From patchwork Thu Apr 3 09:54:20 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunyan Liu X-Patchwork-Id: 336563 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 8B0571400B3 for ; Thu, 3 Apr 2014 20:56:22 +1100 (EST) Received: from localhost ([::1]:42983 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVeNg-00077L-Da for incoming@patchwork.ozlabs.org; Thu, 03 Apr 2014 05:56:20 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58742) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVeLD-0002dH-5q for qemu-devel@nongnu.org; Thu, 03 Apr 2014 05:53:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WVeL7-0006iI-2u for qemu-devel@nongnu.org; Thu, 03 Apr 2014 05:53:47 -0400 Received: from victor.provo.novell.com ([137.65.250.26]:50256) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVeL6-0006iB-Qk for qemu-devel@nongnu.org; Thu, 03 Apr 2014 05:53:41 -0400 Received: from linux-cyliu.lab.bej.apac.novell.com (prv-ext-foundry1int.gns.novell.com [137.65.251.240]) by victor.provo.novell.com with ESMTP (NOT encrypted); Thu, 03 Apr 2014 03:53:23 -0600 From: Chunyan Liu To: qemu-devel@nongnu.org Date: Thu, 3 Apr 2014 17:54:20 +0800 Message-Id: <1396518889-21681-3-git-send-email-cyliu@suse.com> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1396518889-21681-1-git-send-email-cyliu@suse.com> References: <1396518889-21681-1-git-send-email-cyliu@suse.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 137.65.250.26 Cc: l@dorileo.org, stefanha@redhat.com Subject: [Qemu-devel] [PATCH v24 02/31] QemuOpts: add def_value_str to QemuOptDesc X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add def_value_str (default value) to QemuOptDesc, to replace function of the default value in QEMUOptionParameter. Improve qemu_opts_get_* functions: if find opt, return opt->str; otherwise, if desc->def_value_str is set, return desc->def_value_str; otherwise, return input defval. Improve qemu_opts_print: if option is set, print opt->str; otherwise, if desc->def_value_str is set, also print it. Reviewed-by: Eric Blake Signed-off-by: Dong Xu Wang Signed-off-by: Chunyan Liu --- include/qemu/option.h | 3 ++- util/qemu-option.c | 56 ++++++++++++++++++++++++++++++++++++++++++--------- 2 files changed, 49 insertions(+), 10 deletions(-) diff --git a/include/qemu/option.h b/include/qemu/option.h index 8c0ac34..c3b0a91 100644 --- a/include/qemu/option.h +++ b/include/qemu/option.h @@ -99,6 +99,7 @@ typedef struct QemuOptDesc { const char *name; enum QemuOptType type; const char *help; + const char *def_value_str; } QemuOptDesc; struct QemuOptsList { @@ -156,7 +157,7 @@ QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict); void qemu_opts_absorb_qdict(QemuOpts *opts, QDict *qdict, Error **errp); typedef int (*qemu_opts_loopfunc)(QemuOpts *opts, void *opaque); -int qemu_opts_print(QemuOpts *opts, void *dummy); +void qemu_opts_print(QemuOpts *opts); int qemu_opts_foreach(QemuOptsList *list, qemu_opts_loopfunc func, void *opaque, int abort_on_failure); diff --git a/util/qemu-option.c b/util/qemu-option.c index e6d10bc..d5e80da 100644 --- a/util/qemu-option.c +++ b/util/qemu-option.c @@ -570,6 +570,13 @@ static QemuOpt *qemu_opt_find(QemuOpts *opts, const char *name) const char *qemu_opt_get(QemuOpts *opts, const char *name) { QemuOpt *opt = qemu_opt_find(opts, name); + + if (!opt) { + const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); + if (desc && desc->def_value_str) { + return desc->def_value_str; + } + } return opt ? opt->str : NULL; } @@ -589,8 +596,13 @@ bool qemu_opt_get_bool(QemuOpts *opts, const char *name, bool defval) { QemuOpt *opt = qemu_opt_find(opts, name); - if (opt == NULL) + if (opt == NULL) { + const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); + if (desc && desc->def_value_str) { + parse_option_bool(name, desc->def_value_str, &defval, &error_abort); + } return defval; + } assert(opt->desc && opt->desc->type == QEMU_OPT_BOOL); return opt->value.boolean; } @@ -599,8 +611,14 @@ uint64_t qemu_opt_get_number(QemuOpts *opts, const char *name, uint64_t defval) { QemuOpt *opt = qemu_opt_find(opts, name); - if (opt == NULL) + if (opt == NULL) { + const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); + if (desc && desc->def_value_str) { + parse_option_number(name, desc->def_value_str, &defval, + &error_abort); + } return defval; + } assert(opt->desc && opt->desc->type == QEMU_OPT_NUMBER); return opt->value.uint; } @@ -609,8 +627,13 @@ uint64_t qemu_opt_get_size(QemuOpts *opts, const char *name, uint64_t defval) { QemuOpt *opt = qemu_opt_find(opts, name); - if (opt == NULL) + if (opt == NULL) { + const QemuOptDesc *desc = find_desc_by_name(opts->list->desc, name); + if (desc && desc->def_value_str) { + parse_option_size(name, desc->def_value_str, &defval, &error_abort); + } return defval; + } assert(opt->desc && opt->desc->type == QEMU_OPT_SIZE); return opt->value.uint; } @@ -895,17 +918,32 @@ void qemu_opts_del(QemuOpts *opts) g_free(opts); } -int qemu_opts_print(QemuOpts *opts, void *dummy) +void qemu_opts_print(QemuOpts *opts) { QemuOpt *opt; + QemuOptDesc *desc = opts->list->desc; - fprintf(stderr, "%s: %s:", opts->list->name, - opts->id ? opts->id : ""); - QTAILQ_FOREACH(opt, &opts->head, next) { - fprintf(stderr, " %s=\"%s\"", opt->name, opt->str); + if (desc[0].name == NULL) { + QTAILQ_FOREACH(opt, &opts->head, next) { + fprintf(stderr, "%s=\"%s\" ", opt->name, opt->str); + } + return; + } + for (; desc && desc->name; desc++) { + const char *value; + QemuOpt *opt = qemu_opt_find(opts, desc->name); + + value = opt ? opt->str : desc->def_value_str; + if (!value) { + continue; + } + if (desc->type == QEMU_OPT_STRING) { + fprintf(stderr, "%s='%s' ", desc->name, value); + } else { + fprintf(stderr, "%s=%s ", desc->name, value); + } } fprintf(stderr, "\n"); - return 0; } static int opts_do_parse(QemuOpts *opts, const char *params,