From nobody Mon Feb 9 08:57:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1632358360747809.0383159882373; Wed, 22 Sep 2021 17:52:40 -0700 (PDT) Received: from localhost ([::1]:46278 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mTCyd-0004k7-Ol for importer@patchew.org; Wed, 22 Sep 2021 20:52:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55468) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTCvv-0000yr-LQ for qemu-devel@nongnu.org; Wed, 22 Sep 2021 20:49:51 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:25944) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mTCvu-0006HL-2u for qemu-devel@nongnu.org; Wed, 22 Sep 2021 20:49:51 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-213-_PzkBeS8PgCw9JrskajPsg-1; Wed, 22 Sep 2021 20:49:48 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1B48618D6A2E; Thu, 23 Sep 2021 00:49:47 +0000 (UTC) Received: from scv.redhat.com (unknown [10.22.9.55]) by smtp.corp.redhat.com (Postfix) with ESMTP id E6C6B60BF4; Thu, 23 Sep 2021 00:49:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1632358189; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oIR3Z53lZP5ccHTneCuI5NEqDeFZdnQRcOV89ezjkQA=; b=E41PK3tunguai1BomsXn4FhU+PMMD9Eg5ItvcF0apxgKdJIRnA7YoYwBMT496KaI2H5JoS 6zaS71JJGa0CGgha+T6CSYq3B1WbUe0HR9aKIorS9R1MBs+qDkjvnGMqpNOgqceeO5xim6 UH2OzDW7N/ze4S2WTOSCSA4SJH5eIhc= X-MC-Unique: _PzkBeS8PgCw9JrskajPsg-1 From: John Snow To: qemu-devel@nongnu.org Subject: [PATCH v2 03/17] python/aqmp: Return cleared events from EventListener.clear() Date: Wed, 22 Sep 2021 20:49:24 -0400 Message-Id: <20210923004938.3999963-4-jsnow@redhat.com> In-Reply-To: <20210923004938.3999963-1-jsnow@redhat.com> References: <20210923004938.3999963-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jsnow@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.472, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Vladimir Sementsov-Ogievskiy , Eduardo Habkost , qemu-block@nongnu.org, Hanna Reitz , Cleber Rosa , John Snow Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1632358362655100001 Content-Type: text/plain; charset="utf-8" This serves two purposes: (1) It is now possible to discern whether or not clear() removed any event(s) from the queue with absolute certainty, and (2) It is now very easy to get a List of all pending events in one chunk, which is useful for the sync bridge. Signed-off-by: John Snow Reviewed-by: Hanna Reitz --- python/qemu/aqmp/events.py | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/python/qemu/aqmp/events.py b/python/qemu/aqmp/events.py index 271899f6b82..5f7150c78d4 100644 --- a/python/qemu/aqmp/events.py +++ b/python/qemu/aqmp/events.py @@ -562,7 +562,7 @@ def empty(self) -> bool: """ return self._queue.empty() =20 - def clear(self) -> None: + def clear(self) -> List[Message]: """ Clear this listener of all pending events. =20 @@ -570,17 +570,22 @@ def clear(self) -> None: pending FIFO queue synchronously. It can be also be used to manually clear any pending events, if desired. =20 + :return: The cleared events, if any. + .. warning:: Take care when discarding events. Cleared events will be silently tossed on the floor. All events that were ever accepted by this listener are visible in `history()`. """ + events =3D [] while True: try: - self._queue.get_nowait() + events.append(self._queue.get_nowait()) except asyncio.QueueEmpty: break =20 + return events + def __aiter__(self) -> AsyncIterator[Message]: return self =20 --=20 2.31.1