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rocksdb/util/iostats_context.cc

46 lines
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// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
#include <sstream>
#include "rocksdb/env.h"
#include "util/iostats_context_imp.h"
namespace rocksdb {
#ifndef IOS_CROSS_COMPILE
# ifdef _WIN32
__declspec(thread) IOStatsContext iostats_context;
# else
__thread IOStatsContext iostats_context;
# endif
#endif // IOS_CROSS_COMPILE
void IOStatsContext::Reset() {
thread_pool_id = Env::Priority::TOTAL;
bytes_read = 0;
bytes_written = 0;
open_nanos = 0;
allocate_nanos = 0;
write_nanos = 0;
read_nanos = 0;
range_sync_nanos = 0;
prepare_write_nanos = 0;
fsync_nanos = 0;
logger_nanos = 0;
}
#define OUTPUT(counter) #counter << " = " << counter << ", "
std::string IOStatsContext::ToString() const {
std::ostringstream ss;
ss << OUTPUT(thread_pool_id) << OUTPUT(bytes_read) << OUTPUT(bytes_written)
<< OUTPUT(open_nanos) << OUTPUT(allocate_nanos) << OUTPUT(write_nanos)
<< OUTPUT(read_nanos) << OUTPUT(range_sync_nanos) << OUTPUT(fsync_nanos)
<< OUTPUT(prepare_write_nanos) << OUTPUT(logger_nanos);
return ss.str();
}
} // namespace rocksdb