qapi: allow sharing enum implementation across visitors
Most visitors will use the same code for enum parsing. Move it to
the core.
Signed-off-by: Paolo Bonzini <[email protected]>
diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c
index ddef3ed..a4e088c 100644
--- a/qapi/qapi-visit-core.c
+++ b/qapi/qapi-visit-core.c
@@ -12,6 +12,7 @@
*/
#include "qapi/qapi-visit-core.h"
+#include "qapi/qapi-visit-impl.h"
void visit_start_handle(Visitor *v, void **obj, const char *kind,
const char *name, Error **errp)
@@ -116,3 +117,53 @@
v->type_number(v, obj, name, errp);
}
}
+
+void output_type_enum(Visitor *v, int *obj, const char *strings[],
+ const char *kind, const char *name,
+ Error **errp)
+{
+ int i = 0;
+ int value = *obj;
+ char *enum_str;
+
+ assert(strings);
+ while (strings[i++] != NULL);
+ if (value < 0 || value >= i - 1) {
+ error_set(errp, QERR_INVALID_PARAMETER, name ? name : "null");
+ return;
+ }
+
+ enum_str = (char *)strings[value];
+ visit_type_str(v, &enum_str, name, errp);
+}
+
+void input_type_enum(Visitor *v, int *obj, const char *strings[],
+ const char *kind, const char *name,
+ Error **errp)
+{
+ int64_t value = 0;
+ char *enum_str;
+
+ assert(strings);
+
+ visit_type_str(v, &enum_str, name, errp);
+ if (error_is_set(errp)) {
+ return;
+ }
+
+ while (strings[value] != NULL) {
+ if (strcmp(strings[value], enum_str) == 0) {
+ break;
+ }
+ value++;
+ }
+
+ if (strings[value] == NULL) {
+ error_set(errp, QERR_INVALID_PARAMETER, name ? name : "null");
+ g_free(enum_str);
+ return;
+ }
+
+ g_free(enum_str);
+ *obj = value;
+}
