Import wiredtiger-wiredtiger-2.7.0-559-g07966a4.tar.gz from wiredtiger branch mongodb-3.2

ref: 3c2ad56..07966a4

WT-1517       schema format edge cases
WT-1801       Add a directory sync after rollback of a WT_SESSION::rename operation
WT-2060       Simplify aggregation of statistics
WT-2073       metadata cleanups
WT-2099       Seeing memory underflow messages
WT-2113       truncate01 sometimes fails
WT-2142       Connection cleanup in Python tests
WT-2177       Add an optional per-thread seed to random number generator
WT-2198       bulk load and column store appends
WT-2216       simplify row-store search loop slightly
WT-2225       New split code performance impact
WT-2231       pinned page cursor searches could check parent keys
WT-2235       wt printlog option without unicode
WT-2242       WiredTiger treats dead trees the same as other trees in eviction
WT-2244       Trigger in-memory splits sooner
WT-2245       WTPERF Truncate has no ability to catch up when it falls behind
WT-2246       column-store append searches the leaf page; the maximum record number fails CRUD operations
WT-2247       variable-length column-store in-memory page splits
WT-2256       WTPERFs throttle option fires in bursts
WT-2257       wtperf doesn't handle overriding workload config
WT-2258       WiredTiger preloads pages even when direct-IO is configured.
WT-2259       __wt_evict_file_exclusive_on() should clear WT_BTREE_NO_EVICTION on error
WT-2260       Workloads evict internal pages unexpectedly
WT-2262       Random sampling is skewed by tree shape
WT-2265       Wiredtiger related change in ppc64le specific code block in gcc.h
WT-2266       Add wtperf config to set if perf thresholds are fatal
WT-2267       Improve wtperf throttling implementation to provide steady load
WT-2269       wtperf should dump its config everytime it runs
WT-2272       Stress test assertion in the sweep server
WT-2275       broken DB after application crash
WT-2276       tool to decode checkpoint addr
WT-2277       Remove WT check against big-endian systems
WT-2279       Define WT_PAUSE(), WT_FULL_BARRIER(), etc when s390x is defined
WT-2281       wtperf smoke.sh fails on ppc64le
WT-2282       error in wt_txn_update_oldest verbose message test
WT-2283       retry in txn_update_oldest results in a hang
WT-2284       Repeated macro definition
WT-2285       configure should set BUFFER_ALIGNMENT_DEFAULT to 4kb on linux
WT-2287       WT_SESSION.rebalance
WT-2289       failure in fast key check
WT-2290       WT_SESSION.compact could be more effective.
WT-2291       Random cursor walk inefficient in skip list only trees
WT-2295       WT_SESSION.create does a full-scan of the main table
WT-2296       New log algorithm needs improving for sync/flush settings
WT-2297       Fix off-by-one error in Huffman config file parsing
WT-2299       upper-level WiredTiger code is reaching into the block manager
WT-2301       Add reading a range to wtperf
WT-2303       Build warning in wtperf
WT-2304       wtperf crash dumping config
WT-2305       Fix coverity scan issues on 23/12/2015
WT-2307       Internal page splits can corrupt cursor iteration
WT-2308       custom extractor for ref_cursors in join cursor
WT-2311       Support Sparc
WT-2312       re-creating a deleted column-store page can corrupt the in-memory tree
WT-2313       sweep-server: conn_dhandle.c, 610: dhandle != conn->cache->evict_file_next
WT-2314       page-swap error handling is inconsistent
WT-2316       stress test failure: WT_CURSOR.prev out-of-order returns
WT-2320       Only check copyright when cutting releases
WT-2321       WT-2321: race between eviction and worker threads on the eviction queue
WT-2326       Change WTPERF to use new memory allocation functions instead of the standard
WT-2328       schema drop does direct unlink, it should use a block manager interface.
WT-2331       Checking of search() result for reference cursors before join()
WT-2332       Bug in logging write-no-sync mode
WT-2333       Add a flag so drop doesn't block
WT-2335       NULL pointer crash in config_check_search with invalid configuration string
WT-2338       Disable using pre-allocated log files when backup cursor is open
WT-2339       format post-rebalance verify failure (stress run #11586)
WT-2340       Add logging guarantee assertions, whitespace
WT-2342       Enhance wtperf to support background create and drop operations
WT-2344       OS X compiler warning
WT-2347       Java: schema format edge cases
WT-2348       xargs -P isn't portable
WT-2355       Fix minor scratch buffer usage in logging
SERVER-21833  Compact does not release space to the system with WiredTiger
SERVER-21887  $sample takes disproportionately long time on newly created collection
SERVER-22064  Coverity analysis defect 77699: Unchecked return value
SERVER-21944  WiredTiger changes for 3.2.2

1 files changed, 96 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/api/leveldb/leveldb/util/env.cc b/src/third_party/wiredtiger/api/leveldb/leveldb/util/env.cc
new file mode 100644
index 00000000000..00a04f0dc3e
--- /dev/null
+++ b/src/third_party/wiredtiger/api/leveldb/leveldb/util/env.cc
@@ -0,0 +1,96 @@
+// 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_wt.h"
+
+namespace leveldb {
+
+Env::~Env() {
+}
+
+SequentialFile::~SequentialFile() {
+}
+
+RandomAccessFile::~RandomAccessFile() {
+}
+
+WritableFile::~WritableFile() {
+}
+
+Logger::~Logger() {
+}
+
+FileLock::~FileLock() {
+}
+
+void Log(Logger* info_log, const char* format, ...) {
+  if (info_log != NULL) {
+    va_list ap;
+    va_start(ap, format);
+    info_log->Logv(format, ap);
+    va_end(ap);
+  }
+}
+
+static Status DoWriteStringToFile(Env* env, const Slice& data,
+                                  const std::string& fname,
+                                  bool should_sync) {
+  WritableFile* file;
+  Status s = env->NewWritableFile(fname, &file);
+  if (!s.ok()) {
+    return s;
+  }
+  s = file->Append(data);
+  if (s.ok() && should_sync) {
+    s = file->Sync();
+  }
+  if (s.ok()) {
+    s = file->Close();
+  }
+  delete file;  // Will auto-close if we did not close above
+  if (!s.ok()) {
+    env->DeleteFile(fname);
+  }
+  return s;
+}
+
+Status WriteStringToFile(Env* env, const Slice& data,
+                         const std::string& fname) {
+  return DoWriteStringToFile(env, data, fname, false);
+}
+
+Status WriteStringToFileSync(Env* env, const Slice& data,
+                             const std::string& fname) {
+  return DoWriteStringToFile(env, data, fname, true);
+}
+
+Status ReadFileToString(Env* env, const std::string& fname, std::string* data) {
+  data->clear();
+  SequentialFile* file;
+  Status s = env->NewSequentialFile(fname, &file);
+  if (!s.ok()) {
+    return s;
+  }
+  static const int kBufferSize = 8192;
+  char* space = new char[kBufferSize];
+  while (true) {
+    Slice fragment;
+    s = file->Read(kBufferSize, &fragment, space);
+    if (!s.ok()) {
+      break;
+    }
+    data->append(fragment.data(), fragment.size());
+    if (fragment.empty()) {
+      break;
+    }
+  }
+  delete[] space;
+  delete file;
+  return s;
+}
+
+EnvWrapper::~EnvWrapper() {
+}
+
+}  // namespace leveldb