| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 <assert.h> |
| #include <string.h> |
| #include "os/mynewt.h" |
| |
| SLIST_HEAD(, os_sanity_check) g_os_sanity_check_list = |
| SLIST_HEAD_INITIALIZER(os_sanity_check_list); |
| |
| struct os_mutex g_os_sanity_check_mu; |
| |
| int |
| os_sanity_check_init(struct os_sanity_check *sc) |
| { |
| memset(sc, 0, sizeof(*sc)); |
| |
| return (0); |
| } |
| |
| /** |
| * Lock the sanity check list |
| * |
| * @return 0 on success, error code on failure. |
| */ |
| static int |
| os_sanity_check_list_lock(void) |
| { |
| int rc; |
| |
| if (!g_os_started) { |
| return (0); |
| } |
| |
| rc = os_mutex_pend(&g_os_sanity_check_mu, OS_WAIT_FOREVER); |
| if (rc != OS_OK) { |
| goto err; |
| } |
| |
| return (0); |
| err: |
| return (rc); |
| } |
| |
| /** |
| * Unlock the sanity check list |
| * |
| * @return 0 on success, error code on failure |
| */ |
| static int |
| os_sanity_check_list_unlock(void) |
| { |
| int rc; |
| |
| if (!g_os_started) { |
| return (0); |
| } |
| |
| rc = os_mutex_release(&g_os_sanity_check_mu); |
| if (rc != 0) { |
| goto err; |
| } |
| |
| return (0); |
| err: |
| return (rc); |
| } |
| |
| int |
| os_sanity_task_checkin(struct os_task *t) |
| { |
| int rc; |
| |
| if (t == NULL) { |
| t = os_sched_get_current_task(); |
| } |
| |
| rc = os_sanity_check_reset(&t->t_sanity_check); |
| if (rc != OS_OK) { |
| goto err; |
| } |
| |
| return (0); |
| err: |
| return (rc); |
| } |
| |
| |
| int |
| os_sanity_check_register(struct os_sanity_check *sc) |
| { |
| int rc; |
| |
| rc = os_sanity_check_list_lock(); |
| if (rc != OS_OK) { |
| goto err; |
| } |
| |
| SLIST_INSERT_HEAD(&g_os_sanity_check_list, sc, sc_next); |
| |
| rc = os_sanity_check_list_unlock(); |
| if (rc != OS_OK) { |
| goto err; |
| } |
| |
| return (0); |
| err: |
| return (rc); |
| } |
| |
| |
| int |
| os_sanity_check_reset(struct os_sanity_check *sc) |
| { |
| int rc; |
| |
| rc = os_sanity_check_list_lock(); |
| if (rc != OS_OK) { |
| goto err; |
| } |
| |
| sc->sc_checkin_last = os_time_get(); |
| |
| rc = os_sanity_check_list_unlock(); |
| if (rc != OS_OK) { |
| goto err; |
| } |
| |
| return (0); |
| err: |
| return (rc); |
| } |
| |
| /* |
| * Called from the IDLE task context, every MYNEWT_VAL(SANITY_INTERVAL) msecs. |
| * |
| * Goes through the sanity check list, and performs sanity checks. If any of |
| * these checks failed, or tasks have not checked in, it resets the processor. |
| */ |
| void |
| os_sanity_run(void) |
| { |
| struct os_sanity_check *sc; |
| int rc; |
| |
| rc = os_sanity_check_list_lock(); |
| if (rc != 0) { |
| assert(0); |
| } |
| |
| SLIST_FOREACH(sc, &g_os_sanity_check_list, sc_next) { |
| rc = OS_OK; |
| |
| if (sc->sc_func) { |
| rc = sc->sc_func(sc, sc->sc_arg); |
| if (rc == OS_OK) { |
| sc->sc_checkin_last = os_time_get(); |
| continue; |
| } |
| } |
| |
| if (OS_TIME_TICK_GT(os_time_get(), |
| sc->sc_checkin_last + sc->sc_checkin_itvl)) { |
| assert(0); |
| } |
| } |
| |
| rc = os_sanity_check_list_unlock(); |
| if (rc != 0) { |
| assert(0); |
| } |
| } |
| |
| int |
| os_sanity_init(void) |
| { |
| int rc; |
| |
| rc = os_mutex_init(&g_os_sanity_check_mu); |
| if (rc != 0) { |
| goto err; |
| } |
| |
| return (0); |
| err: |
| return (rc); |
| } |
| |