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From: Paolo Bonzini <pbonzini@redhat.com>
To: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Cc: libaiqing@huawei.com, mdroth@linux.vnet.ibm.com,
	stefanha@gmail.com, qemu-devel@nongnu.org,
	lcapitulino@redhat.com, vrozenfe@redhat.com,
	seiji.aguchi@hds.com, areis@redhat.com
Subject: Re: [Qemu-devel] [PATCH v4 06/10] qemu-ga: Add Windows VSS provider to quiesce applications on fsfreeze
Date: Tue, 25 Jun 2013 23:15:32 +0200	[thread overview]
Message-ID: <51CA0874.1000402@redhat.com> (raw)
In-Reply-To: <20130606150645.10486.23215.stgit@hds.com>

Il 06/06/2013 17:06, Tomoki Sekiyama ha scritto:
> +STDAPI VSSCheckOSVersion(void);
> +
> +STDAPI COMRegister(void);
> +STDAPI COMUnregister(void);
> +
> +STDAPI DllRegisterServer(void);
> +STDAPI DllUnregisterServer(void);

Can you explain the difference between COMRegister/COMUnregister and
DllRegisterServer/DllUnregisterServer (and why the COM+ part need not be
done by regsvr32)?  Also, why does COMUnregister call
DllUnregisterServer but COMRegister does not call DllRegisterServer?

Also, is it needed to call VSSCheckOSVersion from the requestor?  I
would think that checking VSSAPI.DLL is stronger than checking the
version, and indeed you do that check too.

Sorry for the probably stupid questions, COM stuff is way beyond my
Windows knowledge.

Paolo

  parent reply	other threads:[~2013-06-25 21:15 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-06 15:06 [Qemu-devel] [PATCH v4 00/10] qemu-ga: fsfreeze on Windows using VSS Tomoki Sekiyama
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 01/10] configure: Support configuring c++ compiler Tomoki Sekiyama
2013-06-18 10:17   ` Paolo Bonzini
2013-06-25  8:15   ` Laszlo Ersek
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 02/10] Add c++ keywords to QAPI helper script Tomoki Sekiyama
2013-06-25  8:16   ` Laszlo Ersek
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 03/10] checkpatch.pl: check .cpp files Tomoki Sekiyama
2013-06-25  8:17   ` Laszlo Ersek
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 04/10] Add a script to extract VSS SDK headers on POSIX system Tomoki Sekiyama
2013-06-25  8:30   ` Laszlo Ersek
2013-06-25 15:01   ` Laszlo Ersek
2013-06-25 15:01     ` Paolo Bonzini
2013-06-26 10:52       ` Laszlo Ersek
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 05/10] qemu-ga: Add configure options to specify path to Windows/VSS SDK Tomoki Sekiyama
2013-06-25 11:16   ` Laszlo Ersek
2013-06-28 10:43     ` Daniel P. Berrange
2013-06-28 10:54       ` Paolo Bonzini
2013-06-28 11:01         ` Daniel P. Berrange
2013-06-28 11:18           ` Paolo Bonzini
2013-06-28 11:30             ` Daniel P. Berrange
2013-06-28 12:18               ` Paolo Bonzini
2013-06-28 11:05       ` Laszlo Ersek
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 06/10] qemu-ga: Add Windows VSS provider to quiesce applications on fsfreeze Tomoki Sekiyama
2013-06-25 16:03   ` Laszlo Ersek
2013-06-25 16:19     ` Paolo Bonzini
2013-06-25 18:23     ` Tomoki Sekiyama
2013-06-25 18:59       ` Paolo Bonzini
2013-06-25 19:28         ` Tomoki Sekiyama
2013-06-25 19:52       ` Laszlo Ersek
2013-06-26 14:32     ` Laszlo Ersek
2013-06-26 21:27       ` Paolo Bonzini
2013-06-26 22:09       ` Tomoki Sekiyama
2013-06-27 15:01       ` Laszlo Ersek
2013-06-27 22:25         ` Tomoki Sekiyama
2013-06-28  7:05           ` Paolo Bonzini
2013-06-28 10:40             ` Laszlo Ersek
2013-06-28 10:40               ` Paolo Bonzini
2013-06-28 17:18                 ` Tomoki Sekiyama
2013-06-28 10:44           ` Laszlo Ersek
2013-06-25 21:15   ` Paolo Bonzini [this message]
2013-06-25 22:31     ` Tomoki Sekiyama
2013-06-26  5:59       ` Paolo Bonzini
2013-06-26 14:13         ` Tomoki Sekiyama
2013-06-30 13:16       ` Gal Hammer
2013-07-01 18:57         ` Tomoki Sekiyama
2013-07-02 12:36           ` Gal Hammer
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 07/10] qemu-ga: Add Windows VSS requester to quiesce applications and filesystems Tomoki Sekiyama
2013-06-28 18:01   ` Laszlo Ersek
2013-06-28 18:34     ` Laszlo Ersek
2013-06-30  1:21     ` Tomoki Sekiyama
2013-07-01  8:31       ` Laszlo Ersek
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 08/10] qemu-ga: call Windows VSS requester in fsfreeze command handler Tomoki Sekiyama
2013-07-01 13:29   ` Laszlo Ersek
2013-07-01 17:48     ` Eric Blake
2013-07-01 17:59     ` Tomoki Sekiyama
2013-07-02  6:36       ` Laszlo Ersek
2013-07-02 14:09         ` Luiz Capitulino
2013-07-02 14:44           ` Laszlo Ersek
2013-07-02 15:16             ` Luiz Capitulino
2013-07-02 15:28               ` Laszlo Ersek
2013-07-02 14:58         ` Michael Roth
2013-06-06 15:06 ` [Qemu-devel] [PATCH v4 09/10] qemu-ga: install Windows VSS provider on `qemu-ga -s install' Tomoki Sekiyama
2013-07-01 14:50   ` Laszlo Ersek
2013-07-01 17:59     ` Tomoki Sekiyama
2013-06-06 15:07 ` [Qemu-devel] [PATCH v4 10/10] QMP/qemu-ga-client: make timeout longer for guest-fsfreeze-freeze command Tomoki Sekiyama
2013-06-18 10:17   ` Paolo Bonzini
2013-07-01 15:02   ` Laszlo Ersek
2013-06-10  9:26 ` [Qemu-devel] [PATCH v4 00/10] qemu-ga: fsfreeze on Windows using VSS Stefan Hajnoczi
2013-06-24 19:30 ` Tomoki Sekiyama
2013-06-24 21:13   ` Laszlo Ersek

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