cosmopolitan/libc/calls/g_fds.c
Justine Tunney 933411ba99 Improve synchronization
- Fix bugs in kDos2Errno definition
- malloc() should now be thread safe
- Fix bug in rollup.com header generator
- Fix open(O_APPEND) on the New Technology
- Fix select() on the New Technology and test it
- Work towards refactoring i/o for thread safety
- Socket reads and writes on NT now poll for signals
- Work towards i/o completion ports on the New Technology
- Make read() and write() intermittently check for signals
- Blinkenlights keyboard i/o so much better on NT w/ poll()
- You can now poll() files and sockets at the same time on NT
- Fix bug in appendr() that manifests with dlmalloc footers off
2022-04-15 15:31:55 -07:00

51 lines
2.9 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or 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. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/bits/pushpop.h"
#include "libc/calls/internal.h"
#include "libc/calls/strace.internal.h"
#include "libc/nt/runtime.h"
STATIC_YOINK("_init_g_fds");
struct Fds g_fds;
_Alignas(64) char __fds_lock;
textstartup void InitializeFileDescriptors(void) {
struct Fds *fds;
fds = VEIL("r", &g_fds);
pushmov(&fds->n, ARRAYLEN(fds->__init_p));
fds->p = fds->__init_p;
if (IsMetal()) {
pushmov(&fds->f, 3ull);
fds->__init_p[0].kind = pushpop(kFdSerial);
fds->__init_p[1].kind = pushpop(kFdSerial);
fds->__init_p[2].kind = pushpop(kFdSerial);
fds->__init_p[0].handle = VEIL("r", 0x3F8ull);
fds->__init_p[1].handle = VEIL("r", 0x3F8ull);
fds->__init_p[2].handle = VEIL("r", 0x3F8ull);
} else if (IsWindows()) {
pushmov(&fds->f, 3ull);
fds->__init_p[0].kind = pushpop(kFdFile);
fds->__init_p[1].kind = pushpop(kFdFile);
fds->__init_p[2].kind = pushpop(kFdFile);
fds->__init_p[0].handle = GetStdHandle(pushpop(kNtStdInputHandle));
fds->__init_p[1].handle = GetStdHandle(pushpop(kNtStdOutputHandle));
fds->__init_p[2].handle = GetStdHandle(pushpop(kNtStdErrorHandle));
}
}