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libuv 1.43.0

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3735 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams
2022-01-05 02:04:05 +00:00
parent c02a3d3659
commit e2c25ab414
60 changed files with 1048 additions and 608 deletions
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119
deps/libuv/src/unix/fs.c vendored
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@ -946,6 +946,71 @@ static int uv__is_buggy_cephfs(int fd) {
return uv__kernel_version() < /* 4.20.0 */ 0x041400;
}
static int uv__is_cifs_or_smb(int fd) {
struct statfs s;
if (-1 == fstatfs(fd, &s))
return 0;
switch ((unsigned) s.f_type) {
case 0x0000517Bu: /* SMB */
case 0xFE534D42u: /* SMB2 */
case 0xFF534D42u: /* CIFS */
return 1;
}
return 0;
}
static ssize_t uv__fs_try_copy_file_range(int in_fd, off_t* off,
int out_fd, size_t len) {
static int no_copy_file_range_support;
ssize_t r;
if (uv__load_relaxed(&no_copy_file_range_support)) {
errno = ENOSYS;
return -1;
}
r = uv__fs_copy_file_range(in_fd, off, out_fd, NULL, len, 0);
if (r != -1)
return r;
switch (errno) {
case EACCES:
/* Pre-4.20 kernels have a bug where CephFS uses the RADOS
* copy-from command when it shouldn't.
*/
if (uv__is_buggy_cephfs(in_fd))
errno = ENOSYS; /* Use fallback. */
break;
case ENOSYS:
uv__store_relaxed(&no_copy_file_range_support, 1);
break;
case EPERM:
/* It's been reported that CIFS spuriously fails.
* Consider it a transient error.
*/
if (uv__is_cifs_or_smb(out_fd))
errno = ENOSYS; /* Use fallback. */
break;
case ENOTSUP:
case EXDEV:
/* ENOTSUP - it could work on another file system type.
* EXDEV - it will not work when in_fd and out_fd are not on the same
* mounted filesystem (pre Linux 5.3)
*/
errno = ENOSYS; /* Use fallback. */
break;
}
return -1;
}
#endif /* __linux__ */
@ -960,40 +1025,21 @@ static ssize_t uv__fs_sendfile(uv_fs_t* req) {
{
off_t off;
ssize_t r;
size_t len;
int try_sendfile;
off = req->off;
len = req->bufsml[0].len;
try_sendfile = 1;
#ifdef __linux__
{
static int no_copy_file_range_support;
if (uv__load_relaxed(&no_copy_file_range_support) == 0) {
r = uv__fs_copy_file_range(in_fd, &off, out_fd, NULL, req->bufsml[0].len, 0);
if (r == -1 && errno == ENOSYS) {
/* ENOSYS - it will never work */
errno = 0;
uv__store_relaxed(&no_copy_file_range_support, 1);
} else if (r == -1 && errno == EACCES && uv__is_buggy_cephfs(in_fd)) {
/* EACCES - pre-4.20 kernels have a bug where CephFS uses the RADOS
copy-from command when it shouldn't */
errno = 0;
uv__store_relaxed(&no_copy_file_range_support, 1);
} else if (r == -1 && (errno == ENOTSUP || errno == EXDEV)) {
/* ENOTSUP - it could work on another file system type */
/* EXDEV - it will not work when in_fd and out_fd are not on the same
mounted filesystem (pre Linux 5.3) */
errno = 0;
} else {
goto ok;
}
}
}
r = uv__fs_try_copy_file_range(in_fd, &off, out_fd, len);
try_sendfile = (r == -1 && errno == ENOSYS);
#endif
r = sendfile(out_fd, in_fd, &off, req->bufsml[0].len);
if (try_sendfile)
r = sendfile(out_fd, in_fd, &off, len);
ok:
/* sendfile() on SunOS returns EINVAL if the target fd is not a socket but
* it still writes out data. Fortunately, we can detect it by checking if
* the offset has been updated.
@ -1277,22 +1323,15 @@ static ssize_t uv__fs_copyfile(uv_fs_t* req) {
if (fchmod(dstfd, src_statsbuf.st_mode) == -1) {
err = UV__ERR(errno);
#ifdef __linux__
/* fchmod() on CIFS shares always fails with EPERM unless the share is
* mounted with "noperm". As fchmod() is a meaningless operation on such
* shares anyway, detect that condition and squelch the error.
*/
if (err != UV_EPERM)
goto out;
{
struct statfs s;
/* fchmod() on CIFS shares always fails with EPERM unless the share is
* mounted with "noperm". As fchmod() is a meaningless operation on such
* shares anyway, detect that condition and squelch the error.
*/
if (fstatfs(dstfd, &s) == -1)
goto out;
if ((unsigned) s.f_type != /* CIFS */ 0xFF534D42u)
goto out;
}
if (!uv__is_cifs_or_smb(dstfd))
goto out;
err = 0;
#else /* !__linux__ */