db/pinned_iterators_manager.h: bugfix

Summary:
std::unique(beg, end) returns an iterator of unique_end, data behind unique_end should not be accessed.
Closes https://github.com/facebook/rocksdb/pull/1726

Differential Revision: D4371076

Pulled By: IslamAbdelRahman

fbshipit-source-id: 5564450
main
leipeng 8 years ago committed by Facebook Github Bot
parent 906523d98a
commit a738af8f84
  1. 10
      db/pinned_iterators_manager.h

@ -59,13 +59,11 @@ class PinnedIteratorsManager {
// Remove duplicate pointers
std::sort(pinned_ptrs_.begin(), pinned_ptrs_.end());
std::unique(pinned_ptrs_.begin(), pinned_ptrs_.end());
auto unique_end = std::unique(pinned_ptrs_.begin(), pinned_ptrs_.end());
for (size_t i = 0; i < pinned_ptrs_.size(); i++) {
assert(i == 0 || pinned_ptrs_[i].first != pinned_ptrs_[i - 1].first);
void* ptr = pinned_ptrs_[i].first;
ReleaseFunction release_func = pinned_ptrs_[i].second;
for (auto i = pinned_ptrs_.begin(); i != unique_end; ++i) {
void* ptr = i->first;
ReleaseFunction release_func = i->second;
release_func(ptr);
}
pinned_ptrs_.clear();

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