Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Input Visitor |
| 3 | * |
Eric Blake | 08f9541 | 2016-01-29 06:48:59 -0700 | [diff] [blame] | 4 | * Copyright (C) 2012-2016 Red Hat, Inc. |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 5 | * Copyright IBM, Corp. 2011 |
| 6 | * |
| 7 | * Authors: |
| 8 | * Anthony Liguori <aliguori@us.ibm.com> |
| 9 | * |
| 10 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. |
| 11 | * See the COPYING.LIB file in the top-level directory. |
| 12 | * |
| 13 | */ |
| 14 | |
Peter Maydell | cbf2115 | 2016-01-29 17:49:57 +0000 | [diff] [blame] | 15 | #include "qemu/osdep.h" |
Markus Armbruster | da34e65 | 2016-03-14 09:01:28 +0100 | [diff] [blame] | 16 | #include "qapi/error.h" |
Daniel P. Berrange | b3db211 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 17 | #include "qapi/qobject-input-visitor.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 18 | #include "qapi/visitor-impl.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 19 | #include "qemu/queue.h" |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 20 | #include "qemu-common.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 21 | #include "qapi/qmp/types.h" |
| 22 | #include "qapi/qmp/qerror.h" |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 23 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 24 | typedef struct StackObject { |
| 25 | const char *name; /* Name of @obj in its parent, if any */ |
| 26 | QObject *obj; /* QDict or QList being visited */ |
Eric Blake | 1158bb2 | 2016-06-09 10:48:34 -0600 | [diff] [blame] | 27 | void *qapi; /* sanity check that caller uses same pointer */ |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 28 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 29 | GHashTable *h; /* If @obj is QDict: unvisited keys */ |
| 30 | const QListEntry *entry; /* If @obj is QList: unvisited tail */ |
| 31 | unsigned index; /* If @obj is QList: list index of @entry */ |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 32 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 33 | QSLIST_ENTRY(StackObject) node; /* parent */ |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 34 | } StackObject; |
| 35 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 36 | struct QObjectInputVisitor { |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 37 | Visitor visitor; |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 38 | |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 39 | /* Root of visit at visitor creation. */ |
| 40 | QObject *root; |
| 41 | |
| 42 | /* Stack of objects being visited (all entries will be either |
| 43 | * QDict or QList). */ |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 44 | QSLIST_HEAD(, StackObject) stack; |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 45 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 46 | GString *errname; /* Accumulator for full_name() */ |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 47 | }; |
| 48 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 49 | static QObjectInputVisitor *to_qiv(Visitor *v) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 50 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 51 | return container_of(v, QObjectInputVisitor, visitor); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 52 | } |
| 53 | |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 54 | static const char *full_name_nth(QObjectInputVisitor *qiv, const char *name, |
| 55 | int n) |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 56 | { |
| 57 | StackObject *so; |
| 58 | char buf[32]; |
| 59 | |
| 60 | if (qiv->errname) { |
| 61 | g_string_truncate(qiv->errname, 0); |
| 62 | } else { |
| 63 | qiv->errname = g_string_new(""); |
| 64 | } |
| 65 | |
| 66 | QSLIST_FOREACH(so , &qiv->stack, node) { |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 67 | if (n) { |
| 68 | n--; |
| 69 | } else if (qobject_type(so->obj) == QTYPE_QDICT) { |
| 70 | g_string_prepend(qiv->errname, name ?: "<anonymous>"); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 71 | g_string_prepend_c(qiv->errname, '.'); |
| 72 | } else { |
| 73 | snprintf(buf, sizeof(buf), "[%u]", so->index); |
| 74 | g_string_prepend(qiv->errname, buf); |
| 75 | } |
| 76 | name = so->name; |
| 77 | } |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 78 | assert(!n); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 79 | |
| 80 | if (name) { |
| 81 | g_string_prepend(qiv->errname, name); |
| 82 | } else if (qiv->errname->str[0] == '.') { |
| 83 | g_string_erase(qiv->errname, 0, 1); |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 84 | } else if (!qiv->errname->str[0]) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 85 | return "<anonymous>"; |
| 86 | } |
| 87 | |
| 88 | return qiv->errname->str; |
| 89 | } |
| 90 | |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 91 | static const char *full_name(QObjectInputVisitor *qiv, const char *name) |
| 92 | { |
| 93 | return full_name_nth(qiv, name, 0); |
| 94 | } |
| 95 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 96 | static QObject *qobject_input_try_get_object(QObjectInputVisitor *qiv, |
| 97 | const char *name, |
| 98 | bool consume) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 99 | { |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 100 | StackObject *tos; |
| 101 | QObject *qobj; |
Eric Blake | e5826a2 | 2016-04-28 15:45:15 -0600 | [diff] [blame] | 102 | QObject *ret; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 103 | |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 104 | if (QSLIST_EMPTY(&qiv->stack)) { |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 105 | /* Starting at root, name is ignored. */ |
Marc-André Lureau | 5d0cbbc | 2016-09-30 13:59:46 +0400 | [diff] [blame] | 106 | assert(qiv->root); |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 107 | return qiv->root; |
| 108 | } |
| 109 | |
| 110 | /* We are in a container; find the next element. */ |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 111 | tos = QSLIST_FIRST(&qiv->stack); |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 112 | qobj = tos->obj; |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 113 | assert(qobj); |
| 114 | |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 115 | if (qobject_type(qobj) == QTYPE_QDICT) { |
| 116 | assert(name); |
Eric Blake | e5826a2 | 2016-04-28 15:45:15 -0600 | [diff] [blame] | 117 | ret = qdict_get(qobject_to_qdict(qobj), name); |
| 118 | if (tos->h && consume && ret) { |
| 119 | bool removed = g_hash_table_remove(tos->h, name); |
| 120 | assert(removed); |
Paolo Bonzini | 47c6d3e | 2011-12-18 17:05:04 +0100 | [diff] [blame] | 121 | } |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 122 | } else { |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 123 | assert(qobject_type(qobj) == QTYPE_QLIST); |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 124 | assert(!name); |
| 125 | ret = qlist_entry_obj(tos->entry); |
Marc-André Lureau | eac8e79 | 2016-09-30 13:59:47 +0400 | [diff] [blame] | 126 | assert(ret); |
Eric Blake | fcf3cb2 | 2016-04-28 15:45:19 -0600 | [diff] [blame] | 127 | if (consume) { |
| 128 | tos->entry = qlist_next(tos->entry); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 129 | tos->index++; |
Eric Blake | fcf3cb2 | 2016-04-28 15:45:19 -0600 | [diff] [blame] | 130 | } |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 131 | } |
| 132 | |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 133 | return ret; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 134 | } |
| 135 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 136 | static QObject *qobject_input_get_object(QObjectInputVisitor *qiv, |
| 137 | const char *name, |
| 138 | bool consume, Error **errp) |
| 139 | { |
| 140 | QObject *obj = qobject_input_try_get_object(qiv, name, consume); |
| 141 | |
| 142 | if (!obj) { |
| 143 | error_setg(errp, QERR_MISSING_PARAMETER, full_name(qiv, name)); |
| 144 | } |
| 145 | return obj; |
| 146 | } |
| 147 | |
Paolo Bonzini | e38ac96 | 2012-03-22 12:51:10 +0100 | [diff] [blame] | 148 | static void qdict_add_key(const char *key, QObject *obj, void *opaque) |
| 149 | { |
| 150 | GHashTable *h = opaque; |
| 151 | g_hash_table_insert(h, (gpointer) key, NULL); |
| 152 | } |
| 153 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 154 | static const QListEntry *qobject_input_push(QObjectInputVisitor *qiv, |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 155 | const char *name, |
Markus Armbruster | b8874fb | 2017-03-03 13:32:32 +0100 | [diff] [blame] | 156 | QObject *obj, void *qapi) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 157 | { |
Paolo Bonzini | e38ac96 | 2012-03-22 12:51:10 +0100 | [diff] [blame] | 158 | GHashTable *h; |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 159 | StackObject *tos = g_new0(StackObject, 1); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 160 | |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 161 | assert(obj); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 162 | tos->name = name; |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 163 | tos->obj = obj; |
Eric Blake | 1158bb2 | 2016-06-09 10:48:34 -0600 | [diff] [blame] | 164 | tos->qapi = qapi; |
Paolo Bonzini | e38ac96 | 2012-03-22 12:51:10 +0100 | [diff] [blame] | 165 | |
Markus Armbruster | 048abb7 | 2017-03-03 13:32:39 +0100 | [diff] [blame] | 166 | if (qobject_type(obj) == QTYPE_QDICT) { |
Paolo Bonzini | e38ac96 | 2012-03-22 12:51:10 +0100 | [diff] [blame] | 167 | h = g_hash_table_new(g_str_hash, g_str_equal); |
| 168 | qdict_iter(qobject_to_qdict(obj), qdict_add_key, h); |
Eric Blake | b471d01 | 2016-04-28 15:45:12 -0600 | [diff] [blame] | 169 | tos->h = h; |
Markus Armbruster | 048abb7 | 2017-03-03 13:32:39 +0100 | [diff] [blame] | 170 | } else { |
| 171 | assert(qobject_type(obj) == QTYPE_QLIST); |
Eric Blake | fcf3cb2 | 2016-04-28 15:45:19 -0600 | [diff] [blame] | 172 | tos->entry = qlist_first(qobject_to_qlist(obj)); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 173 | tos->index = -1; |
Paolo Bonzini | e38ac96 | 2012-03-22 12:51:10 +0100 | [diff] [blame] | 174 | } |
| 175 | |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 176 | QSLIST_INSERT_HEAD(&qiv->stack, tos, node); |
Eric Blake | d9f62dd | 2016-04-28 15:45:31 -0600 | [diff] [blame] | 177 | return tos->entry; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 178 | } |
| 179 | |
NODA, Kai | 57a33d8 | 2012-04-21 22:41:27 +0900 | [diff] [blame] | 180 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 181 | static void qobject_input_check_struct(Visitor *v, Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 182 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 183 | QObjectInputVisitor *qiv = to_qiv(v); |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 184 | StackObject *tos = QSLIST_FIRST(&qiv->stack); |
Markus Armbruster | 048abb7 | 2017-03-03 13:32:39 +0100 | [diff] [blame] | 185 | GHashTableIter iter; |
| 186 | const char *key; |
Eric Blake | 15c2f66 | 2016-04-28 15:45:27 -0600 | [diff] [blame] | 187 | |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 188 | assert(tos && !tos->entry); |
Eric Blake | f96493b | 2016-02-17 23:48:15 -0700 | [diff] [blame] | 189 | |
Markus Armbruster | 048abb7 | 2017-03-03 13:32:39 +0100 | [diff] [blame] | 190 | g_hash_table_iter_init(&iter, tos->h); |
| 191 | if (g_hash_table_iter_next(&iter, (void **)&key, NULL)) { |
| 192 | error_setg(errp, "Parameter '%s' is unexpected", |
| 193 | full_name(qiv, key)); |
Eric Blake | 15c2f66 | 2016-04-28 15:45:27 -0600 | [diff] [blame] | 194 | } |
| 195 | } |
| 196 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 197 | static void qobject_input_stack_object_free(StackObject *tos) |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 198 | { |
| 199 | if (tos->h) { |
| 200 | g_hash_table_unref(tos->h); |
| 201 | } |
| 202 | |
| 203 | g_free(tos); |
| 204 | } |
| 205 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 206 | static void qobject_input_pop(Visitor *v, void **obj) |
Eric Blake | 15c2f66 | 2016-04-28 15:45:27 -0600 | [diff] [blame] | 207 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 208 | QObjectInputVisitor *qiv = to_qiv(v); |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 209 | StackObject *tos = QSLIST_FIRST(&qiv->stack); |
Eric Blake | 15c2f66 | 2016-04-28 15:45:27 -0600 | [diff] [blame] | 210 | |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 211 | assert(tos && tos->qapi == obj); |
| 212 | QSLIST_REMOVE_HEAD(&qiv->stack, node); |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 213 | qobject_input_stack_object_free(tos); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 214 | } |
| 215 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 216 | static void qobject_input_start_struct(Visitor *v, const char *name, void **obj, |
| 217 | size_t size, Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 218 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 219 | QObjectInputVisitor *qiv = to_qiv(v); |
| 220 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 221 | |
Eric Blake | e58d695 | 2016-04-28 15:45:10 -0600 | [diff] [blame] | 222 | if (obj) { |
| 223 | *obj = NULL; |
| 224 | } |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 225 | if (!qobj) { |
| 226 | return; |
| 227 | } |
| 228 | if (qobject_type(qobj) != QTYPE_QDICT) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 229 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 230 | full_name(qiv, name), "object"); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 231 | return; |
| 232 | } |
| 233 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 234 | qobject_input_push(qiv, name, qobj, obj); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 235 | |
| 236 | if (obj) { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 237 | *obj = g_malloc0(size); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 238 | } |
| 239 | } |
| 240 | |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 241 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 242 | static void qobject_input_start_list(Visitor *v, const char *name, |
| 243 | GenericList **list, size_t size, |
| 244 | Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 245 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 246 | QObjectInputVisitor *qiv = to_qiv(v); |
| 247 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Eric Blake | d9f62dd | 2016-04-28 15:45:31 -0600 | [diff] [blame] | 248 | const QListEntry *entry; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 249 | |
Markus Armbruster | 58561c2 | 2017-03-03 13:32:33 +0100 | [diff] [blame] | 250 | if (list) { |
| 251 | *list = NULL; |
| 252 | } |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 253 | if (!qobj) { |
| 254 | return; |
| 255 | } |
| 256 | if (qobject_type(qobj) != QTYPE_QLIST) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 257 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 258 | full_name(qiv, name), "array"); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 259 | return; |
| 260 | } |
| 261 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 262 | entry = qobject_input_push(qiv, name, qobj, list); |
Markus Armbruster | 58561c2 | 2017-03-03 13:32:33 +0100 | [diff] [blame] | 263 | if (entry && list) { |
| 264 | *list = g_malloc0(size); |
Eric Blake | d9f62dd | 2016-04-28 15:45:31 -0600 | [diff] [blame] | 265 | } |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 266 | } |
| 267 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 268 | static GenericList *qobject_input_next_list(Visitor *v, GenericList *tail, |
| 269 | size_t size) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 270 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 271 | QObjectInputVisitor *qiv = to_qiv(v); |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 272 | StackObject *tos = QSLIST_FIRST(&qiv->stack); |
Paolo Bonzini | 3a86a0f | 2012-03-22 22:38:40 +0100 | [diff] [blame] | 273 | |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 274 | assert(tos && tos->obj && qobject_type(tos->obj) == QTYPE_QLIST); |
| 275 | |
| 276 | if (!tos->entry) { |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 277 | return NULL; |
| 278 | } |
Eric Blake | d9f62dd | 2016-04-28 15:45:31 -0600 | [diff] [blame] | 279 | tail->next = g_malloc0(size); |
| 280 | return tail->next; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 281 | } |
| 282 | |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 283 | static void qobject_input_check_list(Visitor *v, Error **errp) |
| 284 | { |
| 285 | QObjectInputVisitor *qiv = to_qiv(v); |
| 286 | StackObject *tos = QSLIST_FIRST(&qiv->stack); |
| 287 | |
| 288 | assert(tos && tos->obj && qobject_type(tos->obj) == QTYPE_QLIST); |
| 289 | |
| 290 | if (tos->entry) { |
| 291 | error_setg(errp, "Only %u list elements expected in %s", |
| 292 | tos->index + 1, full_name_nth(qiv, NULL, 1)); |
| 293 | } |
| 294 | } |
| 295 | |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 296 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 297 | static void qobject_input_start_alternate(Visitor *v, const char *name, |
| 298 | GenericAlternate **obj, size_t size, |
| 299 | bool promote_int, Error **errp) |
Kevin Wolf | 69dd62d | 2013-07-08 16:14:21 +0200 | [diff] [blame] | 300 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 301 | QObjectInputVisitor *qiv = to_qiv(v); |
| 302 | QObject *qobj = qobject_input_get_object(qiv, name, false, errp); |
Kevin Wolf | 69dd62d | 2013-07-08 16:14:21 +0200 | [diff] [blame] | 303 | |
| 304 | if (!qobj) { |
Eric Blake | dbf1192 | 2016-02-17 23:48:29 -0700 | [diff] [blame] | 305 | *obj = NULL; |
Kevin Wolf | 69dd62d | 2013-07-08 16:14:21 +0200 | [diff] [blame] | 306 | return; |
| 307 | } |
Eric Blake | dbf1192 | 2016-02-17 23:48:29 -0700 | [diff] [blame] | 308 | *obj = g_malloc0(size); |
| 309 | (*obj)->type = qobject_type(qobj); |
| 310 | if (promote_int && (*obj)->type == QTYPE_QINT) { |
| 311 | (*obj)->type = QTYPE_QFLOAT; |
Eric Blake | d00341a | 2015-12-01 22:20:51 -0700 | [diff] [blame] | 312 | } |
Kevin Wolf | 69dd62d | 2013-07-08 16:14:21 +0200 | [diff] [blame] | 313 | } |
| 314 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 315 | static void qobject_input_type_int64(Visitor *v, const char *name, int64_t *obj, |
| 316 | Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 317 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 318 | QObjectInputVisitor *qiv = to_qiv(v); |
| 319 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 320 | QInt *qint; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 321 | |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 322 | if (!qobj) { |
| 323 | return; |
| 324 | } |
| 325 | qint = qobject_to_qint(qobj); |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 326 | if (!qint) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 327 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 328 | full_name(qiv, name), "integer"); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 329 | return; |
| 330 | } |
| 331 | |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 332 | *obj = qint_get_int(qint); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 333 | } |
| 334 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 335 | static void qobject_input_type_uint64(Visitor *v, const char *name, |
| 336 | uint64_t *obj, Error **errp) |
Eric Blake | f755dea | 2016-01-29 06:48:50 -0700 | [diff] [blame] | 337 | { |
| 338 | /* FIXME: qobject_to_qint mishandles values over INT64_MAX */ |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 339 | QObjectInputVisitor *qiv = to_qiv(v); |
| 340 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 341 | QInt *qint; |
Eric Blake | f755dea | 2016-01-29 06:48:50 -0700 | [diff] [blame] | 342 | |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 343 | if (!qobj) { |
| 344 | return; |
| 345 | } |
| 346 | qint = qobject_to_qint(qobj); |
Eric Blake | f755dea | 2016-01-29 06:48:50 -0700 | [diff] [blame] | 347 | if (!qint) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 348 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 349 | full_name(qiv, name), "integer"); |
Eric Blake | f755dea | 2016-01-29 06:48:50 -0700 | [diff] [blame] | 350 | return; |
| 351 | } |
| 352 | |
| 353 | *obj = qint_get_int(qint); |
| 354 | } |
| 355 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 356 | static void qobject_input_type_bool(Visitor *v, const char *name, bool *obj, |
| 357 | Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 358 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 359 | QObjectInputVisitor *qiv = to_qiv(v); |
| 360 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 361 | QBool *qbool; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 362 | |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 363 | if (!qobj) { |
| 364 | return; |
| 365 | } |
| 366 | qbool = qobject_to_qbool(qobj); |
Markus Armbruster | 14b6160 | 2015-10-15 16:15:33 +0200 | [diff] [blame] | 367 | if (!qbool) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 368 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 369 | full_name(qiv, name), "boolean"); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 370 | return; |
| 371 | } |
| 372 | |
Markus Armbruster | 14b6160 | 2015-10-15 16:15:33 +0200 | [diff] [blame] | 373 | *obj = qbool_get_bool(qbool); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 374 | } |
| 375 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 376 | static void qobject_input_type_str(Visitor *v, const char *name, char **obj, |
| 377 | Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 378 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 379 | QObjectInputVisitor *qiv = to_qiv(v); |
| 380 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 381 | QString *qstr; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 382 | |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 383 | *obj = NULL; |
| 384 | if (!qobj) { |
| 385 | return; |
| 386 | } |
| 387 | qstr = qobject_to_qstring(qobj); |
Markus Armbruster | 7f02784 | 2015-10-15 16:15:37 +0200 | [diff] [blame] | 388 | if (!qstr) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 389 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 390 | full_name(qiv, name), "string"); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 391 | return; |
| 392 | } |
| 393 | |
Markus Armbruster | 7f02784 | 2015-10-15 16:15:37 +0200 | [diff] [blame] | 394 | *obj = g_strdup(qstring_get_str(qstr)); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 395 | } |
| 396 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 397 | static void qobject_input_type_number(Visitor *v, const char *name, double *obj, |
| 398 | Error **errp) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 399 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 400 | QObjectInputVisitor *qiv = to_qiv(v); |
| 401 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 402 | QInt *qint; |
| 403 | QFloat *qfloat; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 404 | |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 405 | if (!qobj) { |
| 406 | return; |
| 407 | } |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 408 | qint = qobject_to_qint(qobj); |
| 409 | if (qint) { |
| 410 | *obj = qint_get_int(qobject_to_qint(qobj)); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 411 | return; |
| 412 | } |
| 413 | |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 414 | qfloat = qobject_to_qfloat(qobj); |
| 415 | if (qfloat) { |
Michael Roth | 1ee5187 | 2012-05-11 12:43:24 -0500 | [diff] [blame] | 416 | *obj = qfloat_get_double(qobject_to_qfloat(qobj)); |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 417 | return; |
Michael Roth | 1ee5187 | 2012-05-11 12:43:24 -0500 | [diff] [blame] | 418 | } |
Markus Armbruster | fcf73f6 | 2015-10-15 16:15:35 +0200 | [diff] [blame] | 419 | |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 420 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 421 | full_name(qiv, name), "number"); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 422 | } |
| 423 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 424 | static void qobject_input_type_any(Visitor *v, const char *name, QObject **obj, |
| 425 | Error **errp) |
Markus Armbruster | 28770e0 | 2015-09-16 13:06:24 +0200 | [diff] [blame] | 426 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 427 | QObjectInputVisitor *qiv = to_qiv(v); |
| 428 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Markus Armbruster | 28770e0 | 2015-09-16 13:06:24 +0200 | [diff] [blame] | 429 | |
Marc-André Lureau | 1382d4a | 2016-09-30 13:59:48 +0400 | [diff] [blame] | 430 | *obj = NULL; |
Marc-André Lureau | c489780 | 2016-09-23 00:39:26 +0400 | [diff] [blame] | 431 | if (!qobj) { |
Marc-André Lureau | c489780 | 2016-09-23 00:39:26 +0400 | [diff] [blame] | 432 | return; |
| 433 | } |
| 434 | |
Markus Armbruster | 28770e0 | 2015-09-16 13:06:24 +0200 | [diff] [blame] | 435 | qobject_incref(qobj); |
| 436 | *obj = qobj; |
| 437 | } |
| 438 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 439 | static void qobject_input_type_null(Visitor *v, const char *name, Error **errp) |
Eric Blake | 3bc97fd | 2016-04-28 15:45:22 -0600 | [diff] [blame] | 440 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 441 | QObjectInputVisitor *qiv = to_qiv(v); |
| 442 | QObject *qobj = qobject_input_get_object(qiv, name, true, errp); |
Eric Blake | 3df016f | 2016-04-28 15:45:23 -0600 | [diff] [blame] | 443 | |
Marc-André Lureau | c489780 | 2016-09-23 00:39:26 +0400 | [diff] [blame] | 444 | if (!qobj) { |
Marc-André Lureau | c489780 | 2016-09-23 00:39:26 +0400 | [diff] [blame] | 445 | return; |
| 446 | } |
| 447 | |
Eric Blake | 3df016f | 2016-04-28 15:45:23 -0600 | [diff] [blame] | 448 | if (qobject_type(qobj) != QTYPE_QNULL) { |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 449 | error_setg(errp, QERR_INVALID_PARAMETER_TYPE, |
| 450 | full_name(qiv, name), "null"); |
Eric Blake | 3df016f | 2016-04-28 15:45:23 -0600 | [diff] [blame] | 451 | } |
Eric Blake | 3bc97fd | 2016-04-28 15:45:22 -0600 | [diff] [blame] | 452 | } |
| 453 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 454 | static void qobject_input_optional(Visitor *v, const char *name, bool *present) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 455 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 456 | QObjectInputVisitor *qiv = to_qiv(v); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 457 | QObject *qobj = qobject_input_try_get_object(qiv, name, false); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 458 | |
| 459 | if (!qobj) { |
| 460 | *present = false; |
| 461 | return; |
| 462 | } |
| 463 | |
| 464 | *present = true; |
| 465 | } |
| 466 | |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 467 | static void qobject_input_free(Visitor *v) |
Eric Blake | 2c0ef9f | 2016-06-09 10:48:35 -0600 | [diff] [blame] | 468 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 469 | QObjectInputVisitor *qiv = to_qiv(v); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 470 | |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 471 | while (!QSLIST_EMPTY(&qiv->stack)) { |
| 472 | StackObject *tos = QSLIST_FIRST(&qiv->stack); |
| 473 | |
| 474 | QSLIST_REMOVE_HEAD(&qiv->stack, node); |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 475 | qobject_input_stack_object_free(tos); |
Paolo Bonzini | 3d344c2 | 2016-07-07 17:53:18 +0200 | [diff] [blame] | 476 | } |
Eric Blake | 2c0ef9f | 2016-06-09 10:48:35 -0600 | [diff] [blame] | 477 | |
Eric Blake | b70ce101 | 2016-06-09 10:48:38 -0600 | [diff] [blame] | 478 | qobject_decref(qiv->root); |
Markus Armbruster | a9fc37f | 2017-03-03 13:32:34 +0100 | [diff] [blame] | 479 | if (qiv->errname) { |
| 480 | g_string_free(qiv->errname, TRUE); |
| 481 | } |
Eric Blake | b70ce101 | 2016-06-09 10:48:38 -0600 | [diff] [blame] | 482 | g_free(qiv); |
Eric Blake | 2c0ef9f | 2016-06-09 10:48:35 -0600 | [diff] [blame] | 483 | } |
| 484 | |
Markus Armbruster | 048abb7 | 2017-03-03 13:32:39 +0100 | [diff] [blame] | 485 | Visitor *qobject_input_visitor_new(QObject *obj) |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 486 | { |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 487 | QObjectInputVisitor *v; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 488 | |
Marc-André Lureau | 5d0cbbc | 2016-09-30 13:59:46 +0400 | [diff] [blame] | 489 | assert(obj); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 490 | v = g_malloc0(sizeof(*v)); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 491 | |
Eric Blake | 983f52d | 2016-04-28 15:45:09 -0600 | [diff] [blame] | 492 | v->visitor.type = VISITOR_INPUT; |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 493 | v->visitor.start_struct = qobject_input_start_struct; |
| 494 | v->visitor.check_struct = qobject_input_check_struct; |
| 495 | v->visitor.end_struct = qobject_input_pop; |
| 496 | v->visitor.start_list = qobject_input_start_list; |
| 497 | v->visitor.next_list = qobject_input_next_list; |
Markus Armbruster | a4a1c70 | 2017-03-03 13:32:45 +0100 | [diff] [blame] | 498 | v->visitor.check_list = qobject_input_check_list; |
Daniel P. Berrange | 09e6836 | 2016-09-30 15:45:27 +0100 | [diff] [blame] | 499 | v->visitor.end_list = qobject_input_pop; |
| 500 | v->visitor.start_alternate = qobject_input_start_alternate; |
| 501 | v->visitor.type_int64 = qobject_input_type_int64; |
| 502 | v->visitor.type_uint64 = qobject_input_type_uint64; |
| 503 | v->visitor.type_bool = qobject_input_type_bool; |
| 504 | v->visitor.type_str = qobject_input_type_str; |
| 505 | v->visitor.type_number = qobject_input_type_number; |
| 506 | v->visitor.type_any = qobject_input_type_any; |
| 507 | v->visitor.type_null = qobject_input_type_null; |
| 508 | v->visitor.optional = qobject_input_optional; |
| 509 | v->visitor.free = qobject_input_free; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 510 | |
Eric Blake | ce140b1 | 2016-04-28 15:45:18 -0600 | [diff] [blame] | 511 | v->root = obj; |
Paolo Bonzini | 4faaec6 | 2012-03-22 12:51:09 +0100 | [diff] [blame] | 512 | qobject_incref(obj); |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 513 | |
Eric Blake | b70ce101 | 2016-06-09 10:48:38 -0600 | [diff] [blame] | 514 | return &v->visitor; |
Michael Roth | c40cc0a | 2011-07-19 14:50:33 -0500 | [diff] [blame] | 515 | } |