From 01e7f18869c9ee4c84793f4a39ec1f5f4128a0aa Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Wed, 10 Feb 2010 20:15:29 +0100 Subject: qemu-option: Functions to convert to/from QDict The functions are somewhat restricted. Good enough for the job at hand. We'll extend them when we need more. --- qemu-option.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) (limited to 'qemu-option.c') diff --git a/qemu-option.c b/qemu-option.c index ab488e4..24bb19b 100644 --- a/qemu-option.c +++ b/qemu-option.c @@ -28,6 +28,7 @@ #include "qemu-common.h" #include "qemu-error.h" +#include "qemu-objects.h" #include "qemu-option.h" /* @@ -777,6 +778,84 @@ QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, const char *fi return opts; } +static void qemu_opts_from_qdict_1(const char *key, QObject *obj, void *opaque) +{ + char buf[32]; + const char *value; + int n; + + if (!strcmp(key, "id")) { + return; + } + + switch (qobject_type(obj)) { + case QTYPE_QSTRING: + value = qstring_get_str(qobject_to_qstring(obj)); + break; + case QTYPE_QINT: + n = snprintf(buf, sizeof(buf), "%" PRId64, + qint_get_int(qobject_to_qint(obj))); + assert(n < sizeof(buf)); + value = buf; + break; + case QTYPE_QFLOAT: + n = snprintf(buf, sizeof(buf), "%.17g", + qfloat_get_double(qobject_to_qfloat(obj))); + assert(n < sizeof(buf)); + value = buf; + break; + case QTYPE_QBOOL: + strcpy(buf, qbool_get_int(qobject_to_qbool(obj)) ? "on" : "off"); + value = buf; + break; + default: + return; + } + qemu_opt_set(opaque, key, value); +} + +/* + * Create QemuOpts from a QDict. + * Use value of key "id" as ID if it exists and is a QString. + * Only QStrings, QInts, QFloats and QBools are copied. Entries with + * other types are silently ignored. + */ +QemuOpts *qemu_opts_from_qdict(QemuOptsList *list, const QDict *qdict) +{ + QemuOpts *opts; + + opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1); + if (opts == NULL) + return NULL; + + qdict_iter(qdict, qemu_opts_from_qdict_1, opts); + return opts; +} + +/* + * Convert from QemuOpts to QDict. + * The QDict values are of type QString. + * TODO We'll want to use types appropriate for opt->desc->type, but + * this is enough for now. + */ +QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict) +{ + QemuOpt *opt; + QObject *val; + + if (!qdict) { + qdict = qdict_new(); + } + if (opts->id) { + qdict_put(qdict, "id", qstring_from_str(opts->id)); + } + QTAILQ_FOREACH(opt, &opts->head, next) { + val = QOBJECT(qstring_from_str(opt->str)); + qdict_put_obj(qdict, opt->name, val); + } + return qdict; +} + /* Validate parsed opts against descriptions where no * descriptions were provided in the QemuOptsList. */ -- cgit v1.1