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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=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 mozilla_StreamBufferSourceImpl_h
#define mozilla_StreamBufferSourceImpl_h
#include "mozilla/StreamBufferSource.h"
#include "mozilla/Vector.h"
#include "nsTArray.h"
namespace mozilla {
class nsTArraySource final : public StreamBufferSource {
public:
explicit nsTArraySource(nsTArray<uint8_t>&& aArray)
: mArray(std::move(aArray)) {}
Span<const char> Data() override {
return Span{reinterpret_cast<const char*>(mArray.Elements()),
mArray.Length()};
}
bool Owning() override { return true; }
size_t SizeOfExcludingThisEvenIfShared(MallocSizeOf aMallocSizeOf) override {
return mArray.ShallowSizeOfExcludingThis(aMallocSizeOf);
}
private:
const nsTArray<uint8_t> mArray;
};
class nsCStringSource final : public StreamBufferSource {
public:
explicit nsCStringSource(nsACString&& aString)
: mString(std::move(aString)) {}
Span<const char> Data() override { return mString; }
nsresult GetData(nsACString& aString) override {
if (!aString.Assign(mString, fallible)) {
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
bool Owning() override { return true; }
size_t SizeOfExcludingThisIfUnshared(MallocSizeOf aMallocSizeOf) override {
return mString.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
}
size_t SizeOfExcludingThisEvenIfShared(MallocSizeOf aMallocSizeOf) override {
return mString.SizeOfExcludingThisEvenIfShared(aMallocSizeOf);
}
private:
const nsCString mString;
};
class nsBorrowedSource final : public StreamBufferSource {
public:
explicit nsBorrowedSource(Span<const char> aBuffer) : mBuffer(aBuffer) {}
Span<const char> Data() override { return mBuffer; }
bool Owning() override { return false; }
size_t SizeOfExcludingThisEvenIfShared(MallocSizeOf aMallocSizeOf) override {
return 0;
}
private:
const Span<const char> mBuffer;
};
class nsVectorSource final : public StreamBufferSource {
public:
explicit nsVectorSource(Vector<char>&& aBuffer)
: mBuffer(std::move(aBuffer)) {}
Span<const char> Data() override { return mBuffer; }
bool Owning() override { return true; }
size_t SizeOfExcludingThisEvenIfShared(MallocSizeOf aMallocSizeOf) override {
return mBuffer.sizeOfExcludingThis(aMallocSizeOf);
}
private:
const Vector<char> mBuffer;
};
} // namespace mozilla
#endif // mozilla_StreamBufferSourceImpl_h
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