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#include "pn_node.h"
#include <gio/gio.h>
#include "pn_log.h"
static void *parent_class;
enum pn_node_status {
PN_NODE_STATUS_CLOSED,
PN_NODE_STATUS_CONNECTING,
PN_NODE_STATUS_OPEN,
};
struct pn_node_priv {
char *hostname;
int port;
enum pn_node_status status;
GSocketConnection *socket_conn;
GError *error;
};
struct pn_node *
pn_node_new(void)
{
return g_object_new(PN_NODE_TYPE, NULL);
}
void
pn_node_free(struct pn_node *node)
{
if (!node)
return;
g_object_unref(node);
}
void
pn_node_connect(struct pn_node *node,
const char *hostname,
int port)
{
PN_NODE_GET_CLASS(node)->connect(node, hostname, port);
}
void
pn_node_close(struct pn_node *node)
{
PN_NODE_GET_CLASS(node)->close(node);
}
void
pn_node_set_error(struct pn_node *node,
GError *error)
{
node->priv->error = error;
pn_node_close(node);
}
/* pn_node stuff */
static void
connect_cb(GObject *source,
GAsyncResult *res,
gpointer user_data)
{
struct pn_node *node = user_data;
struct pn_node_priv *priv = node->priv;
GSocketConnection *socket_conn;
GError *error = NULL;
socket_conn = g_socket_client_connect_to_host_finish(G_SOCKET_CLIENT(source), res, &error);
g_object_ref(node);
if (socket_conn) {
priv->status = PN_NODE_STATUS_OPEN;
priv->socket_conn = socket_conn;
struct pn_node_class *class;
class = g_type_class_peek(PN_NODE_TYPE);
g_signal_emit(G_OBJECT(node), class->open_sig, 0, node);
}
else {
pn_node_set_error(node, error);
}
g_object_unref(node);
}
static void
connect_impl(struct pn_node *node,
const char *hostname,
int port)
{
struct pn_node_priv *priv = node->priv;
pn_node_close(node);
priv->hostname = g_strdup(hostname);
priv->port = port;
priv->status = PN_NODE_STATUS_CONNECTING;
{
GSocketClient *client;
client = g_socket_client_new();
g_socket_client_connect_to_host_async(client, hostname, port,
NULL, connect_cb, node);
g_object_unref(client);
}
}
static void
close_impl(struct pn_node *node)
{
struct pn_node_priv *priv = node->priv;
if (priv->status == PN_NODE_STATUS_CLOSED)
return;
priv->status = PN_NODE_STATUS_CLOSED;
if (priv->error) {
struct pn_node_class *class;
class = g_type_class_peek(PN_NODE_TYPE);
g_signal_emit(G_OBJECT(node), class->error_sig, 0, &priv->error, node);
if (priv->error) {
pn_warn(node, "unhandled error: %s", priv->error->message);
g_clear_error(&priv->error);
}
}
if (priv->socket_conn) {
g_object_unref(priv->socket_conn);
priv->socket_conn = NULL;
}
g_free(priv->hostname);
priv->hostname = NULL;
}
/* GObject stuff */
static void
dispose(GObject *obj)
{
pn_node_close(PN_NODE(obj));
G_OBJECT_CLASS(parent_class)->dispose(obj);
}
static void
class_init(void *g_class,
void *class_data)
{
struct pn_node_class *node_class = PN_NODE_CLASS(g_class);
GObjectClass *gobject_class = G_OBJECT_CLASS(g_class);
node_class->connect = &connect_impl;
node_class->close = &close_impl;
gobject_class->dispose = dispose;
parent_class = g_type_class_peek_parent(g_class);
g_type_class_add_private(g_class, sizeof(struct pn_node_priv));
node_class->open_sig = g_signal_new("open", G_TYPE_FROM_CLASS(gobject_class),
G_SIGNAL_RUN_FIRST, 0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
node_class->error_sig = g_signal_new("error", G_TYPE_FROM_CLASS(gobject_class),
G_SIGNAL_RUN_FIRST, 0, NULL, NULL,
g_cclosure_marshal_VOID__POINTER,
G_TYPE_NONE, 1, G_TYPE_POINTER);
}
static void
instance_init(GTypeInstance *instance,
void *g_class)
{
struct pn_node *self = PN_NODE(instance);
struct pn_node_priv *priv;
self->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE(instance, PN_NODE_TYPE, struct pn_node_priv);
}
GType
pn_node_get_type(void)
{
static gsize init_type;
if (g_once_init_enter(&init_type)) {
GType type;
GTypeInfo type_info = {
.class_size = sizeof(struct pn_node_class),
.class_init = class_init,
.instance_size = sizeof(struct pn_node),
.instance_init = instance_init,
};
type = g_type_register_static(G_TYPE_OBJECT, "PnNode", &type_info, 0);
g_once_init_leave(&init_type, type);
}
return init_type;
}
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