Data commit

Task/Mutex/Ruby/mutex-1.rb

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+require 'mutex_m'
+
+class SomethingWithMutex
+  include Mutex_m
+  ...
+end

Task/Mutex/Ruby/mutex-2.rb

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+an_object = Object.new
+an_object.extend(Mutex_m)

Task/Mutex/Ruby/mutex-3.rb

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+# acquire a lock -- block execution until it becomes free
+an_object.mu_lock
+
+# acquire a lock -- return immediately even if not acquired
+got_lock = an_object.mu_try_lock
+
+# have a lock?
+if an_object.mu_locked? then ...
+
+# release the lock
+an_object.mu_unlock
+
+# wrap a lock around a block of code -- block execution until it becomes free
+an_object.my_synchronize do
+  do critical stuff
+end