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Add poll support to log terminal.

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This commit is contained in:
Jonas 'Sortie' Termansen 2012-12-29 23:09:24 +01:00
parent b2b55bc34a
commit 51da410dea
2 changed files with 33 additions and 0 deletions
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29
sortix/logterminal.cpp
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@ -29,11 +29,15 @@
#include <sortix/kernel/ioctx.h>
#include <sortix/kernel/inode.h>
#include <sortix/kernel/keyboard.h>
#include <sortix/kernel/poll.h>
#include <sortix/termmode.h>
#include <sortix/termios.h>
#include <sortix/keycodes.h>
#include <sortix/signal.h>
#include <sortix/stat.h>
#include <sortix/poll.h>
#include <errno.h>
#include <string.h>
#include "utf8.h"
@ -155,6 +159,7 @@ void LogTerminal::ProcessKeystroke(int kbkey)
numeofs++;
if ( numwaiting )
kthread_cond_broadcast(&datacond);
poll_channel.Signal(POLLIN | POLLRDNORM);
}
return;
}
@ -219,6 +224,7 @@ void LogTerminal::CommitLineBuffer()
linebuffer.Commit();
if ( numwaiting )
kthread_cond_broadcast(&datacond);
poll_channel.Signal(POLLIN | POLLRDNORM);
}
ssize_t LogTerminal::read(ioctx_t* ctx, uint8_t* userbuf, size_t count)
@ -313,4 +319,27 @@ ssize_t LogTerminal::write(ioctx_t* ctx, const uint8_t* buf, size_t count)
return count;
}
short LogTerminal::PollEventStatus()
{
short status = 0;
if ( linebuffer.CanPop() || numeofs )
status |= POLLIN | POLLRDNORM;
if ( true /* can always write */ )
status |= POLLOUT | POLLWRNORM;
return status;
}
int LogTerminal::poll(ioctx_t* /*ctx*/, PollNode* node)
{
ScopedLockSignal lock(&termlock);
short ret_status = PollEventStatus() & node->events;
if ( ret_status )
{
node->revents |= ret_status;
return 0;
}
poll_channel.Register(node);
return errno = EAGAIN, -1;
}
} // namespace Sortix

4
sortix/logterminal.h
View file

@ -28,6 +28,7 @@
#include <sortix/kernel/kthread.h>
#include <sortix/kernel/inode.h>
#include <sortix/kernel/keyboard.h>
#include <sortix/kernel/poll.h>
#include "linebuffer.h"
namespace Sortix {
@ -46,6 +47,7 @@ public:
virtual int tcgetwinsize(ioctx_t* ctx, struct winsize* ws);
virtual int settermmode(ioctx_t* ctx, unsigned termmode);
virtual int gettermmode(ioctx_t* ctx, unsigned* termmode);
virtual int poll(ioctx_t* ctx, PollNode* node);
public:
virtual void OnKeystroke(Keyboard* keyboard, void* user);
@ -54,8 +56,10 @@ private:
void ProcessKeystroke(int kbkey);
void QueueUnicode(uint32_t unicode);
void CommitLineBuffer();
short PollEventStatus();
private:
PollChannel poll_channel;
mutable kthread_mutex_t termlock;
kthread_cond_t datacond;
size_t numwaiting;