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Rewrite Windows console input handling

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This change removes our use of ENABLE_VIRTUAL_TERMINAL_INPUT (which
isn't very good) in favor of having read() translate Windows Console
input events to ANSI/XTERM sequences by hand. This makes it possible to
capture important keystrokes (e.g. ctrl-space) that weren't possible
before. Most importantly this change also removes the stdin/sigwinch
worker threads, which never really worked that well. Interactive TTY
sessions will now work reliably when a Cosmo process spawns or forks
another Cosmo process, e.g. unbourne.com launching emacs.com.
This commit is contained in:
Justine Tunney 2023-09-19 11:42:38 -07:00
parent ececec4c94
commit d6c2830850
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
27 changed files with 635 additions and 464 deletions
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12
libc/intrin/describetermios.c
View file

@ -18,6 +18,7 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/termios.h"
#include "libc/calls/struct/termios.internal.h"
#include "libc/calls/ttydefaults.h"
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/intrin/describeflags.internal.h"
@ -119,8 +120,15 @@ const char *(DescribeTermios)(char buf[N], ssize_t rc,
{IEXTEN, "IEXTEN"}, //
{EXTPROC, "EXTPROC"}, //
};
append(", .c_lflag=%s",
DescribeFlags(b128, 128, kLocal, ARRAYLEN(kLocal), "", tio->c_lflag));
append(", "
".c_lflag=%s, "
".c_cc[VMIN]=%d, "
".c_cc[VTIME]=%d, "
".c_cc[VINTR]=CTRL(%#c), "
".c_cc[VQUIT]=CTRL(%#c)",
DescribeFlags(b128, 128, kLocal, ARRAYLEN(kLocal), "", tio->c_lflag),
tio->c_cc[VMIN], tio->c_cc[VTIME], CTRL(tio->c_cc[VINTR]),
CTRL(tio->c_cc[VQUIT]));
append("}");

1
libc/intrin/g_fds.c
View file

@ -119,6 +119,7 @@ textstartup void __init_fds(int argc, char **argv, char **envp) {
}
fds->p[1].flags = O_WRONLY | O_APPEND;
fds->p[2].flags = O_WRONLY | O_APPEND;
__veof = CTRL('D');
__vintr = CTRL('C');
__vquit = CTRL('\\');
}

19
libc/intrin/nomultics.c
View file

@ -18,15 +18,10 @@
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/nomultics.internal.h"
/**
* Controls ANSI prefix for log emissions.
*
* This should be true in raw tty mode repls.
*
* @see kprintf(), vflogf(), linenoise()
*/
char __replmode;
char __replstderr;
char __ttymagic;
char __vintr;
char __vquit;
unsigned char __replmode;
unsigned char __replstderr;
unsigned char __ttymagic;
unsigned char __veof;
unsigned char __vintr;
unsigned char __vquit;
unsigned char __vtime;

13
libc/intrin/nomultics.internal.h
View file

@ -1,13 +1,16 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_NOMULTICS_INTERNAL_H_
#define COSMOPOLITAN_LIBC_INTRIN_NOMULTICS_INTERNAL_H_
#include "libc/calls/struct/timespec.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
extern char __replmode;
extern char __replstderr;
extern char __ttymagic;
extern char __vintr;
extern char __vquit;
extern unsigned char __replmode;
extern unsigned char __replstderr;
extern unsigned char __ttymagic;
extern unsigned char __veof;
extern unsigned char __vintr;
extern unsigned char __vquit;
extern unsigned char __vtime;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */