From nobody Wed Nov 5 02:51:22 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1500645474942498.37160713247465; Fri, 21 Jul 2017 06:57:54 -0700 (PDT) Received: from localhost ([::1]:43351 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dYYRE-0002tz-H1 for importer@patchew.org; Fri, 21 Jul 2017 09:57:52 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48317) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dYYN2-0007fv-TJ for qemu-devel@nongnu.org; Fri, 21 Jul 2017 09:53:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dYYMz-00044q-UI for qemu-devel@nongnu.org; Fri, 21 Jul 2017 09:53:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37124) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dYYMz-000448-LA for qemu-devel@nongnu.org; Fri, 21 Jul 2017 09:53:29 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 766E1A0CD8 for ; Fri, 21 Jul 2017 13:53:28 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-60.ams2.redhat.com [10.36.116.60]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 19DA08BE20; Fri, 21 Jul 2017 13:53:28 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 81D701138648; Fri, 21 Jul 2017 15:53:26 +0200 (CEST) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 766E1A0CD8 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=armbru@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 766E1A0CD8 From: Markus Armbruster To: qemu-devel@nongnu.org Date: Fri, 21 Jul 2017 15:53:19 +0200 Message-Id: <1500645206-13559-3-git-send-email-armbru@redhat.com> In-Reply-To: <1500645206-13559-1-git-send-email-armbru@redhat.com> References: <1500645206-13559-1-git-send-email-armbru@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Fri, 21 Jul 2017 13:53:28 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 2/9] qtest: Document calling conventions X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Eric Blake We have two flavors of vararg usage in qtest; make it clear that qmp() has different semantics than hmp(), and let the compiler enforce that hmp() is used correctly. However, qmp() (and friends) only accept a subset of printf flags look-alikes (namely, those that our JSON parser understands), and what is worse, qmp("true") (the JSON keyword 'true') is different from qmp("%s", "true") (the JSON string '"true"'), so marking those as printf-like would produce more harm from bogus warnings than it helps (we may have made a mistake in previously marking qobject_from_jsonf(), but this patch is not addressing that). Signed-off-by: Eric Blake Message-Id: <20170720214008.28494-5-eblake@redhat.com> Signed-off-by: Markus Armbruster Reviewed-by: Stefan Hajnoczi --- tests/libqtest.h | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/tests/libqtest.h b/tests/libqtest.h index 38bc1e9..ae57282 100644 --- a/tests/libqtest.h +++ b/tests/libqtest.h @@ -50,7 +50,8 @@ void qtest_quit(QTestState *s); /** * qtest_qmp_discard_response: * @s: #QTestState instance to operate on. - * @fmt...: QMP message to send to qemu + * @fmt...: QMP message to send to qemu; formats arguments through + * json-lexer.c (only understands '%((l|ll|I64)?d|[ipsf])'). * * Sends a QMP message to QEMU and consumes the response. */ @@ -59,7 +60,8 @@ void qtest_qmp_discard_response(QTestState *s, const char= *fmt, ...); /** * qtest_qmp: * @s: #QTestState instance to operate on. - * @fmt...: QMP message to send to qemu + * @fmt...: QMP message to send to qemu; formats arguments through + * json-lexer.c (only understands '%((l|ll|I64)?d|[ipsf])'). * * Sends a QMP message to QEMU and returns the response. */ @@ -68,7 +70,8 @@ QDict *qtest_qmp(QTestState *s, const char *fmt, ...); /** * qtest_async_qmp: * @s: #QTestState instance to operate on. - * @fmt...: QMP message to send to qemu + * @fmt...: QMP message to send to qemu; formats arguments through + * json-lexer.c (only understands '%((l|ll|I64)?d|[ipsf])'). * * Sends a QMP message to QEMU and leaves the response in the stream. */ @@ -134,7 +137,7 @@ QDict *qtest_qmp_eventwait_ref(QTestState *s, const cha= r *event); /** * qtest_hmp: * @s: #QTestState instance to operate on. - * @fmt...: HMP command to send to QEMU + * @fmt...: HMP command to send to QEMU, formats arguments like vsprintf(). * * Send HMP command to QEMU via QMP's human-monitor-command. * QMP events are discarded. @@ -535,7 +538,8 @@ static inline void qtest_end(void) =20 /** * qmp: - * @fmt...: QMP message to send to qemu + * @fmt...: QMP message to send to qemu; formats arguments through + * json-lexer.c (only understands '%((l|ll|I64)?d|[ipsf])'). * * Sends a QMP message to QEMU and returns the response. */ @@ -543,7 +547,8 @@ QDict *qmp(const char *fmt, ...); =20 /** * qmp_async: - * @fmt...: QMP message to send to qemu + * @fmt...: QMP message to send to qemu; formats arguments through + * json-lexer.c (only understands '%((l|ll|I64)?d|[ipsf])'). * * Sends a QMP message to QEMU and leaves the response in the stream. */ @@ -551,7 +556,8 @@ void qmp_async(const char *fmt, ...); =20 /** * qmp_discard_response: - * @fmt...: QMP message to send to qemu + * @fmt...: QMP message to send to qemu; formats arguments through + * json-lexer.c (only understands '%((l|ll|I64)?d|[ipsf])'). * * Sends a QMP message to QEMU and consumes the response. */ @@ -592,7 +598,7 @@ static inline QDict *qmp_eventwait_ref(const char *even= t) =20 /** * hmp: - * @fmt...: HMP command to send to QEMU + * @fmt...: HMP command to send to QEMU, formats arguments like vsprintf(). * * Send HMP command to QEMU via QMP's human-monitor-command. * --=20 2.7.5