Expose the method-listing call as host.list_methods.

Signed-off-by: Ewan Mellor <ewan@xensource.com>

3 files changed, 62 insertions, 0 deletions

diff --git a/tools/libxen/include/xen_host.h b/tools/libxen/include/xen_host.h
index f9919ad309..1fbe014325 100644
--- a/tools/libxen/include/xen_host.h
+++ b/tools/libxen/include/xen_host.h
@@ -436,6 +436,13 @@ xen_host_dmesg(xen_session *session, char **result, xen_host host);
 
 
 /**
+ * List all supported methods.
+ */
+extern bool
+xen_host_list_methods(xen_session *session, struct xen_string_set **result);
+
+
+/**
  * Return a list of all the hosts known to the system.
  */
 extern bool
diff --git a/tools/libxen/src/xen_host.c b/tools/libxen/src/xen_host.c
index 64badac031..d46f061c30 100644
--- a/tools/libxen/src/xen_host.c
+++ b/tools/libxen/src/xen_host.c
@@ -740,6 +740,18 @@ xen_host_dmesg(xen_session *session, char **result, xen_host host)
 
 
 bool
+xen_host_list_methods(xen_session *session, struct xen_string_set **result)
+{
+
+    abstract_type result_type = abstract_type_string_set;
+
+    *result = NULL;
+    xen_call_(session, "host.list_methods", NULL, 0, &result_type, result);
+    return session->ok;
+}
+
+
+bool
 xen_host_get_all(xen_session *session, struct xen_host_set **result)
 {
 
diff --git a/tools/libxen/test/test_bindings.c b/tools/libxen/test/test_bindings.c
index 68f7985f9d..6da442d539 100644
--- a/tools/libxen/test/test_bindings.c
+++ b/tools/libxen/test/test_bindings.c
@@ -64,6 +64,7 @@ typedef struct
 
 static xen_vm create_new_vm(xen_session *session, bool hvm);
 static void print_session_info(xen_session *session);
+static void print_methods(xen_session *session);
 static void print_vm_power_state(xen_session *session, xen_vm vm);
 static void print_vm_metrics(xen_session *session, xen_vm vm);
 
@@ -166,6 +167,14 @@ int main(int argc, char **argv)
         return 1;
     }
 
+    print_methods(session);
+    if (!session->ok)
+    {
+        /* Error has been logged, just clean up. */
+        CLEANUP;
+        return 1;
+    }
+
     xen_vm vm;
     if (!xen_vm_get_by_uuid(session, &vm,
                             "00000000-0000-0000-0000-000000000000"))
@@ -644,6 +653,40 @@ static void print_session_info(xen_session *session)
 }
 
 
+static int pstrcmp(const void *p1, const void *p2)
+{
+    return strcmp(*(char **)p1, *(char **)p2);
+}
+
+
+/**
+ * Print the list of supported methods.
+ */
+static void print_methods(xen_session *session)
+{
+    xen_string_set *methods;
+
+    if (!xen_host_list_methods(session, &methods))
+    {
+        print_error(session);
+        goto done;
+    }
+
+    printf("%zd.\n", methods->size);
+    qsort(methods->contents, methods->size, sizeof(char *), pstrcmp);
+
+    printf("Supported methods:\n");
+    for (size_t i = 0; i < methods->size; i++)
+    {
+        printf("  %s\n", methods->contents[i]);
+    }
+    fflush(stdout);
+
+done:
+    xen_string_set_free(methods);
+}
+
+
 /**
  * Print the metrics for the given VM.
  */