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QemuOpts: Add qemu_opt_unset()

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2013-07-17 14:40:37 +02:00
parent 74fe54f2a1
commit 0dd6c52663
2 changed files with 15 additions and 0 deletions
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1
include/qemu/option.h
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@ -120,6 +120,7 @@ bool qemu_opt_has_help_opt(QemuOpts *opts);
bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval); bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval);
uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval); uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval);
uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval); uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval);
int qemu_opt_unset(QemuOpts *opts, const char *name);
int qemu_opt_set(QemuOpts *opts, const char *name, const char *value); int qemu_opt_set(QemuOpts *opts, const char *name, const char *value);
void qemu_opt_set_err(QemuOpts *opts, const char *name, const char *value, void qemu_opt_set_err(QemuOpts *opts, const char *name, const char *value,
Error **errp); Error **errp);

14
util/qemu-option.c
View File

@ -593,6 +593,20 @@ static const QemuOptDesc *find_desc_by_name(const QemuOptDesc *desc,
return NULL; return NULL;
} }
int qemu_opt_unset(QemuOpts *opts, const char *name)
{
QemuOpt *opt = qemu_opt_find(opts, name);
assert(opts_accepts_any(opts));
if (opt == NULL) {
return -1;
} else {
qemu_opt_del(opt);
return 0;
}
}
static void opt_set(QemuOpts *opts, const char *name, const char *value, static void opt_set(QemuOpts *opts, const char *name, const char *value,
bool prepend, Error **errp) bool prepend, Error **errp)
{ {