X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftdb2%2Ftest%2Fexternal-agent.h;fp=ccan%2Ftdb2%2Ftest%2Fexternal-agent.h;h=6d5c5306251a188dbdd13fefe51bbaafaf21397c;hb=0455668028cfe8f0417037975bc3d7dd742974db;hp=0000000000000000000000000000000000000000;hpb=cbe5094e85d08d19393c1b66abd59aecce7c8408;p=ccan

diff --git a/ccan/tdb2/test/external-agent.h b/ccan/tdb2/test/external-agent.h
new file mode 100644
index 00000000..6d5c5306
--- /dev/null
+++ b/ccan/tdb2/test/external-agent.h
@@ -0,0 +1,42 @@
+#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,
+	FETCH,
+	STORE,
+#if 0
+	TRANSACTION_START,
+	TRANSACTION_COMMIT,
+	NEEDS_RECOVERY,
+#endif
+	CHECK,
+	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);
+
+#endif /* TDB2_TEST_EXTERNAL_AGENT_H */