xinyiZzz commented on code in PR #9727:
URL: https://github.com/apache/incubator-doris/pull/9727#discussion_r879936473
##########
be/src/util/faststring.cc:
##########
@@ -37,18 +37,20 @@ void faststring::GrowToAtLeast(size_t newcapacity) {
void faststring::GrowArray(size_t newcapacity) {
DCHECK_GE(newcapacity, capacity_);
- std::unique_ptr<uint8_t[]> newdata(new uint8_t[newcapacity]);
- if (len_ > 0) {
- memcpy(&newdata[0], &data_[0], len_);
- }
- capacity_ = newcapacity;
+ uint8_t* newdata = NULL;
if (data_ != initial_data_) {
- delete[] data_;
+ newdata = (uint8_t*)realloc((void*)data_, newcapacity);
} else {
+ newdata = (uint8_t*)malloc(newcapacity);
+ if (len_ > 0) {
+ memcpy(newdata, data_, len_);
+ }
+ }
+ capacity_ = newcapacity;
+ data_ = newdata;
+ if (data_ == initial_data_) {
ASAN_POISON_MEMORY_REGION(initial_data_, arraysize(initial_data_));
Review Comment:
initial_data_ is a reserved memory, which is no longer equal to after the
first GrowArray.
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