ladybird/Kernel/kprintf.cpp
Andreas Kling 60d25f0f4a Kernel: Introduce threads, and refactor everything in support of it.
The scheduler now operates on threads, rather than on processes.
Each process has a main thread, and can have any number of additional
threads. The process exits when the main thread exits.

This patch doesn't actually spawn any additional threads, it merely
does all the plumbing needed to make it possible. :^)
2019-03-23 22:03:17 +01:00

55 lines
1.0 KiB
C++

#include "kprintf.h"
#include "Console.h"
#include "IO.h"
#include <LibC/stdarg.h>
#include "Process.h"
#include <AK/Types.h>
#include <AK/printf.cpp>
static void console_putch(char*&, char ch)
{
if (!current) {
IO::out8(0xe9, ch);
return;
}
Console::the().write(current->process(), (byte*)&ch, 1);
}
int kprintf(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int ret = printf_internal(console_putch, nullptr, fmt, ap);
va_end(ap);
return ret;
}
static void buffer_putch(char*& bufptr, char ch)
{
*bufptr++ = ch;
}
int ksprintf(char* buffer, const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int ret = printf_internal(buffer_putch, buffer, fmt, ap);
buffer[ret] = '\0';
va_end(ap);
return ret;
}
static void debugger_putch(char*&, char ch)
{
IO::out8(0xe9, ch);
}
extern "C" int dbgprintf(const char* fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int ret = printf_internal(debugger_putch, nullptr, fmt, ap);
va_end(ap);
return ret;
}