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Split out tty and shared_info stuff into their own headers and use throughout.

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Include sys/termios.h for files which need it.
* tty.h: New file.
* shared_info.h: New file.
* fhandler.h: Move inline methods that rely on tty stuff to
fhandler_console.cc.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output): Set
output_done_event immediately after reading data to speed up tty output
processing.
(process_output): Set write_error to errno or zero.
(fhandler_tty_slave::write): Check previous write error prior to writing to
slave end of pipe.  This allows tty output to be slightly less synchronous.
* fhandler_console.cc (fhandler_console::tcsetpgrp): Moved here from
fhandler.h.
(fhandler_console::set_input_state): Ditto.
This commit is contained in:
Christopher Faylor
2000-09-07 16:23:51 +00:00
parent c1644acb23
commit 29ac7f89e3
24 changed files with 371 additions and 307 deletions
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39
winsup/cygwin/fhandler_tty.cc
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@ -23,6 +23,8 @@ details. */
#include "sigproc.h"
#include "pinfo.h"
#include "cygheap.h"
#include "tty.h"
#include "shared_info.h"
/* Tty master stuff */
@ -285,14 +287,12 @@ fhandler_pty_master::process_slave_output (char *buf, size_t len, int pktmode_on
}
termios_printf ("bytes read %u", n);
get_ttyp ()->write_error = 0;
if (output_done_event != NULL)
SetEvent (output_done_event);
if (get_ttyp ()->ti.c_lflag & FLUSHO)
{
get_ttyp ()->write_retval = n;
if (output_done_event != NULL)
SetEvent (output_done_event);
continue;
}
continue;
char *optr;
optr = buf;
@ -389,8 +389,7 @@ process_output (void *)
ExitThread (0);
}
n = tty_master->console->write ((void *) buf, (size_t) n);
tty_master->get_ttyp ()->write_retval = n == -1 ? -get_errno () : n;
SetEvent (tty_master->output_done_event);
tty_master->get_ttyp ()->write_error = n == -1 ? get_errno () : 0;
}
}
@ -554,6 +553,16 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
ptr = (char *) ptr + n;
len -= n;
/* Previous write may have set write_error to != 0. Check it here.
This is less than optimal, but the alternative slows down tty
writes enormously. */
if (get_ttyp ()->write_error)
{
set_errno (get_ttyp ()->write_error);
towrite = (DWORD) -1;
break;
}
if (WriteFile (get_output_handle (), buf, n, &n, NULL) == FALSE)
{
DWORD err = GetLastError ();
@ -577,13 +586,6 @@ fhandler_tty_slave::write (const void *ptr, size_t len)
rc = WaitForSingleObject (output_done_event, x);
termios_printf("waited %d ms for output_done_event, WFSO %d", x, rc);
}
if (get_ttyp ()->write_retval < 0)
{
set_errno (-get_ttyp ()->write_retval);
towrite = (DWORD) -1;
break;
}
}
release_output_mutex ();
return towrite;
@ -931,12 +933,7 @@ fhandler_pty_master::write (const void *ptr, size_t len)
int
fhandler_pty_master::read (void *ptr, size_t len)
{
int x = process_slave_output ((char *) ptr, len, pktmode);
if (output_done_event != NULL)
SetEvent (output_done_event);
return x;
return process_slave_output ((char *) ptr, len, pktmode);
}
int