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9 commits

Author SHA1 Message Date
Stephen Seo 56ee5c3aed Tweak compare_exchange_weak(...) in spin-lock
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2024-01-12 13:32:05 +09:00
Stephen Seo 4917fc47f6 Don't fail on "try" fns if failed to get spinLock 
In SharedSpinLock: Only fail on "try" fns after spinLock was acquired
and condition is not met.
 2024-01-12 13:32:05 +09:00
Stephen Seo a0f8bf0b41 Refactor shared-spin-lock to use atomic "spinLock" 2024-01-12 13:32:05 +09:00
Stephen Seo d1354b13d5 Minor refactorings 2024-01-12 13:32:05 +09:00
Stephen Seo 05087406b1 Reland C++11 "shared_lock" with iter remove fix 
On iterator remove, the iterator will trade the read lock for a write
lock, and trade back for a read lock once the remove has been completed.
 2024-01-12 13:32:05 +09:00
Stephen Seo 611287b377 Revert "Impl "RWLock" for use in TSLQueue" 
This reverts commit cf27a6bb76.

The use of "shared_lock" in TSLQueue is unsafe because of two things:

  - The TSLQueue iterator takes a "read" lock.
  - The TSLQueue iterator can erase the current element.
 2023-07-22 17:28:33 +09:00
Stephen Seo ce092f81f9 Revert "Replace unnecessary use of atomic in "shared_lock"" 
This reverts commit b50e50b5fb.
 2023-07-22 17:28:13 +09:00
Stephen Seo b50e50b5fb Replace unnecessary use of atomic in "shared_lock" 2023-07-22 16:46:38 +09:00
Stephen Seo cf27a6bb76 Impl "RWLock" for use in TSLQueue 
This project supports C++11, and std::shared_lock was made available in
C++17, thus a "shared_spin_lock" was created with similar functionality.
This "shared_spin_lock" is used in TSLQueue.
 2023-07-22 16:33:09 +09:00