Fix #300 #18
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Fix #300 #18
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…thereum#26092) This PR replaces fastcache with a pretty simple LRU which does not require explicit closing. (cherry picked from commit 5fded04)
This fixes a problem in the SizeConstrainedLRU. The SCLRU uses an underlying simple lru which is not thread safe. During the Get operation, the recentness of the accessed item is updated, so it is not a pure read-operation. Therefore, the mutex we need is a full mutex, not RLock. This PR changes the mutex to be a regular Mutex, instead of RWMutex, so a reviewer can at a glance see that all affected locations are fixed. (cherry picked from commit 8334b5f)
* core/rawdb: fix freezer validation * core/rawdb: address comment (cherry picked from commit add1bff)
While investigating ethereum#22374, I noticed that the Sync operation of the freezer does not take the table lock. It also doesn't call sync for all files if there is an error with one of them. I doubt this will fix anything, but didn't want to drop the fix on the floor either. (cherry picked from commit 193f350)
dindinw
approved these changes
Nov 30, 2022
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Qitmeer/qng#300