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419a57b1bc
Summary: 1. Enabled a number of additional C++ compiler warnings in Eden. 2. Fixed warnings-turned-errors that resulted from this change. Reviewed By: simpkins Differential Revision: D8132543 fbshipit-source-id: 2290ffaaab55024d582e29201a1bcaa1152e6b3e
105 lines
3.9 KiB
C++
105 lines
3.9 KiB
C++
/*
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*/
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#pragma once
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#include "common/stats/ThreadLocalStats.h"
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namespace folly {
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template <class T, class Tag, class AccessMode>
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class ThreadLocal;
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}
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namespace facebook {
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namespace eden {
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/**
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* A tag class for using with folly::ThreadLocal when storing EdenStats.
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*/
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class EdenStatsTag {};
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class EdenStats;
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using ThreadLocalEdenStats = folly::ThreadLocal<EdenStats, EdenStatsTag, void>;
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/**
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* EdenStats contains various thread-local stats structures.
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*
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* Each EdenStats object should only be used from a single thread.
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* The ThreadLocalEdenStats object should be used to maintain one EdenStats
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* object for each thread that needs to access/update the stats.
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*/
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class EdenStats : public facebook::stats::ThreadLocalStatsT<
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facebook::stats::TLStatsThreadSafe> {
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public:
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using Histogram = TLHistogram;
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explicit EdenStats();
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// We track latency in units of microseconds, hence the _us suffix
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// in the histogram names below.
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Histogram lookup{createHistogram("fuse.lookup_us")};
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Histogram forget{createHistogram("fuse.forget_us")};
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Histogram getattr{createHistogram("fuse.getattr_us")};
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Histogram setattr{createHistogram("fuse.setattr_us")};
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Histogram readlink{createHistogram("fuse.readlink_us")};
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Histogram mknod{createHistogram("fuse.mknod_us")};
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Histogram mkdir{createHistogram("fuse.mkdir_us")};
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Histogram unlink{createHistogram("fuse.unlink_us")};
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Histogram rmdir{createHistogram("fuse.rmdir_us")};
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Histogram symlink{createHistogram("fuse.symlink_us")};
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Histogram rename{createHistogram("fuse.rename_us")};
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Histogram link{createHistogram("fuse.link_us")};
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Histogram open{createHistogram("fuse.open_us")};
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Histogram read{createHistogram("fuse.read_us")};
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Histogram write{createHistogram("fuse.write_us")};
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Histogram flush{createHistogram("fuse.flush_us")};
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Histogram release{createHistogram("fuse.release_us")};
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Histogram fsync{createHistogram("fuse.fsync_us")};
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Histogram opendir{createHistogram("fuse.opendir_us")};
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Histogram readdir{createHistogram("fuse.readdir_us")};
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Histogram releasedir{createHistogram("fuse.releasedir_us")};
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Histogram fsyncdir{createHistogram("fuse.fsyncdir_us")};
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Histogram statfs{createHistogram("fuse.statfs_us")};
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Histogram setxattr{createHistogram("fuse.setxattr_us")};
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Histogram getxattr{createHistogram("fuse.getxattr_us")};
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Histogram listxattr{createHistogram("fuse.listxattr_us")};
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Histogram removexattr{createHistogram("fuse.removexattr_us")};
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Histogram access{createHistogram("fuse.access_us")};
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Histogram create{createHistogram("fuse.create_us")};
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Histogram bmap{createHistogram("fuse.bmap_us")};
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Histogram ioctl{createHistogram("fuse.ioctl_us")};
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Histogram poll{createHistogram("fuse.poll_us")};
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Histogram forgetmulti{createHistogram("fuse.forgetmulti_us")};
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// Since we can potentially finish a request in a different
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// thread from the one used to initiate it, we use HistogramPtr
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// as a helper for referencing the pointer-to-member that we
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// want to update at the end of the request.
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using HistogramPtr = Histogram EdenStats::*;
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/** Record a the latency for an operation.
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* item is the pointer-to-member for one of the histograms defined
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* above.
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* elapsed is the duration of the operation, measured in microseconds.
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* now is the current steady clock value in seconds.
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* (Once we open source the common stats code we can eliminate the
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* now parameter from this method). */
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void recordLatency(
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HistogramPtr item,
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std::chrono::microseconds elapsed,
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std::chrono::seconds now);
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private:
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Histogram createHistogram(const std::string& name);
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};
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} // namespace eden
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} // namespace facebook
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