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net: inet_connect(), inet_connect_opts(): add in_progress argument

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It's used to indicate the special case where a valid file-descriptor
is returned (ie. success) but the connection can't be completed
w/o blocking.

This is needed because QERR_SOCKET_CONNECT_IN_PROGRESS is not
treated like an error and a future commit will drop it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Luiz Capitulino 2012-08-01 13:42:47 -03:00
parent eef5ad1086
commit 02a08fef07
6 changed files with 17 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
migration-tcp.c
View File

@ -86,7 +86,7 @@ int tcp_start_outgoing_migration(MigrationState *s, const char *host_port,
s->write = socket_write;
s->close = tcp_close;
s->fd = inet_connect(host_port, false, errp);
s->fd = inet_connect(host_port, false, NULL, errp);
if (!error_is_set(errp)) {
migrate_fd_connect(s);

2
nbd.c
View File

@ -162,7 +162,7 @@ int tcp_socket_outgoing(const char *address, uint16_t port)
int tcp_socket_outgoing_spec(const char *address_and_port)
{
return inet_connect(address_and_port, true, NULL);
return inet_connect(address_and_port, true, NULL, NULL);
}
int tcp_socket_incoming(const char *address, uint16_t port)

2
qemu-char.c
View File

@ -2446,7 +2446,7 @@ static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
if (is_listen) {
fd = inet_listen_opts(opts, 0, NULL);
} else {
fd = inet_connect_opts(opts, NULL);
fd = inet_connect_opts(opts, NULL, NULL);
}
}
if (fd < 0) {

14
qemu-sockets.c
View File

@ -209,7 +209,7 @@ listen:
return slisten;
}
int inet_connect_opts(QemuOpts *opts, Error **errp)
int inet_connect_opts(QemuOpts *opts, bool *in_progress, Error **errp)
{
struct addrinfo ai,*res,*e;
const char *addr;
@ -224,6 +224,10 @@ int inet_connect_opts(QemuOpts *opts, Error **errp)
ai.ai_family = PF_UNSPEC;
ai.ai_socktype = SOCK_STREAM;
if (in_progress) {
*in_progress = false;
}
addr = qemu_opt_get(opts, "host");
port = qemu_opt_get(opts, "port");
block = qemu_opt_get_bool(opts, "block", 0);
@ -277,6 +281,10 @@ int inet_connect_opts(QemuOpts *opts, Error **errp)
#else
if (!block && (rc == -EINPROGRESS)) {
#endif
if (in_progress) {
*in_progress = true;
}
error_set(errp, QERR_SOCKET_CONNECT_IN_PROGRESS);
} else if (rc < 0) {
if (NULL == e->ai_next)
@ -487,7 +495,7 @@ int inet_listen(const char *str, char *ostr, int olen,
return sock;
}
int inet_connect(const char *str, bool block, Error **errp)
int inet_connect(const char *str, bool block, bool *in_progress, Error **errp)
{
QemuOpts *opts;
int sock = -1;
@ -497,7 +505,7 @@ int inet_connect(const char *str, bool block, Error **errp)
if (block) {
qemu_opt_set(opts, "block", "on");
}
sock = inet_connect_opts(opts, errp);
sock = inet_connect_opts(opts, in_progress, errp);
} else {
error_set(errp, QERR_SOCKET_CREATE_FAILED);
}

4
qemu_socket.h
View File

@ -42,8 +42,8 @@ int send_all(int fd, const void *buf, int len1);
int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp);
int inet_listen(const char *str, char *ostr, int olen,
int socktype, int port_offset, Error **errp);
int inet_connect_opts(QemuOpts *opts, Error **errp);
int inet_connect(const char *str, bool block, Error **errp);
int inet_connect_opts(QemuOpts *opts, bool *in_progress, Error **errp);
int inet_connect(const char *str, bool block, bool *in_progress, Error **errp);
int inet_dgram_opts(QemuOpts *opts);
const char *inet_strfamily(int family);

2
ui/vnc.c
View File

@ -3061,7 +3061,7 @@ int vnc_display_open(DisplayState *ds, const char *display)
if (strncmp(display, "unix:", 5) == 0)
vs->lsock = unix_connect(display+5);
else
vs->lsock = inet_connect(display, true, NULL);
vs->lsock = inet_connect(display, true, NULL, NULL);
if (-1 == vs->lsock) {
g_free(vs->display);
vs->display = NULL;