esp-idf/components/app_trace/sys_view/ext/logging.c

27 wiersze
733 B
C

/*
* SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdio.h>
#include <stdarg.h>
#include <sdkconfig.h>
#include "SEGGER_SYSVIEW_Int.h"
#include "freertos/FreeRTOS.h"
static portMUX_TYPE s_log_mutex = portMUX_INITIALIZER_UNLOCKED;
int esp_sysview_vprintf(const char * format, va_list args)
{
static char log_buffer[SEGGER_SYSVIEW_MAX_STRING_LEN];
portENTER_CRITICAL(&s_log_mutex);
size_t len = vsnprintf(log_buffer, sizeof(log_buffer), format, args);
if (len > sizeof(log_buffer) - 1) {
log_buffer[sizeof(log_buffer - 1)] = 0;
}
SEGGER_SYSVIEW_Print(log_buffer);
portEXIT_CRITICAL(&s_log_mutex);
return len;
}