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.