/* * Copyright (c) 2015 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. */ /* * init.c: mechanism for functions to be called at init/exit. * * Copyright (c) 2008 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include <vlib/vlib.h> clib_error_t * vlib_call_init_exit_functions (vlib_main_t * vm, _vlib_init_function_list_elt_t * head, int call_once) { clib_error_t *error = 0; _vlib_init_function_list_elt_t *i; i = head; while (i) { if (call_once && !hash_get (vm->init_functions_called, i->f)) { if (call_once) hash_set1 (vm->init_functions_called, i->f); error = i->f (vm); if (error) return error; } i = i->next_init_function; } return error; } clib_error_t * vlib_call_all_init_functions (vlib_main_t * vm) { /* Call dummy functions to make sure purely static modules are linked in. */ #define _(f) vlib_##f##_reference (); foreach_vlib_module_reference; #undef _ return vlib_call_init_exit_functions (vm, vm->init_function_registrations, 1 /* call_once */ ); } clib_error_t * vlib_call_all_main_loop_enter_functions (vlib_main_t * vm) { return vlib_call_init_exit_functions (vm, vm->main_loop_enter_function_registrations, 1 /* call_once */ ); } clib_error_t * vlib_call_all_main_loop_exit_functions (vlib_main_t * vm) { return vlib_call_init_exit_functions (vm, vm->main_loop_exit_function_registrations, 1 /* call_once */ ); } clib_error_t * vlib_call_all_config_functions (vlib_main_t * vm, unformat_input_t * input, int is_early) { clib_error_t *error = 0; vlib_config_function_runtime_t *c, **all; uword *hash = 0, *p; uword i; hash = hash_create_string (0, sizeof (uword)); all = 0; c = vm->config_function_registrations; while (c) { hash_set_mem (hash, c->name, vec_len (all)); vec_add1 (all, c); unformat_init (&c->input, 0, 0); c = c->next_registration; } while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { u8 *s, *v; if (!unformat (input, "%s %v", &s, &v) || !(p = hash_get_mem (hash, s))) { error = clib_error_create ("unknown input `%s %v'", s, v); goto done; } c = all[p[0]]; if (vec_len (c->input.buffer) > 0) vec_add1 (c->input.buffer, ' '); vec_add (c->input.buffer, v, vec_len (v)); vec_free (v); vec_free (s); } for (i = 0; i < vec_len (all); i++) { c = all[i]; /* Is this an early config? Are we doing early configs? */ if (is_early ^ c->is_early) continue; /* Already called? */ if (hash_get (vm->init_functions_called, c->function)) continue; hash_set1 (vm->init_functions_called, c->function); error = c->function (vm, &c->input); if (error) goto done; } done: for (i = 0; i < vec_len (all); i++) { c = all[i]; unformat_free (&c->input); } vec_free (all); hash_free (hash); return error; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */