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authorMichael Santos <[email protected]>2010-04-30 12:22:11 -0400
committerRaimo Niskanen <[email protected]>2010-06-04 10:47:56 +0200
commit4bd026cccb2c22279dd9c88e704642c5a65d3c53 (patch)
tree5c801bf9813b575eb302039f78b07b50364b6696 /lib/kernel/src/file.erl
parentcbd1378ee1fde835e55614bac9290b281bafe49a (diff)
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Support opening files in exclusive mode
Add an option that atomically tests for the existence of a file and creates it if the file does not exist, by passing the O_EXCL flag to open() on Unix and CREATE_NEW flag on Windows. Support for O_EXCL varies across platforms and filesystems. {ok, Fd} = file:open("/tmp/foo", [write,exclusive]), {error, eexist} = file:open("/tmp/foo", [write,exclusive]).
Diffstat (limited to 'lib/kernel/src/file.erl')
-rw-r--r--lib/kernel/src/file.erl2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/kernel/src/file.erl b/lib/kernel/src/file.erl
index a37614e424..1ba329a12b 100644
--- a/lib/kernel/src/file.erl
+++ b/lib/kernel/src/file.erl
@@ -81,7 +81,7 @@
-type mode() :: 'read' | 'write' | 'append' | 'raw' | 'binary' |
{'delayed_write', non_neg_integer(), non_neg_integer()} |
'delayed_write' | {'read_ahead', pos_integer()} |
- 'read_ahead' | 'compressed'.
+ 'read_ahead' | 'compressed' | 'exclusive'.
-type name() :: string() | atom() | [name()].
-type posix() :: atom().
-type bindings() :: any().