mongoc_client_session_with_transaction_cb_t¶

Synopsis¶

typedef bool (*mongoc_client_session_with_transaction_cb_t) (
   mongoc_client_session_t *session,
   void *ctx,
   bson_t **reply,
   bson_error_t *error);

Provide this callback to mongoc_client_session_with_transaction(). The callback should run a sequence of operations meant to be contained within a transaction. The callback should not attempt to start or commit transactions.

Parameters¶

session: A mongoc_client_session_t.
ctx: A void* set to the the user-provided ctx passed to mongoc_client_session_with_transaction().
reply: An optional location for a bson_t or NULL. The callback should set this if it runs any operations against the server and receives replies.
error: A bson_error_t. The callback should set this if it receives any errors while running operations against the server.

Return¶

Returns true for success and false on failure. If cb returns false then it should also set error.