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Elevate Windows production worthiness

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- SQLite file locking now works on Windows
- SQLite will now use fdatasync() on non-Apple platforms
- Fix Ctrl-C handler on Windows to not crash with TLS
- Signals now work in multithreaded apps on Windows
- fcntl() will now accurately report EINVAL errors
- fcntl() now has excellent --strace logging
- Token bucket replenish now go 100x faster
- *NSYNC cancellations now work on Windows
- Support closefrom() on NetBSD
This commit is contained in:
Justine Tunney 2022-10-13 13:44:41 -07:00
parent d38700687a
commit 997ce29ddc
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GPG key ID: BE714B4575D6E328
95 changed files with 959 additions and 418 deletions
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65
libc/calls/sig.c
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@ -1,65 +0,0 @@
/*-*- 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 2022 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/calls/sig.internal.h"
#include "libc/calls/state.internal.h"
#include "libc/macros.internal.h"
#include "libc/sysv/consts/sig.h"
#include "libc/sysv/errfuns.h"
/**
* @fileoverview UNIX signals for the New Technology, Part 1.
* @threadsafe
*/
struct Signals __sig; // TODO(jart): Need TLS
#define GetSigBit(XXSIG) (1ull << (((XXSIG)-1) & 63))
/**
* Changes signal mask for main thread.
* @return 0 on success, or -1 w/ errno
*/
textwindows int __sig_mask(int how, const sigset_t *neu, sigset_t *old) {
int i;
uint64_t a, b;
if (how == SIG_BLOCK || how == SIG_UNBLOCK || how == SIG_SETMASK) {
__sig_lock();
if (old) {
*old = __sig.mask;
}
if (neu) {
for (i = 0; i < ARRAYLEN(__sig.mask.__bits); ++i) {
if (how == SIG_BLOCK) {
__sig.mask.__bits[i] |= neu->__bits[i];
} else if (how == SIG_UNBLOCK) {
__sig.mask.__bits[i] &= ~neu->__bits[i];
} else {
__sig.mask.__bits[i] = neu->__bits[i];
}
}
__sig.mask.__bits[0] &= ~(GetSigBit(SIGKILL) | GetSigBit(SIGSTOP));
}
__sig_unlock();
return 0;
} else {
return einval();
}
}
#undef GetSigBit