From: Marc-André Lureau Date: Tue, 16 Aug 2016 08:33:32 +0000 (+0400) Subject: char: fix waiting for TLS and telnet connection X-Git-Tag: qemu-xen-4.8.0-rc1~27 X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=1dc8a6695c731abb7461c637b2512c3670d82be4;p=qemu-xen.git char: fix waiting for TLS and telnet connection Since commit d7a04fd7d5008, tcp_chr_wait_connected() was introduced, so vhost-user could wait until a backend started successfully. In vhost-user case, the chr socket must be plain unix, and the chr+vhost setup happens synchronously during qemu startup. However, with TLS and telnet socket, initial socket setup happens asynchronously, and s->connected is not set after the socket is accepted. In order for tcp_chr_wait_connected() to not keep accepting new connections and proceed with the last accepted socket, it can check for s->ioc instead. Signed-off-by: Marc-André Lureau Reviewed-by: Daniel P. Berrange Message-id: 20160816083332.15088-1-marcandre.lureau@redhat.com Signed-off-by: Peter Maydell --- diff --git a/qemu-char.c b/qemu-char.c index 8a0ab05a7b..5f82ebb774 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -3176,7 +3176,9 @@ static int tcp_chr_wait_connected(CharDriverState *chr, Error **errp) TCPCharDriver *s = chr->opaque; QIOChannelSocket *sioc; - while (!s->connected) { + /* It can't wait on s->connected, since it is set asynchronously + * in TLS and telnet cases, only wait for an accepted socket */ + while (!s->ioc) { if (s->is_listen) { fprintf(stderr, "QEMU waiting for connection on: %s\n", chr->filename);