3D_Renderer/logger.cpp at master · 45Hack45/3D_Renderer · GitHub

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/**
 * This file implements the Logging API specified in logger.h.
 */

#include <assert.h>
#include <stdarg.h>
#include <stdio.h>

#include "logger.h"

static enum log_level_e current_log_level = LOG_INFO; ///< Global variable defining the current log level.

void set_log_level(const enum log_level_e log_level) {
	assert(log_level >= LOG_NONE);

	current_log_level = log_level;
}

void log_message(const enum log_level_e log_level, const char* const message) {
	assert(log_level > LOG_NONE);
	assert(message != NULL);

	if (log_level > current_log_level) {
		return;
	}

	(void)fprintf(stderr, "%s\n", message);
}

void log_error(const char* const message) {
	log_message(log_level_e::LOG_INFO, message);
}

void log_printf(const enum log_level_e log_level, const char* const format, ...) {
	assert(log_level > LOG_NONE);
	assert(format != NULL);

	if (log_level > current_log_level) {
		return;
	}

	va_list ap;

	va_start(ap, format);
	(void)vfprintf(stderr, format, ap);
	va_end(ap);

	(void)fputs("\n", stderr);
}

void log_printf_info(const char* const format, ...) {
	va_list ap;

	va_start(ap, format);
	(void)vfprintf(stderr, format, ap);
	va_end(ap);

	(void)fputs("\n", stderr);
}

void log_printf_debug(const char* const format, ...) {

	if (log_level_e::LOG_DEBUG > current_log_level) {
		return;
	}

	va_list ap;

	va_start(ap, format);
	(void)vfprintf(stderr, format, ap);
	va_end(ap);

	(void)fputs("\n", stderr);
}