View source code
Display the source code in std/stdio.d from which this page was generated on
github.
Improve this page
Quickly fork, edit online, and submit a pull request for this page.
Requires a signed-in GitHub account. This works well for small changes.
If you'd like to make larger changes you may want to consider using
local clone.
Page wiki
View or edit the community-maintained wiki page associated with this page.
Function std.stdio.File.lock
Locks the specified file segment. If the file segment is already locked
by another process, waits until the existing lock
is released.
If both
and start
are zero, the entire file is locked.
length
Locks created using
and lock
have the following properties:
tryLock
- All locks are automatically released when the process terminates.
- Locks are not inherited by child processes.
- Closing a file will release all locks associated with the file. On POSIX,
even locks acquired via a different
will be released as well.File
- Not all NFS implementations correctly implement file locking.
Prototype
void lock( LockType lockType = cast(LockType)1, ulong start = 0LU, ulong length = 0LU );
Authors
Walter Bright, Andrei Alexandrescu, Alex Rønne Petersen