dom/file/StreamBlobImpl.h
author Mike Hommey <mh+mozilla@glandium.org>
Fri, 11 Jan 2019 16:01:15 +0000
changeset 453570 daf50f25895db073e44d50fecf2e4f6fe873865d
parent 452536 83b0c68b0a852cda82448eeda4efcd5f62020eee
child 471248 57136f4e7b54a2956b71be4db549473f33bd22dc
permissions -rw-r--r--
Bug 1519307 - Add a new project to build useful parts of breakpad independently. r=froydnj With `ac_add_options --enable-project=tools/crashreporter` in a mozconfig, `./mach build` builds minidump_stackwalk, dump_syms and fileid. One caveat is that due to limitation in how the build system works currently, it's cumbersome to keep dump_syms as a host program for Gecko, and to make it a target program for this project. For now, keep it as a host program. We're not going to use it on automation, but it's still convenient to have for quick local builds (I've had to resort to awful hacks downstream). Differential Revision: https://phabricator.services.mozilla.com/D16299

/* -*- 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_dom_StreamBlobImpl_h
#define mozilla_dom_StreamBlobImpl_h

#include "BaseBlobImpl.h"
#include "nsIMemoryReporter.h"

namespace mozilla {
namespace dom {

class StreamBlobImpl final : public BaseBlobImpl, public nsIMemoryReporter {
  MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf)

 public:
  NS_DECL_ISUPPORTS_INHERITED
  NS_DECL_NSIMEMORYREPORTER

  static already_AddRefed<StreamBlobImpl> Create(
      already_AddRefed<nsIInputStream> aInputStream,
      const nsAString& aContentType, uint64_t aLength,
      const nsAString& aBlobImplType);

  static already_AddRefed<StreamBlobImpl> Create(
      already_AddRefed<nsIInputStream> aInputStream, const nsAString& aName,
      const nsAString& aContentType, int64_t aLastModifiedDate,
      uint64_t aLength, const nsAString& aBlobImplType);

  virtual void CreateInputStream(nsIInputStream** aStream,
                                 ErrorResult& aRv) override;

  virtual already_AddRefed<BlobImpl> CreateSlice(uint64_t aStart,
                                                 uint64_t aLength,
                                                 const nsAString& aContentType,
                                                 ErrorResult& aRv) override;

  virtual bool IsMemoryFile() const override { return true; }

  int64_t GetFileId() override { return mFileId; }

  void SetFileId(int64_t aFileId) { mFileId = aFileId; }

  void SetFullPath(const nsAString& aFullPath) { mFullPath = aFullPath; }

  void GetMozFullPathInternal(nsAString& aFullPath,
                              ErrorResult& aRv) const override {
    aFullPath = mFullPath;
  }

  void SetIsDirectory(bool aIsDirectory) { mIsDirectory = aIsDirectory; }

  bool IsDirectory() const override { return mIsDirectory; }

  size_t GetAllocationSize() const override;

  size_t GetAllocationSize(
      FallibleTArray<BlobImpl*>& aVisitedBlobImpls) const override {
    return GetAllocationSize();
  }

  void GetBlobImplType(nsAString& aBlobImplType) const override;

 private:
  StreamBlobImpl(already_AddRefed<nsIInputStream> aInputStream,
                 const nsAString& aContentType, uint64_t aLength,
                 const nsAString& aBlobImplType);

  StreamBlobImpl(already_AddRefed<nsIInputStream> aInputStream,
                 const nsAString& aName, const nsAString& aContentType,
                 int64_t aLastModifiedDate, uint64_t aLength,
                 const nsAString& aBlobImplType);

  ~StreamBlobImpl();

  void MaybeRegisterMemoryReporter();

  nsCOMPtr<nsIInputStream> mInputStream;

  nsString mFullPath;
  bool mIsDirectory;
  int64_t mFileId;
};

}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_StreamBlobImpl_h