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Avoid taking the remainder operation with a denominator of 0

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Change-Id: Icbde475b4b4f20dcb7ab3722745e65017b0a9f8e
Signed-off-by: leiguangyu <leiguangyu@huawei.com>
This commit is contained in:
leiguangyu 2024-08-27 14:54:14 +08:00
parent 3784c605bf
commit bd57644f4c
2 changed files with 3 additions and 3 deletions
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2
include/unique_stack_table.h
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@ -128,7 +128,7 @@ private:
uint32_t totalNodes_ = 0;
// current available node count, include index 0
uint32_t availableNodes_ = 0;
uint32_t hashModulus_ = 0;
uint32_t hashModulus_ = 1;
// 0 for reserved, start from 1
uint32_t availableIndex_ = 1;
// for de-conflict

4
src/unique_stack_table.cpp
View File

@ -31,7 +31,7 @@ bool UniqueStackTable::Init()
}
availableNodes_ = totalNodes_;
hashModulus_ = availableNodes_ >= 1 ? availableNodes_ - 1 : 0;
hashModulus_ = availableNodes_ > 1 ? availableNodes_ - 1 : 1;
hashStep_ = (totalNodes_ / (deconflictTimes_ * HASH_STEP_BASE_MULTIPLE + HASH_STEP_BASE_NUM));
tableBuf_ = std::make_unique<uint8_t[]>(tableSize_);
@ -71,7 +71,7 @@ bool UniqueStackTable::Resize()
availableIndex_ += availableNodes_;
totalNodes_ = ((newtableSize / sizeof(Node)) >> 1) << 1; // make it even.
availableNodes_ = totalNodes_ - oldNumNodes;
hashModulus_ = availableNodes_ >= 1 ? availableNodes_ - 1 : 0;
hashModulus_ = availableNodes_ > 1 ? availableNodes_ - 1 : 1;
hashStep_ = availableNodes_ / (deconflictTimes_ * HASH_STEP_BASE_MULTIPLE + HASH_STEP_BASE_NUM);
HLOGI("After resize, totalNodes_: %u, availableNodes_: %u, availableIndex_: %u hashStep_: %" PRIu64 "",
totalNodes_, availableNodes_, availableIndex_, hashStep_);