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qemu-char: Convert socket backend to QAPI 

Convert the socket char backend to the new style QAPI framework;
this allows it to return an Error ** to callers who might not
want it to print directly about socket failures.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1409653457-27863-2-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2014-09-02 11:24:13 +01:00
parent 8af47027eb
commit dafd325dbb
1 changed files with 56 additions and 56 deletions
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112
qemu-char.c
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@ -2985,61 +2985,6 @@ static CharDriverState *qemu_chr_open_socket_fd(int fd, bool do_nodelay,
return chr;
}
static CharDriverState *qemu_chr_open_socket(QemuOpts *opts)
{
CharDriverState *chr = NULL;
Error *local_err = NULL;
int fd = -1;
bool is_listen = qemu_opt_get_bool(opts, "server", false);
bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true);
bool is_telnet = qemu_opt_get_bool(opts, "telnet", false);
bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true);
bool is_unix = qemu_opt_get(opts, "path") != NULL;
if (is_unix) {
if (is_listen) {
fd = unix_listen_opts(opts, &local_err);
} else {
fd = unix_connect_opts(opts, &local_err, NULL, NULL);
}
} else {
if (is_listen) {
fd = inet_listen_opts(opts, 0, &local_err);
} else {
fd = inet_connect_opts(opts, &local_err, NULL, NULL);
}
}
if (fd < 0) {
goto fail;
}
if (!is_waitconnect)
qemu_set_nonblock(fd);
chr = qemu_chr_open_socket_fd(fd, do_nodelay, is_listen, is_telnet,
is_waitconnect, &local_err);
if (local_err) {
goto fail;
}
return chr;
fail:
if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
}
if (fd >= 0) {
closesocket(fd);
}
if (chr) {
g_free(chr->opaque);
g_free(chr);
}
return NULL;
}
/*********************************************************/
/* Ring buffer chardev */
@ -3450,6 +3395,60 @@ static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend,
backend->mux->chardev = g_strdup(chardev);
}
static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
Error **errp)
{
bool is_listen = qemu_opt_get_bool(opts, "server", false);
bool is_waitconnect = is_listen && qemu_opt_get_bool(opts, "wait", true);
bool is_telnet = qemu_opt_get_bool(opts, "telnet", false);
bool do_nodelay = !qemu_opt_get_bool(opts, "delay", true);
const char *path = qemu_opt_get(opts, "path");
const char *host = qemu_opt_get(opts, "host");
const char *port = qemu_opt_get(opts, "port");
SocketAddress *addr;
if (!path) {
if (!host) {
error_setg(errp, "chardev: socket: no host given");
return;
}
if (!port) {
error_setg(errp, "chardev: socket: no port given");
return;
}
}
backend->socket = g_new0(ChardevSocket, 1);
backend->socket->has_nodelay = true;
backend->socket->nodelay = do_nodelay;
backend->socket->has_server = true;
backend->socket->server = is_listen;
backend->socket->has_telnet = true;
backend->socket->telnet = is_telnet;
backend->socket->has_wait = true;
backend->socket->wait = is_waitconnect;
addr = g_new0(SocketAddress, 1);
if (path) {
addr->kind = SOCKET_ADDRESS_KIND_UNIX;
addr->q_unix = g_new0(UnixSocketAddress, 1);
addr->q_unix->path = g_strdup(path);
} else {
addr->kind = SOCKET_ADDRESS_KIND_INET;
addr->inet = g_new0(InetSocketAddress, 1);
addr->inet->host = g_strdup(host);
addr->inet->port = g_strdup(port);
addr->inet->has_to = qemu_opt_get(opts, "to");
addr->inet->to = qemu_opt_get_number(opts, "to", 0);
addr->inet->has_ipv4 = qemu_opt_get(opts, "ipv4");
addr->inet->ipv4 = qemu_opt_get_bool(opts, "ipv4", 0);
addr->inet->has_ipv6 = qemu_opt_get(opts, "ipv6");
addr->inet->ipv6 = qemu_opt_get_bool(opts, "ipv6", 0);
}
backend->socket->addr = addr;
}
typedef struct CharDriver {
const char *name;
/* old, pre qapi */
@ -4138,7 +4137,8 @@ void qmp_chardev_remove(const char *id, Error **errp)
static void register_types(void)
{
register_char_driver_qapi("null", CHARDEV_BACKEND_KIND_NULL, NULL);
register_char_driver("socket", qemu_chr_open_socket);
register_char_driver_qapi("socket", CHARDEV_BACKEND_KIND_SOCKET,
qemu_chr_parse_socket);
register_char_driver("udp", qemu_chr_open_udp);
register_char_driver_qapi("ringbuf", CHARDEV_BACKEND_KIND_RINGBUF,
qemu_chr_parse_ringbuf);