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celldb: version 2

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- thread safe cache
- parallel commit
- multiple optimizations
- support of key-value merge operations
- improved tests and benchmarks
- in-memory version won't read from key value after start - uses vector in-memory table now
- use rocksdb::WALRecoveryMode::kTolerateCorruptedTailRecords - do not silently ignore errors during recovery
This commit is contained in:
birydrad 2024-12-11 14:48:48 +03:00
parent 1b70e48327
commit c863c42ed1
32 changed files with 3276 additions and 318 deletions
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4
tdutils/td/utils/MpmcQueue.h
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@ -414,7 +414,9 @@ class MpmcQueue {
while (true) {
auto node = hazard_pointers_.protect(thread_id, 0, read_pos_);
auto &block = node->block;
if (block.write_pos <= block.read_pos && node->next.load(std::memory_order_relaxed) == nullptr) {
auto read_pos = block.read_pos.load();
auto write_pos = block.write_pos.load();
if (write_pos <= read_pos && node->next.load(std::memory_order_relaxed) == nullptr) {
return false;
}
auto pos = block.read_pos++;