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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/ne-foss-org/nekernel
#ifndef KERNELKIT_DEBUGOUTPUT_H
#define KERNELKIT_DEBUGOUTPUT_H
#include <CompilerKit/CompilerKit.h>
#include <KernelKit/DeviceMgr.h>
#include <NeKit/OwnPtr.h>
#include <NeKit/Stream.h>
#include <NeKit/Utils.h>
namespace Kernel {
class TerminalDevice;
class DTraceDevice;
class NeTraceDevice;
class Utf8TerminalDevice;
inline TerminalDevice end_line();
inline TerminalDevice number(const Long& x);
inline TerminalDevice hex_number(const Long& x);
// @brief Emulates a VT100 terminal.
class TerminalDevice final NE_DEVICE<const Char*> {
public:
TerminalDevice(void (*print)(IDevice*, const Char*), void (*gets)(IDevice*, const Char*))
: IDevice<const Char*>(print, gets) {}
~TerminalDevice() override;
/// @brief returns device name (terminal name)
/// @return string type (const Char*)
const Char* Name() const override { return ("TerminalDevice"); }
NE_COPY_DEFAULT(TerminalDevice)
STATIC TerminalDevice The();
};
class Utf8TerminalDevice final NE_DEVICE<const Utf8Char*> {
public:
Utf8TerminalDevice(void (*print)(IDevice*, const Utf8Char*),
void (*gets)(IDevice*, const Utf8Char*))
: IDevice<const Utf8Char*>(print, gets) {}
~Utf8TerminalDevice() override;
/// @brief returns device name (terminal name)
/// @return string type (const Char*)
const Char* Name() const override { return ("Utf8TerminalDevice"); }
NE_COPY_DEFAULT(Utf8TerminalDevice)
STATIC Utf8TerminalDevice The();
};
inline TerminalDevice end_line() {
TerminalDevice self = TerminalDevice::The();
self.operator<<("\r");
return self;
}
inline Utf8TerminalDevice utf_end_line() {
Utf8TerminalDevice self = Utf8TerminalDevice::The();
self.operator<<(u8"\r");
return self;
}
inline TerminalDevice carriage_return() {
TerminalDevice self = TerminalDevice::The();
self.operator<<("\r");
return self;
}
inline TerminalDevice tabulate() {
TerminalDevice self = TerminalDevice::The();
self.operator<<("\t");
return self;
}
/// @brief emulate a terminal bell, like the VT100 does.
inline TerminalDevice bell() {
TerminalDevice self = TerminalDevice::The();
self.operator<<("\a");
return self;
}
namespace Detail {
inline TerminalDevice _write_number(const Long& x, TerminalDevice& term) {
UInt64 y = (x > 0 ? x : -x) / 10;
UInt64 h = (x > 0 ? x : -x) % 10;
if (y) _write_number(y, term);
/* fail if the number is not base-10 */
if (h > 10) {
_write_number('?', term);
return term;
}
if (y == ~0UL) y = -y;
const Char kNumbers[11] = "0123456789";
Char buf[2];
buf[0] = kNumbers[h];
buf[1] = 0;
term.operator<<(buf);
return term;
}
inline TerminalDevice _write_number_hex(const Long& x, TerminalDevice& term) {
UInt64 y = (x > 0 ? x : -x) / 16;
UInt64 h = (x > 0 ? x : -x) % 16;
if (y) _write_number_hex(y, term);
/* fail if the hex number is not base-16 */
if (h > 16) {
_write_number_hex('?', term);
return term;
}
if (y == ~0UL) y = -y;
const Char kNumbers[17] = "0123456789ABCDEF";
Char buf[2];
buf[0] = kNumbers[h];
buf[1] = 0;
term.operator<<(buf);
return term;
}
} // namespace Detail
inline TerminalDevice hex_number(const Long& x) {
TerminalDevice self = TerminalDevice::The();
self << "0x";
Detail::_write_number_hex(x, self);
return self;
}
inline TerminalDevice number(const Long& x) {
TerminalDevice self = TerminalDevice::The();
Detail::_write_number(x, self);
return self;
}
inline TerminalDevice get_console_in(Char* buf) {
TerminalDevice self = TerminalDevice::The();
self >> buf;
return self;
}
inline constexpr auto kDebugPort = 51820;
inline constexpr auto kDebugMagic = "VMK1.0.0;";
inline constexpr auto kDebugVersion = 0x0100;
inline constexpr SizeT kDebugCmdLen = 256U;
typedef Char rt_debug_cmd[kDebugCmdLen];
inline TerminalDevice& operator<<(TerminalDevice& src, const Long& num) {
src = number(num);
return src;
}
} // namespace Kernel
#ifdef kout
#undef kout
#endif // ifdef kout
#define kout TerminalDevice::The()
#ifdef kendl
#undef kendl
#endif // ifdef kendl
#define kendl end_line()
#ifdef kout8
#undef kout8
#endif // ifdef kout8
#define kout8 Utf8TerminalDevice::The()
#ifdef kendl8
#undef kendl8
#endif // ifdef kendl8
#define kendl8 utf_end_line()
#endif
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