s->tx_fifo->client_thread_index = wrk->wrk_index;
s->session_state = STATE_UPDATED;
- if (s->shared_index != VCL_INVALID_SESSION_INDEX)
- {
- vcl_shared_session_t *ss;
- ss = vcl_shared_session_get (s->shared_index);
- if (vec_len (ss->workers) > 1)
- VDBG (0, "workers need to be updated");
- }
VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
s->vpp_handle, wrk->wrk_index);
}
vec_reset_length (wrk->pending_session_wrk_updates);
}
-static void
+void
vcl_flush_mq_events (void)
{
vcl_worker_t *wrk = vcl_worker_get_current ();
return VPPCOM_OK;
}
-static void
-vcl_cleanup_bapi (void)
-{
- socket_client_main_t *scm = &socket_client_main;
- api_main_t *am = &api_main;
-
- am->my_client_index = ~0;
- am->my_registration = 0;
- am->vl_input_queue = 0;
- am->msg_index_by_name_and_crc = 0;
- scm->socket_fd = 0;
-
- vl_client_api_unmap ();
-}
-
-static void
-vcl_cleanup_forked_child (vcl_worker_t * wrk, vcl_worker_t * child_wrk)
-{
- vcl_worker_t *sub_child;
- int tries = 0;
-
- if (child_wrk->forked_child != ~0)
- {
- sub_child = vcl_worker_get_if_valid (child_wrk->forked_child);
- if (sub_child)
- {
- /* Wait a bit, maybe the process is going away */
- while (kill (sub_child->current_pid, 0) >= 0 && tries++ < 50)
- usleep (1e3);
- if (kill (sub_child->current_pid, 0) < 0)
- vcl_cleanup_forked_child (child_wrk, sub_child);
- }
- }
- vcl_worker_cleanup (child_wrk, 1 /* notify vpp */ );
- VDBG (0, "Cleaned up wrk %u", child_wrk->wrk_index);
- wrk->forked_child = ~0;
-}
-
-static struct sigaction old_sa;
-
-static void
-vcl_intercept_sigchld_handler (int signum, siginfo_t * si, void *uc)
-{
- vcl_worker_t *wrk, *child_wrk;
-
- if (vcl_get_worker_index () == ~0)
- return;
-
- if (sigaction (SIGCHLD, &old_sa, 0))
- {
- VERR ("couldn't restore sigchld");
- exit (-1);
- }
-
- wrk = vcl_worker_get_current ();
- if (wrk->forked_child == ~0)
- return;
-
- child_wrk = vcl_worker_get_if_valid (wrk->forked_child);
- if (!child_wrk)
- goto done;
-
- if (si && si->si_pid != child_wrk->current_pid)
- {
- VDBG (0, "unexpected child pid %u", si->si_pid);
- goto done;
- }
- vcl_cleanup_forked_child (wrk, child_wrk);
-
-done:
- if (old_sa.sa_flags & SA_SIGINFO)
- {
- void (*fn) (int, siginfo_t *, void *) = old_sa.sa_sigaction;
- fn (signum, si, uc);
- }
- else
- {
- void (*fn) (int) = old_sa.sa_handler;
- if (fn)
- fn (signum);
- }
-}
-
-static void
-vcl_incercept_sigchld ()
-{
- struct sigaction sa;
- clib_memset (&sa, 0, sizeof (sa));
- sa.sa_sigaction = vcl_intercept_sigchld_handler;
- sa.sa_flags = SA_SIGINFO;
- if (sigaction (SIGCHLD, &sa, &old_sa))
- {
- VERR ("couldn't intercept sigchld");
- exit (-1);
- }
-}
-
-static void
-vcl_app_pre_fork (void)
-{
- vcl_incercept_sigchld ();
- vcl_flush_mq_events ();
-}
-
-static void
-vcl_app_fork_child_handler (void)
-{
- vcl_worker_t *parent_wrk, *wrk;
- int rv, parent_wrk_index;
- u8 *child_name;
-
- parent_wrk_index = vcl_get_worker_index ();
- VDBG (0, "initializing forked child with parent wrk %u", parent_wrk_index);
-
- /*
- * Allocate worker
- */
- vcl_set_worker_index (~0);
- if (!vcl_worker_alloc_and_init ())
- VERR ("couldn't allocate new worker");
-
- /*
- * Attach to binary api
- */
- child_name = format (0, "%v-child-%u%c", vcm->app_name, getpid (), 0);
- vcl_cleanup_bapi ();
- vppcom_api_hookup ();
- vcm->app_state = STATE_APP_START;
- rv = vppcom_connect_to_vpp ((char *) child_name);
- vec_free (child_name);
- if (rv)
- {
- VERR ("couldn't connect to VPP!");
- return;
- }
-
- /*
- * Register worker with vpp and share sessions
- */
- vcl_worker_register_with_vpp ();
- parent_wrk = vcl_worker_get (parent_wrk_index);
- wrk = vcl_worker_get_current ();
- wrk->vpp_event_queues = vec_dup (parent_wrk->vpp_event_queues);
- vcl_worker_share_sessions (parent_wrk);
- parent_wrk->forked_child = vcl_get_worker_index ();
-
- VDBG (0, "forked child main worker initialized");
- vcm->forking = 0;
-}
-
-static void
-vcl_app_fork_parent_handler (void)
-{
- vcm->forking = 1;
- while (vcm->forking)
- ;
-}
-
/**
* Handle app exit
*
pool_alloc (vcm->workers, vcl_cfg->max_workers);
clib_spinlock_init (&vcm->workers_lock);
clib_rwlock_init (&vcm->segment_table_lock);
- pthread_atfork (vcl_app_pre_fork, vcl_app_fork_parent_handler,
- vcl_app_fork_child_handler);
atexit (vppcom_app_exit);
/* Allocate default worker */
}
int
-vppcom_session_close (uint32_t session_handle)
+vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
+ vcl_session_handle_t sh, u8 do_disconnect)
{
- vcl_worker_t *wrk = vcl_worker_get_current ();
- u8 is_vep, do_disconnect = 1;
- vcl_session_t *session = 0;
session_state_t state;
u32 next_sh, vep_sh;
int rv = VPPCOM_OK;
u64 vpp_handle;
-
- session = vcl_session_get_w_handle (wrk, session_handle);
- if (!session)
- return VPPCOM_EBADFD;
-
- if (session->shared_index != ~0)
- do_disconnect = vcl_worker_unshare_session (wrk, session);
+ u8 is_vep;
is_vep = session->is_vep;
next_sh = session->vep.next_sh;
state = session->session_state;
vpp_handle = session->vpp_handle;
- VDBG (1, "closing session handle %u vpp handle %u", session_handle,
- vpp_handle);
+ VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
if (is_vep)
{
while (next_sh != ~0)
{
- rv = vppcom_epoll_ctl (session_handle, EPOLL_CTL_DEL, next_sh, 0);
+ rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
if (PREDICT_FALSE (rv < 0))
VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u"
" failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
{
if (session->is_vep_session)
{
- rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, session_handle, 0);
+ rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
if (rv < 0)
- VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u "
- "failed! rv %d (%s)", vpp_handle, session_handle, vep_sh,
- rv, vppcom_retval_str (rv));
+ VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
+ "failed! rv %d (%s)", session->session_index, vpp_handle,
+ vep_sh, rv, vppcom_retval_str (rv));
}
if (!do_disconnect)
{
- VDBG (0, "session handle %u [0x%llx] disconnect skipped",
- session_handle, vpp_handle);
+ VDBG (0, "session %u [0x%llx] disconnect skipped",
+ session->session_index, vpp_handle);
goto cleanup;
}
if (state & STATE_LISTEN)
{
- rv = vppcom_session_unbind (session_handle);
+ rv = vppcom_session_unbind (sh);
if (PREDICT_FALSE (rv < 0))
- VDBG (0, "vpp handle 0x%llx, sid %u: listener unbind failed! "
- "rv %d (%s)", vpp_handle, session_handle, rv,
+ VDBG (0, "session %u [0x%llx]: listener unbind failed! "
+ "rv %d (%s)", session->session_index, vpp_handle, rv,
vppcom_retval_str (rv));
}
else if (state & STATE_OPEN)
{
- rv = vppcom_session_disconnect (session_handle);
+ rv = vppcom_session_disconnect (sh);
if (PREDICT_FALSE (rv < 0))
- clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
- "session disconnect failed! rv %d (%s)",
- getpid (), vpp_handle, session_handle,
- rv, vppcom_retval_str (rv));
+ VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
+ " rv %d (%s)", session->session_index, vpp_handle,
+ rv, vppcom_retval_str (rv));
}
else if (state == STATE_DISCONNECT)
{
}
}
-cleanup:
-
if (vcl_session_is_ct (session))
{
vcl_cut_through_registration_t *ctr;
vcl_ct_registration_unlock (wrk);
}
+cleanup:
vcl_session_table_del_vpp_handle (wrk, vpp_handle);
vcl_session_free (wrk, session);
- VDBG (0, "session handle %u [0x%llx] removed", session_handle, vpp_handle);
-
+ VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
vcl_evt (VCL_EVT_CLOSE, session, rv);
return rv;
}
+int
+vppcom_session_close (uint32_t session_handle)
+{
+ vcl_worker_t *wrk = vcl_worker_get_current ();
+ vcl_session_t *session;
+
+ session = vcl_session_get_w_handle (wrk, session_handle);
+ if (!session)
+ return VPPCOM_EBADFD;
+ return vcl_session_cleanup (wrk, session, session_handle,
+ 1 /* do_disconnect */ );
+}
+
int
vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
{
rv = VPPCOM_EINVAL;
break;
- case VPPCOM_ATTR_GET_REFCNT:
- rv = vcl_session_get_refcnt (session);
- break;
-
case VPPCOM_ATTR_SET_SHUT:
if (*flags == SHUT_RD || *flags == SHUT_RDWR)
VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
return session_handle >> 24;
}
-int
-vppcom_session_handle (uint32_t session_index)
-{
- return (vcl_get_worker_index () << 24) | session_index;
-}
-
int
vppcom_worker_register (void)
{
Code Review / vpp.git / blobdiff