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/profiler/core/ProfileBuffer.cpp | 89 -----------------------------------
 1 file changed, 89 deletions(-)
 delete mode 100644 tools/profiler/core/ProfileBuffer.cpp

(limited to 'tools/profiler/core/ProfileBuffer.cpp')

diff --git a/tools/profiler/core/ProfileBuffer.cpp b/tools/profiler/core/ProfileBuffer.cpp
deleted file mode 100644
index a4b91d8fc..000000000
--- a/tools/profiler/core/ProfileBuffer.cpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* 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/. */
-
-#include "ProfileBuffer.h"
-
-ProfileBuffer::ProfileBuffer(int aEntrySize)
-  : mEntries(MakeUnique<ProfileEntry[]>(aEntrySize))
-  , mWritePos(0)
-  , mReadPos(0)
-  , mEntrySize(aEntrySize)
-  , mGeneration(0)
-{
-}
-
-ProfileBuffer::~ProfileBuffer()
-{
-  while (mStoredMarkers.peek()) {
-    delete mStoredMarkers.popHead();
-  }
-}
-
-// Called from signal, call only reentrant functions
-void ProfileBuffer::addTag(const ProfileEntry& aTag)
-{
-  mEntries[mWritePos++] = aTag;
-  if (mWritePos == mEntrySize) {
-    // Wrapping around may result in things referenced in the buffer (e.g.,
-    // JIT code addresses and markers) being incorrectly collected.
-    MOZ_ASSERT(mGeneration != UINT32_MAX);
-    mGeneration++;
-    mWritePos = 0;
-  }
-  if (mWritePos == mReadPos) {
-    // Keep one slot open.
-    mEntries[mReadPos] = ProfileEntry();
-    mReadPos = (mReadPos + 1) % mEntrySize;
-  }
-}
-
-void ProfileBuffer::addStoredMarker(ProfilerMarker *aStoredMarker) {
-  aStoredMarker->SetGeneration(mGeneration);
-  mStoredMarkers.insert(aStoredMarker);
-}
-
-void ProfileBuffer::deleteExpiredStoredMarkers() {
-  // Delete markers of samples that have been overwritten due to circular
-  // buffer wraparound.
-  uint32_t generation = mGeneration;
-  while (mStoredMarkers.peek() &&
-         mStoredMarkers.peek()->HasExpired(generation)) {
-    delete mStoredMarkers.popHead();
-  }
-}
-
-void ProfileBuffer::reset() {
-  mGeneration += 2;
-  mReadPos = mWritePos = 0;
-}
-
-#define DYNAMIC_MAX_STRING 8192
-
-char* ProfileBuffer::processDynamicTag(int readPos,
-                                       int* tagsConsumed, char* tagBuff)
-{
-  int readAheadPos = (readPos + 1) % mEntrySize;
-  int tagBuffPos = 0;
-
-  // Read the string stored in mTagData until the null character is seen
-  bool seenNullByte = false;
-  while (readAheadPos != mWritePos && !seenNullByte) {
-    (*tagsConsumed)++;
-    ProfileEntry readAheadEntry = mEntries[readAheadPos];
-    for (size_t pos = 0; pos < sizeof(void*); pos++) {
-      tagBuff[tagBuffPos] = readAheadEntry.mTagChars[pos];
-      if (tagBuff[tagBuffPos] == '\0' || tagBuffPos == DYNAMIC_MAX_STRING-2) {
-        seenNullByte = true;
-        break;
-      }
-      tagBuffPos++;
-    }
-    if (!seenNullByte)
-      readAheadPos = (readAheadPos + 1) % mEntrySize;
-  }
-  return tagBuff;
-}
-
-
-- 
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