can_wizard/main/xvprintf.c

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#include "xvprintf.h"
#include <stdarg.h>
#include <stdio.h>
#include "stdbool.h"
#include "esp_log.h"
RingbufHandle_t can_messages;
void init_tx_ringbuf() {
can_messages = xRingbufferCreate(1028, RINGBUF_TYPE_NOSPLIT);
esp_log_set_vprintf(&xvprintf);
}
// This function will be called by the ESP log library every time ESP_LOG needs to be performed.
// @important Do NOT use the ESP_LOG* macro's in this function ELSE recursive loop and stack overflow! So use printf() instead for debug messages.
int xvprintf(const char *fmt, va_list args) {
char msg_to_send[500];
size_t str_len;
str_len = snprintf(msg_to_send, 499, fmt, va_arg(args, int), va_arg(args, char *));
va_end(args);
xRingbufferSend(can_messages, msg_to_send, str_len + 1, pdMS_TO_TICKS(100));
return str_len;
}
int xprintf(const char *fmt, ...) {
va_list(args);
va_start(args, fmt);
return xvprintf(fmt, args);
}