TSHttpTxnInfoIntGet - TSHttpTxnInfoIntGet API function
TSHttpTxnInfoIntGet() returns arbitrary integer-typed info
about a transaction as defined in TSHttpTxnInfoKey. The API will be
part of a generic API umbrella that can support returning arbitrary info
about a transaction using custom log tags. It works on multiple hooks
depending on the requested info. For example, cache related info may be
available only at or after TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK
hook.
The TSHttpTxnInfoKey currently supports the below
integer-based info about a transaction
- TSHttpTxnInfoKey
- TS_TXN_INFO_CACHE_HIT_RAM
- This info is available at or after
TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK hook. A value of 1
indicates that the response is returned from RAM cache. A value of
0 indicates otherwise.
- TS_TXN_INFO_CACHE_COMPRESSED_IN_RAM
- This info is available at or after
TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK hook. A value of 1 indicates
that the response is returned from RAM cache and is compressed. A value of
0 indicates otherwise.
- TS_TXN_INFO_CACHE_HIT_RWW
- This info is available at or after
TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK hook. A value of 1 indicates
that the response is returned via Read-While-Writer functionality. A value
of 0 indicates otherwise.
- TS_TXN_INFO_CACHE_OPEN_READ_TRIES
- This info is available at or after
TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK hook. The value indicates the
number of cache open read reattempts made by the transaction on cache open
read failure.
- TS_TXN_INFO_CACHE_OPEN_WRITE_TRIES
- This info is available at or after
TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK hook. The value indicates the
number of cache open write reattempts made by the transaction on cache
open write failure.
- TS_TXN_INFO_CACHE_VOLUME
- This info is available at or after
TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK hook. The value indicates the
cache volume ID used for the cache object associated with the
transaction.
The API returns TS_SUCCESS, if the requested info is
supported, TS_ERROR otherwise.
2022, dev@trafficserver.apache.org