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/*
* LogCommand.cpp
*
* Created on: Jul 8, 2021
* Author: Andreas Berthoud
*/
#include <stdarg.h>
#include <string.h>
#include <string>
#include "usbd_cdc_if.h"
#include "LogCommand.hpp"
void log_debug(const char * format, int nargs, ...) {
va_list args;
va_start(args, nargs);
push_command(new LogCommand(format, args, LOG_LEVEL_DEBUG));
va_end(args);
}
void log_info(const char * format, int nargs, ...) {
va_list args;
va_start(args, nargs);
push_command(new LogCommand(format, args, LOG_LEVEL_INFO));
va_end(args);
}
void log_warning(const char * format, int nargs, ...) {
va_list args;
va_start(args, nargs);
push_command(new LogCommand(format, args, LOG_LEVEL_WARNING));
va_end(args);
}
void log_error(const char * format, int nargs, ...) {
va_list args;
va_start(args, nargs);
push_command(new LogCommand(format, args, LOG_LEVEL_ERROR));
va_end(args);
}
LogCommand::LogCommand(const char * format, va_list args, LoggingLevel logging_level) : Command(COMMAND_LOG) {
*this->payload_ptr = logging_level;
vsnprintf((char *)this->payload_ptr + 1, this->max_payload_length - 1, format, args);
this->set_payload_length(strlen((char *)this->payload_ptr) + 1); // strlen + log level
}
bool LogCommand::execute() {
uint16_t size = this->get_payload_length() + 5; // number of bytes to be sent over USB
this->data[size-1] = 0xff; // set stop byte
uint8_t result = CDC_Transmit_FS(this->data, size);
return result == USBD_OK || result == USBD_BUSY;
}