diff options
| -rw-r--r-- | include/qemu/option.h | 9 | ||||
| -rw-r--r-- | util/qemu-option.c | 19 |
2 files changed, 28 insertions, 0 deletions
diff --git a/include/qemu/option.h b/include/qemu/option.h index 1f9e3f939d..e786df0cfa 100644 --- a/include/qemu/option.h +++ b/include/qemu/option.h @@ -100,6 +100,15 @@ typedef int (*qemu_opt_loopfunc)(void *opaque, int qemu_opt_foreach(QemuOpts *opts, qemu_opt_loopfunc func, void *opaque, Error **errp); +typedef struct { + QemuOpts *opts; + QemuOpt *opt; + const char *name; +} QemuOptsIter; + +void qemu_opt_iter_init(QemuOptsIter *iter, QemuOpts *opts, const char *name); +const char *qemu_opt_iter_next(QemuOptsIter *iter); + QemuOpts *qemu_opts_find(QemuOptsList *list, const char *id); QemuOpts *qemu_opts_create(QemuOptsList *list, const char *id, int fail_if_exists, Error **errp); diff --git a/util/qemu-option.c b/util/qemu-option.c index 3467dc2397..d611946333 100644 --- a/util/qemu-option.c +++ b/util/qemu-option.c @@ -332,6 +332,25 @@ const char *qemu_opt_get(QemuOpts *opts, const char *name) return opt ? opt->str : NULL; } +void qemu_opt_iter_init(QemuOptsIter *iter, QemuOpts *opts, const char *name) +{ + iter->opts = opts; + iter->opt = QTAILQ_FIRST(&opts->head); + iter->name = name; +} + +const char *qemu_opt_iter_next(QemuOptsIter *iter) +{ + QemuOpt *ret = iter->opt; + if (iter->name) { + while (ret && !g_str_equal(iter->name, ret->name)) { + ret = QTAILQ_NEXT(ret, next); + } + } + iter->opt = ret ? QTAILQ_NEXT(ret, next) : NULL; + return ret ? ret->str : NULL; +} + /* Get a known option (or its default) and remove it from the list * all in one action. Return a malloced string of the option value. * Result must be freed by caller with g_free(). |