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Fix mem leak in hash, add reset tail for allocator

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This commit is contained in:
Doyle Thai 2018-02-05 17:42:27 +11:00
parent 701140287f
commit b0217483db
1 changed files with 28 additions and 6 deletions
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34
dqn.h
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@ -485,7 +485,9 @@ struct DqnMemStack
bool FreeLastBlock ();
// Reverts the stack and its usage back to the first block
void Reset();
void Reset ();
void ResetTail ();
// Reset the current memory block usage to 0.
void ClearCurrBlock(bool zeroClear);
@ -633,8 +635,8 @@ template <typename T>
bool DqnArray<T>::Grow(isize multiplier)
{
isize newMax = this->max * multiplier;
newMax = (newMax == 0) ? 8 : newMax;
bool result = this->Resize(newMax);
newMax = (newMax < 8) ? 8 : newMax;
bool result = this->Resize(newMax);
return result;
}
@ -659,7 +661,7 @@ T *DqnArray<T>::Make()
template <typename T>
T *DqnArray<T>::Push(T const *item, isize num)
{
if (!this->data || (this->count + num) >= this->max)
if (!this->data || (this->count + num) > this->max)
{
if (!this->Grow())
{
@ -1512,7 +1514,14 @@ typename DqnHashTable<T>::Entry *DqnHashTable<T>::Make(char const *const key, i3
this->usedEntries[indexToEndAt] = hashIndex;
}
newEntry->key.InitSize(keyLen, this->memAPI);
// TODO(doyle): Is this a robust check? If we retrieve from the freeEntryList, the memAPI
// may already be initialised.
if (!newEntry->key.memAPI)
{
newEntry->key.InitSize(keyLen, this->memAPI);
DQN_ASSERT(newEntry->key.memAPI == this->memAPI);
}
newEntry->key.Append(key, keyLen);
newEntry->next = this->entries[hashIndex];
this->entries[hashIndex] = newEntry;
@ -3867,6 +3876,19 @@ bool DqnMemStack::FreeMemBlock(DqnMemStack::Block *memBlock)
return false;
}
void DqnMemStack::ResetTail()
{
u8 *start = this->block->tail;
u8 *end = this->block->memory + this->block->size;
if (Dqn_BitIsSet(this->flags, Flag::BoundsGuard))
{
DqnMemStackInternal_KillMetadataPtrsExistingIn(&this->metadata, start, end);
}
this->block->tail = end;
}
void DqnMemStack::Reset()
{
while(this->block && this->block->prevBlock)
@ -5236,7 +5258,7 @@ DQN_FILE_SCOPE bool DqnStr_EndsWith(char const *src, i32 srcLen, char const *fin
if (srcLen < findLen)
return false;
char const *srcEnd = src + (srcLen - 1);
char const *srcEnd = src + (srcLen);
char const *checkSrcFrom = srcEnd - findLen;
bool result = (DqnStr_Cmp(checkSrcFrom, find, findLen, ignoreCase) == 0);