Restyle Fix all thread races in chip-tool #7479
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Problem: This PR achieves the following to fix-up the various thread-races detected by tsan in chip-tool: Change: - Following the pattern of 'external synchronization', sprinkled LockChipStack() and UnlockChipStack() calls around key call sites that called into the stack from the various command logic in chip-tool - Removed usleep and global instance hacks. - Re-structured Command::Run to now have the bulk of the stack initialization and shutdown be managed before Run() is called in Commands::Run(), and an ExecutionContext object pointer be stashed inside the Command for convenient access. This reduces the changes of people writing new commands of getting stack initialization wrong. - Instead of sometimes using chip::Controller::DeviceController and sometimes DeviceCommissioner, just used the latter in all commands since that is the super-set class anyways. - Added a new 'StopEventLoopTask' that is thread-safe, that is needed to be called by application logic before DeviceController::Shutdown() can be called with external synchronization. - Fixed up TestMdns as well along the way. Testing: - Enabled tsan using 'is_tsan' build arg and used that catch well over 10+ races, with not a single false-positive. - Ran through all the chip-tool command groups (pairing, IM, discover, testcluster, payload, etc) 10x each to ensure no regressions in functionality as well as ensuring clean shutdown with tsan.
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A duplicate of #7478 with additional commits that automatically address
incorrect style, created by Restyled.
Please review accordingly.
Since the original Pull Request was opened as a fork in a contributor's
repository, we are unable to create a Pull Request branching from it with only
the style fixes.
The following Restylers made fixes:
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