From patchwork Tue Oct 6 23:58:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 11819437 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1F7CA14D5 for ; Wed, 7 Oct 2020 00:13:09 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B9A53206F0 for ; Wed, 7 Oct 2020 00:13:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="QAmWXHpr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9A53206F0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:56772 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kPx4t-0004fU-UG for patchwork-qemu-devel@patchwork.kernel.org; Tue, 06 Oct 2020 20:13:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38820) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kPwrT-0000AZ-1U for qemu-devel@nongnu.org; Tue, 06 Oct 2020 19:59:15 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:26688) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kPwrP-0002Oa-0T for qemu-devel@nongnu.org; Tue, 06 Oct 2020 19:59:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1602028750; 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=bi8KTrLebYMpML/77oR/Ex/2wVBs+0QzkhpIjMNk71Y=; b=QAmWXHprdqs72GAvdwWL4JdzT7V/9LFPv+PpCClk2D6VfPcUWzsyalqFydBcqMZOFNbAu7 AC9bdeQYecZQgYLzCMH5g6Df/mGiIR8r8tbcOvo5yPAw/L+IdL26rKBRB2Syttlm3Vfcuw Ne4XymvFWC9dWDEEfeoY34Xv8pZU/lg= 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-435-AYpSl5aLNwmVyVnM7StgUg-1; Tue, 06 Oct 2020 19:59:08 -0400 X-MC-Unique: AYpSl5aLNwmVyVnM7StgUg-1 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 A1CFE8064BD; Tue, 6 Oct 2020 23:59:07 +0000 (UTC) Received: from scv.redhat.com (ovpn-120-38.rdu2.redhat.com [10.10.120.38]) by smtp.corp.redhat.com (Postfix) with ESMTP id A6EF460BFA; Tue, 6 Oct 2020 23:59:06 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org Subject: [PATCH 16/20] python/console_socket: avoid encoding to/from string Date: Tue, 6 Oct 2020 19:58:13 -0400 Message-Id: <20201006235817.3280413-17-jsnow@redhat.com> In-Reply-To: <20201006235817.3280413-1-jsnow@redhat.com> References: <20201006235817.3280413-1-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 Received-SPF: pass client-ip=216.205.24.124; envelope-from=jsnow@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/06 00:55:20 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.733, 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=0.001, RCVD_IN_MSPIKE_WL=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 , Eduardo Habkost , qemu-block@nongnu.org, Max Reitz , Cleber Rosa , John Snow Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" We can work directly in bytes instead of translating back and forth to string, which removes the question of which encodings to use. Signed-off-by: John Snow Reviewed-by: Kevin Wolf --- python/qemu/console_socket.py | 20 +++++--------------- 1 file changed, 5 insertions(+), 15 deletions(-) diff --git a/python/qemu/console_socket.py b/python/qemu/console_socket.py index 57e6eee0176..f060d79e06d 100644 --- a/python/qemu/console_socket.py +++ b/python/qemu/console_socket.py @@ -34,12 +34,12 @@ def __init__(self, address: str, file: Optional[str] = None, drain: bool = False): self._recv_timeout_sec = 300.0 self._sleep_time = 0.5 - self._buffer: Deque[str] = deque() + self._buffer: Deque[int] = deque() socket.socket.__init__(self, socket.AF_UNIX, socket.SOCK_STREAM) self.connect(address) self._logfile = None if file: - self._logfile = open(file, "w") + self._logfile = open(file, "bw") self._open = True self._drain_thread = None if drain: @@ -83,15 +83,10 @@ def close(self) -> None: def _drain_socket(self) -> None: """process arriving characters into in memory _buffer""" data = socket.socket.recv(self, 1) - # latin1 is needed since there are some chars - # we are receiving that cannot be encoded to utf-8 - # such as 0xe2, 0x80, 0xA6. - string = data.decode("latin1") if self._logfile: - self._logfile.write("{}".format(string)) + self._logfile.write(data) self._logfile.flush() - for c in string: - self._buffer.extend(c) + self._buffer.extend(data) def recv(self, bufsize: int = 1, flags: int = 0) -> bytes: """Return chars from in memory buffer. @@ -107,12 +102,7 @@ def recv(self, bufsize: int = 1, flags: int = 0) -> bytes: elapsed_sec = time.time() - start_time if elapsed_sec > self._recv_timeout_sec: raise socket.timeout - chars = ''.join([self._buffer.popleft() for i in range(bufsize)]) - # We choose to use latin1 to remain consistent with - # handle_read() and give back the same data as the user would - # receive if they were reading directly from the - # socket w/o our intervention. - return chars.encode("latin1") + return bytes((self._buffer.popleft() for i in range(bufsize))) def setblocking(self, value: bool) -> None: """When not draining we pass thru to the socket,