Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-10-07' into staging

QAPI patches for 2016-10-07

# gpg: Signature made Fri 07 Oct 2016 18:55:40 BST
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2016-10-07:
  docs: Belatedly update for move of QMP/* to docs/
  docs: Belatedly update for move of qmp-commands.txt
  qmp: Disable query-cpu-* commands when they're unavailable
  MAINTAINERS: Pass the QObject staff from Luiz to Markus
  MAINTAINERS: Pass the HMP staff from Luiz to David
  qapi: return a 'missing parameter' error
  qapi: assert list entry has a value
  qapi: add assert about root value
  tests/test-qmp-input-strict: Cover missing struct members
  qapi: Fix crash when 'any' or 'null' parameter is missing
  qmp: fix object-add assert() without props

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 59 insertions, 16 deletions

diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
index 64dd392e6f..37a8e1f931 100644
--- a/qapi/qmp-input-visitor.c
+++ b/qapi/qmp-input-visitor.c
@@ -56,7 +56,7 @@ static QmpInputVisitor *to_qiv(Visitor *v)
 
 static QObject *qmp_input_get_object(QmpInputVisitor *qiv,
                                      const char *name,
-                                     bool consume)
+                                     bool consume, Error **errp)
 {
     StackObject *tos;
     QObject *qobj;
@@ -64,6 +64,7 @@ static QObject *qmp_input_get_object(QmpInputVisitor *qiv,
 
     if (QSLIST_EMPTY(&qiv->stack)) {
         /* Starting at root, name is ignored. */
+        assert(qiv->root);
         return qiv->root;
     }
 
@@ -79,10 +80,14 @@ static QObject *qmp_input_get_object(QmpInputVisitor *qiv,
             bool removed = g_hash_table_remove(tos->h, name);
             assert(removed);
         }
+        if (!ret) {
+            error_setg(errp, QERR_MISSING_PARAMETER, name);
+        }
     } else {
         assert(qobject_type(qobj) == QTYPE_QLIST);
         assert(!name);
         ret = qlist_entry_obj(tos->entry);
+        assert(ret);
         if (consume) {
             tos->entry = qlist_next(tos->entry);
         }
@@ -163,13 +168,16 @@ static void qmp_input_start_struct(Visitor *v, const char *name, void **obj,
                                    size_t size, Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, true);
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
     Error *err = NULL;
 
     if (obj) {
         *obj = NULL;
     }
-    if (!qobj || qobject_type(qobj) != QTYPE_QDICT) {
+    if (!qobj) {
+        return;
+    }
+    if (qobject_type(qobj) != QTYPE_QDICT) {
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                    "QDict");
         return;
@@ -191,10 +199,13 @@ static void qmp_input_start_list(Visitor *v, const char *name,
                                  GenericList **list, size_t size, Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, true);
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
     const QListEntry *entry;
 
-    if (!qobj || qobject_type(qobj) != QTYPE_QLIST) {
+    if (!qobj) {
+        return;
+    }
+    if (qobject_type(qobj) != QTYPE_QLIST) {
         if (list) {
             *list = NULL;
         }
@@ -232,11 +243,10 @@ static void qmp_input_start_alternate(Visitor *v, const char *name,
                                       bool promote_int, Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, false);
+    QObject *qobj = qmp_input_get_object(qiv, name, false, errp);
 
     if (!qobj) {
         *obj = NULL;
-        error_setg(errp, QERR_MISSING_PARAMETER, name ? name : "null");
         return;
     }
     *obj = g_malloc0(size);
@@ -250,8 +260,13 @@ static void qmp_input_type_int64(Visitor *v, const char *name, int64_t *obj,
                                  Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QInt *qint = qobject_to_qint(qmp_input_get_object(qiv, name, true));
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
+    QInt *qint;
 
+    if (!qobj) {
+        return;
+    }
+    qint = qobject_to_qint(qobj);
     if (!qint) {
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                    "integer");
@@ -266,8 +281,13 @@ static void qmp_input_type_uint64(Visitor *v, const char *name, uint64_t *obj,
 {
     /* FIXME: qobject_to_qint mishandles values over INT64_MAX */
     QmpInputVisitor *qiv = to_qiv(v);
-    QInt *qint = qobject_to_qint(qmp_input_get_object(qiv, name, true));
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
+    QInt *qint;
 
+    if (!qobj) {
+        return;
+    }
+    qint = qobject_to_qint(qobj);
     if (!qint) {
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                    "integer");
@@ -281,8 +301,13 @@ static void qmp_input_type_bool(Visitor *v, const char *name, bool *obj,
                                 Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QBool *qbool = qobject_to_qbool(qmp_input_get_object(qiv, name, true));
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
+    QBool *qbool;
 
+    if (!qobj) {
+        return;
+    }
+    qbool = qobject_to_qbool(qobj);
     if (!qbool) {
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                    "boolean");
@@ -296,10 +321,15 @@ static void qmp_input_type_str(Visitor *v, const char *name, char **obj,
                                Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QString *qstr = qobject_to_qstring(qmp_input_get_object(qiv, name, true));
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
+    QString *qstr;
 
+    *obj = NULL;
+    if (!qobj) {
+        return;
+    }
+    qstr = qobject_to_qstring(qobj);
     if (!qstr) {
-        *obj = NULL;
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
                    "string");
         return;
@@ -312,10 +342,13 @@ static void qmp_input_type_number(Visitor *v, const char *name, double *obj,
                                   Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, true);
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
     QInt *qint;
     QFloat *qfloat;
 
+    if (!qobj) {
+        return;
+    }
     qint = qobject_to_qint(qobj);
     if (qint) {
         *obj = qint_get_int(qobject_to_qint(qobj));
@@ -336,7 +369,12 @@ static void qmp_input_type_any(Visitor *v, const char *name, QObject **obj,
                                Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, true);
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
+
+    *obj = NULL;
+    if (!qobj) {
+        return;
+    }
 
     qobject_incref(qobj);
     *obj = qobj;
@@ -345,7 +383,11 @@ static void qmp_input_type_any(Visitor *v, const char *name, QObject **obj,
 static void qmp_input_type_null(Visitor *v, const char *name, Error **errp)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, true);
+    QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
+
+    if (!qobj) {
+        return;
+    }
 
     if (qobject_type(qobj) != QTYPE_QNULL) {
         error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
@@ -356,7 +398,7 @@ static void qmp_input_type_null(Visitor *v, const char *name, Error **errp)
 static void qmp_input_optional(Visitor *v, const char *name, bool *present)
 {
     QmpInputVisitor *qiv = to_qiv(v);
-    QObject *qobj = qmp_input_get_object(qiv, name, false);
+    QObject *qobj = qmp_input_get_object(qiv, name, false, NULL);
 
     if (!qobj) {
         *present = false;
@@ -384,6 +426,7 @@ Visitor *qmp_input_visitor_new(QObject *obj, bool strict)
 {
     QmpInputVisitor *v;
 
+    assert(obj);
     v = g_malloc0(sizeof(*v));
 
     v->visitor.type = VISITOR_INPUT;