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crimson/os/alienstore: use semaphore to manage tasks in thread pool 41976/head
authorKefu Chai <kchai@redhat.com>
Tue, 29 Jun 2021 12:06:49 +0000 (20:06 +0800)
committerKefu Chai <kchai@redhat.com>
Tue, 29 Jun 2021 16:01:12 +0000 (00:01 +0800)
commitd8461201866f7e7018c7845c847ae879255396b5
treecdf5ec2ecbd31697b9badbabae6560adadc00b31tree | snapshot
parent6ca774dbc719a2eac89135ef8e717bfcfbc34b5fcommit | diff
crimson/os/alienstore: use semaphore to manage tasks in thread pool

* implement std::counting_semaphore in C++17
* use the homebrew counting_semaphore as the synchronization primitive
  to access the pending tasks, for better performance than the
  implementation using mutex and condition_variable.

Signed-off-by: Kefu Chai <kchai@redhat.com>
src/crimson/os/alienstore/semaphore.h [new file with mode: 0644] blob
src/crimson/os/alienstore/thread_pool.h diff | blob | history
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