2 * String parsing visitor
4 * Copyright Red Hat, Inc. 2012
6 * Author: Paolo Bonzini <pbonzini@redhat.com>
8 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
9 * See the COPYING.LIB file in the top-level directory.
13 #include "qemu-common.h"
14 #include "qapi/string-input-visitor.h"
15 #include "qapi/visitor-impl.h"
16 #include "qapi/qmp/qerror.h"
17 #include "qemu/option.h"
18 #include "qemu/queue.h"
19 #include "qemu/range.h"
22 struct StringInputVisitor
35 static void free_range(void *range, void *dummy)
40 static void parse_str(StringInputVisitor *siv, Error **errp)
42 char *str = (char *) siv->string;
53 start = strtoll(str, &endptr, 0);
54 if (errno == 0 && endptr > str) {
55 if (*endptr == '\0') {
56 cur = g_malloc0(sizeof(*cur));
59 siv->ranges = g_list_insert_sorted_merged(siv->ranges, cur,
63 } else if (*endptr == '-') {
66 end = strtoll(str, &endptr, 0);
67 if (errno == 0 && endptr > str && start <= end &&
68 (start > INT64_MAX - 65536 ||
69 end < start + 65536)) {
70 if (*endptr == '\0') {
71 cur = g_malloc0(sizeof(*cur));
75 g_list_insert_sorted_merged(siv->ranges,
80 } else if (*endptr == ',') {
82 cur = g_malloc0(sizeof(*cur));
86 g_list_insert_sorted_merged(siv->ranges,
96 } else if (*endptr == ',') {
98 cur = g_malloc0(sizeof(*cur));
100 cur->end = start + 1;
101 siv->ranges = g_list_insert_sorted_merged(siv->ranges,
115 g_list_foreach(siv->ranges, free_range, NULL);
116 g_list_free(siv->ranges);
121 start_list(Visitor *v, const char *name, Error **errp)
123 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
125 parse_str(siv, errp);
127 siv->cur_range = g_list_first(siv->ranges);
128 if (siv->cur_range) {
129 Range *r = siv->cur_range->data;
137 next_list(Visitor *v, GenericList **list, Error **errp)
139 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
143 if (!siv->ranges || !siv->cur_range) {
147 r = siv->cur_range->data;
152 if (siv->cur < r->begin || siv->cur >= r->end) {
153 siv->cur_range = g_list_next(siv->cur_range);
154 if (!siv->cur_range) {
157 r = siv->cur_range->data;
168 link = &(*list)->next;
171 *link = g_malloc0(sizeof **link);
176 end_list(Visitor *v, Error **errp)
178 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
182 static void parse_type_int(Visitor *v, int64_t *obj, const char *name,
185 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
188 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
193 parse_str(siv, errp);
199 if (!siv->cur_range) {
202 siv->cur_range = g_list_first(siv->ranges);
203 if (!siv->cur_range) {
207 r = siv->cur_range->data;
220 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
221 "an int64 value or range");
224 static void parse_type_size(Visitor *v, uint64_t *obj, const char *name,
227 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
232 parse_option_size(name, siv->string, &val, &err);
234 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
239 error_propagate(errp, err);
246 static void parse_type_bool(Visitor *v, bool *obj, const char *name,
249 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
252 if (!strcasecmp(siv->string, "on") ||
253 !strcasecmp(siv->string, "yes") ||
254 !strcasecmp(siv->string, "true")) {
258 if (!strcasecmp(siv->string, "off") ||
259 !strcasecmp(siv->string, "no") ||
260 !strcasecmp(siv->string, "false")) {
266 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
270 static void parse_type_str(Visitor *v, char **obj, const char *name,
273 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
275 *obj = g_strdup(siv->string);
277 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
282 static void parse_type_number(Visitor *v, double *obj, const char *name,
285 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
286 char *endp = (char *) siv->string;
291 val = strtod(siv->string, &endp);
293 if (!siv->string || errno || endp == siv->string || *endp) {
294 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name ? name : "null",
302 static void parse_optional(Visitor *v, bool *present, const char *name,
305 StringInputVisitor *siv = DO_UPCAST(StringInputVisitor, visitor, v);
315 Visitor *string_input_get_visitor(StringInputVisitor *v)
320 void string_input_visitor_cleanup(StringInputVisitor *v)
322 g_list_foreach(v->ranges, free_range, NULL);
323 g_list_free(v->ranges);
327 StringInputVisitor *string_input_visitor_new(const char *str)
329 StringInputVisitor *v;
331 v = g_malloc0(sizeof(*v));
333 v->visitor.type_enum = input_type_enum;
334 v->visitor.type_int = parse_type_int;
335 v->visitor.type_size = parse_type_size;
336 v->visitor.type_bool = parse_type_bool;
337 v->visitor.type_str = parse_type_str;
338 v->visitor.type_number = parse_type_number;
339 v->visitor.start_list = start_list;
340 v->visitor.next_list = next_list;
341 v->visitor.end_list = end_list;
342 v->visitor.optional = parse_optional;