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drop deprecated TBB components (#6590)

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Quite some time ago, many of the TBB components were deprecated in favor
of their near-equivalents in the STL or, in the case of task_scheduler_init,
were broken up and reconstituted under a less ad-hoc logic. Every time a header
file marked deprecated gets included, a rather loud warning is emitted, which
leads to a complete TBB's domination over the stderr stream during build time,
making it harder to notice _legitimate_ warnings.

Instead of merely muting the output with TBB_SUPPRESS_DEPRECATED_MESSAGES,
perform a genuine migration away from the deprecated components with the added
benefit of achieving a source compatibility with oneTBB, the successor to TBB
which has dropped the deprecated API for good.

What got replaced for what?

| Deprecated				| Replacement					|
| ------------------------------------- | --------------------------------------------- |
| `tbb::atomic`				| `std::atomic`					|
| `tbb::mutex`				| `std::mutex`					|
| `tbb::mutex::scoped_lock`		| `std::scoped_lock<std::mutex>`		|
| `tbb::mutex::scoped_lock` (empty)	| `std::unique_lock<std::mutex>` (deferred)	|
| `tbb::task_scheduler_init`		| `tbb::global_control`				|
| `tbb::this_thread`			| `std::this_thread`				|

Signed-off-by: Roman Beranek <roman.beranek@prusa3d.com>
This commit is contained in:
Roman Beránek
2021-06-23 11:48:48 +02:00
committed by GitHub
parent 7a7108b2ad
commit e13535f822
18 changed files with 80 additions and 95 deletions
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5
src/libslic3r/Execution/ExecutionTBB.hpp
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@@ -1,8 +1,9 @@
#ifndef EXECUTIONTBB_HPP
#define EXECUTIONTBB_HPP
#include <mutex>
#include <tbb/spin_mutex.h>
#include <tbb/mutex.h>
#include <tbb/parallel_for.h>
#include <tbb/parallel_reduce.h>
#include <tbb/task_arena.h>
@@ -34,7 +35,7 @@ private:
public:
using SpinningMutex = tbb::spin_mutex;
using BlockingMutex = tbb::mutex;
using BlockingMutex = std::mutex;
template<class It, class Fn>
static void for_each(const ExecutionTBB &,