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Versions: 50
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Contents
# A Profiler that can be used to wrap around blocks of code. It is configured
# with other profilers and controls them to start before the block is executed
# and finish after the block is executed.
#
# @api private
class Puppet::Util::Profiler::AroundProfiler
def initialize
@profilers = []
end
# Reset the profiling system to the original state
#
# @api private
def clear
@profilers = []
end
# Retrieve the current list of profilers
#
# @api private
def current
@profilers
end
# @param profiler [#profile] A profiler for the current thread
# @api private
def add_profiler(profiler)
@profilers << profiler
profiler
end
# @param profiler [#profile] A profiler to remove from the current thread
# @api private
def remove_profiler(profiler)
@profilers.delete(profiler)
end
# Profile a block of code and log the time it took to execute.
#
# This outputs logs entries to the Puppet masters logging destination
# providing the time it took, a message describing the profiled code
# and a leaf location marking where the profile method was called
# in the profiled hierachy.
#
# @param message [String] A description of the profiled event
# @param metric_id [Array] A list of strings making up the ID of a metric to profile
# @param block [Block] The segment of code to profile
# @api private
def profile(message, metric_id = nil)
retval = nil
contexts = {}
@profilers.each do |profiler|
contexts[profiler] = profiler.start(message, metric_id)
end
begin
retval = yield
ensure
@profilers.each do |profiler|
profiler.finish(contexts[profiler], message, metric_id)
end
end
retval
end
end
Version data entries
50 entries across 50 versions & 2 rubygems