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platform/mbed_error_hist.c
- Committer:
- kevman
- Date:
- 2019-03-13
- Revision:
- 2:7aab896b1a3b
- Parent:
- 0:38ceb79fef03
File content as of revision 2:7aab896b1a3b:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * 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 <stdlib.h> #include <stdarg.h> #include "device.h" #include "platform/mbed_error.h" #include "platform/mbed_toolchain.h" #include "platform/mbed_critical.h" #include "platform/mbed_interface.h" #if MBED_CONF_PLATFORM_ERROR_HIST_ENABLED #include "platform/mbed_error_hist.h" static mbed_error_ctx mbed_error_ctx_log[MBED_CONF_PLATFORM_ERROR_HIST_SIZE] = {0}; static int error_log_count = -1; mbed_error_status_t mbed_error_hist_put(mbed_error_ctx *error_ctx) { //Return error if error_ctx is NULL if (NULL == error_ctx) { return MBED_ERROR_INVALID_ARGUMENT; } core_util_critical_section_enter(); error_log_count++; memcpy(&mbed_error_ctx_log[error_log_count % MBED_CONF_PLATFORM_ERROR_HIST_SIZE], error_ctx, sizeof(mbed_error_ctx)); core_util_critical_section_exit(); return MBED_SUCCESS; } mbed_error_status_t mbed_error_hist_get(int index, mbed_error_ctx *error_ctx) { //Return error if index is more than max log size if (index >= MBED_CONF_PLATFORM_ERROR_HIST_SIZE) { return MBED_ERROR_INVALID_ARGUMENT; } core_util_critical_section_enter(); //calculate the index where we want to pick the ctx if (error_log_count >= MBED_CONF_PLATFORM_ERROR_HIST_SIZE) { index = (error_log_count + index + 1) % MBED_CONF_PLATFORM_ERROR_HIST_SIZE; } core_util_critical_section_exit(); memcpy(error_ctx, &mbed_error_ctx_log[index % MBED_CONF_PLATFORM_ERROR_HIST_SIZE], sizeof(mbed_error_ctx)); return MBED_SUCCESS; } mbed_error_ctx *mbed_error_hist_get_entry(void) { core_util_critical_section_enter(); error_log_count++; mbed_error_ctx *ctx = &mbed_error_ctx_log[error_log_count % MBED_CONF_PLATFORM_ERROR_HIST_SIZE]; core_util_critical_section_exit(); return ctx; } mbed_error_status_t mbed_error_hist_get_last_error(mbed_error_ctx *error_ctx) { if (-1 == error_log_count) { return MBED_ERROR_ITEM_NOT_FOUND; } core_util_critical_section_enter(); memcpy(error_ctx, &mbed_error_ctx_log[error_log_count % MBED_CONF_PLATFORM_ERROR_HIST_SIZE], sizeof(mbed_error_ctx)); core_util_critical_section_exit(); return MBED_SUCCESS; } int mbed_error_hist_get_count() { return (error_log_count >= MBED_CONF_PLATFORM_ERROR_HIST_SIZE ? MBED_CONF_PLATFORM_ERROR_HIST_SIZE : error_log_count + 1); } mbed_error_status_t mbed_error_hist_reset() { core_util_critical_section_enter(); error_log_count = -1; core_util_critical_section_exit(); return MBED_SUCCESS; } #endif