Aram Sargsyan c6529891bb Fix isc_quota bug ... Running jobs which were entered into the isc_quota queue is the responsibility of the isc_quota_release() function, which, when releasing a previously acquired quota, checks whether the queue is empty, and if it's not, it runs a job from the queue without touching the 'quota->used' counter. This mechanism is susceptible to a possible hangup of a newly queued job in case when between the time a decision has been made to queue it (because used >= max) and the time it was actually queued, the last quota was released. Since there is no more quotas to be released (unless arriving in the future), the newly entered job will be stuck in the queue. Fix the wrong memory ordering for 'quota->used', as the relaxed ordering doesn't ensure that data modifications made by one thread are visible in other threads. Add checks in both isc_quota_release() and isc_quota_acquire_cb() to make sure that the described hangup does not happen. Also see code comments.		2025-02-20 10:56:00 +00:00
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isc	Fix isc_quota bug	2025-02-20 10:56:00 +00:00
.clang-format	Add separate .clang-format files for headers	2020-02-14 09:31:05 +01:00