Ondřej Surý f326d45135 Lock view while accessing its zone table ... Commit 308bc46a59 introduced a change to the view_flushanddetach() function which makes the latter access view->zonetable without holding view->lock. As confirmed by TSAN, this enables races between threads for view->zonetable accesses. Swap the view->zonetable pointer under view lock and then detach the local swapped dns_zt_t later when the view lock is already unlocked. This commit also changes the dns_zt interfaces, so the setting the zonetable "flush" flag is separate operation to dns_zt_detach, e.g. instead of doing: if (view->flush) { dns_zt_flushanddetach(&zt); } else { dns_zt_detach(&zt); } the code is now: if (view->flush) { dns_zt_flush(zt); } dns_zt_detach(&zt); making the code more consistent with how we handle flushing and detaching dns_zone_t pointers from the view.		2022-01-05 16:56:16 +01:00
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dns	Lock view while accessing its zone table	2022-01-05 16:56:16 +01:00
dst	Use #pragma once as header guards	2021-10-13 00:49:15 -07:00
.clang-format	Add separate .clang-format files for headers	2020-02-14 09:31:05 +01:00