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authorDaniel P. Berrange <berrange@redhat.com>2016-09-30 15:45:27 +0100
committerMarkus Armbruster <armbru@redhat.com>2016-10-25 16:25:48 +0200
commitb3db211f3c80bb996a704d665fe275619f728bd4 (patch)
treee34f0cc6f45319406df854423720c90ec8278324 /qapi/qmp-input-visitor.c
parentebfd93b6803acef1a799ef6c755500087e37496e (diff)
qapi: rename *qmp-*-visitor* to *qobject-*-visitor*
The QMP visitors have no direct dependency on QMP. It is valid to use them anywhere that one has a QObject. Rename them to better reflect their functionality as a generic QObject to QAPI converter. This is the first of three parts: rename the files. The next two parts will rename C identifiers. The split is necessary to make git rename detection work. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Split into file and identifier rename, two comments touched up] Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'qapi/qmp-input-visitor.c')
-rw-r--r--qapi/qmp-input-visitor.c455
1 files changed, 0 insertions, 455 deletions
diff --git a/qapi/qmp-input-visitor.c b/qapi/qmp-input-visitor.c
deleted file mode 100644
index 37a8e1f931..0000000000
--- a/qapi/qmp-input-visitor.c
+++ /dev/null
@@ -1,455 +0,0 @@
-/*
- * Input Visitor
- *
- * Copyright (C) 2012-2016 Red Hat, Inc.
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- * Anthony Liguori <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
- * See the COPYING.LIB file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qapi/qmp-input-visitor.h"
-#include "qapi/visitor-impl.h"
-#include "qemu/queue.h"
-#include "qemu-common.h"
-#include "qapi/qmp/types.h"
-#include "qapi/qmp/qerror.h"
-
-#define QIV_STACK_SIZE 1024
-
-typedef struct StackObject
-{
- QObject *obj; /* Object being visited */
- void *qapi; /* sanity check that caller uses same pointer */
-
- GHashTable *h; /* If obj is dict: unvisited keys */
- const QListEntry *entry; /* If obj is list: unvisited tail */
-
- QSLIST_ENTRY(StackObject) node;
-} StackObject;
-
-struct QmpInputVisitor
-{
- Visitor visitor;
-
- /* Root of visit at visitor creation. */
- QObject *root;
-
- /* Stack of objects being visited (all entries will be either
- * QDict or QList). */
- QSLIST_HEAD(, StackObject) stack;
-
- /* True to reject parse in visit_end_struct() if unvisited keys remain. */
- bool strict;
-};
-
-static QmpInputVisitor *to_qiv(Visitor *v)
-{
- return container_of(v, QmpInputVisitor, visitor);
-}
-
-static QObject *qmp_input_get_object(QmpInputVisitor *qiv,
- const char *name,
- bool consume, Error **errp)
-{
- StackObject *tos;
- QObject *qobj;
- QObject *ret;
-
- if (QSLIST_EMPTY(&qiv->stack)) {
- /* Starting at root, name is ignored. */
- assert(qiv->root);
- return qiv->root;
- }
-
- /* We are in a container; find the next element. */
- tos = QSLIST_FIRST(&qiv->stack);
- qobj = tos->obj;
- assert(qobj);
-
- if (qobject_type(qobj) == QTYPE_QDICT) {
- assert(name);
- ret = qdict_get(qobject_to_qdict(qobj), name);
- if (tos->h && consume && ret) {
- 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);
- }
- }
-
- return ret;
-}
-
-static void qdict_add_key(const char *key, QObject *obj, void *opaque)
-{
- GHashTable *h = opaque;
- g_hash_table_insert(h, (gpointer) key, NULL);
-}
-
-static const QListEntry *qmp_input_push(QmpInputVisitor *qiv, QObject *obj,
- void *qapi, Error **errp)
-{
- GHashTable *h;
- StackObject *tos = g_new0(StackObject, 1);
-
- assert(obj);
- tos->obj = obj;
- tos->qapi = qapi;
-
- if (qiv->strict && qobject_type(obj) == QTYPE_QDICT) {
- h = g_hash_table_new(g_str_hash, g_str_equal);
- qdict_iter(qobject_to_qdict(obj), qdict_add_key, h);
- tos->h = h;
- } else if (qobject_type(obj) == QTYPE_QLIST) {
- tos->entry = qlist_first(qobject_to_qlist(obj));
- }
-
- QSLIST_INSERT_HEAD(&qiv->stack, tos, node);
- return tos->entry;
-}
-
-
-static void qmp_input_check_struct(Visitor *v, Error **errp)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- StackObject *tos = QSLIST_FIRST(&qiv->stack);
-
- assert(tos && !tos->entry);
- if (qiv->strict) {
- GHashTable *const top_ht = tos->h;
- if (top_ht) {
- GHashTableIter iter;
- const char *key;
-
- g_hash_table_iter_init(&iter, top_ht);
- if (g_hash_table_iter_next(&iter, (void **)&key, NULL)) {
- error_setg(errp, QERR_QMP_EXTRA_MEMBER, key);
- }
- }
- }
-}
-
-static void qmp_input_stack_object_free(StackObject *tos)
-{
- if (tos->h) {
- g_hash_table_unref(tos->h);
- }
-
- g_free(tos);
-}
-
-static void qmp_input_pop(Visitor *v, void **obj)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- StackObject *tos = QSLIST_FIRST(&qiv->stack);
-
- assert(tos && tos->qapi == obj);
- QSLIST_REMOVE_HEAD(&qiv->stack, node);
- qmp_input_stack_object_free(tos);
-}
-
-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, errp);
- Error *err = NULL;
-
- if (obj) {
- *obj = NULL;
- }
- if (!qobj) {
- return;
- }
- if (qobject_type(qobj) != QTYPE_QDICT) {
- error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
- "QDict");
- return;
- }
-
- qmp_input_push(qiv, qobj, obj, &err);
- if (err) {
- error_propagate(errp, err);
- return;
- }
-
- if (obj) {
- *obj = g_malloc0(size);
- }
-}
-
-
-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, errp);
- const QListEntry *entry;
-
- if (!qobj) {
- return;
- }
- if (qobject_type(qobj) != QTYPE_QLIST) {
- if (list) {
- *list = NULL;
- }
- error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
- "list");
- return;
- }
-
- entry = qmp_input_push(qiv, qobj, list, errp);
- if (list) {
- if (entry) {
- *list = g_malloc0(size);
- } else {
- *list = NULL;
- }
- }
-}
-
-static GenericList *qmp_input_next_list(Visitor *v, GenericList *tail,
- size_t size)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- StackObject *so = QSLIST_FIRST(&qiv->stack);
-
- if (!so->entry) {
- return NULL;
- }
- tail->next = g_malloc0(size);
- return tail->next;
-}
-
-
-static void qmp_input_start_alternate(Visitor *v, const char *name,
- GenericAlternate **obj, size_t size,
- bool promote_int, Error **errp)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- QObject *qobj = qmp_input_get_object(qiv, name, false, errp);
-
- if (!qobj) {
- *obj = NULL;
- return;
- }
- *obj = g_malloc0(size);
- (*obj)->type = qobject_type(qobj);
- if (promote_int && (*obj)->type == QTYPE_QINT) {
- (*obj)->type = QTYPE_QFLOAT;
- }
-}
-
-static void qmp_input_type_int64(Visitor *v, const char *name, int64_t *obj,
- Error **errp)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- 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");
- return;
- }
-
- *obj = qint_get_int(qint);
-}
-
-static void qmp_input_type_uint64(Visitor *v, const char *name, uint64_t *obj,
- Error **errp)
-{
- /* FIXME: qobject_to_qint mishandles values over INT64_MAX */
- QmpInputVisitor *qiv = to_qiv(v);
- 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");
- return;
- }
-
- *obj = qint_get_int(qint);
-}
-
-static void qmp_input_type_bool(Visitor *v, const char *name, bool *obj,
- Error **errp)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- 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");
- return;
- }
-
- *obj = qbool_get_bool(qbool);
-}
-
-static void qmp_input_type_str(Visitor *v, const char *name, char **obj,
- Error **errp)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- QObject *qobj = qmp_input_get_object(qiv, name, true, errp);
- QString *qstr;
-
- *obj = NULL;
- if (!qobj) {
- return;
- }
- qstr = qobject_to_qstring(qobj);
- if (!qstr) {
- error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
- "string");
- return;
- }
-
- *obj = g_strdup(qstring_get_str(qstr));
-}
-
-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, errp);
- QInt *qint;
- QFloat *qfloat;
-
- if (!qobj) {
- return;
- }
- qint = qobject_to_qint(qobj);
- if (qint) {
- *obj = qint_get_int(qobject_to_qint(qobj));
- return;
- }
-
- qfloat = qobject_to_qfloat(qobj);
- if (qfloat) {
- *obj = qfloat_get_double(qobject_to_qfloat(qobj));
- return;
- }
-
- error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
- "number");
-}
-
-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, errp);
-
- *obj = NULL;
- if (!qobj) {
- return;
- }
-
- qobject_incref(qobj);
- *obj = qobj;
-}
-
-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, errp);
-
- if (!qobj) {
- return;
- }
-
- if (qobject_type(qobj) != QTYPE_QNULL) {
- error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
- "null");
- }
-}
-
-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, NULL);
-
- if (!qobj) {
- *present = false;
- return;
- }
-
- *present = true;
-}
-
-static void qmp_input_free(Visitor *v)
-{
- QmpInputVisitor *qiv = to_qiv(v);
- while (!QSLIST_EMPTY(&qiv->stack)) {
- StackObject *tos = QSLIST_FIRST(&qiv->stack);
-
- QSLIST_REMOVE_HEAD(&qiv->stack, node);
- qmp_input_stack_object_free(tos);
- }
-
- qobject_decref(qiv->root);
- g_free(qiv);
-}
-
-Visitor *qmp_input_visitor_new(QObject *obj, bool strict)
-{
- QmpInputVisitor *v;
-
- assert(obj);
- v = g_malloc0(sizeof(*v));
-
- v->visitor.type = VISITOR_INPUT;
- v->visitor.start_struct = qmp_input_start_struct;
- v->visitor.check_struct = qmp_input_check_struct;
- v->visitor.end_struct = qmp_input_pop;
- v->visitor.start_list = qmp_input_start_list;
- v->visitor.next_list = qmp_input_next_list;
- v->visitor.end_list = qmp_input_pop;
- v->visitor.start_alternate = qmp_input_start_alternate;
- v->visitor.type_int64 = qmp_input_type_int64;
- v->visitor.type_uint64 = qmp_input_type_uint64;
- v->visitor.type_bool = qmp_input_type_bool;
- v->visitor.type_str = qmp_input_type_str;
- v->visitor.type_number = qmp_input_type_number;
- v->visitor.type_any = qmp_input_type_any;
- v->visitor.type_null = qmp_input_type_null;
- v->visitor.optional = qmp_input_optional;
- v->visitor.free = qmp_input_free;
- v->strict = strict;
-
- v->root = obj;
- qobject_incref(obj);
-
- return &v->visitor;
-}