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doc: undocument fs.open's 'rs' mode

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Using O_SYNC with O_RDONLY is basically a noop.

Closes: https://github.com/nodejs/node/issues/6730
PR-URL: https://github.com/nodejs/node/pull/6732
Reviewed-By: Ben Noorhduis <info@bnoordhuis.nl>
This commit is contained in:
Saúl Ibarra Corretgé 2016-05-13 10:21:40 +02:00
parent 9d445bce07
commit a661e26300
1 changed files with 2 additions and 5 deletions
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doc/api/fs.md
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@ -753,8 +753,8 @@ An exception occurs if the file does not exist.
* `'r+'` - Open file for reading and writing.
An exception occurs if the file does not exist.
* `'rs'` - Open file for reading in synchronous mode. Instructs the operating
system to bypass the local file system cache.
* `'rs+'` - Open file for reading and writing in synchronous mode. Instructs
the operating system to bypass the local file system cache.
This is primarily useful for opening files on NFS mounts as it allows you to
skip the potentially stale local cache. It has a very real impact on I/O
@ -763,9 +763,6 @@ An exception occurs if the file does not exist.
Note that this doesn't turn `fs.open()` into a synchronous blocking call.
If that's what you want then you should be using `fs.openSync()`
* `'rs+'` - Open file for reading and writing, telling the OS to open it
synchronously. See notes for `'rs'` about using this with caution.
* `'w'` - Open file for writing.
The file is created (if it does not exist) or truncated (if it exists).