*/
#include <vnet/session/application.h>
+#include <vnet/session/application_interface.h>
#include <vnet/session/session.h>
-/*
+/**
* Pool from which we allocate all applications
*/
static application_t *app_pool;
-/*
+/**
* Hash table of apps by api client index
*/
static uword *app_by_api_client_index;
+/**
+ * Default application event queue size
+ */
+static u32 default_app_evt_queue_size = 128;
+
int
application_api_queue_is_full (application_t * app)
{
return 0;
}
+application_t *
+application_new ()
+{
+ application_t *app;
+ pool_get (app_pool, app);
+ memset (app, 0, sizeof (*app));
+ app->index = application_get_index (app);
+ app->connects_seg_manager = ~0;
+ return app;
+}
+
void
application_del (application_t * app)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
api_main_t *am = &api_main;
void *oldheap;
- session_manager_t *sm;
+ segment_manager_t *sm;
+ u64 handle;
+ u32 index, *handles = 0;
+ int i;
+ vnet_unbind_args_t _a, *a = &_a;
+
+ /*
+ * Cleanup segment managers
+ */
+ if (app->connects_seg_manager != (u32) ~ 0)
+ {
+ sm = segment_manager_get (app->connects_seg_manager);
+ segment_manager_del (sm);
+ }
- if (app->mode == APP_SERVER)
+ /* *INDENT-OFF* */
+ hash_foreach (handle, index, app->listeners_table,
+ ({
+ vec_add1 (handles, handle);
+ }));
+ /* *INDENT-ON* */
+
+ /* Actual listener cleanup */
+ for (i = 0; i < vec_len (handles); i++)
{
- sm = session_manager_get (app->session_manager_index);
- session_manager_del (smm, sm);
+ a->app_index = app->api_client_index;
+ a->handle = handles[i];
+ /* seg manager is removed when unbind completes */
+ vnet_unbind (a);
}
- /* Free the event fifo in the /vpe-api shared-memory segment */
+ /*
+ * Free the event fifo in the /vpe-api shared-memory segment
+ */
oldheap = svm_push_data_heap (am->vlib_rp);
if (app->event_queue)
unix_shared_memory_queue_free (app->event_queue);
svm_pop_heap (oldheap);
application_table_del (app);
-
pool_put (app_pool, app);
}
static void
-application_verify_cb_fns (application_type_t type, session_cb_vft_t * cb_fns)
+application_verify_cb_fns (session_cb_vft_t * cb_fns)
{
- if (type == APP_SERVER && cb_fns->session_accept_callback == 0)
+ if (cb_fns->session_accept_callback == 0)
clib_warning ("No accept callback function provided");
- if (type == APP_CLIENT && cb_fns->session_connected_callback == 0)
+ if (cb_fns->session_connected_callback == 0)
clib_warning ("No session connected callback function provided");
if (cb_fns->session_disconnect_callback == 0)
clib_warning ("No session disconnect callback function provided");
clib_warning ("No session reset callback function provided");
}
-application_t *
-application_new (application_type_t type, session_type_t sst,
- u32 api_client_index, u32 flags, session_cb_vft_t * cb_fns)
+int
+application_init (application_t * app, u32 api_client_index, u64 * options,
+ session_cb_vft_t * cb_fns)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
api_main_t *am = &api_main;
- application_t *app;
+ segment_manager_t *sm;
+ segment_manager_properties_t *props;
void *oldheap;
- session_manager_t *sm;
+ u32 app_evt_queue_size;
+ int rv;
- pool_get (app_pool, app);
- memset (app, 0, sizeof (*app));
+ app_evt_queue_size = options[APP_EVT_QUEUE_SIZE] > 0 ?
+ options[APP_EVT_QUEUE_SIZE] : default_app_evt_queue_size;
/* Allocate event fifo in the /vpe-api shared-memory segment */
oldheap = svm_push_data_heap (am->vlib_rp);
/* Allocate server event queue */
app->event_queue =
- unix_shared_memory_queue_init (128 /* nels $$$$ config */ ,
+ unix_shared_memory_queue_init (app_evt_queue_size,
sizeof (session_fifo_event_t),
0 /* consumer pid */ ,
0
svm_pop_heap (oldheap);
- /* If a server, allocate session manager */
- if (type == APP_SERVER)
- {
- pool_get (smm->session_managers, sm);
- memset (sm, 0, sizeof (*sm));
+ /* Setup segment manager */
+ sm = segment_manager_new ();
+ sm->app_index = app->index;
+ props = &app->sm_properties;
+ props->add_segment_size = options[SESSION_OPTIONS_ADD_SEGMENT_SIZE];
+ props->rx_fifo_size = options[SESSION_OPTIONS_RX_FIFO_SIZE];
+ props->tx_fifo_size = options[SESSION_OPTIONS_TX_FIFO_SIZE];
+ props->add_segment = props->add_segment_size != 0;
- app->session_manager_index = sm - smm->session_managers;
- }
- else if (type == APP_CLIENT)
- {
- /* Allocate connect session manager if needed */
- if (smm->connect_manager_index[sst] == INVALID_INDEX)
- connects_session_manager_init (smm, sst);
- app->session_manager_index = smm->connect_manager_index[sst];
- }
+ if ((rv = segment_manager_init (sm, props,
+ options[SESSION_OPTIONS_SEGMENT_SIZE])))
+ return rv;
- app->mode = type;
- app->index = application_get_index (app);
- app->session_type = sst;
+ app->first_segment_manager = segment_manager_index (sm);
app->api_client_index = api_client_index;
- app->flags = flags;
+ app->flags = options[SESSION_OPTIONS_FLAGS];
app->cb_fns = *cb_fns;
/* Check that the obvious things are properly set up */
- application_verify_cb_fns (type, cb_fns);
+ application_verify_cb_fns (cb_fns);
/* Add app to lookup by api_client_index table */
application_table_add (app);
- return app;
+ return 0;
}
application_t *
return app - app_pool;
}
+static segment_manager_t *
+application_alloc_segment_manager (application_t * app)
+{
+ segment_manager_t *sm = 0;
+
+ if (app->first_segment_manager != (u32) ~ 0)
+ {
+ sm = segment_manager_get (app->first_segment_manager);
+ app->first_segment_manager = ~0;
+ return sm;
+ }
+
+ sm = segment_manager_new ();
+ if (segment_manager_init (sm, &app->sm_properties, 0))
+ return 0;
+ return sm;
+}
+
+/**
+ * Start listening local transport endpoint for requested transport.
+ *
+ * Creates a 'dummy' stream session with state LISTENING to be used in session
+ * lookups, prior to establishing connection. Requests transport to build
+ * it's own specific listening connection.
+ */
int
-application_server_init (application_t * server, u32 segment_size,
- u32 add_segment_size, u32 rx_fifo_size,
- u32 tx_fifo_size, u8 ** segment_name)
+application_start_listen (application_t * srv, session_type_t session_type,
+ transport_endpoint_t * tep, u64 * res)
{
- session_manager_main_t *smm = vnet_get_session_manager_main ();
- session_manager_t *sm;
- int rv;
+ segment_manager_t *sm;
+ stream_session_t *s;
+ u64 handle;
+
+ s = listen_session_new (session_type);
+ s->app_index = srv->index;
+
+ if (stream_session_listen (s, tep))
+ goto err;
+
+ /* Allocate segment manager. All sessions derived out of a listen session
+ * have fifos allocated by the same segment manager. */
+ sm = application_alloc_segment_manager (srv);
+ if (sm == 0)
+ goto err;
+
+ /* Add to app's listener table. Useful to find all child listeners
+ * when app goes down, although, just for unbinding this is not needed */
+ handle = listen_session_get_handle (s);
+ hash_set (srv->listeners_table, handle, segment_manager_index (sm));
- sm = session_manager_get (server->session_manager_index);
+ *res = handle;
+ return 0;
+
+err:
+ listen_session_del (s);
+ return -1;
+}
+
+/**
+ * Stop listening on session associated to handle
+ */
+int
+application_stop_listen (application_t * srv, u64 handle)
+{
+ stream_session_t *listener;
+ uword *indexp;
+ segment_manager_t *sm;
- /* Add first segment */
- if ((rv = session_manager_add_first_segment (smm, sm, segment_size,
- segment_name)))
+ if (srv && hash_get (srv->listeners_table, handle) == 0)
{
- return rv;
+ clib_warning ("app doesn't own handle %llu!", handle);
+ return -1;
}
- /* Setup session manager */
- sm->add_segment_size = add_segment_size;
- sm->rx_fifo_size = rx_fifo_size;
- sm->tx_fifo_size = tx_fifo_size;
- sm->add_segment = sm->add_segment_size != 0;
+ listener = listen_session_get_from_handle (handle);
+ stream_session_stop_listen (listener);
+
+ indexp = hash_get (srv->listeners_table, handle);
+ ASSERT (indexp);
+
+ sm = segment_manager_get (*indexp);
+ segment_manager_del (sm);
+ hash_unset (srv->listeners_table, handle);
+ listen_session_del (listener);
+
return 0;
}
+int
+application_open_session (application_t * app, session_type_t sst,
+ transport_endpoint_t * tep, u32 api_context)
+{
+ segment_manager_t *sm;
+ transport_connection_t *tc = 0;
+ int rv;
+
+ /* Make sure we have a segment manager for connects */
+ if (app->connects_seg_manager == (u32) ~ 0)
+ {
+ sm = application_alloc_segment_manager (app);
+ if (sm == 0)
+ return -1;
+ app->connects_seg_manager = segment_manager_index (sm);
+ }
+
+ if ((rv = stream_session_open (app->index, sst, tep, &tc)))
+ return rv;
+
+ /* Store api_context for when the reply comes. Not the nicest thing
+ * but better allocating a separate half-open pool. */
+ tc->s_index = api_context;
+
+ return 0;
+}
+
+segment_manager_t *
+application_get_connect_segment_manager (application_t * app)
+{
+ ASSERT (app->connects_seg_manager != (u32) ~ 0);
+ return segment_manager_get (app->connects_seg_manager);
+}
+
+segment_manager_t *
+application_get_listen_segment_manager (application_t * app,
+ stream_session_t * s)
+{
+ uword *smp;
+ smp = hash_get (app->listeners_table, listen_session_get_handle (s));
+ ASSERT (smp != 0);
+ return segment_manager_get (*smp);
+}
+
+static u8 *
+app_get_name_from_reg_index (application_t * app)
+{
+ u8 *app_name;
+
+ vl_api_registration_t *regp;
+ regp = vl_api_client_index_to_registration (app->api_client_index);
+ if (!regp)
+ app_name = format (0, "builtin-%d%c", app->index, 0);
+ else
+ app_name = format (0, "%s%c", regp->name, 0);
+
+ return app_name;
+}
+
u8 *
-format_application_server (u8 * s, va_list * args)
+format_application_listener (u8 * s, va_list * args)
{
- application_t *srv = va_arg (*args, application_t *);
+ application_t *app = va_arg (*args, application_t *);
+ u64 handle = va_arg (*args, u64);
+ u32 index = va_arg (*args, u32);
int verbose = va_arg (*args, int);
- vl_api_registration_t *regp;
stream_session_t *listener;
- u8 *server_name, *str, *seg_name;
- u32 segment_size;
+ u8 *app_name, *str;
- if (srv == 0)
+ if (app == 0)
{
if (verbose)
- s = format (s, "%-40s%-20s%-15s%-15s%-10s", "Connection", "Server",
- "Segment", "API Client", "Cookie");
+ s = format (s, "%-40s%-20s%-15s%-15s%-10s", "Connection", "App",
+ "API Client", "ListenerID", "SegManager");
else
- s = format (s, "%-40s%-20s", "Connection", "Server");
+ s = format (s, "%-40s%-20s", "Connection", "App");
return s;
}
- regp = vl_api_client_index_to_registration (srv->api_client_index);
- if (!regp)
- server_name = format (0, "builtin-%d%c", srv->index, 0);
- else
- server_name = regp->name;
-
- listener = stream_session_listener_get (srv->session_type,
- srv->session_index);
+ app_name = app_get_name_from_reg_index (app);
+ listener = listen_session_get_from_handle (handle);
str = format (0, "%U", format_stream_session, listener, verbose);
- session_manager_get_segment_info (listener->server_segment_index, &seg_name,
- &segment_size);
if (verbose)
{
- s = format (s, "%-40s%-20s%-20s%-10d%-10d", str, server_name,
- seg_name, srv->api_client_index, srv->accept_cookie);
+ s = format (s, "%-40s%-20s%-15u%-15u%-10u", str, app_name,
+ app->api_client_index, handle, index);
}
else
- s = format (s, "%-40s%-20s", str, server_name);
+ s = format (s, "%-40s%-20s", str, app_name);
+
+ vec_free (app_name);
return s;
}
-u8 *
-format_application_client (u8 * s, va_list * args)
+void
+application_format_connects (application_t * app, int verbose)
{
- application_t *client = va_arg (*args, application_t *);
- int verbose = va_arg (*args, int);
- stream_session_t *session;
- u8 *str, *seg_name;
- u32 segment_size;
+ vlib_main_t *vm = vlib_get_main ();
+ segment_manager_t *sm;
+ u8 *app_name, *s = 0;
+ int i, j;
- if (client == 0)
+ /* Header */
+ if (app == 0)
{
if (verbose)
- s =
- format (s, "%-40s%-20s%-10s", "Connection", "Segment",
- "API Client");
+ vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App",
+ "API Client", "SegManager");
else
- s = format (s, "%-40s", "Connection");
+ vlib_cli_output (vm, "%-40s%-20s", "Connection", "App");
+ return;
+ }
- return s;
+ /* make sure */
+ if (app->connects_seg_manager == (u32) ~ 0)
+ return;
+
+ app_name = app_get_name_from_reg_index (app);
+
+ /* Across all fifo segments */
+ sm = segment_manager_get (app->connects_seg_manager);
+ for (j = 0; j < vec_len (sm->segment_indices); j++)
+ {
+ svm_fifo_segment_private_t *fifo_segment;
+ svm_fifo_t **fifos;
+ u8 *str;
+
+ fifo_segment = svm_fifo_get_segment (sm->segment_indices[j]);
+ fifos = svm_fifo_segment_get_fifos (fifo_segment);
+ for (i = 0; i < vec_len (fifos); i++)
+ {
+ svm_fifo_t *fifo;
+ u32 session_index, thread_index;
+ stream_session_t *session;
+
+ /* There are 2 fifos/session. Avoid printing twice. */
+ if (i % 2)
+ continue;
+
+ fifo = fifos[i];
+ session_index = fifo->server_session_index;
+ thread_index = fifo->server_thread_index;
+
+ session = stream_session_get (session_index, thread_index);
+ str = format (0, "%U", format_stream_session, session, verbose);
+
+ if (verbose)
+ s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
+ app->api_client_index, app->connects_seg_manager);
+ else
+ s = format (s, "%-40s%-20s", str, app_name);
+
+ vlib_cli_output (vm, "%v", s);
+
+ vec_reset_length (s);
+ vec_free (str);
+ }
+ vec_free (s);
}
- session = stream_session_get (client->session_index, client->thread_index);
- str = format (0, "%U", format_stream_session, session, verbose);
+ vec_free (app_name);
+}
- session_manager_get_segment_info (session->server_segment_index, &seg_name,
- &segment_size);
- if (verbose)
+u8 *
+format_application (u8 * s, va_list * args)
+{
+ application_t *app = va_arg (*args, application_t *);
+ CLIB_UNUSED (int verbose) = va_arg (*args, int);
+ u8 *app_name;
+
+ if (app == 0)
{
- s = format (s, "%-40s%-20s%-10d%", str, seg_name,
- client->api_client_index);
+ if (verbose)
+ s = format (s, "%-10s%-20s%-15s%-15s%-15s%-15s", "Index", "Name",
+ "API Client", "Add seg size", "Rx fifo size",
+ "Tx fifo size");
+ else
+ s = format (s, "%-10s%-20s%-20s", "Index", "Name", "API Client");
+ return s;
}
+
+ app_name = app_get_name_from_reg_index (app);
+ if (verbose)
+ s = format (s, "%-10d%-20s%-15d%-15d%-15d%-15d", app->index, app_name,
+ app->api_client_index, app->sm_properties.add_segment_size,
+ app->sm_properties.rx_fifo_size,
+ app->sm_properties.tx_fifo_size);
else
- s = format (s, "%-40s", str);
+ s = format (s, "%-10d%-20s%-20d", app->index, app_name,
+ app->api_client_index);
return s;
}
show_app_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
- session_manager_main_t *smm = &session_manager_main;
application_t *app;
int do_server = 0;
int do_client = 0;
int verbose = 0;
- if (!smm->is_enabled)
+ if (!session_manager_is_enabled ())
{
clib_error_return (0, "session layer is not enabled");
}
if (do_server)
{
+ u64 handle;
+ u32 index;
if (pool_elts (app_pool))
{
- vlib_cli_output (vm, "%U", format_application_server,
- 0 /* header */ ,
+ vlib_cli_output (vm, "%U", format_application_listener,
+ 0 /* header */ , 0, 0,
verbose);
/* *INDENT-OFF* */
pool_foreach (app, app_pool,
({
- if (app->mode == APP_SERVER)
- vlib_cli_output (vm, "%U", format_application_server, app,
- verbose);
+ /* App's listener sessions */
+ if (hash_elts (app->listeners_table) == 0)
+ continue;
+ hash_foreach (handle, index, app->listeners_table,
+ ({
+ vlib_cli_output (vm, "%U", format_application_listener, app,
+ handle, index, verbose);
+ }));
}));
/* *INDENT-ON* */
}
{
if (pool_elts (app_pool))
{
- vlib_cli_output (vm, "%U", format_application_client,
- 0 /* header */ ,
- verbose);
+ application_format_connects (0, verbose);
+
/* *INDENT-OFF* */
pool_foreach (app, app_pool,
({
- if (app->mode == APP_CLIENT)
- vlib_cli_output (vm, "%U", format_application_client, app,
- verbose);
+ if (app->connects_seg_manager == (u32)~0)
+ continue;
+ application_format_connects (app, verbose);
}));
/* *INDENT-ON* */
}
vlib_cli_output (vm, "No active client bindings");
}
+ /* Print app related info */
+ if (!do_server && !do_client)
+ {
+ vlib_cli_output (vm, "%U", format_application, 0, verbose);
+ pool_foreach (app, app_pool, (
+ {
+ vlib_cli_output (vm, "%U",
+ format_application, app,
+ verbose);
+ }
+ ));
+ }
+
return 0;
}
Code Review / vpp.git / blobdiff