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|
#
# timeout.rb -- execution timeout
#
#= SYNOPSIS
#
# require 'timeout'
# status = timeout(5) {
# # something may take time
# }
#
#= DESCRIPTION
#
# timeout executes the block. If the block execution terminates successfully
# before timeout, it returns true. If not, it terminates the execution and
# raise TimeoutError exception.
#
#== Parameters
#
# : timout
#
# The time in seconds to wait for block teminatation.
#
#=end
class TimeoutError<StandardError
end
Thread.abort_on_exception = true
def timeout(sec)
begin
x = Thread.current
y = Thread.start {
sleep sec
x.raise TimeoutError, "execution expired" if x.alive?
}
yield sec
return true
ensure
Thread.kill y if y.alive?
end
end
|
