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Thu, 18 Jun 2020 09:23:20 -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-505-_CicEZpHOEOLF_JuABCn9w-1; Thu, 18 Jun 2020 09:23:16 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DE6E980F5C1; Thu, 18 Jun 2020 13:23:14 +0000 (UTC) Received: from jason-ThinkPad-T430s.redhat.com (ovpn-12-109.pek2.redhat.com [10.72.12.109]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3B9495BAC4; Thu, 18 Jun 2020 13:23:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1592486598; 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=qqfJNiWKmwLpVNKhcLugZJD0VA27CJTpg935USOUFCM=; b=bQwx7rqriioTByLd5Fg7+tf+XYCSCYzZtAZc3uJsJ0+2kHwBejs2WFcTqtnZlmqLyfd4jW 3giMa7bQjQMiF0Rd+TR5YL/Jv/MJVwe+hfMv1+eSs5ZGd7lT8DOn88PfXL4AE5AWDhU0kT lPi2/NaGQxiYu3EYqB+RT0VxYwS+z94= X-MC-Unique: _CicEZpHOEOLF_JuABCn9w-1 From: Jason Wang To: peter.maydell@linaro.org, qemu-devel@nongnu.org Subject: [PULL V2 25/33] chardev/char.c: Use qemu_co_sleep_ns if in coroutine Date: Thu, 18 Jun 2020 21:21:40 +0800 Message-Id: <1592486508-6135-26-git-send-email-jasowang@redhat.com> In-Reply-To: <1592486508-6135-1-git-send-email-jasowang@redhat.com> References: <1592486508-6135-1-git-send-email-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" 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=207.211.31.81; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/18 00:57:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN 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: Zhang Chen , Jason Wang , Lukas Straub Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Lukas Straub To be able to convert compare_chr_send to a coroutine in the next commit, use qemu_co_sleep_ns if in coroutine. Signed-off-by: Lukas Straub Reviewed-by: Marc-Andr=C3=A9 Lureau Reviewed-by: Zhang Chen Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Zhang Chen Signed-off-by: Jason Wang --- chardev/char.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/chardev/char.c b/chardev/char.c index ea06c5f..e305129 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -38,6 +38,7 @@ #include "qemu/module.h" #include "qemu/option.h" #include "qemu/id.h" +#include "qemu/coroutine.h" =20 #include "chardev/char-mux.h" =20 @@ -119,7 +120,11 @@ static int qemu_chr_write_buffer(Chardev *s, retry: res =3D cc->chr_write(s, buf + *offset, len - *offset); if (res < 0 && errno =3D=3D EAGAIN && write_all) { - g_usleep(100); + if (qemu_in_coroutine()) { + qemu_co_sleep_ns(QEMU_CLOCK_REALTIME, 100000); + } else { + g_usleep(100); + } goto retry; } =20 --=20 2.5.0