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authorJoão Reis <reis@janeasystems.com>2019-05-09 01:18:05 +0100
committerBartosz Sosnowski <bartosz@janeasystems.com>2019-07-16 18:20:10 +0200
commit2c279504f92a7ab1fc54c85ec36272722198a77e (patch)
treeebafe2d387b53e133f889f30a1c44150e4228ea7 /docs/src
parentdabc737d7892971289537e52af4366c63cbc70b3 (diff)
downloadlibuv-2c279504f92a7ab1fc54c85ec36272722198a77e.tar.gz
libuv-2c279504f92a7ab1fc54c85ec36272722198a77e.zip
win: add UV_FS_O_FILEMAP
Reading and writing files using a memory file mapping can be significantly faster on Windows. PR-URL: https://github.com/libuv/libuv/pull/2295 Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Diffstat (limited to 'docs/src')
-rw-r--r--docs/src/fs.rst8
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/src/fs.rst b/docs/src/fs.rst
index 996624b6..fb8105fb 100644
--- a/docs/src/fs.rst
+++ b/docs/src/fs.rst
@@ -534,6 +534,14 @@ File open constants
.. versionchanged:: 1.17.0 support is added for Windows.
+.. c:macro:: UV_FS_O_FILEMAP
+
+ Use a memory file mapping to access the file. When using this flag, the
+ file cannot be open multiple times concurrently.
+
+ .. note::
+ `UV_FS_O_FILEMAP` is only supported on Windows.
+
.. c:macro:: UV_FS_O_NOATIME
Do not update the file access time when the file is read.