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Re: [Qemu-devel] [PATCH 3/9] migration: Export qemu-file-channel.c funct


From: Juan Quintela
Subject: Re: [Qemu-devel] [PATCH 3/9] migration: Export qemu-file-channel.c functions in its own file
Date: Thu, 18 May 2017 15:26:23 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

Peter Xu <address@hidden> wrote:
> On Wed, May 17, 2017 at 05:47:50PM +0200, Juan Quintela wrote:
>> Signed-off-by: Juan Quintela <address@hidden>
>> ---
>>  include/migration/migration.h |  1 +
>>  include/migration/qemu-file.h |  4 ----
>>  migration/channel.c           |  1 +
>>  migration/colo.c              |  1 +
>>  migration/migration.c         |  1 +
>>  migration/qemu-file-channel.c |  1 +
>>  migration/qemu-file-channel.h | 21 +++++++++++++++++++++
>>  migration/rdma.c              |  1 +
>>  migration/savevm.c            |  1 +
>>  tests/test-vmstate.c          |  1 +
>>  10 files changed, 29 insertions(+), 4 deletions(-)
>>  create mode 100644 migration/qemu-file-channel.h
>> 
>> diff --git a/include/migration/migration.h b/include/migration/migration.h
>> index e831259..8280df1 100644
>> --- a/include/migration/migration.h
>> +++ b/include/migration/migration.h
>> @@ -19,6 +19,7 @@
>>  #include "qemu/thread.h"
>>  #include "qemu/notify.h"
>>  #include "migration/vmstate.h"
>> +#include "io/channel.h"
>
> Could I ask why we add this line here? I thought one of the main goals
> of this series is removing things from migration.h...



I remove from include/migration/qemu-file.h

-#include "io/channel.h"


Because all the QIOChannel functions in qemu-file.h are moved to
qemu-file-channel.h.

Great!

But migration/vmstate.h includes qemu-file.h

And migration.h includes vmstate.h

And migration.h has this functions:

void qemu_start_incoming_migration(const char *uri, Error **errp);
                                            QIOChannel *ioc,
                                            Error **errp);

void migration_tls_channel_connect(MigrationState *s,
                                   QIOChannel *ioc,
                                   const char *hostname,
                                   Error **errp);

And nothing else declares the QIOChannel.

So, the easy solution so far is to include this by now to maintain
compilation.

BTW, good catch.

So, I think that there is no other good solution to untangle the mess.

Later, Juan.






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