[jira] Resolved: (TS-258) Add INKHttpTxnCacheLookupStatusSet to sdk documentation

["Diane Smith (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TS-258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Diane Smith resolved TS-258.
----------------------------

    Resolution: Fixed

added info to "HTTP Transaction Functions" section of SDK

> Add INKHttpTxnCacheLookupStatusSet to sdk documentation
> -------------------------------------------------------
>
>                 Key: TS-258
>                 URL: https://issues.apache.org/jira/browse/TS-258
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Documentation
>            Reporter: Miles Libbey
>            Assignee: Diane Smith
>            Priority: Minor
>
> From Raghav:
> INKHttpTxnCacheLookupStatusSet
> Where it should live : HTTP transaction Functions
> What it does : Sets the cache lookup status to whatever is passed in
> Prototype :  
> int     INKHttpTxnCacheLookupStatusSet (INKHttpTxn txnp, int lookup_status);
> Description : 
> Sets the status of the current cache lookup for the ongoing transaction txnp to whatever is specified in the lookup_status variable. Changing the status from INK_CACHE_LOOKUP_MISS is not allowed.
> Use case : Stale while revalidate plugin has to serve stale data from the cache while it makes a request for new data asynchronously. The plugin forces the core to serve stale data by setting the cache lookup status to INK_CACHE_LOOKUP_HIT_FRESH.
> Returns : 
> 0 on error
> 1 on success

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