xpcom/io/nsBinaryStream.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsBinaryStream_h___
   8 #define nsBinaryStream_h___
   9
  10 #include "nsCOMPtr.h"
  11 #include "nsAString.h"
  12 #include "nsIObjectInputStream.h"
  13 #include "nsIObjectOutputStream.h"
  14 #include "nsIStreamBufferAccess.h"
  15
  16 #define NS_BINARYOUTPUTSTREAM_CID        \
  17 { /* 86c37b9a-74e7-4672-844e-6e7dd83ba484 */         \
  18      0x86c37b9a,                                     \
  19      0x74e7,                                         \
  20      0x4672,                                         \
  21     {0x84, 0x4e, 0x6e, 0x7d, 0xd8, 0x3b, 0xa4, 0x84} \
  22 }
  23
  24 #define NS_BINARYOUTPUTSTREAM_CONTRACTID "@mozilla.org/binaryoutputstream;1"
  25
  26 // Derive from nsIObjectOutputStream so this class can be used as a superclass
  27 // by nsObjectOutputStream.
  28 class nsBinaryOutputStream MOZ_FINAL : public nsIObjectOutputStream
  29 {
  30 public:
  31   nsBinaryOutputStream()
  32   {
  33   }
  34
  35 protected:
  36   // nsISupports methods
  37   NS_DECL_ISUPPORTS
  38
  39   // nsIOutputStream methods
  40   NS_DECL_NSIOUTPUTSTREAM
  41
  42   // nsIBinaryOutputStream methods
  43   NS_DECL_NSIBINARYOUTPUTSTREAM
  44
  45   // nsIObjectOutputStream methods
  46   NS_DECL_NSIOBJECTOUTPUTSTREAM
  47
  48   // Call Write(), ensuring that all proffered data is written
  49   nsresult WriteFully(const char* aBuf, uint32_t aCount);
  50
  51   nsCOMPtr<nsIOutputStream>       mOutputStream;
  52   nsCOMPtr<nsIStreamBufferAccess> mBufferAccess;
  53
  54 private:
  55   // virtual dtor since subclasses call our Release()
  56   virtual ~nsBinaryOutputStream()
  57   {
  58   }
  59 };
  60
  61 #define NS_BINARYINPUTSTREAM_CID        \
  62 { /* c521a612-2aad-46db-b6ab-3b821fb150b1 */       \
  63    0xc521a612,                                     \
  64    0x2aad,                                         \
  65    0x46db,                                         \
  66   {0xb6, 0xab, 0x3b, 0x82, 0x1f, 0xb1, 0x50, 0xb1} \
  67 }
  68
  69 #define NS_BINARYINPUTSTREAM_CONTRACTID "@mozilla.org/binaryinputstream;1"
  70
  71 class nsBinaryInputStream MOZ_FINAL : public nsIObjectInputStream
  72 {
  73 public:
  74   nsBinaryInputStream()
  75   {
  76   }
  77
  78 protected:
  79   // nsISupports methods
  80   NS_DECL_ISUPPORTS
  81
  82   // nsIInputStream methods
  83   NS_DECL_NSIINPUTSTREAM
  84
  85   // nsIBinaryInputStream methods
  86   NS_DECL_NSIBINARYINPUTSTREAM
  87
  88   // nsIObjectInputStream methods
  89   NS_DECL_NSIOBJECTINPUTSTREAM
  90
  91   nsCOMPtr<nsIInputStream>        mInputStream;
  92   nsCOMPtr<nsIStreamBufferAccess> mBufferAccess;
  93
  94 private:
  95   // virtual dtor since subclasses call our Release()
  96   virtual ~nsBinaryInputStream()
  97   {
  98   }
  99 };
 100
 101 #endif // nsBinaryStream_h___