cosmopolitan/libc/calls/struct/fd.internal.h
Justine Tunney d6c2830850
Rewrite Windows console input handling
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.
2023-09-19 11:53:27 -07:00

64 lines
1.6 KiB
C

#ifndef COSMOPOLITAN_LIBC_CALLS_STRUCT_FD_INTERNAL_H_
#define COSMOPOLITAN_LIBC_CALLS_STRUCT_FD_INTERNAL_H_
#include "libc/nt/struct/overlapped.h"
#include "libc/thread/thread.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define DO_NOTHING 0
#define DO_RESTART 1
#define DO_EINTR 2
#define kFdEmpty 0
#define kFdFile 1
#define kFdSocket 2
#define kFdProcess 3
#define kFdConsole 4
#define kFdSerial 5
#define kFdZip 6
#define kFdEpoll 7
#define kFdReserved 8
#define kFdTtyEchoing 1 /* read()→write() (ECHO && !ICANON) */
#define kFdTtyEchoRaw 2 /* don't ^X visualize control codes */
#define kFdTtyMunging 4 /* enable input / output remappings */
#define kFdTtyNoCr2Nl 8 /* don't map \r → \n (a.k.a !ICRNL) */
#define kFdTtyNoIsigs 16
#define kFdTtyNoBlock 32
#define kFdTtyXtMouse 64
struct Fd {
char kind;
bool eoftty;
bool dontclose;
unsigned char buflen;
unsigned flags;
unsigned mode;
int64_t handle;
int64_t extra;
int64_t pointer;
pthread_mutex_t lock;
unsigned char mousebuttons;
char buf[32];
};
struct StdinRelay {
_Atomic(uint32_t) once;
int64_t inisem; /* semaphore to delay 1st read */
int64_t handle; /* should == g_fds.p[0].handle */
int64_t reader; /* ReadFile() use this instead */
int64_t writer; /* only used by WinStdinThread */
int64_t thread; /* handle for the stdio thread */
struct NtOverlapped overlap;
};
struct Fds {
_Atomic(int) f; /* lowest free slot */
size_t n;
struct Fd *p, *e;
struct StdinRelay stdin;
};
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_FD_INTERNAL_H_ */