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sylt wants to merge 3 commits into from
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Optimization: Preprocess files in parallel #653

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Optimization: Preprocess files in parallel
sylt Jan 7, 2022
85299d0
Don't spawn threads that definitely won't be needed
sylt Jan 7, 2022
202a4d8
Merge branch 'ThrowTheSwitch:master' into master
sylt Jan 13, 2022
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10 changes: 8 additions & 2 deletions lib/ceedling/par_map.rb
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Original file line number Diff line number Diff line change
@@ -1,9 +1,15 @@


def par_map(n, things, &block)
if (things.length <= 1)
yield things.pop() if not things.empty?
return
end

queue = Queue.new
things.each { |thing| queue << thing }
threads = (1..n).collect do

num_threads = [n, things.length].min()
threads = (1..num_threads).collect do
Thread.new do
begin
while true
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8 changes: 7 additions & 1 deletion lib/ceedling/preprocessinator_helper.rb
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
require 'ceedling/par_map'


class PreprocessinatorHelper
Expand Down Expand Up @@ -43,7 +44,12 @@ def preprocess_files_smartly(file_list, preprocess_file_proc)
if (@configurator.project_use_deep_dependencies)
@task_invoker.invoke_test_preprocessed_files(file_list)
else
file_list.each { |file| preprocess_file_proc.call( yield(file) ) }
found_files = Array.new
file_list.each { |file| found_files << yield(file) }

par_map(PROJECT_COMPILE_THREADS, found_files) do |file|
preprocess_file_proc.call(file)
end
end
end

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