vcl: support for eventfd mq signaling
- support eventfd based mq signaling. Based on configuration, vcl
epoll/select can use either condvars or epoll on mq eventfds.
- add vcl support for memfd segments
- vpp explicitly registers cut-through segments with apps/vcl
- if using eventfd, make ldp allow one call to libc_epoll_create. Needed
for the message queue epfd
- update svm_queue_t to allow blocking calls with eventfd signaling.
Change-Id: I064151ac370bbe29bb16c968bf4e3659c8286bea
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session/application.c b/src/vnet/session/application.c
index 757e12e..3e127df 100644
--- a/src/vnet/session/application.c
+++ b/src/vnet/session/application.c
@@ -312,6 +312,12 @@
}
else
{
+ if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
+ {
+ clib_warning ("mq eventfds can only be used if socket transport is "
+ "used for api");
+ return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
+ }
seg_type = SSVM_SEGMENT_PRIVATE;
}
@@ -336,6 +342,8 @@
props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
if (options[APP_OPTIONS_EVT_QUEUE_SIZE])
props->evt_q_size = options[APP_OPTIONS_EVT_QUEUE_SIZE];
+ if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
+ props->use_mq_eventfd = 1;
if (options[APP_OPTIONS_TLS_ENGINE])
app->tls_engine = options[APP_OPTIONS_TLS_ENGINE];
props->segment_type = seg_type;
@@ -970,6 +978,8 @@
local_session_t *
application_get_local_session (application_t * app, u32 session_index)
{
+ if (pool_is_free_index (app->local_sessions, session_index))
+ return 0;
return pool_elt_at_index (app->local_sessions, session_index);
}
@@ -1078,6 +1088,23 @@
return 0;
}
+static void
+application_local_session_fix_eventds (svm_msg_q_t * sq, svm_msg_q_t * cq)
+{
+ int fd;
+
+ /*
+ * segment manager initializes only the producer eventds, since vpp is
+ * typically the producer. But for local sessions, we also pass to the
+ * apps the mqs they listen on for events from peer apps, so they are also
+ * consumer fds.
+ */
+ fd = svm_msg_q_get_producer_eventfd (sq);
+ svm_msg_q_set_consumer_eventfd (sq, fd);
+ fd = svm_msg_q_get_producer_eventfd (cq);
+ svm_msg_q_set_consumer_eventfd (cq, fd);
+}
+
int
application_local_session_connect (u32 table_index, application_t * client,
application_t * server,
@@ -1125,8 +1152,12 @@
return seg_index;
}
seg = segment_manager_get_segment_w_lock (sm, seg_index);
- sq = segment_manager_alloc_queue (seg, props->evt_q_size);
- cq = segment_manager_alloc_queue (seg, cprops->evt_q_size);
+ sq = segment_manager_alloc_queue (seg, props);
+ cq = segment_manager_alloc_queue (seg, cprops);
+
+ if (props->use_mq_eventfd)
+ application_local_session_fix_eventds (sq, cq);
+
ls->server_evt_q = pointer_to_uword (sq);
ls->client_evt_q = pointer_to_uword (cq);
rv = segment_manager_try_alloc_fifos (seg, props->rx_fifo_size,
@@ -1273,7 +1304,7 @@
if (app_index == ls->client_index)
{
- send_local_session_disconnect_callback (ls->app_index, ls);
+ mq_send_local_session_disconnected_cb (ls->app_index, ls);
}
else
{
@@ -1292,7 +1323,7 @@
}
else
{
- send_local_session_disconnect_callback (client->index, ls);
+ mq_send_local_session_disconnected_cb (client->index, ls);
}
}
diff --git a/src/vnet/session/application.h b/src/vnet/session/application.h
index f6c8127..22df21e 100644
--- a/src/vnet/session/application.h
+++ b/src/vnet/session/application.h
@@ -267,8 +267,8 @@
return (tp != TRANSPORT_PROTO_NONE);
}
-void send_local_session_disconnect_callback (u32 app_index,
- local_session_t * ls);
+void mq_send_local_session_disconnected_cb (u32 app_index,
+ local_session_t * ls);
int application_connect (u32 client_index, u32 api_context,
session_endpoint_t * sep);
diff --git a/src/vnet/session/application_interface.c b/src/vnet/session/application_interface.c
index c8fa37f..524e7b5 100644
--- a/src/vnet/session/application_interface.c
+++ b/src/vnet/session/application_interface.c
@@ -475,7 +475,7 @@
a->session_cb_vft)))
return clib_error_return_code (0, rv, 0, "app init: %d", rv);
- a->app_event_queue_address = pointer_to_uword (app->event_queue);
+ a->app_evt_q = app->event_queue;
sm = segment_manager_get (app->first_segment_manager);
fs = segment_manager_get_segment_w_lock (sm, 0);
@@ -569,7 +569,18 @@
if (session_handle_is_local (a->handle))
{
local_session_t *ls;
- ls = application_get_local_session_from_handle (a->handle);
+
+ /* Disconnect reply came to worker 1 not main thread */
+ if (vlib_get_thread_index () == 1)
+ {
+ vlib_rpc_call_main_thread (vnet_disconnect_session, (u8 *) a,
+ sizeof (*a));
+ return 0;
+ }
+
+ if (!(ls = application_get_local_session_from_handle (a->handle)))
+ return 0;
+
if (ls->app_index != a->app_index && ls->client_index != a->app_index)
{
clib_warning ("app %u is neither client nor server for session %u",
diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h
index daba169..ba6d266 100644
--- a/src/vnet/session/application_interface.h
+++ b/src/vnet/session/application_interface.h
@@ -42,7 +42,7 @@
* Results
*/
ssvm_private_t *segment;
- u64 app_event_queue_address;
+ svm_msg_q_t *app_evt_q;
u32 app_index;
} vnet_app_attach_args_t;
@@ -138,6 +138,7 @@
_(USE_GLOBAL_SCOPE, "App can use global session scope") \
_(USE_LOCAL_SCOPE, "App can use local session scope") \
_(USE_MQ_FOR_CTRL_MSGS, "Use message queue for ctr msgs") \
+ _(EVT_MQ_USE_EVENTFD, "Use eventfds for signaling") \
typedef enum _app_options
{
@@ -153,6 +154,27 @@
#undef _
} app_options_flags_t;
+#define foreach_fd_type \
+ _(VPP_MQ_SEGMENT, "Fd for vpp's event mq segment") \
+ _(MEMFD_SEGMENT, "Fd for memfd segment") \
+ _(MQ_EVENTFD, "Event fd used by message queue") \
+ _(VPP_MQ_EVENTFD, "Event fd used by vpp's message queue") \
+
+typedef enum session_fd_type_
+{
+#define _(sym, str) SESSION_FD_##sym,
+ foreach_fd_type
+#undef _
+ SESSION_N_FD_TYPE
+} session_fd_type_t;
+
+typedef enum session_fd_flag_
+{
+#define _(sym, str) SESSION_FD_F_##sym = 1 << SESSION_FD_##sym,
+ foreach_fd_type
+#undef _
+} session_fd_flag_t;
+
int vnet_bind_uri (vnet_bind_args_t *);
int vnet_unbind_uri (vnet_unbind_args_t * a);
clib_error_t *vnet_connect_uri (vnet_connect_args_t * a);
diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index c7d2482..6f149ad 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -88,7 +88,7 @@
/**
* Removes segment after acquiring writer lock
*/
-always_inline void
+static inline void
segment_manager_lock_and_del_segment (segment_manager_t * sm, u32 fs_index)
{
svm_fifo_segment_private_t *fs;
@@ -290,8 +290,7 @@
segment = segment_manager_get_segment (sm, seg_index);
if (i == 0)
- sm->event_queue = segment_manager_alloc_queue (segment,
- props->evt_q_size);
+ sm->event_queue = segment_manager_alloc_queue (segment, props);
svm_fifo_segment_preallocate_fifo_pairs (segment,
props->rx_fifo_size,
@@ -311,8 +310,7 @@
return seg_index;
}
segment = segment_manager_get_segment (sm, seg_index);
- sm->event_queue = segment_manager_alloc_queue (segment,
- props->evt_q_size);
+ sm->event_queue = segment_manager_alloc_queue (segment, props);
}
return 0;
@@ -623,7 +621,7 @@
*/
svm_msg_q_t *
segment_manager_alloc_queue (svm_fifo_segment_private_t * segment,
- u32 queue_size)
+ segment_manager_properties_t * props)
{
u32 fifo_evt_size, session_evt_size = 256, notif_q_size;
svm_msg_q_cfg_t _cfg, *cfg = &_cfg;
@@ -631,21 +629,27 @@
void *oldheap;
fifo_evt_size = sizeof (session_event_t);
- notif_q_size = clib_max (16, queue_size >> 4);
+ notif_q_size = clib_max (16, props->evt_q_size >> 4);
/* *INDENT-OFF* */
svm_msg_q_ring_cfg_t rc[SESSION_MQ_N_RINGS] = {
- {queue_size, fifo_evt_size, 0},
+ {props->evt_q_size, fifo_evt_size, 0},
{notif_q_size, session_evt_size, 0}
};
/* *INDENT-ON* */
cfg->consumer_pid = 0;
cfg->n_rings = 2;
- cfg->q_nitems = queue_size;
+ cfg->q_nitems = props->evt_q_size;
cfg->ring_cfgs = rc;
oldheap = ssvm_push_heap (segment->ssvm.sh);
q = svm_msg_q_alloc (cfg);
ssvm_pop_heap (oldheap);
+
+ if (props->use_mq_eventfd)
+ {
+ if (svm_msg_q_alloc_producer_eventfd (q))
+ clib_warning ("failed to alloc eventfd");
+ }
return q;
}
diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h
index 73cb482..aae4f2e 100644
--- a/src/vnet/session/segment_manager.h
+++ b/src/vnet/session/segment_manager.h
@@ -32,8 +32,10 @@
/** Configured additional segment size */
u32 add_segment_size;
- /** Flag that indicates if additional segments should be created */
- u8 add_segment;
+ /** Flags */
+ u8 add_segment:1; /**< can add new segments */
+ u8 use_mq_eventfd:1; /**< use eventfds for mqs */
+ u8 reserved:6;
/** Segment type: if set to SSVM_N_TYPES, private segments are used */
ssvm_segment_type_t segment_type;
@@ -154,7 +156,8 @@
svm_fifo_t * tx_fifo);
u32 segment_manager_evt_q_expected_size (u32 q_size);
svm_msg_q_t *segment_manager_alloc_queue (svm_fifo_segment_private_t * fs,
- u32 queue_size);
+ segment_manager_properties_t *
+ props);
void segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q);
void segment_manager_app_detach (segment_manager_t * sm);
diff --git a/src/vnet/session/session.api b/src/vnet/session/session.api
index 98748d8..58054ae 100644
--- a/src/vnet/session/session.api
+++ b/src/vnet/session/session.api
@@ -13,7 +13,7 @@
* limitations under the License.
*/
-option version = "1.0.3";
+option version = "1.1.0";
/** \brief client->vpp, attach application to session layer
@param client_index - opaque cookie to identify the sender
@@ -38,6 +38,9 @@
@param retval - return code for the request
@param app_event_queue_address - vpp event queue address or 0 if this
connection shouldn't send events
+ @param n_fds - number of fds exchanged
+ @param fd_flags - set of flags that indicate which fds are to be expected
+ over the socket (set only if socket transport available)
@param segment_size - size of first shm segment
@param segment_name_length - length of segment name
@param segment_name - name of segment client needs to attach to
@@ -46,6 +49,8 @@
u32 context;
i32 retval;
u64 app_event_queue_address;
+ u8 n_fds;
+ u8 fd_flags;
u32 segment_size;
u8 segment_name_length;
u8 segment_name[128];
@@ -91,11 +96,16 @@
/** \brief vpp->client, please map an additional shared memory segment
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param segment_name -
+ @param fd_flags - set of flags that indicate which, if any, fds are
+ to be expected over the socket. This is set only if
+ socket transport available
+ @param segment_size - size of the segment to be mapped
+ @param segment_name - name of the segment to be mapped
*/
autoreply define map_another_segment {
u32 client_index;
u32 context;
+ u8 fd_flags;
u32 segment_size;
u8 segment_name[128];
};
@@ -391,6 +401,26 @@
u16 lcl_port;
};
+/** \brief ask app to add a new cut-through registration
+ @param client_index - opaque cookie to identify the sender
+ client to vpp direction only
+ @param context - sender context, to match reply w/ request
+ @param evt_q_address - address of the mq in ssvm segment
+ @param peer_evt_q_address - address of peer's mq in ssvm segment
+ @param n_fds - number of fds exchanged
+ @param fd_flags - flag indicating the fds that will be exchanged over
+ api socket
+*/
+autoreply define app_cut_through_registration_add
+{
+ u32 client_index;
+ u32 context;
+ u64 evt_q_address;
+ u64 peer_evt_q_address;
+ u8 n_fds;
+ u8 fd_flags;
+};
+
/** \brief enable/disable session layer
@param client_index - opaque cookie to identify the sender
client to vpp direction only
diff --git a/src/vnet/session/session.c b/src/vnet/session/session.c
index 56f885b..6378fe8 100644
--- a/src/vnet/session/session.c
+++ b/src/vnet/session/session.c
@@ -1245,6 +1245,11 @@
cfg->q_nitems = evt_q_length;
cfg->ring_cfgs = rc;
smm->vpp_event_queues[i] = svm_msg_q_alloc (cfg);
+ if (smm->evt_qs_use_memfd_seg)
+ {
+ if (svm_msg_q_alloc_consumer_eventfd (smm->vpp_event_queues[i]))
+ clib_warning ("eventfd returned");
+ }
}
if (smm->evt_qs_use_memfd_seg)
diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c
index 76c1021..d1cbc64 100755
--- a/src/vnet/session/session_api.c
+++ b/src/vnet/session/session_api.c
@@ -60,16 +60,15 @@
_(APPLICATION_TLS_KEY_ADD, application_tls_key_add) \
static int
-session_send_memfd_fd (vl_api_registration_t * reg, const ssvm_private_t * sp)
+session_send_fds (vl_api_registration_t * reg, int fds[], int n_fds)
{
clib_error_t *error;
- int fd = sp->fd;
if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
{
clib_warning ("can't send memfd fd");
return -1;
}
- error = vl_api_send_fd_msg (reg, &fd, 1);
+ error = vl_api_send_fd_msg (reg, fds, n_fds);
if (error)
{
clib_error_report (error);
@@ -81,8 +80,10 @@
static int
send_add_segment_callback (u32 api_client_index, const ssvm_private_t * sp)
{
+ int fds[SESSION_N_FD_TYPE], n_fds = 0;
vl_api_map_another_segment_t *mp;
vl_api_registration_t *reg;
+ u8 fd_flags = 0;
reg = vl_mem_api_client_index_to_registration (api_client_index);
if (!reg)
@@ -91,24 +92,31 @@
return -1;
}
- if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD
- && vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
+ if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD)
{
- clib_warning ("can't send memfd fd");
- return -1;
+ if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
+ {
+ clib_warning ("can't send memfd fd");
+ return -1;
+ }
+
+ fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
+ fds[n_fds] = sp->fd;
+ n_fds += 1;
}
- mp = vl_msg_api_alloc_as_if_client (sizeof (*mp));
+ mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_MAP_ANOTHER_SEGMENT);
mp->segment_size = sp->ssvm_size;
+ mp->fd_flags = fd_flags;
strncpy ((char *) mp->segment_name, (char *) sp->name,
sizeof (mp->segment_name) - 1);
vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
- if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD)
- return session_send_memfd_fd (reg, sp);
+ if (n_fds)
+ return session_send_fds (reg, fds, n_fds);
return 0;
}
@@ -126,23 +134,58 @@
return -1;
}
- if (ssvm_type (fs) == SSVM_SEGMENT_MEMFD
- && vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
- {
- clib_warning ("can't send memfd fd");
- return -1;
- }
-
- mp = vl_msg_api_alloc_as_if_client (sizeof (*mp));
+ mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_UNMAP_SEGMENT);
- strncpy ((char *) mp->segment_name, (char *) fs->name,
- sizeof (mp->segment_name) - 1);
+ strcpy ((char *) mp->segment_name, (char *) fs->name);
vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
- if (ssvm_type (fs) == SSVM_SEGMENT_MEMFD)
- return session_send_memfd_fd (reg, fs);
+ return 0;
+}
+
+static int
+send_app_cut_through_registration_add (u32 api_client_index, u64 mq_addr,
+ u64 peer_mq_addr)
+{
+ vl_api_app_cut_through_registration_add_t *mp;
+ vl_api_registration_t *reg;
+ svm_msg_q_t *mq, *peer_mq;
+ int fds[2];
+
+ reg = vl_mem_api_client_index_to_registration (api_client_index);
+ if (!reg)
+ {
+ clib_warning ("no registration: %u", api_client_index);
+ return -1;
+ }
+
+ mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id =
+ clib_host_to_net_u16 (VL_API_APP_CUT_THROUGH_REGISTRATION_ADD);
+
+ mp->evt_q_address = mq_addr;
+ mp->peer_evt_q_address = peer_mq_addr;
+
+ mq = uword_to_pointer (mq_addr, svm_msg_q_t *);
+ peer_mq = uword_to_pointer (peer_mq_addr, svm_msg_q_t *);
+
+ if (svm_msg_q_get_producer_eventfd (mq) != -1)
+ {
+ mp->fd_flags |= SESSION_FD_F_MQ_EVENTFD;
+ mp->n_fds = 2;
+ /* app will overwrite exactly the fds we pass here. So
+ * when we swap mq with peer_mq (accept vs connect) the
+ * fds will still be valid */
+ fds[0] = svm_msg_q_get_consumer_eventfd (mq);
+ fds[1] = svm_msg_q_get_producer_eventfd (peer_mq);
+ }
+
+ vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
+
+ if (mp->n_fds != 0)
+ session_send_fds (reg, fds, mp->n_fds);
return 0;
}
@@ -230,25 +273,25 @@
}
void
-send_local_session_disconnect_callback (u32 app_index, local_session_t * ls)
+mq_send_local_session_disconnected_cb (u32 app_index, local_session_t * ls)
{
application_t *app = application_get (app_index);
- vl_api_disconnect_session_t *mp;
- vl_api_registration_t *reg;
+ svm_msg_q_msg_t _msg, *msg = &_msg;
+ session_disconnected_msg_t *mp;
+ svm_msg_q_t *app_mq;
+ session_event_t *evt;
- reg = vl_mem_api_client_index_to_registration (app->api_client_index);
- if (!reg)
- {
- clib_warning ("no registration: %u", app->api_client_index);
- return;
- }
-
- mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
- memset (mp, 0, sizeof (*mp));
- mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SESSION);
+ app_mq = app->event_queue;
+ svm_msg_q_lock_and_alloc_msg_w_ring (app_mq, SESSION_MQ_CTRL_EVT_RING,
+ SVM_Q_WAIT, msg);
+ svm_msg_q_unlock (app_mq);
+ evt = svm_msg_q_msg_data (app_mq, msg);
+ memset (evt, 0, sizeof (*evt));
+ evt->event_type = SESSION_CTRL_EVT_DISCONNECTED;
+ mp = (session_disconnected_msg_t *) evt->data;
mp->handle = application_local_session_handle (ls);
mp->context = app->api_client_index;
- vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
+ svm_msg_q_add (app_mq, msg, SVM_Q_WAIT);
}
static void
@@ -414,6 +457,12 @@
{
local_session_t *ls = (local_session_t *) s;
local_session_t *ll;
+ u8 main_thread = vlib_num_workers ()? 1 : 0;
+
+ send_app_cut_through_registration_add (app->api_client_index,
+ ls->server_evt_q,
+ ls->client_evt_q);
+
if (application_local_session_listener_has_transport (ls))
{
listener = listen_session_get (ls->listener_index);
@@ -436,7 +485,7 @@
}
mp->handle = application_local_session_handle (ls);
mp->port = ls->port;
- vpp_queue = session_manager_get_vpp_event_queue (0);
+ vpp_queue = session_manager_get_vpp_event_queue (main_thread);
mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
mp->client_event_queue_address = ls->client_evt_q;
mp->server_event_queue_address = ls->server_evt_q;
@@ -542,9 +591,15 @@
else
{
local_session_t *ls = (local_session_t *) s;
+ u8 main_thread = vlib_num_workers ()? 1 : 0;
+
+ send_app_cut_through_registration_add (app->api_client_index,
+ ls->client_evt_q,
+ ls->server_evt_q);
+
mp->handle = application_local_session_handle (ls);
mp->lcl_port = ls->port;
- vpp_mq = session_manager_get_vpp_event_queue (0);
+ vpp_mq = session_manager_get_vpp_event_queue (main_thread);
mp->vpp_event_queue_address = pointer_to_uword (vpp_mq);
mp->client_event_queue_address = ls->client_evt_q;
mp->server_event_queue_address = ls->server_evt_q;
@@ -583,12 +638,13 @@
static void
vl_api_application_attach_t_handler (vl_api_application_attach_t * mp)
{
+ int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
vl_api_application_attach_reply_t *rmp;
ssvm_private_t *segp, *evt_q_segment;
vnet_app_attach_args_t _a, *a = &_a;
vl_api_registration_t *reg;
clib_error_t *error = 0;
- int rv = 0;
+ u8 fd_flags = 0;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
@@ -629,9 +685,32 @@
{
rv = clib_error_get_code (error);
clib_error_report (error);
+ vec_free (a->namespace_id);
+ goto done;
}
vec_free (a->namespace_id);
+ /* Send event queues segment */
+ if ((evt_q_segment = session_manager_get_evt_q_segment ()))
+ {
+ fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT;
+ fds[n_fds] = evt_q_segment->fd;
+ n_fds += 1;
+ }
+ /* Send fifo segment fd if needed */
+ if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
+ {
+ fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
+ fds[n_fds] = a->segment->fd;
+ n_fds += 1;
+ }
+ if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
+ {
+ fd_flags |= SESSION_FD_F_MQ_EVENTFD;
+ fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q);
+ n_fds += 1;
+ }
+
done:
/* *INDENT-OFF* */
@@ -646,20 +725,15 @@
memcpy (rmp->segment_name, segp->name, vec_len (segp->name));
rmp->segment_name_length = vec_len (segp->name);
}
- rmp->app_event_queue_address = a->app_event_queue_address;
+ rmp->app_event_queue_address = pointer_to_uword (a->app_evt_q);
+ rmp->n_fds = n_fds;
+ rmp->fd_flags = fd_flags;
}
}));
/* *INDENT-ON* */
- if (rv)
- return;
-
- /* Send fifo segment fd if needed */
- if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
- session_send_memfd_fd (reg, a->segment);
- /* Send event queues segment */
- if ((evt_q_segment = session_manager_get_evt_q_segment ()))
- session_send_memfd_fd (reg, evt_q_segment);
+ if (n_fds)
+ session_send_fds (reg, fds, n_fds);
}
static void