debug_console.h

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/*
 * Copyright (c) 2024 ykat UG (haftungsbeschraenkt) - All Rights Reserved
 *
 * Permission for non-commercial use is hereby granted,
 * free of charge, without warranty of any kind.
 */
#ifndef ZRTOS_DEBUG_CONSOLE_H
#define ZRTOS_DEBUG_CONSOLE_H
#ifdef __cplusplus
extern "C" {
#endif

#ifdef ZRTOS_DEBUG__CFG_ENABLED

#include <zrtos/types.h>
#include <zrtos/str.h>

#define ZRTOS_DEBUG_CONSOLE__INIT(name,length)\
    uint8_t name##_buffer[length];\
    zrtos_debug_console_t name = {\
         .buffer = name##_buffer\
        ,.ptr = name##_buffer\
        ,.buffer_length = sizeof(name##_buffer)/sizeof(name##_buffer[0])\
    };

typedef struct _zrtos_debug_console_t{
    uint8_t *buffer;
    uint8_t *ptr;
    size_t buffer_length;
}zrtos_debug_console_t;

void zrtos_debug_console__put_char(zrtos_debug_console_t *thiz,char c){
    if(thiz->ptr > thiz->buffer + thiz->buffer_length){
        thiz->ptr = thiz->buffer;
    }
    *thiz->ptr++ = c;
}

static void zrtos_debug_console__printf_callback(void *args,char c){
    zrtos_debug_console__put_char((zrtos_debug_console_t *)args,c);
}

void zrtos_debug_console__printf(
     zrtos_debug_console_t *thiz
    ,char const *fmt
    ,...
){
    va_list arg;
    va_start(arg, fmt);
    zrtos_str__vsnprintf_internal(
         zrtos_debug_console__printf_callback
        ,(void*)thiz
        ,fmt
        ,arg
    );
    va_end(arg);
}

#endif

#ifdef __cplusplus
}
#endif
#endif