Luna/kernel/src/arch/Serial.cpp

#include "arch/Serial.h"
#include <luna/Format.h>
#include <luna/Result.h>
#include <stdarg.h>

namespace Serial
{
    void write(const char* str, usize size)
    {
        while (size--) putchar((u8)*str++);
    }

    void print(const char* str)
    {
        while (*str) putchar((u8)*str++);
    }

    void println(const char* str)
    {
        print(str);
        putchar('\n');
    }

    usize printf(const char* format, ...)
    {
        va_list ap;
        va_start(ap, format);
        auto rc = cstyle_format(
                      format,
                      [](char c, void*) -> Result<void> {
                          putchar((u8)c);
                          return {};
                      },
                      nullptr, ap)
                      .expect_value("Sanity check failed in Serial::printf: Should never fail");
        va_end(ap);
        return rc;
    }
}