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e368dc9c85
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find . ! -wholename "*nsprpub*" \
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! -name nsXPCOMCID.h \
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-o -iname "*.c" \
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123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_file_metadatahelper_h__
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#define mozilla_dom_file_metadatahelper_h__
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#include "FileCommon.h"
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#include "nsIFileStreams.h"
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#include "DictionaryHelpers.h"
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#include "AsyncHelper.h"
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#include "FileHelper.h"
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class nsIFileStream;
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BEGIN_FILE_NAMESPACE
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class MetadataHelper;
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class MetadataParameters
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{
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friend class MetadataHelper;
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public:
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MetadataParameters)
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nsresult
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Init(JSContext* aCx, const jsval* aVal)
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{
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return mConfig.Init(aCx, aVal);
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}
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void
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Init(bool aRequestSize, bool aRequestLastModified)
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{
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mConfig.size = aRequestSize;
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mConfig.lastModified = aRequestLastModified;
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}
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bool
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IsConfigured() const
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{
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return mConfig.size || mConfig.lastModified;
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}
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bool
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SizeRequested() const
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{
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return mConfig.size;
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}
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bool
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LastModifiedRequested() const
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{
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return mConfig.lastModified;
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}
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uint64_t
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Size() const
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{
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return mSize;
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}
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int64_t
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LastModified() const
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{
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return mLastModified;
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}
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private:
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DOMFileMetadataParameters mConfig;
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uint64_t mSize;
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int64_t mLastModified;
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};
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class MetadataHelper : public FileHelper
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{
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public:
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MetadataHelper(LockedFile* aLockedFile,
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FileRequest* aFileRequest,
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MetadataParameters* aParams)
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: FileHelper(aLockedFile, aFileRequest),
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mParams(aParams)
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{ }
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nsresult
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DoAsyncRun(nsISupports* aStream);
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nsresult
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GetSuccessResult(JSContext* aCx, jsval* aVal);
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protected:
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class AsyncMetadataGetter : public AsyncHelper
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{
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public:
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AsyncMetadataGetter(nsISupports* aStream, MetadataParameters* aParams,
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bool aReadWrite)
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: AsyncHelper(aStream),
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mParams(aParams), mReadWrite(aReadWrite)
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{ }
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protected:
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nsresult
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DoStreamWork(nsISupports* aStream);
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private:
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nsRefPtr<MetadataParameters> mParams;
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bool mReadWrite;
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};
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nsRefPtr<MetadataParameters> mParams;
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};
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END_FILE_NAMESPACE
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#endif // mozilla_dom_file_metadatahelper_h__
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