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Diffstat (limited to 'src/leveldb/table/iterator.cc')
-rw-r--r-- | src/leveldb/table/iterator.cc | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/src/leveldb/table/iterator.cc b/src/leveldb/table/iterator.cc deleted file mode 100644 index 3d1c87fde..000000000 --- a/src/leveldb/table/iterator.cc +++ /dev/null @@ -1,67 +0,0 @@ -// Copyright (c) 2011 The LevelDB Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. See the AUTHORS file for names of contributors. - -#include "leveldb/iterator.h" - -namespace leveldb { - -Iterator::Iterator() { - cleanup_.function = NULL; - cleanup_.next = NULL; -} - -Iterator::~Iterator() { - if (cleanup_.function != NULL) { - (*cleanup_.function)(cleanup_.arg1, cleanup_.arg2); - for (Cleanup* c = cleanup_.next; c != NULL; ) { - (*c->function)(c->arg1, c->arg2); - Cleanup* next = c->next; - delete c; - c = next; - } - } -} - -void Iterator::RegisterCleanup(CleanupFunction func, void* arg1, void* arg2) { - assert(func != NULL); - Cleanup* c; - if (cleanup_.function == NULL) { - c = &cleanup_; - } else { - c = new Cleanup; - c->next = cleanup_.next; - cleanup_.next = c; - } - c->function = func; - c->arg1 = arg1; - c->arg2 = arg2; -} - -namespace { -class EmptyIterator : public Iterator { - public: - EmptyIterator(const Status& s) : status_(s) { } - virtual bool Valid() const { return false; } - virtual void Seek(const Slice& target) { } - virtual void SeekToFirst() { } - virtual void SeekToLast() { } - virtual void Next() { assert(false); } - virtual void Prev() { assert(false); } - Slice key() const { assert(false); return Slice(); } - Slice value() const { assert(false); return Slice(); } - virtual Status status() const { return status_; } - private: - Status status_; -}; -} // namespace - -Iterator* NewEmptyIterator() { - return new EmptyIterator(Status::OK()); -} - -Iterator* NewErrorIterator(const Status& status) { - return new EmptyIterator(status); -} - -} // namespace leveldb |