e45c9840d1
This changes how the `nsIStringInputStream` interface is initialized in C++ code to make it support larger stream sizes better. This involved moving away from using nsCString in some cases, as it has a maximum string length of approximately 2GiB. This also required changing the signature of one of the methods making it no longer JS-compatible. As the `setData` method was awkward to use from JS anyway, the method was split into two (one for C++ callers, and one for JS callers), and renamed. This required changes to the various JS callers. Differential Revision: https://phabricator.services.mozilla.com/D231982
101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
/* -*- 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
|