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Commit 3c6b4e41 removed spice-experimental.h as this header was not
used, nor supposed to be used. However, QEMU had been including it
(without using any of its symbols) until commit v2.3.0-rc0~135^2~1
As this is fairly recent (Nov 2014), building older QEMUs with new
spice-server releases, or even bisecting QEMU will be broken as they
will be looking for a no-longer available header.
This commit readds a spice-experimental.h file, however it only contains
a #warning indicating this file is deprecated. This means older QEMU
will build now, but only if they were configured with --disable-werror.
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Remove unneded symbols that nobody should be using anyway.
ABI is modified with this patch, but the library version is not bumped.
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Remove any blank lines at the end of all source files
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semi-seamless migration details:
migration source side
---------------------
(1) spice_server_migrate_connect (*): tell client to link
to the target side - send SPICE_MSG_MAIN_MIGRATE_BEGIN.
This should be called upon client_migrate_info cmd.
client_migrate_info is asynchronous.
(2) Complete spice_server_migrate_connect only when the client has been connected
to the target - wait for SPICE_MSGC_MAIN_MIGRATE_(CONNECTED|CONNECT_ERROR) or a timeout.
(3) spice_server_migrate_end: tell client migration it can switch to the target - send
SPICE_MSG_MAIN_MIGRATE_END.
(4) client cleans up all data related to the connection to the source and switches to the target.
It sends SPICE_MSGC_MAIN_MIGRATE_END.
migration target side
---------------------
(1) the server identifies itself as a migraiton target since the client is linked with (connection_id != 0)
(2) server doesn't start the channels' logic (channel->link) till it receives SPICE_MSGC_MAIN_MIGRATE_END
from the client.
* After migration starts, the target qemu is blocked and cannot accept new spice client
connections. Thus, we trigger the connection to the target upon client_migrate_info
command.
(cherry picked from commit 6e56bea67c5648b0c81990171d4bc0cf1a402043 branch 0.8)
Conflicts:
server/spice.h
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While we are at it: There is no reason for chardev
support to stay in the experimental area, so move it out.
qemu should not need the "spice-experimental.h" file.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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seamless stays in the experimental area.
comments updates too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Implement server-side support for switch-host client migration. Client
side support is present already in the tree.
Setting the migration information is done using the existing
spice_server_migrate_info() function. A new
spice_server_migrate_switch() function has been added which triggers
sending out the switch-host message.
Seamless migration functions are left there for now.
spice_server_migrate_start() has been chamnged to just fail
unconditionally though as seamless migration is broken anyway.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Supposed to be used for work-in-progress bits,
where interfaces are not finalized yet.
Moved over vdi port interface, tunnel interface
and spice client migration functions.
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