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sortix--sortix/kernel/logterminal.h

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/*
* Copyright (c) 2012, 2014, 2015, 2016 Jonas 'Sortie' Termansen.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* logterminal.h
* A simple terminal that writes to the kernel log.
*/
#ifndef SORTIX_LOGTERMINAL_H
#define SORTIX_LOGTERMINAL_H
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#include <wchar.h>
#include <sortix/termios.h>
#include <sortix/kernel/kthread.h>
#include <sortix/kernel/inode.h>
#include <sortix/kernel/keyboard.h>
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#include <sortix/kernel/poll.h>
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#include "kb/kblayout.h"
#include "linebuffer.h"
namespace Sortix {
class LogTerminal : public AbstractInode, public KeyboardOwner
{
public:
LogTerminal(dev_t dev, mode_t mode, uid_t owner, gid_t group,
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Keyboard* keyboard, KeyboardLayoutExecutor* kblayout);
virtual ~LogTerminal();
public:
virtual int sync(ioctx_t* ctx);
virtual ssize_t read(ioctx_t* ctx, uint8_t* buf, size_t count);
virtual ssize_t write(ioctx_t* ctx, const uint8_t* buf, size_t count);
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virtual int tcgetwincurpos(ioctx_t* ctx, struct wincurpos* wcp);
virtual int tcgetwinsize(ioctx_t* ctx, struct winsize* ws);
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virtual int tcsetpgrp(ioctx_t* ctx, pid_t pgid);
virtual pid_t tcgetpgrp(ioctx_t* ctx);
virtual int settermmode(ioctx_t* ctx, unsigned termmode);
virtual int gettermmode(ioctx_t* ctx, unsigned* termmode);
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virtual int poll(ioctx_t* ctx, PollNode* node);
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virtual ssize_t tcgetblob(ioctx_t* ctx, const char* name, void* buffer, size_t count);
virtual ssize_t tcsetblob(ioctx_t* ctx, const char* name, const void* buffer, size_t count);
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virtual int tcdrain(ioctx_t* ctx);
virtual int tcflow(ioctx_t* ctx, int action);
virtual int tcflush(ioctx_t* ctx, int queue_selector);
virtual int tcgetattr(ioctx_t* ctx, struct termios* tio);
virtual pid_t tcgetsid(ioctx_t* ctx);
virtual int tcsendbreak(ioctx_t* ctx, int duration);
virtual int tcsetattr(ioctx_t* ctx, int actions, const struct termios* tio);
public:
virtual void OnKeystroke(Keyboard* keyboard, void* user);
private:
void ProcessKeystroke(int kbkey);
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void ProcessString(const char* string);
void ProcessUnicode(uint32_t unicode);
void ProcessByte(unsigned char byte, uint32_t control_unicode = 0);
void CommitLineBuffer();
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short PollEventStatus();
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bool CheckForeground();
bool RequireForeground(int sig);
bool CheckHandledByte(tcflag_t lflags, unsigned char key, unsigned char byte);
private:
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PollChannel poll_channel;
mutable kthread_mutex_t termlock;
kthread_cond_t datacond;
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mbstate_t read_ps;
size_t numeofs;
Keyboard* keyboard;
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KeyboardLayoutExecutor* kblayout;
LineBuffer linebuffer;
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struct termios tio;
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pid_t foreground_pgid;
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int modifiers;
};
} // namespace Sortix
#endif