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--HG-- rename : dom/base/BlobSet.cpp => dom/file/BlobSet.cpp rename : dom/base/BlobSet.h => dom/file/BlobSet.h rename : dom/base/File.cpp => dom/file/File.cpp rename : dom/base/File.h => dom/file/File.h rename : dom/base/FileList.cpp => dom/file/FileList.cpp rename : dom/base/FileList.h => dom/file/FileList.h rename : dom/base/FileReader.cpp => dom/file/FileReader.cpp rename : dom/base/FileReader.h => dom/file/FileReader.h rename : dom/base/MultipartBlobImpl.cpp => dom/file/MultipartBlobImpl.cpp rename : dom/base/MultipartBlobImpl.h => dom/file/MultipartBlobImpl.h rename : dom/base/MutableBlobStorage.cpp => dom/file/MutableBlobStorage.cpp rename : dom/base/MutableBlobStorage.h => dom/file/MutableBlobStorage.h rename : dom/base/MutableBlobStreamListener.cpp => dom/file/MutableBlobStreamListener.cpp rename : dom/base/MutableBlobStreamListener.h => dom/file/MutableBlobStreamListener.h rename : dom/ipc/Blob.cpp => dom/file/ipc/Blob.cpp rename : dom/ipc/BlobChild.h => dom/file/ipc/BlobChild.h rename : dom/ipc/BlobParent.h => dom/file/ipc/BlobParent.h rename : dom/ipc/BlobTypes.ipdlh => dom/file/ipc/BlobTypes.ipdlh rename : dom/ipc/PBlob.ipdl => dom/file/ipc/PBlob.ipdl rename : dom/ipc/PBlobStream.ipdl => dom/file/ipc/PBlobStream.ipdl rename : dom/ipc/nsIRemoteBlob.h => dom/file/ipc/nsIRemoteBlob.h rename : dom/base/nsHostObjectProtocolHandler.cpp => dom/file/nsHostObjectProtocolHandler.cpp rename : dom/base/nsHostObjectProtocolHandler.h => dom/file/nsHostObjectProtocolHandler.h rename : dom/base/nsHostObjectURI.cpp => dom/file/nsHostObjectURI.cpp rename : dom/base/nsHostObjectURI.h => dom/file/nsHostObjectURI.h rename : dom/base/nsIDOMBlob.idl => dom/file/nsIDOMBlob.idl rename : dom/base/nsIDOMFileList.idl => dom/file/nsIDOMFileList.idl rename : dom/base/test/create_file_objects.js => dom/file/tests/create_file_objects.js rename : dom/base/test/file_blobURL_expiring.html => dom/file/tests/file_blobURL_expiring.html rename : dom/base/test/file_mozfiledataurl_audio.ogg => dom/file/tests/file_mozfiledataurl_audio.ogg rename : dom/base/test/file_mozfiledataurl_doc.html => dom/file/tests/file_mozfiledataurl_doc.html rename : dom/base/test/file_mozfiledataurl_img.jpg => dom/file/tests/file_mozfiledataurl_img.jpg rename : dom/base/test/file_mozfiledataurl_inner.html => dom/file/tests/file_mozfiledataurl_inner.html rename : dom/base/test/file_mozfiledataurl_text.txt => dom/file/tests/file_mozfiledataurl_text.txt rename : dom/base/test/file_nonascii_blob_url.html => dom/file/tests/file_nonascii_blob_url.html rename : dom/base/test/fileapi_chromeScript.js => dom/file/tests/fileapi_chromeScript.js rename : dom/base/test/fileutils.js => dom/file/tests/fileutils.js rename : dom/base/test/test_blobURL_expiring.html => dom/file/tests/test_blobURL_expiring.html rename : dom/base/test/test_blob_fragment_and_query.html => dom/file/tests/test_blob_fragment_and_query.html rename : dom/base/test/test_blobconstructor.html => dom/file/tests/test_blobconstructor.html rename : dom/base/test/test_file_from_blob.html => dom/file/tests/test_file_from_blob.html rename : dom/base/test/test_file_negative_date.html => dom/file/tests/test_file_negative_date.html rename : dom/base/test/test_fileapi.html => dom/file/tests/test_fileapi.html rename : dom/base/test/test_fileapi_slice.html => dom/file/tests/test_fileapi_slice.html rename : dom/base/test/test_ipc_messagemanager_blob.html => dom/file/tests/test_ipc_messagemanager_blob.html rename : dom/base/test/test_mozfiledataurl.html => dom/file/tests/test_mozfiledataurl.html rename : dom/base/test/test_nonascii_blob_url.html => dom/file/tests/test_nonascii_blob_url.html
99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_MutableBlobStorage_h
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#define mozilla_dom_MutableBlobStorage_h
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#include "mozilla/RefPtr.h"
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#include "prio.h"
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namespace mozilla {
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namespace dom {
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class Blob;
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class BlobImpl;
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class MutableBlobStorage;
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class MutableBlobStorageCallback
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{
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public:
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NS_IMETHOD_(MozExternalRefCountType) AddRef(void) = 0;
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NS_IMETHOD_(MozExternalRefCountType) Release(void) = 0;
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virtual void BlobStoreCompleted(MutableBlobStorage* aBlobStorage,
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Blob* aBlob,
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nsresult aRv) = 0;
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};
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// This class is main-thread only.
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class MutableBlobStorage final
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{
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MutableBlobStorage);
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enum MutableBlobStorageType
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{
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eOnlyInMemory,
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eCouldBeInTemporaryFile,
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};
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explicit MutableBlobStorage(MutableBlobStorageType aType);
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nsresult Append(const void* aData, uint32_t aLength);
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// This method can be called just once.
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// The callback will be called when the Blob is ready.
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// The return value is the total size of the blob, when created.
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uint64_t GetBlobWhenReady(nsISupports* aParent,
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const nsACString& aContentType,
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MutableBlobStorageCallback* aCallback);
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void TemporaryFileCreated(PRFileDesc* aFD);
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void CreateBlobAndRespond(already_AddRefed<nsISupports> aParent,
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const nsACString& aContentType,
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already_AddRefed<MutableBlobStorageCallback> aCallback);
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void ErrorPropagated(nsresult aRv);
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private:
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~MutableBlobStorage();
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bool ExpandBufferSize(uint64_t aSize);
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bool ShouldBeTemporaryStorage(uint64_t aSize) const;
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nsresult MaybeCreateTemporaryFile();
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static nsresult DispatchToIOThread(Runnable* aRunnable);
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// All these variables are touched on the main thread only.
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void* mData;
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uint64_t mDataLen;
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uint64_t mDataBufferLen;
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enum StorageState {
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eKeepInMemory,
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eInMemory,
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eWaitingForTemporaryFile,
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eInTemporaryFile,
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eClosed
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};
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StorageState mStorageState;
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PRFileDesc* mFD;
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nsresult mErrorResult;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_MutableBlobStorage_h
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