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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/profiler/core/ProfileJSONWriter.h
parentc8b38a18031f6ae0fca8b2bef73daa86f6f96ae8 (diff)
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Remove SPS profiler.
- Conditionals and code blocks. (MOZ_ENABLE_PROFILER_SPS) - Stub out several profiler-only functions.
Diffstat (limited to 'tools/profiler/core/ProfileJSONWriter.h')
-rw-r--r--tools/profiler/core/ProfileJSONWriter.h126
1 files changed, 0 insertions, 126 deletions
diff --git a/tools/profiler/core/ProfileJSONWriter.h b/tools/profiler/core/ProfileJSONWriter.h
deleted file mode 100644
index d9e2115f9..000000000
--- a/tools/profiler/core/ProfileJSONWriter.h
+++ /dev/null
@@ -1,126 +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/. */
-
-#ifndef PROFILEJSONWRITER_H
-#define PROFILEJSONWRITER_H
-
-#include <ostream>
-#include <string>
-#include <string.h>
-
-#include "mozilla/JSONWriter.h"
-#include "mozilla/UniquePtr.h"
-
-class SpliceableChunkedJSONWriter;
-
-// On average, profile JSONs are large enough such that we want to avoid
-// reallocating its buffer when expanding. Additionally, the contents of the
-// profile are not accessed until the profile is entirely written. For these
-// reasons we use a chunked writer that keeps an array of chunks, which is
-// concatenated together after writing is finished.
-class ChunkedJSONWriteFunc : public mozilla::JSONWriteFunc
-{
-public:
- friend class SpliceableJSONWriter;
-
- ChunkedJSONWriteFunc() {
- AllocChunk(kChunkSize);
- }
-
- bool IsEmpty() const {
- MOZ_ASSERT_IF(!mChunkPtr, !mChunkEnd &&
- mChunkList.length() == 0 &&
- mChunkLengths.length() == 0);
- return !mChunkPtr;
- }
-
- void Write(const char* aStr) override;
- mozilla::UniquePtr<char[]> CopyData() const;
- void Take(ChunkedJSONWriteFunc&& aOther);
-
-private:
- void AllocChunk(size_t aChunkSize);
-
- static const size_t kChunkSize = 4096 * 512;
-
- // Pointer for writing inside the current chunk.
- //
- // The current chunk is always at the back of mChunkList, i.e.,
- // mChunkList.back() <= mChunkPtr <= mChunkEnd.
- char* mChunkPtr;
-
- // Pointer to the end of the current chunk.
- //
- // The current chunk is always at the back of mChunkList, i.e.,
- // mChunkEnd >= mChunkList.back() + mChunkLengths.back().
- char* mChunkEnd;
-
- // List of chunks and their lengths.
- //
- // For all i, the length of the string in mChunkList[i] is
- // mChunkLengths[i].
- mozilla::Vector<mozilla::UniquePtr<char[]>> mChunkList;
- mozilla::Vector<size_t> mChunkLengths;
-};
-
-struct OStreamJSONWriteFunc : public mozilla::JSONWriteFunc
-{
- explicit OStreamJSONWriteFunc(std::ostream& aStream)
- : mStream(aStream)
- { }
-
- void Write(const char* aStr) override {
- mStream << aStr;
- }
-
- std::ostream& mStream;
-};
-
-class SpliceableJSONWriter : public mozilla::JSONWriter
-{
-public:
- explicit SpliceableJSONWriter(mozilla::UniquePtr<mozilla::JSONWriteFunc> aWriter)
- : JSONWriter(mozilla::Move(aWriter))
- { }
-
- void StartBareList(CollectionStyle aStyle = SingleLineStyle) {
- StartCollection(nullptr, "", aStyle);
- }
-
- void EndBareList() {
- EndCollection("");
- }
-
- void NullElements(uint32_t aCount) {
- for (uint32_t i = 0; i < aCount; i++) {
- NullElement();
- }
- }
-
- void Splice(const ChunkedJSONWriteFunc* aFunc);
- void Splice(const char* aStr);
-
- // Takes the chunks from aFunc and write them. If move is not possible
- // (e.g., using OStreamJSONWriteFunc), aFunc's chunks are copied and its
- // storage cleared.
- virtual void TakeAndSplice(ChunkedJSONWriteFunc* aFunc);
-};
-
-class SpliceableChunkedJSONWriter : public SpliceableJSONWriter
-{
-public:
- explicit SpliceableChunkedJSONWriter()
- : SpliceableJSONWriter(mozilla::MakeUnique<ChunkedJSONWriteFunc>())
- { }
-
- ChunkedJSONWriteFunc* WriteFunc() const {
- return static_cast<ChunkedJSONWriteFunc*>(JSONWriter::WriteFunc());
- }
-
- // Adopts the chunks from aFunc without copying.
- virtual void TakeAndSplice(ChunkedJSONWriteFunc* aFunc) override;
-};
-
-#endif // PROFILEJSONWRITER_H