1Ordering Status and Reads in the gRPC API 2----------------------------------------- 3 4Rules for implementors: 51. Reads and Writes Must not succeed after Status has been delivered. 62. OK Status is only delivered after all buffered messages are read. 73. Reads May continue to succeed after a failing write. 8 However, once a write fails, all subsequent writes Must fail, 9 and similarly, once a read fails, all subsequent reads Must fail. 104. When an error status is known to the library, if the user asks for status, 11 the library Should discard messages received in the library but not delivered 12 to the user and then deliver the status. If the user does not ask for status 13 but continues reading, the library Should deliver buffered messages before 14 delivering status. The library MAY choose to implement the stricter version 15 where errors cause all buffered messages to be dropped, but this is not a 16 requirement. 17