function SessionStreamWrapper::stream_lock

Same name and namespace in other branches
  1. 3.x modules/stream_wrapper_example/src/StreamWrapper/SessionStreamWrapper.php \Drupal\stream_wrapper_example\StreamWrapper\SessionStreamWrapper::stream_lock()
  2. 8.x-1.x stream_wrapper_example/src/StreamWrapper/SessionStreamWrapper.php \Drupal\stream_wrapper_example\StreamWrapper\SessionStreamWrapper::stream_lock()

Support for flock().

The session object has no locking capability, so return TRUE.

Parameters

int $operation: One of the following:

  • LOCK_SH to acquire a shared lock (reader).
  • LOCK_EX to acquire an exclusive lock (writer).
  • LOCK_UN to release a lock (shared or exclusive).
  • LOCK_NB if you don't want flock() to block while locking (not supported on Windows).

Return value

bool Always returns TRUE at the present time. (no support)

Overrides PhpStreamWrapperInterface::stream_lock

See also

http://php.net/manual/en/streamwrapper.stream-lock.php

File

modules/stream_wrapper_example/src/StreamWrapper/SessionStreamWrapper.php, line 424

Class

SessionStreamWrapper
Example stream wrapper class to handle session:// streams.

Namespace

Drupal\stream_wrapper_example\StreamWrapper

Code

public function stream_lock($operation) {
  return TRUE;
}