+void session_wrk_handle_evts_main_rpc (void *);
+void session_wrk_program_app_wrk_evts (session_worker_t *wrk,
+ u32 app_wrk_index);
+
+session_t *session_alloc_for_connection (transport_connection_t * tc);
+session_t *session_alloc_for_half_open (transport_connection_t *tc);
+void session_get_original_dst (transport_endpoint_t *i2o_src,
+ transport_endpoint_t *i2o_dst,
+ transport_proto_t transport_proto,
+ u32 *original_dst, u16 *original_dst_port);
+
+typedef void (pool_safe_realloc_rpc_fn) (void *rpc_args);
+
+typedef struct
+{
+ u8 ph[STRUCT_OFFSET_OF (pool_header_t, max_elts) + 4];
+ u32 flag;
+} pool_safe_realloc_header_t;
+
+STATIC_ASSERT_SIZEOF (pool_safe_realloc_header_t, sizeof (pool_header_t));
+
+#define POOL_REALLOC_SAFE_ELT_THRESH 32
+
+#define pool_realloc_flag(PH) \
+ ((pool_safe_realloc_header_t *) pool_header (PH))->flag
+
+typedef struct pool_realloc_rpc_args_
+{
+ void **pool;
+ uword elt_size;
+ uword align;
+} pool_realloc_rpc_args_t;
+
+always_inline void
+pool_program_safe_realloc_rpc (void *args)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ u32 free_elts, max_elts, n_alloc;
+ pool_realloc_rpc_args_t *pra;
+
+ ASSERT (vlib_get_thread_index () == 0);
+ pra = (pool_realloc_rpc_args_t *) args;
+
+ vlib_worker_thread_barrier_sync (vm);
+
+ free_elts = _pool_free_elts (*pra->pool, pra->elt_size);
+ if (free_elts < POOL_REALLOC_SAFE_ELT_THRESH)
+ {
+ max_elts = _vec_max_len (*pra->pool, pra->elt_size);
+ n_alloc = clib_max (2 * max_elts, POOL_REALLOC_SAFE_ELT_THRESH);
+ _pool_alloc (pra->pool, n_alloc, pra->align, 0, pra->elt_size);
+ }
+ pool_realloc_flag (*pra->pool) = 0;
+ clib_mem_free (args);
+
+ vlib_worker_thread_barrier_release (vm);
+}
+
+always_inline void
+pool_program_safe_realloc (void **p, u32 elt_size, u32 align)
+{
+ pool_realloc_rpc_args_t *pra;
+
+ /* Reuse pad as a realloc flag */
+ if (pool_realloc_flag (*p))
+ return;
+
+ pra = clib_mem_alloc (sizeof (*pra));
+ pra->pool = p;
+ pra->elt_size = elt_size;
+ pra->align = align;
+ pool_realloc_flag (*p) = 1;
+
+ session_send_rpc_evt_to_thread (0 /* thread index */,
+ pool_program_safe_realloc_rpc, pra);
+}
+
+#define pool_needs_realloc(P) \
+ ((!P) || \
+ (vec_len (pool_header (P)->free_indices) < POOL_REALLOC_SAFE_ELT_THRESH && \
+ pool_free_elts (P) < POOL_REALLOC_SAFE_ELT_THRESH))
+
+#define pool_get_aligned_safe(P, E, align) \
+ do \
+ { \
+ if (PREDICT_FALSE (pool_needs_realloc (P))) \
+ { \
+ if (PREDICT_FALSE (!(P))) \
+ { \
+ pool_alloc_aligned (P, POOL_REALLOC_SAFE_ELT_THRESH, align); \
+ } \
+ else if (PREDICT_FALSE (!pool_free_elts (P))) \
+ { \
+ vlib_workers_sync (); \
+ pool_alloc_aligned (P, pool_max_len (P), align); \
+ vlib_workers_continue (); \
+ ALWAYS_ASSERT (pool_free_elts (P) > 0); \
+ } \
+ else \
+ { \
+ pool_program_safe_realloc ((void **) &(P), sizeof ((P)[0]), \
+ _vec_align (P, align)); \
+ } \
+ } \
+ pool_get_aligned (P, E, align); \
+ } \
+ while (0)