tomFlowee
c63519fa47
The leveldb and univalue 3rd party libraries are not installed and not needed by anyone outside of the Hub. So move them there, making it easier for 3rd party usage.
89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "db/builder.h"
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#include "db/filename.h"
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#include "db/dbformat.h"
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#include "db/table_cache.h"
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#include "db/version_edit.h"
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#include "leveldb/db.h"
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#include "leveldb/env.h"
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#include "leveldb/iterator.h"
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namespace leveldb {
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Status BuildTable(const std::string& dbname,
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Env* env,
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const Options& options,
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TableCache* table_cache,
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Iterator* iter,
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FileMetaData* meta) {
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Status s;
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meta->file_size = 0;
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iter->SeekToFirst();
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std::string fname = TableFileName(dbname, meta->number);
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if (iter->Valid()) {
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WritableFile* file;
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s = env->NewWritableFile(fname, &file);
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if (!s.ok()) {
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return s;
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}
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TableBuilder* builder = new TableBuilder(options, file);
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meta->smallest.DecodeFrom(iter->key());
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for (; iter->Valid(); iter->Next()) {
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Slice key = iter->key();
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meta->largest.DecodeFrom(key);
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builder->Add(key, iter->value());
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}
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// Finish and check for builder errors
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if (s.ok()) {
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s = builder->Finish();
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if (s.ok()) {
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meta->file_size = builder->FileSize();
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assert(meta->file_size > 0);
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}
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} else {
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builder->Abandon();
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}
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delete builder;
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// Finish and check for file errors
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if (s.ok()) {
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s = file->Sync();
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}
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if (s.ok()) {
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s = file->Close();
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}
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delete file;
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file = NULL;
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if (s.ok()) {
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// Verify that the table is usable
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Iterator* it = table_cache->NewIterator(ReadOptions(),
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meta->number,
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meta->file_size);
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s = it->status();
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delete it;
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}
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}
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// Check for input iterator errors
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if (!iter->status().ok()) {
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s = iter->status();
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}
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if (s.ok() && meta->file_size > 0) {
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// Keep it
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} else {
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env->DeleteFile(fname);
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}
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return s;
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}
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} // namespace leveldb
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