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authorRickard Green <[email protected]>2011-10-10 21:03:10 +0200
committerRickard Green <[email protected]>2011-11-13 20:40:56 +0100
commitbc5818cfdd56e19a16357f4443d80a56426aa134 (patch)
treebfe53d3e0cf24ccd7374e0174c1a4c441ab2e097 /erts/emulator/beam/erl_drv_nif.h
parenta67e91e658bdbba24fcc3c79b06fdf10ff830bc9 (diff)
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Replace system block with thread progress block
The ERTS internal system block functionality has been replaced by new functionality for blocking the system. The old system block functionality had contention issues and complexity issues. The new functionality piggy-backs on thread progress tracking functionality needed by newly introduced lock-free synchronization in the runtime system. When the functionality for blocking the system isn't used there is more or less no overhead at all. This since the functionality for tracking thread progress is there and needed anyway.
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