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authorDaniel P. Berrangé <berrange@redhat.com>2018-02-22 12:13:51 +0000
committerPaolo Bonzini <pbonzini@redhat.com>2018-03-12 16:12:46 +0100
commitc863fdec6aff6b5a4ca8fff1537b80d9f8b97726 (patch)
treebb2ada1451650ba61510c6b195803f25d5e97342 /chardev
parentc8ca2a23a953bcda04b5e10380f462526ed1ed89 (diff)
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chardev: fix handling of EAGAIN for TCP chardev
When this commit was applied commit 9894dc0cdcc397ee5b26370bc53da6d360a363c2 Author: Daniel P. Berrange <berrange@redhat.com> Date: Tue Jan 19 11:14:29 2016 +0000 char: convert from GIOChannel to QIOChannel The tcp_chr_recv() function was changed to return QIO_CHANNEL_ERR_BLOCK which corresonds to -2. As such the handling for EAGAIN was able to be removed from tcp_chr_read(). Unfortunately in a later commit: commit b6572b4f97a7b126c7b24e165893ed9fe3d72e1f Author: Marc-André Lureau <marcandre.lureau@redhat.com> Date: Fri Mar 11 18:55:24 2016 +0100 char: translate from QIOChannel error to errno The tcp_chr_recv() function was changed back to return -1, with errno set to EAGAIN, without also re-addding support for this to tcp_chr_read() Reported-by: Aleksey Kuleshov <rndfax@yandex.ru> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20180222121351.26191-1-berrange@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'chardev')
-rw-r--r--chardev/char-socket.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/chardev/char-socket.c b/chardev/char-socket.c
index a220803..541fcf4 100644
--- a/chardev/char-socket.c
+++ b/chardev/char-socket.c
@@ -450,7 +450,7 @@ static gboolean tcp_chr_read(QIOChannel *chan, GIOCondition cond, void *opaque)
len = s->max_size;
}
size = tcp_chr_recv(chr, (void *)buf, len);
- if (size == 0 || size == -1) {
+ if (size == 0 || (size == -1 && errno != EAGAIN)) {
/* connection closed */
tcp_chr_disconnect(chr);
} else if (size > 0) {