1 files changed, 52 insertions, 0 deletions
diff --git a/comm/mailnews/addrbook/src/nsMapiAddressBook.h b/comm/mailnews/addrbook/src/nsMapiAddressBook.h
new file mode 100644
index 0000000000..dd0463dba0
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+++ b/comm/mailnews/addrbook/src/nsMapiAddressBook.h
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 nsMapiAddressBook_h___
+#define nsMapiAddressBook_h___
+
+#include "mozilla/Attributes.h"
+#include "nsAbWinHelper.h"
+
+class nsMapiAddressBook : public nsAbWinHelper {
+ public:
+  nsMapiAddressBook(void);
+  virtual ~nsMapiAddressBook(void);
+
+ protected:
+  // Class members to handle the library/entry points
+  static HMODULE mLibrary;
+  static int32_t mLibUsage;
+  static LPMAPIINITIALIZE mMAPIInitialize;
+  static LPMAPIUNINITIALIZE mMAPIUninitialize;
+  static LPMAPIALLOCATEBUFFER mMAPIAllocateBuffer;
+  static LPMAPIFREEBUFFER mMAPIFreeBuffer;
+  static LPMAPILOGONEX mMAPILogonEx;
+  // Shared session and address book used by all instances.
+  // For reasons best left unknown, MAPI doesn't seem to like
+  // having different threads playing with supposedly different
+  // sessions and address books. They ll end up fighting over
+  // the same resources, with hangups and GPF resulting. Not nice.
+  // So it seems that if everybody (as long as some client is
+  // still alive) is using the same sessions and address books,
+  // MAPI feels better. And who are we to get in the way of MAPI
+  // happiness? Thus the following class members:
+  static BOOL mInitialized;
+  static BOOL mLogonDone;
+  static LPMAPISESSION mRootSession;
+  static LPADRBOOK mRootBook;
+
+  // Load the MAPI environment
+  BOOL Initialize(void);
+  // Allocation of a buffer for transmission to interfaces
+  virtual void AllocateBuffer(ULONG aByteCount, LPVOID* aBuffer) override;
+  // Destruction of a buffer provided by the interfaces
+  virtual void FreeBuffer(LPVOID aBuffer) override;
+  // Library management
+  static BOOL LoadMapiLibrary(void);
+  static void FreeMapiLibrary(void);
+
+ private:
+};
+
+#endif  // nsMapiAddressBook_h___