Errors pertaining to the failure of various cache operations are indicated by TSCacheError (enumeration). They are as follows:

• TS_CACHE_ERROR_NO_DOC - the key does not match a cached resource

• TS_CACHE_ERROR_DOC_BUSY - e.g, another continuation could be writing to the cache location

• TS_CACHE_ERROR_NOT_READY - the cache is not ready