lib/tdb/test/external-agent.h

   1 #ifndef TDB_TEST_EXTERNAL_AGENT_H
   2 #define TDB_TEST_EXTERNAL_AGENT_H
   3
   4 /* For locking tests, we need a different process to try things at
   5  * various times. */
   6 enum operation {
   7         OPEN,
   8         OPEN_WITH_CLEAR_IF_FIRST,
   9         TRANSACTION_START,
  10         FETCH,
  11         STORE,
  12         TRANSACTION_COMMIT,
  13         CHECK,
  14         NEEDS_RECOVERY,
  15         CLOSE,
  16 };
  17
  18 /* Do this before doing any tdb stuff.  Return handle, or -1. */
  19 struct agent *prepare_external_agent(void);
  20
  21 enum agent_return {
  22         SUCCESS,
  23         WOULD_HAVE_BLOCKED,
  24         AGENT_DIED,
  25         FAILED, /* For fetch, or NEEDS_RECOVERY */
  26         OTHER_FAILURE,
  27 };
  28
  29 /* Ask the external agent to try to do an operation.
  30  * name == tdb name for OPEN/OPEN_WITH_CLEAR_IF_FIRST,
  31  * record name for FETCH/STORE (store stores name as data too)
  32  */
  33 enum agent_return external_agent_operation(struct agent *handle,
  34                                            enum operation op,
  35                                            const char *name);
  36
  37 /* Mapping enum -> string. */
  38 const char *agent_return_name(enum agent_return ret);
  39 const char *operation_name(enum operation op);
  40
  41 #endif /* TDB_TEST_EXTERNAL_AGENT_H */