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qemu-sockets: Add error to non-blocking connect handler

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An error value here would be quite handy and more consistent
with the rest of the code.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
[Make sure SO_ERROR value is passed to error_setg_errno. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Corey Minyard 2014-10-08 07:11:56 -05:00 • committed by Paolo Bonzini
parent 5748e4c2be
commit 5179502918
5 changed files with 25 additions and 12 deletions
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20
util/qemu-sockets.c
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@ -234,6 +234,7 @@ static void wait_for_connect(void *opaque)
int val = 0, rc = 0;
socklen_t valsize = sizeof(val);
bool in_progress;
Error *err = NULL;
qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
@ -244,10 +245,12 @@ static void wait_for_connect(void *opaque)
/* update rc to contain error */
if (!rc && val) {
rc = -1;
errno = val;
}
/* connect error */
if (rc < 0) {
error_setg_errno(&err, errno, "Error connecting to socket");
closesocket(s->fd);
s->fd = rc;
}
@ -257,9 +260,14 @@ static void wait_for_connect(void *opaque)
while (s->current_addr->ai_next != NULL && s->fd < 0) {
s->current_addr = s->current_addr->ai_next;
s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL);
if (s->fd < 0) {
error_free(err);
err = NULL;
error_setg_errno(&err, errno, "Unable to start socket connect");
}
/* connect in progress */
if (in_progress) {
return;
goto out;
}
}
@ -267,9 +275,11 @@ static void wait_for_connect(void *opaque)
}
if (s->callback) {
s->callback(s->fd, s->opaque);
s->callback(s->fd, err, s->opaque);
}
g_free(s);
out:
error_free(err);
}
static int inet_connect_addr(struct addrinfo *addr, bool *in_progress,
@ -401,7 +411,7 @@ int inet_connect_opts(QemuOpts *opts, Error **errp,
return sock;
} else {
if (callback) {
callback(sock, opaque);
callback(sock, NULL, opaque);
}
}
g_free(connect_state);
@ -769,7 +779,7 @@ int unix_connect_opts(QemuOpts *opts, Error **errp,
} else if (rc >= 0) {
/* non blocking socket immediate success, call callback */
if (callback != NULL) {
callback(sock, opaque);
callback(sock, NULL, opaque);
}
}
@ -919,7 +929,7 @@ int socket_connect(SocketAddress *addr, Error **errp,
fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
if (fd >= 0 && callback) {
qemu_set_nonblock(fd);
callback(fd, opaque);
callback(fd, NULL, opaque);
}
break;