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bh=bi8KTrLebYMpML/77oR/Ex/2wVBs+0QzkhpIjMNk71Y=; b=QAmWXHprdqs72GAvdwWL4JdzT7V/9LFPv+PpCClk2D6VfPcUWzsyalqFydBcqMZOFNbAu7 AC9bdeQYecZQgYLzCMH5g6Df/mGiIR8r8tbcOvo5yPAw/L+IdL26rKBRB2Syttlm3Vfcuw Ne4XymvFWC9dWDEEfeoY34Xv8pZU/lg= X-MC-Unique: AYpSl5aLNwmVyVnM7StgUg-1 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 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; 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charset="utf-8" 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] = =3D None, drain: bool =3D False): self._recv_timeout_sec =3D 300.0 self._sleep_time =3D 0.5 - self._buffer: Deque[str] =3D deque() + self._buffer: Deque[int] =3D deque() socket.socket.__init__(self, socket.AF_UNIX, socket.SOCK_STREAM) self.connect(address) self._logfile =3D None if file: - self._logfile =3D open(file, "w") + self._logfile =3D open(file, "bw") self._open =3D True self._drain_thread =3D None if drain: @@ -83,15 +83,10 @@ def close(self) -> None: def _drain_socket(self) -> None: """process arriving characters into in memory _buffer""" data =3D 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 =3D 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) =20 def recv(self, bufsize: int =3D 1, flags: int =3D 0) -> bytes: """Return chars from in memory buffer. @@ -107,12 +102,7 @@ def recv(self, bufsize: int =3D 1, flags: int =3D 0) -= > bytes: elapsed_sec =3D time.time() - start_time if elapsed_sec > self._recv_timeout_sec: raise socket.timeout - chars =3D ''.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))) =20 def setblocking(self, value: bool) -> None: """When not draining we pass thru to the socket, --=20 2.26.2