summaryrefslogtreecommitdiffstats
path: root/tools/memory-profiler/MemoryProfiler.h
diff options
context:
space:
mode:
authorwolfbeast <mcwerewolf@gmail.com>2018-05-24 14:06:04 +0200
committerwolfbeast <mcwerewolf@gmail.com>2018-05-24 14:06:04 +0200
commitac25827a87d86f1cf9e48aab6605f77a2c89041a (patch)
treec3533a008e606f4f6393e838b4305cf6d07f47d2 /tools/memory-profiler/MemoryProfiler.h
parentc8b38a18031f6ae0fca8b2bef73daa86f6f96ae8 (diff)
downloadUXP-ac25827a87d86f1cf9e48aab6605f77a2c89041a.tar
UXP-ac25827a87d86f1cf9e48aab6605f77a2c89041a.tar.gz
UXP-ac25827a87d86f1cf9e48aab6605f77a2c89041a.tar.lz
UXP-ac25827a87d86f1cf9e48aab6605f77a2c89041a.tar.xz
UXP-ac25827a87d86f1cf9e48aab6605f77a2c89041a.zip
Remove SPS profiler.
- Conditionals and code blocks. (MOZ_ENABLE_PROFILER_SPS) - Stub out several profiler-only functions.
Diffstat (limited to 'tools/memory-profiler/MemoryProfiler.h')
-rw-r--r--tools/memory-profiler/MemoryProfiler.h159
1 files changed, 0 insertions, 159 deletions
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