mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-06-27 23:08:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

Rewrite special file handling on Windows

Browse source 
This change gets GNU grep working. What caused it to not work, is it
wouldn't write to an output file descriptor when its dev/ino equaled
/dev/null's. So now we invent special dev/ino values for these files
This commit is contained in:
Justine Tunney 2023-10-14 01:06:00 -07:00
parent aca2261cda
commit 2db2f40a98
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
53 changed files with 485 additions and 299 deletions
Download patch file Download diff file Expand all files Collapse all files

4
libc/intrin/describestat.c
View file

@ -60,11 +60,11 @@ const char *(DescribeStat)(char buf[N], int rc, const struct stat *st) {
}
if (st->st_dev) {
append(", .st_%s=%lu", "dev", st->st_dev);
append(", .st_%s=%#lx", "dev", st->st_dev);
}
if (st->st_ino) {
append(", .st_%s=%lu", "ino", st->st_ino);
append(", .st_%s=%#lx", "ino", st->st_ino);
}
if (st->st_gen) {

30
libc/intrin/fnv.c Normal file
View file

@ -0,0 +1,30 @@
/*-*- 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 2023 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/str/str.h"
uint64_t __fnv(const void *data, size_t size) {
const unsigned char *p = data;
const unsigned char *pe = p + size;
uint64_t hash = 0xcbf29ce484222325;
while (p < pe) {
hash *= 0x100000001b3;
hash ^= *p++;
}
return hash;
}

37
libc/intrin/pthread_unref.c Normal file
View file

@ -0,0 +1,37 @@
/*-*- 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 2023 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/assert.h"
#include "libc/intrin/atomic.h"
#include "libc/intrin/weaken.h"
#include "libc/thread/posixthread.internal.h"
static bool _pthread_deref(struct PosixThread *pt) {
int refs = atomic_load_explicit(&pt->pt_refs, memory_order_acquire);
if (!refs) return true;
unassert(refs > 0);
return !atomic_fetch_sub(&pt->pt_refs, 1);
}
void _pthread_unref(struct PosixThread *pt) {
if (_pthread_deref(pt)) {
unassert(_weaken(_pthread_free));
_weaken(_pthread_free)(pt, false);
_weaken(_pthread_decimate)();
}
}

2
libc/intrin/reopenfile.c
View file

@ -28,14 +28,12 @@ __msabi extern typeof(ReOpenFile) *const __imp_ReOpenFile;
* Reopens file on the New Technology.
*
* @return handle, or -1 on failure
* @note this wrapper takes care of ABI, STRACE(), and __winerr()
*/
int64_t ReOpenFile(int64_t hOriginalFile, uint32_t dwDesiredAccess,
uint32_t dwShareMode, uint32_t dwFlagsAndAttributes) {
int64_t hHandle;
hHandle = __imp_ReOpenFile(hOriginalFile, dwDesiredAccess, dwShareMode,
dwFlagsAndAttributes);
if (hHandle == -1) __winerr();
NTTRACE("ReOpenFile(%ld, %s, %s, %s) → %ld% m", hOriginalFile,
DescribeNtFileAccessFlags(dwDesiredAccess),
DescribeNtFileShareFlags(dwShareMode),