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581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
/* Linux implementation of pwritev2.
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Copyright (C) 2017-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sys/uio.h>
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#include <sysdep-cancel.h>
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#ifndef __OFF_T_MATCHES_OFF64_T
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ssize_t
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pwritev2 (int fd, const struct iovec *vector, int count, off_t offset,
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int flags)
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{
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ssize_t result = SYSCALL_CANCEL (pwritev2, fd, vector, count,
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LO_HI_LONG (offset), flags);
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if (result >= 0 || errno != ENOSYS)
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return result;
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/* Trying to emulate the pwritev2 syscall flags is troublesome:
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* We can not temporary change the file state of the O_DSYNC and O_SYNC
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flags to emulate RWF_{D}SYNC (attempts to change the state of using
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fcntl are silently ignored).
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* IOCB_HIPRI requires the file opened in O_DIRECT and uses an internal
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semantic not provided by any other flag (O_NONBLOCK for instance). */
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if (flags != 0)
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{
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__set_errno (ENOTSUP);
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return -1;
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}
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if (offset == -1)
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return __writev (fd, vector, count);
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else
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return pwritev (fd, vector, count, offset);
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}
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#endif
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