OVMS3-idf/components/log/log_buffers.c

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// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// 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 <stdio.h>
#include <ctype.h>
#include <string.h>
#include "esp_log.h"
#include "soc/soc_memory_layout.h" // for esp_ptr_byte_accessible
//print number of bytes per line for esp_log_buffer_char and esp_log_buffer_hex
#define BYTES_PER_LINE 16
void esp_log_buffer_hex_internal(const char *tag, const void *buffer, uint16_t buff_len,
esp_log_level_t log_level)
{
if (buff_len == 0) {
return;
}
char temp_buffer[BYTES_PER_LINE + 3]; //for not-byte-accessible memory
char hex_buffer[3 * BYTES_PER_LINE + 1];
const char *ptr_line;
int bytes_cur_line;
do {
if (buff_len > BYTES_PER_LINE) {
bytes_cur_line = BYTES_PER_LINE;
} else {
bytes_cur_line = buff_len;
}
if (!esp_ptr_byte_accessible(buffer)) {
//use memcpy to get around alignment issue
memcpy(temp_buffer, buffer, (bytes_cur_line + 3) / 4 * 4);
ptr_line = temp_buffer;
} else {
ptr_line = buffer;
}
for (int i = 0; i < bytes_cur_line; i ++) {
sprintf(hex_buffer + 3 * i, "%02x ", ptr_line[i]);
}
ESP_LOG_LEVEL(log_level, tag, "%s", hex_buffer);
buffer += bytes_cur_line;
buff_len -= bytes_cur_line;
} while (buff_len);
}
void esp_log_buffer_char_internal(const char *tag, const void *buffer, uint16_t buff_len,
esp_log_level_t log_level)
{
if (buff_len == 0) {
return;
}
char temp_buffer[BYTES_PER_LINE + 3]; //for not-byte-accessible memory
char char_buffer[BYTES_PER_LINE + 1];
const char *ptr_line;
int bytes_cur_line;
do {
if (buff_len > BYTES_PER_LINE) {
bytes_cur_line = BYTES_PER_LINE;
} else {
bytes_cur_line = buff_len;
}
if (!esp_ptr_byte_accessible(buffer)) {
//use memcpy to get around alignment issue
memcpy(temp_buffer, buffer, (bytes_cur_line + 3) / 4 * 4);
ptr_line = temp_buffer;
} else {
ptr_line = buffer;
}
for (int i = 0; i < bytes_cur_line; i ++) {
sprintf(char_buffer + i, "%c", ptr_line[i]);
}
ESP_LOG_LEVEL(log_level, tag, "%s", char_buffer);
buffer += bytes_cur_line;
buff_len -= bytes_cur_line;
} while (buff_len);
}
void esp_log_buffer_hexdump_internal(const char *tag, const void *buffer, uint16_t buff_len, esp_log_level_t log_level)
{
if (buff_len == 0) {
return;
}
char temp_buffer[BYTES_PER_LINE + 3]; //for not-byte-accessible memory
const char *ptr_line;
//format: field[length]
// ADDR[10]+" "+DATA_HEX[8*3]+" "+DATA_HEX[8*3]+" |"+DATA_CHAR[8]+"|"
char hd_buffer[10 + 3 + BYTES_PER_LINE * 3 + 3 + BYTES_PER_LINE + 1 + 1];
char *ptr_hd;
int bytes_cur_line;
do {
if (buff_len > BYTES_PER_LINE) {
bytes_cur_line = BYTES_PER_LINE;
} else {
bytes_cur_line = buff_len;
}
if (!esp_ptr_byte_accessible(buffer)) {
//use memcpy to get around alignment issue
memcpy(temp_buffer, buffer, (bytes_cur_line + 3) / 4 * 4);
ptr_line = temp_buffer;
} else {
ptr_line = buffer;
}
ptr_hd = hd_buffer;
ptr_hd += sprintf(ptr_hd, "%p ", buffer);
for (int i = 0; i < BYTES_PER_LINE; i ++) {
if ((i & 7) == 0) {
ptr_hd += sprintf(ptr_hd, " ");
}
if (i < bytes_cur_line) {
ptr_hd += sprintf(ptr_hd, " %02x", ptr_line[i]);
} else {
ptr_hd += sprintf(ptr_hd, " ");
}
}
ptr_hd += sprintf(ptr_hd, " |");
for (int i = 0; i < bytes_cur_line; i ++) {
if (isprint((int)ptr_line[i])) {
ptr_hd += sprintf(ptr_hd, "%c", ptr_line[i]);
} else {
ptr_hd += sprintf(ptr_hd, ".");
}
}
ptr_hd += sprintf(ptr_hd, "|");
ESP_LOG_LEVEL(log_level, tag, "%s", hd_buffer);
buffer += bytes_cur_line;
buff_len -= bytes_cur_line;
} while (buff_len);
}