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patch 8.0.1305: writefile() never calls fsync()

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Problem:    Writefile() never calls fsync().
Solution:   Follow the 'fsync' option with override to enable or disable.
This commit is contained in:
Bram Moolenaar
2017-11-16 23:04:15 +01:00
parent d048009717
commit 7567d0b115
6 changed files with 38 additions and 4 deletions
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15
runtime/doc/eval.txt
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@@ -1,4 +1,4 @@
*eval.txt* For Vim version 8.0. Last change: 2017 Oct 28
*eval.txt* For Vim version 8.0. Last change: 2017 Nov 16
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -8721,7 +8721,7 @@ winwidth({nr}) *winwidth()*
Examples: >
:echo "The current window has " . winwidth(0) . " columns."
:if winwidth(0) <= 50
: exe "normal 50\<C-W>|"
: 50 wincmd |
:endif
< For getting the terminal or screen size, see the 'columns'
option.
@@ -8762,8 +8762,17 @@ writefile({list}, {fname} [, {flags}])
appended to the file: >
:call writefile(["foo"], "event.log", "a")
:call writefile(["bar"], "event.log", "a")
<
When {flags} contains "s" then fsync() is called after writing
the file. This flushes the file to disk, if possible. This
takes more time but avoids losing the file if the system
crashes.
When {flags} does not contain "S" or "s" then fsync is called
if the 'fsync' option is set.
When {flags} contains "S" then fsync() is not called, even
when 'fsync' is set.
< All NL characters are replaced with a NUL character.
All NL characters are replaced with a NUL character.
Inserting CR characters needs to be done before passing {list}
to writefile().
An existing file is overwritten, if possible.