fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.6 KiB
54 lines
1.6 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
//
|
|
// 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 "db/malloc_stats.h"
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
#include <memory>
|
|
#include <string.h>
|
|
|
|
#include "port/jemalloc_helper.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
#ifdef ROCKSDB_JEMALLOC
|
|
|
|
struct MallocStatus {
|
|
char* cur;
|
|
char* end;
|
|
};
|
|
|
|
static void GetJemallocStatus(void* mstat_arg, const char* status) {
|
|
MallocStatus* mstat = reinterpret_cast<MallocStatus*>(mstat_arg);
|
|
size_t status_len = status ? strlen(status) : 0;
|
|
size_t buf_size = (size_t)(mstat->end - mstat->cur);
|
|
if (!status_len || status_len > buf_size) {
|
|
return;
|
|
}
|
|
|
|
snprintf(mstat->cur, buf_size, "%s", status);
|
|
mstat->cur += status_len;
|
|
}
|
|
void DumpMallocStats(std::string* stats) {
|
|
if (!HasJemalloc()) {
|
|
return;
|
|
}
|
|
MallocStatus mstat;
|
|
const unsigned int kMallocStatusLen = 1000000;
|
|
std::unique_ptr<char[]> buf{new char[kMallocStatusLen + 1]};
|
|
mstat.cur = buf.get();
|
|
mstat.end = buf.get() + kMallocStatusLen;
|
|
malloc_stats_print(GetJemallocStatus, &mstat, "");
|
|
stats->append(buf.get());
|
|
}
|
|
#else
|
|
void DumpMallocStats(std::string*) {}
|
|
#endif // ROCKSDB_JEMALLOC
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
#endif // !ROCKSDB_LITE
|
|
|