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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-07-10 15:53:32 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-07-11 11:06:44 -0300 |
| commit | 94070f86c0c849c71ed2e7e2189bb4d1f7411a17 (patch) | |
| tree | a7de3d544fc1d3cb5a2b211e0d80b6daf6e93800 /manual | |
| parent | 2a91300176a5991d9825eba085e502196a3f47cd (diff) | |
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posix: Add p{read,write}v2 RWF_NOWAIT flag (BZ#21738)
Linux 4.12 (b745fafaf70c0a98a2e1e7ac8cb14542889ceb0e) adds a new
p{read,write}v2 flag RWF_NOWAIT. This patch adds it for linux
uio-ext.h header.
Checked on x86_64-linux-gnu (on a 4.10 kernel).
[BZ #21738]
* manual/llio.texi (RWF_NOWAIT): New item.
* misc/tst-preadvwritev2-common.c (do_test_with_invalid_flags):
Add RWF_NOWAIT check.
* sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_NOWAIT): New flag.
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/llio.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/manual/llio.texi b/manual/llio.texi index ba1f455dfd..e72c53c785 100644 --- a/manual/llio.texi +++ b/manual/llio.texi @@ -770,6 +770,10 @@ Per-IO synchronization as if the file was opened with @code{O_DSYNC} flag. @item RWF_SYNC Per-IO synchronization as if the file was opened with @code{O_SYNC} flag. + +@item RWF_NOWAIT +Use nonblocking mode for this operation; that is, this call to @code{preadv2} +will fail and set @code{errno} to @code{EAGAIN} if the operation would block. @end vtable When the source file is compiled with @code{_FILE_OFFSET_BITS == 64} the |