1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
class Mutex
# call-seq:
# mutex.synchronize { ... }
#
# Obtains a lock, runs the block, and releases the lock when the
# block completes. See the example under Mutex.
def synchronize
self.lock
begin
yield
ensure
self.unlock rescue nil
end
end
end
class Thread
MUTEX_FOR_THREAD_EXCLUSIVE = Mutex.new # :nodoc:
# call-seq:
# Thread.exclusive { block } => obj
#
# Wraps a block in Thread.critical, restoring the original value
# upon exit from the critical section, and returns the value of the
# block.
def self.exclusive
MUTEX_FOR_THREAD_EXCLUSIVE.synchronize{
yield
}
end
end
|
