The Tor Browser: netwerk/base/src/nsTemporaryFileInputStream.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef nsTemporaryFileInputStream_h__

     7 #define nsTemporaryFileInputStream_h__

     9 #include "mozilla/Mutex.h"

    10 #include "nsIInputStream.h"

    11 #include "nsAutoPtr.h"

    12 #include "prio.h"

    14 class nsTemporaryFileInputStream : public nsIInputStream

    15 {

    16 public:

    17   //used to release a PRFileDesc

    18   class FileDescOwner

    19   {

    20     friend class nsTemporaryFileInputStream;

    21   public:

    22     NS_INLINE_DECL_THREADSAFE_REFCOUNTING(FileDescOwner)

    23     FileDescOwner(PRFileDesc* aFD)

    24       : mFD(aFD),

    25         mMutex("FileDescOwner::mMutex")

    26     {

    27       MOZ_ASSERT(aFD);

    28     }

    29     ~FileDescOwner()

    30     {

    31       PR_Close(mFD);

    32     }

    33     mozilla::Mutex& FileMutex() { return mMutex; }

    35   private:

    36     PRFileDesc* mFD;

    37     mozilla::Mutex mMutex;

    38   };

    40   nsTemporaryFileInputStream(FileDescOwner* aFileDescOwner, uint64_t aStartPos, uint64_t aEndPos);

    42   virtual ~nsTemporaryFileInputStream() { }

    44   NS_DECL_THREADSAFE_ISUPPORTS

    45   NS_DECL_NSIINPUTSTREAM

    47 private:

    48   nsRefPtr<FileDescOwner> mFileDescOwner;

    49   uint64_t mStartPos;

    50   uint64_t mEndPos;

    51   bool mClosed;

    52 };

    54 #endif // nsTemporaryFileInputStream_h__

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