static void
queue_message_restarted (SoupMessage *msg, gpointer user_data)
{
SoupMessageQueueItem *item = user_data;
if (item->proxy_addr) {
g_object_unref (item->proxy_addr);
item->proxy_addr = NULL;
}
if (item->proxy_uri) {
soup_uri_free (item->proxy_uri);
item->proxy_uri = NULL;
}
if (item->conn &&
(!soup_message_is_keepalive (msg) ||
SOUP_STATUS_IS_REDIRECTION (msg->status_code))) {
if (soup_connection_get_state (item->conn) == SOUP_CONNECTION_IN_USE)
soup_connection_set_state (item->conn, SOUP_CONNECTION_IDLE);
g_object_unref (item->conn);
item->conn = NULL;
}
g_cancellable_reset (item->cancellable);
item->state = SOUP_MESSAGE_STARTING;
}
static void
run_queue (SoupSessionAsync *sa)
{
SoupSession *session = SOUP_SESSION (sa);
SoupMessageQueue *queue = soup_session_get_queue (session);
SoupMessageQueueItem *item;
SoupProxyURIResolver *proxy_resolver;
SoupMessage *msg;
SoupConnection *conn;
gboolean try_pruning = TRUE, should_prune = FALSE;
soup_session_cleanup_connections (session, FALSE);
try_again:
for (item = soup_message_queue_first (queue);
item && !should_prune;
item = soup_message_queue_next (queue, item)) {
msg = item->msg;
/* CONNECT messages are handled specially */
if (msg->method == SOUP_METHOD_CONNECT)
continue;
if (soup_message_io_in_progress (msg))
continue;
if (!item->resolved_proxy_addr) {
proxy_resolver = (SoupProxyURIResolver *)soup_session_get_feature_for_message (session, SOUP_TYPE_PROXY_URI_RESOLVER, msg);
if (proxy_resolver) {
resolve_proxy_addr (item, proxy_resolver);
continue;
} else
item->resolved_proxy_addr = TRUE;
}
conn = soup_session_get_connection (session, item,
&should_prune);
if (!conn)
continue;
if (soup_connection_get_state (conn) == SOUP_CONNECTION_NEW) {
soup_connection_connect_async (conn, got_connection,
session);
} else
soup_session_send_queue_item (session, item, conn);
}
if (item)
soup_message_queue_item_unref (item);
if (try_pruning && should_prune) {
/* There is at least one message in the queue that
* could be sent if we pruned an idle connection from
* some other server.
*/
if (soup_session_cleanup_connections (session, TRUE)) {
try_pruning = should_prune = FALSE;
goto try_again;
}
}
}
static void
connection_created (SoupSession *session, SoupConnection *conn,
gpointer user_data)
{
SoupConnectionState *state = user_data;
*state = soup_connection_get_state (conn);
if (*state != SOUP_CONNECTION_NEW) {
debug_printf (1, " Unexpected initial state: %d\n",
*state);
errors++;
}
g_signal_connect (conn, "notify::state",
G_CALLBACK (connection_state_changed),
state);
}
static void
connection_state_changed (GObject *object, GParamSpec *param,
gpointer user_data)
{
SoupConnection *conn = SOUP_CONNECTION (object);
SoupConnectionState *state = user_data;
SoupConnectionState new_state;
new_state = soup_connection_get_state (conn);
if (state_transitions[*state] != new_state) {
debug_printf (1, " Unexpected transition: %s -> %s\n",
state_names[*state], state_names[new_state]);
errors++;
} else {
debug_printf (2, " %s -> %s\n",
state_names[*state], state_names[new_state]);
}
*state = new_state;
}
gboolean
soup_session_try_prune_connection (SoupSession *session)
{
SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
GPtrArray *conns;
GHashTableIter iter;
gpointer conn, host;
int i;
conns = g_ptr_array_new ();
g_mutex_lock (priv->host_lock);
g_hash_table_iter_init (&iter, priv->conns);
while (g_hash_table_iter_next (&iter, &conn, &host)) {
/* Don't prune a connection that is currently in use,
* or hasn't been used yet.
*/
if (soup_connection_get_state (conn) == SOUP_CONNECTION_IDLE &&
soup_connection_last_used (conn) > 0)
g_ptr_array_add (conns, g_object_ref (conn));
}
g_mutex_unlock (priv->host_lock);
if (!conns->len) {
g_ptr_array_free (conns, TRUE);
return FALSE;
}
for (i = 0; i < conns->len; i++) {
soup_connection_disconnect (conns->pdata[i]);
g_object_unref (conns->pdata[i]);
}
g_ptr_array_free (conns, TRUE);
return TRUE;
}
static void
process_queue_item (SoupMessageQueueItem *item,
gboolean *should_prune,
gboolean loop)
{
SoupSession *session = item->session;
SoupProxyURIResolver *proxy_resolver;
do {
switch (item->state) {
case SOUP_MESSAGE_STARTING:
proxy_resolver = (SoupProxyURIResolver *)soup_session_get_feature_for_message (session, SOUP_TYPE_PROXY_URI_RESOLVER, item->msg);
if (!proxy_resolver) {
item->state = SOUP_MESSAGE_AWAITING_CONNECTION;
break;
}
resolve_proxy_addr (item, proxy_resolver);
return;
case SOUP_MESSAGE_AWAITING_CONNECTION:
if (!soup_session_get_connection (session, item, should_prune))
return;
if (soup_connection_get_state (item->conn) != SOUP_CONNECTION_NEW) {
item->state = SOUP_MESSAGE_READY;
break;
}
item->state = SOUP_MESSAGE_CONNECTING;
soup_message_queue_item_ref (item);
g_object_ref (session);
soup_connection_connect_async (item->conn, item->cancellable,
got_connection, item);
return;
case SOUP_MESSAGE_READY:
item->state = SOUP_MESSAGE_RUNNING;
soup_session_send_queue_item (session, item, message_completed);
break;
case SOUP_MESSAGE_RESTARTING:
item->state = SOUP_MESSAGE_STARTING;
soup_message_restarted (item->msg);
break;
case SOUP_MESSAGE_FINISHING:
item->state = SOUP_MESSAGE_FINISHED;
soup_message_finished (item->msg);
if (item->state != SOUP_MESSAGE_FINISHED)
break;
g_object_ref (session);
soup_session_unqueue_item (session, item);
if (item->callback)
item->callback (session, item->msg, item->callback_data);
g_object_unref (item->msg);
do_idle_run_queue (session);
g_object_unref (session);
return;
default:
/* Nothing to do with this message in any
* other state.
*/
return;
}
} while (loop && item->state != SOUP_MESSAGE_FINISHED);
}
/**
* soup_session_get_connection:
* @session: a #SoupSession
* @item: a #SoupMessageQueueItem
* @try_pruning: on return, whether or not to try pruning a connection
*
* Tries to find or create a connection for @item; this is an internal
* method for #SoupSession subclasses.
*
* If there is an idle connection to the relevant host available, then
* that connection will be returned. The connection will be set to
* %SOUP_CONNECTION_IN_USE, so the caller must call
* soup_connection_set_state() to set it to %SOUP_CONNECTION_IDLE if
* it ends up not using the connection right away.
*
* If there is no idle connection available, but it is possible to
* create a new connection, then one will be created and returned
* (with state %SOUP_CONNECTION_NEW). The caller MUST then call
* soup_connection_connect_sync() or soup_connection_connect_async()
* to connect it. If the connection attempt fails, the caller must
* call soup_session_connection_failed() to tell the session to free
* the connection.
*
* If no connection is available and a new connection cannot be made,
* soup_session_get_connection() will return %NULL. If @session has
* the maximum number of open connections open, but does not have the
* maximum number of per-host connections open to the relevant host,
* then *@try_pruning will be set to %TRUE. In this case, the caller
* can call soup_session_try_prune_connection() to close an idle
* connection, and then try soup_session_get_connection() again. (If
* calling soup_session_try_prune_connection() wouldn't help, then
* *@try_pruning is left untouched; it is NOT set to %FALSE.)
*
* Return value: a #SoupConnection, or %NULL
**/
SoupConnection *
soup_session_get_connection (SoupSession *session,
SoupMessageQueueItem *item,
gboolean *try_pruning)
{
SoupSessionPrivate *priv = SOUP_SESSION_GET_PRIVATE (session);
SoupConnection *conn;
SoupSessionHost *host;
SoupAddress *remote_addr, *tunnel_addr;
SoupSSLCredentials *ssl_creds;
GSList *conns;
gboolean has_pending = FALSE;
SoupURI *uri;
g_mutex_lock (priv->host_lock);
host = get_host_for_message (session, item->msg);
for (conns = host->connections; conns; conns = conns->next) {
if (soup_connection_get_state (conns->data) == SOUP_CONNECTION_IDLE) {
soup_connection_set_state (conns->data, SOUP_CONNECTION_IN_USE);
g_mutex_unlock (priv->host_lock);
return conns->data;
} else if (soup_connection_get_state (conns->data) == SOUP_CONNECTION_CONNECTING)
has_pending = TRUE;
}
if (has_pending) {
/* We've already started one connection to this
* address, so don't start another one until it's
* done.
*/
g_mutex_unlock (priv->host_lock);
return NULL;
}
if (host->num_conns >= priv->max_conns_per_host) {
g_mutex_unlock (priv->host_lock);
return NULL;
}
if (priv->num_conns >= priv->max_conns) {
*try_pruning = TRUE;
g_mutex_unlock (priv->host_lock);
return NULL;
}
if (item->proxy_addr) {
remote_addr = item->proxy_addr;
tunnel_addr = NULL;
} else {
remote_addr = host->addr;
tunnel_addr = NULL;
}
uri = soup_message_get_uri (item->msg);
if (uri->scheme == SOUP_URI_SCHEME_HTTPS) {
if (!priv->ssl_creds)
priv->ssl_creds = soup_ssl_get_client_credentials (priv->ssl_ca_file);
ssl_creds = priv->ssl_creds;
if (item->proxy_addr)
tunnel_addr = host->addr;
} else
ssl_creds = NULL;
conn = soup_connection_new (
SOUP_CONNECTION_REMOTE_ADDRESS, remote_addr,
SOUP_CONNECTION_TUNNEL_ADDRESS, tunnel_addr,
SOUP_CONNECTION_PROXY_URI, item->proxy_uri,
SOUP_CONNECTION_SSL_CREDENTIALS, ssl_creds,
SOUP_CONNECTION_ASYNC_CONTEXT, priv->async_context,
SOUP_CONNECTION_TIMEOUT, priv->io_timeout,
SOUP_CONNECTION_IDLE_TIMEOUT, priv->idle_timeout,
NULL);
g_signal_connect (conn, "disconnected",
G_CALLBACK (connection_disconnected),
session);
g_hash_table_insert (priv->conns, conn, host);
priv->num_conns++;
host->num_conns++;
host->connections = g_slist_prepend (host->connections, conn);
g_mutex_unlock (priv->host_lock);
return conn;
}
