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         PING,
  17         UNMAP,
  18 };
  19
  20 /* Do this before doing any tdb stuff.  Return handle, or -1. */
  21 struct agent *prepare_external_agent(void);
  22 void shutdown_agent(struct agent *agent);
  23
  24 enum agent_return {
  25         SUCCESS,
  26         WOULD_HAVE_BLOCKED,
  27         AGENT_DIED,
  28         FAILED, /* For fetch, or NEEDS_RECOVERY */
  29         OTHER_FAILURE,
  30 };
  31
  32 /* Ask the external agent to try to do an operation.
  33  * name == tdb name for OPEN/OPEN_WITH_CLEAR_IF_FIRST,
  34  * record name for FETCH/STORE (store stores name as data too)
  35  */
  36 enum agent_return external_agent_operation(struct agent *handle,
  37                                            enum operation op,
  38                                            const char *name);
  39
  40 /* Mapping enum -> string. */
  41 const char *agent_return_name(enum agent_return ret);
  42 const char *operation_name(enum operation op);
  43
  44 #endif /* TDB_TEST_EXTERNAL_AGENT_H */