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qemu-char: handle EINTR for TCP character devices 

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-07-21 09:25:54 +02:00
parent 0b8e2c1002
commit 9172f428af
1 changed files with 11 additions and 2 deletions
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13
qemu-char.c
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@ -2797,7 +2797,10 @@ static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
#ifdef MSG_CMSG_CLOEXEC
flags |= MSG_CMSG_CLOEXEC;
#endif
ret = recvmsg(s->fd, &msg, flags);
do {
ret = recvmsg(s->fd, &msg, flags);
} while (ret == -1 && errno == EINTR);
if (ret > 0 && s->is_unix) {
unix_process_msgfd(chr, &msg);
}
@ -2808,7 +2811,13 @@ static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
static ssize_t tcp_chr_recv(CharDriverState *chr, char *buf, size_t len)
{
TCPCharDriver *s = chr->opaque;
return qemu_recv(s->fd, buf, len, 0);
ssize_t ret;
do {
ret = qemu_recv(s->fd, buf, len, 0);
} while (ret == -1 && socket_error() == EINTR);
return ret;
}
#endif