From ac25827a87d86f1cf9e48aab6605f77a2c89041a Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Thu, 24 May 2018 14:06:04 +0200
Subject: Remove SPS profiler.

- Conditionals and code blocks. (MOZ_ENABLE_PROFILER_SPS)
- Stub out several profiler-only functions.
---
 tools/memory-profiler/MemoryProfiler.h | 159 ---------------------------------
 1 file changed, 159 deletions(-)
 delete mode 100644 tools/memory-profiler/MemoryProfiler.h

(limited to 'tools/memory-profiler/MemoryProfiler.h')

diff --git a/tools/memory-profiler/MemoryProfiler.h b/tools/memory-profiler/MemoryProfiler.h
deleted file mode 100644
index 85a378fb2..000000000
--- a/tools/memory-profiler/MemoryProfiler.h
+++ /dev/null
@@ -1,159 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef tools_profiler_MemoryProfiler_h
-#define tools_profiler_MemoryProfiler_h
-
-#include "nsIMemoryProfiler.h"
-
-#include "mozilla/StaticPtr.h"
-#include "mozilla/TimeStamp.h"
-
-#include "CompactTraceTable.h"
-#include "nsTArray.h"
-#include "prlock.h"
-
-#define MEMORY_PROFILER_CID                                     \
-  { 0xf976eaa2, 0xcc1f, 0x47ee,                                 \
-    { 0x81, 0x29, 0xb8, 0x26, 0x2a, 0x3d, 0xb6, 0xb2 } }
-
-#define MEMORY_PROFILER_CONTRACT_ID "@mozilla.org/tools/memory-profiler;1"
-
-struct PRLock;
-
-namespace mozilla {
-
-class NativeProfilerImpl;
-class GCHeapProfilerImpl;
-
-struct ProfilerForJSContext
-{
-  ProfilerForJSContext()
-    : mProfiler(nullptr)
-    , mEnabled(false)
-  {}
-  GCHeapProfilerImpl* mProfiler;
-  bool mEnabled;
-};
-using JSContextProfilerMap =
-  nsDataHashtable<nsClearingPtrHashKey<JSContext>, ProfilerForJSContext>;
-
-class MemoryProfiler final : public nsIMemoryProfiler
-{
-public:
-  NS_DECL_ISUPPORTS
-  NS_DECL_NSIMEMORYPROFILER
-
-private:
-  static void InitOnce();
-  ~MemoryProfiler() {}
-
-  // The accesses to other static member are guarded by sLock and
-  // sProfileContextCount.
-  static PRLock* sLock;
-  static uint32_t sProfileContextCount;
-
-  static StaticAutoPtr<NativeProfilerImpl> sNativeProfiler;
-  static StaticAutoPtr<JSContextProfilerMap> sJSContextProfilerMap;
-  static TimeStamp sStartTime;
-};
-
-// Allocation events to be reported.
-struct AllocEvent {
-  TimeStamp mTimestamp;
-  // index to a stacktrace singleton.
-  uint32_t mTraceIdx;
-  // Allocation size
-  int32_t mSize;
-
-  AllocEvent(uint32_t aTraceIdx, int32_t aSize, TimeStamp aTimestamp)
-    : mTimestamp(aTimestamp)
-    , mTraceIdx(aTraceIdx)
-    , mSize(aSize)
-  {}
-};
-
-// Index to allocation events but also a mark bit to be GC-able.
-struct AllocEntry {
-  uint32_t mEventIdx : 31;
-  bool mMarked : 1;
-
-  // Default constructor for uninitialized stack value required by
-  // getter methods.
-  AllocEntry()
-    : mEventIdx(0)
-    , mMarked(false)
-  {}
-  explicit AllocEntry(int aEventIdx)
-    : mEventIdx(aEventIdx)
-    , mMarked(false)
-  {}
-};
-
-using AllocMap = nsDataHashtable<nsClearingVoidPtrHashKey, AllocEntry>;
-
-class ProfilerImpl
-{
-public:
-  static nsTArray<nsCString> GetStacktrace();
-  static double DRandom();
-
-  ProfilerImpl();
-  virtual nsTArray<nsCString> GetNames() const = 0;
-  virtual nsTArray<TrieNode> GetTraces() const = 0;
-  virtual const nsTArray<AllocEvent>& GetEvents() const = 0;
-
-protected:
-  /**
-   * The sampler generates a random variable which conforms to a geometric
-   * distribution of probability p = 1 / mSampleSize to calculate the
-   * next-to-be-sampled byte directly; It avoids rolling a dice on each byte.
-   *
-   * Let Bn denote a Bernoulli process with first success on n-th trial, the
-   * cumulative distribution function of Bn is Cn = 1 - (1 - p) ^ n.
-   * Let U denote a uniformly distributed random variable in [0, 1).
-   * A geometric random variable can be generated by Cn's reverse function:
-   * G = floor(log(1 - U) / log(1 - p)).
-   *
-   * @param aSize the number of bytes seen
-   * @return the number of events sampled
-   */
-  size_t AddBytesSampled(uint32_t aBytes);
-
-  uint32_t mSampleSize;
-
-private:
-  uint32_t mRemainingBytes;
-  double mLog1minusP;
-};
-
-/*
- * This class is used to make sure the profile data is only accessed
- * on one thread at a time. Don't use mozilla::Mutex because we don't
- * want to allocate memory.
- */
-class AutoMPLock
-{
-public:
-  explicit AutoMPLock(PRLock* aLock)
-  {
-    MOZ_ASSERT(aLock);
-    mLock = aLock;
-    PR_Lock(mLock);
-  }
-
-  ~AutoMPLock()
-  {
-    PR_Unlock(mLock);
-  }
-
-private:
-  PRLock* mLock;
-};
-
-} // namespace mozilla
-
-#endif
-- 
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