/* * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vnet/util/refcount.h> void __vlib_refcount_resize(vlib_refcount_per_cpu_t *per_cpu, u32 size) { u32 *new_counter = 0, *old_counter; vec_validate(new_counter, size); vlib_refcount_lock(per_cpu->counter_lock); memcpy(new_counter, per_cpu->counters, vec_len(per_cpu->counters)*4); old_counter = per_cpu->counters; per_cpu->counters = new_counter; vlib_refcount_unlock(per_cpu->counter_lock); CLIB_MEMORY_BARRIER(); vec_free(old_counter); } u64 vlib_refcount_get(vlib_refcount_t *r, u32 index) { u64 count = 0; vlib_thread_main_t *tm = vlib_get_thread_main (); u32 thread_index; for (thread_index = 0; thread_index < tm->n_vlib_mains; thread_index++) { vlib_refcount_lock(r->per_cpu[thread_index].counter_lock); if (index < vec_len(r->per_cpu[thread_index].counters)) { count += r->per_cpu[thread_index].counters[index]; } vlib_refcount_unlock(r->per_cpu[thread_index].counter_lock); } return count; }