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-rw-r--r--lib/tdb2/test/external-agent.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/tdb2/test/external-agent.h b/lib/tdb2/test/external-agent.h
new file mode 100644
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+++ b/lib/tdb2/test/external-agent.h
@@ -0,0 +1,43 @@
+#ifndef TDB2_TEST_EXTERNAL_AGENT_H
+#define TDB2_TEST_EXTERNAL_AGENT_H
+
+/* For locking tests, we need a different process to try things at
+ * various times. */
+enum operation {
+ OPEN,
+ OPEN_WITH_HOOK,
+ FETCH,
+ STORE,
+ TRANSACTION_START,
+ TRANSACTION_COMMIT,
+ NEEDS_RECOVERY,
+ CHECK,
+ SEND_SIGNAL,
+ CLOSE,
+};
+
+/* Do this before doing any tdb stuff. Return handle, or -1. */
+struct agent *prepare_external_agent(void);
+
+enum agent_return {
+ SUCCESS,
+ WOULD_HAVE_BLOCKED,
+ AGENT_DIED,
+ FAILED, /* For fetch, or NEEDS_RECOVERY */
+ OTHER_FAILURE,
+};
+
+/* Ask the external agent to try to do an operation.
+ * name == tdb name for OPEN/OPEN_WITH_CLEAR_IF_FIRST,
+ * record name for FETCH/STORE (store stores name as data too)
+ */
+enum agent_return external_agent_operation(struct agent *handle,
+ enum operation op,
+ const char *name);
+
+/* Mapping enum -> string. */
+const char *agent_return_name(enum agent_return ret);
+const char *operation_name(enum operation op);
+
+void free_external_agent(struct agent *agent);
+#endif /* TDB2_TEST_EXTERNAL_AGENT_H */