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fix another 64 bit-ism. unsigned long != size_t in general.
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64 bit-ism removed.
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spice_server_migrate_connect is in 0.8.3 in the released 0.8 branch,
and so should not be changed in 0.10. This doesn't break the 0.9.1
release which didn't contain this symbol at all, only 0.9.2 release
that hopefully no one actually packaged.
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This patch reuses Dispatcher in RedDispatcher. It adds two helpers
to red_worker to keep RedWorker opaque to the outside. The dispatcher is
abused in three places that use the underlying socket directly:
once sending a READY after red_init completes
once for each channel creation, replying with the RedChannel instance
for cursor and display.
FDO Bugzilla: 42463
rfc->v1:
* move callbacks to red_worker.c including registration (Yonit)
* rename dispatcher to red_dispatcher in red_worker.c and red_dispatcher.c
* add accessor red_dispatcher_get_dispatcher
* s/dispatcher_handle_recv/dispatcher_handle_recv_read/ and change sig to
just Dispatcher *dispatcher (was the SpiceCoreInterface one)
* remove SpiceCoreInterface parameter from dispatcher_init (Yonit)
* main_dispatcher needed it for channel_event so it has it in
struct MainDispatcher
* add dispatcher_get_recv_fd for red_worker
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used for main_dispatcher only in this patch.
Dispatcher is meant to be used for Main<->any low frequency messages.
It's interface is meant to include the red_dispatcher usage:
fixed size messages per message type
some messages require an ack
Some methods are added to be used by RedDispatcher later:
dispatcher_handle_read - to be called directly by RedDispatcher epoll
based loop
dispatcher_set_opaque - to be set from red_worker pthread
dispatcher_init - allow NULL core as used by red_worker
Read and Write behavior:
Sender: blocking write, blocking read for ack (if any).
Reader: poll for any data, if such then blocking read for a
message_type and following message. repeat until poll returns
with no pending data to read.
FDO Bugzilla: 42463
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printed before function name. No central location for prefixes.
Adding "WORKER", "ASYNC", "MAIN" since those were the current users.
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This is part of the dispatcher update, extracting the dispatcher routine
from red_dispatcher and main_dispatcher into dispatcher.
Supporting multiple async operations will make it natural to support
async monitor commands and async guest io requests that could overlap in
time.
Use a Ring for AsyncCommands.
Free Desktop Bugzilla: 42463
Related FD: 41622
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protocols.
It can't actually happen right now, since switch-host migration scheme will take
place if the src/target server has protocol 1.
(cherry picked from commit 4b2bf4d88c253502003aa5e4b93a045742eec9b4 branch 0.8)
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Fix not destroying surfaces and other data (e.g., streams) upon disconnection.
(cherry picked from commit 010b22cd771b7e81363b4b6521e4265b093fcd25 branch 0.8)
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(cherry picked from commit cad3c585444f940f60c12789f4174f2d32bec70f branch 0.8)
Conflicts:
client/display_channel.cpp
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(cherry picked from commit d3ed9d5e9d52ddcadcb3c8c77dd827b50071d813 branch 0.8)
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Implement on_disconnect_mig_src and on_connect_mig_target in order to avoid
unnecessary cleanups done in on_(disconnet|connect).
In addition, do not request guest display settings changes after migration.
(cherry picked from commit f91d202eb3bf631cf5e70277d1aabffec7da9393 branch 0.8)
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(1) disconnect all channels from the migration src
(2) after all channels are disconnected, clean global resources
(3) send SPICE_MSGC_MAIN_MIGRATE_END to migration target
(4) wait for SPICE_MSG_MAIN_INIT
(4) switch all channels to migration target
(cherry picked from commit 510a4ff7c4f188fe6d0fb12198b8f9fdb74b9a2d branch 0.8)
Conflicts:
client/red_channel.h
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RHBZ 725009, 738270
(cherry picked from commit 31ed2519a752b7332ed40d0d7ab02e938c0e65cb branch 0.8)
Conflicts:
client/red_client.cpp
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use std::map instead of a specific template (CHash).
There is no need for special template. Moreover, using
std::map will allow easy iteration over the surfaces.
(cherry picked from commit fcb3b4ce5231218bcf949da4270bd85a2cfb3535 branch 0.8)
Conflicts:
client/display_channel.cpp
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We will add a qemu call to spice_server_migrate_start when migration starts.
For now, it does nothing, but we may need this notification in the future.
(cherry picked from commit b8213167717979e6f2fb52646e43eb458634e6a1 branch 0.8)
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(1) not sending anything to a migrated client till we recieve SPICE_MSGC_MIGRATE_END
(2) start a new client migration (handle client_migrate_info) only after SPICE_MSGC_MIGRATE_END
from the previous migration was received for this client
(3) use the correct ticket
Note: we assume the same channles are linked before and ater migration. i.e.,
SPICE_MSGC_MAIN_ATTACH_CHANNELS is not sent from the clients.
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If the migration has completed successfully:
(1) send MSG_MAIN_MIGRATE_END to the clients that are connected to the target
(2) send MSG_MAIN_SWITCH_HOST to all the other clients
If the migration failed, send MSG_MAIN_MIGRATE_CANCEL to clients that are
connected to the target.
(cherry picked from commit 4b82580fc36228af13db4ac3c403753d6b5c40b5 branch 0.8;
Was modified to support multiple clients, and the separation of main_channel from reds)
Conflicts:
server/reds.c
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(cherry picked from commit cfbd07710562e522179ae5a7085a789489a821bb branch 0.8)
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migraton starts
(1) send SPICE_MSG_MAIN_MIGRATE_BEGIN upon spice_server_migrate_connect
(to all the clients that support it)
(2) wait for SPICE_MSGC_MAIN_MIGRATE_(CONNECTED|CONNECT_ERROR) from all the relevant clients,
or a timeout, in order to complete client_migrate_info monitor command
(cherry picked from commit 5560c56ef05c74da5e0e0825dc1f134019593cad branch 0.8;
Was modified to support the separation of main channel from reds, and multiple clients)
Conflicts:
server/reds.c
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(cherry picked from commit 55ccc022ec9829523ebe36fdf0ec7c593ce76c22 branch 0.8)
Conflicts:
configure.ac
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(cherry picked from commit 3ac0075cdac8fa42de47a7882022795e96cb1fee branch 0.8)
Conflicts:
server/reds.h
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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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The code for setting and testing channel capabilities was
unnecessarily duplicated. Now it is in red_channel.
RedsChannel was dropped from Reds; It was used only for holding
the channels common capabilities, which are now held in RedChannel.
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add main_dispatcher, a message passing mechanism for sending messages to
the main thread. The main thread is the thread that implements
SpiceCoreInterface, which is assumed to be a single thread.
Similar to the async operation of red_worker, a socket pair is created
and used to pass messages. The messages are a fixed size to ease
parsing. A single message is defined to pass a channel_event.
RHBZ: 746950
FDBZ: 41858
This patch is 0.8 branch only, for the master branch there should be a
better approach to share code with red_dispatcher and ready the way for
later adding more threads.
cherry-pick from 0.8 80caf07e09efe14c67f89a3c01501a6a39681167
Conflicts:
server/reds.c
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When using pkg-config, Requires and Requires.private field list
packages required by this package, but packages listed under
Requires.private are not taken into account when a flag list is
computed for dynamically linked executable. In the situation
where each .pc file corresponds to a library, Requires.private
shall be used exclusively to specify the dependencies between
the libraries.
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ASSERT(red_channel_client_no_item_being_sent) (fdbz #41523)
Call ASSERT(red_channel_client_no_item_being_sent) only if
red_wait_outgoing_item/s did not timeout.
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XMonitor::do_restore (called for example when going out of
fullscreen) restore the screen resolution to its previous state,
but it doesn't take care of repositioning the screen to their
previous position, which is one of the advantages of using randr
1.2.
Since MultyMonScreen::restore handles all of this for us, just call
it to restore the monitor position/resolutions to their previous
settings. Before doing any changes, MultyMonScreen::restore checks
if there's something to do, so calling it once per monitor won't be
an issue, the resolution/position will only be set the first time.
This has the side-effect of fixing bug #693431. This bug occurs when
closing the client after the client went in and out of fullscreen.
MultyMonScreen::~MultyMonScreen calls MultyMonScreen::restore, which
decides to change the screen positions since they were lost when going
to fullscreen because XMonitor::restore didn't restore the positions.
After this change, the positions will be properly restored and
MultyMonScreen::restore won't be needlessly called upon client
shutdown.
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MultyMonScreen::restore changes the X11 Screen resolution, but it
doesn't use MultyMonScreen::set_size. This means
MultyMonScreen::_width and MultyMonScreen::_height don't get
updated to reflect the new resolution settings, which could cause
issues later on. Until now this was safe since the only caller of
MultyMonScreen::restore was MultyMonScreen destructor.
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In a Xinerama setup, when X starts up and creates one of the
secondary screens, first a non-primary surface is created on the
secondary screen, and then the primary surface for this screen is
created.
This causes a crash when the guest uses Xinerama and the client
is attached to the VM before X starts (ie while the guest is
booting).
This happens because DisplayChannel::create_canvas (which is called
when creating a non-primary surface) assumes a screen has already been
set for the DisplayChannel while this only happens upon primary surface
creation. However, it uses the screen for non important stuff, so we
can test if screen() is non NULL before using it. This is what is done
in other parts of this file.
Fixes rhbz #732423
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When running some xinerama tests, I got several
glz_usr_free_image: error
messages. Looking at the code, this error is reported when this
function is called from a different DisplayChannelClient than the
one which created the glz compressed image.
When this happens, the backtrace is
at glz_encoder_dictionary.c:362
0x7fff940b6670) at glz_encoder_dictionary.c:449
image_type=LZ_IMAGE_TYPE_RGB32, image_width=512, image_height=256, image_stride=2048, first_lines=0x0,
num_first_lines=0, usr_image_context=0x7fff7420da40, image_head_dist=0x7fff9b2a3194)
at glz_encoder_dictionary.c:570
top_down=4, lines=0x0, num_lines=0, stride=2048, io_ptr=0x7fff740ea7c0 " ZL", num_io_bytes=65536, usr_context=
0x7fff7420da40, o_enc_dict_context=0x7fff7420da60) at glz_encoder.c:255
drawable=0x7fff9b46bc08, o_comp_data=0x7fff9b2a3350) at red_worker.c:5753
0x7fff9b46bc08, can_lossy=0, o_comp_data=0x7fff9b2a3350) at red_worker.c:6211
0x7fff9b46bc08, can_lossy=0) at red_worker.c:6344
0x7fff74085c50, dpi=0x7fff7445b890, src_allowed_lossy=0) at red_worker.c:7046
0x7fff7445b890) at red_worker.c:7720
at red_worker.c:7964
at red_worker.c:8431
Since the glz dictionary is shared between all the
DisplayChannelClient instances that belong to the same client, it can
happen that the glz dictionary code decides to free an image from one
thread while it was added from another thread (thread ==
DisplayChannelClient), so the error message that is printed is not an
actual error. This commit removes this message and adds a comment
explaining what's going on.
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applicaion => application
Attache => Attach
Detache => Detach
_layes => _layers
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Several functions in server/ were not specifying an argument list,
ie they were declared as void foo(); When compiling with
-Wstrict-prototypes, this leads to:
test_playback.c:93:5: erreur: function declaration isn’t a prototype
[-Werror=strict-prototypes]
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Without these, spice_backtrace() can't be used from the C++ client
code.
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red_display_marshall_stream_start initializes a
SpiceMsgDisplayStreamCreate structure before marshalling it and
sending it on the wire. However, it never fills
SpiceMsgDisplayStreamCreate::stamp which then causes a complaint
from valgrind. This patch sets this value to 0, it's not used
by the client so the value shouldn't matter.
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create_test_primary_surface::test_display_base.c creates a
QXLDevSurfaceCreate structure and initialize it, but doesn't set
the position field. Moreover, this structure has 4 bytes of padding
to the end (as shown by pahole from dwarves), so initialize the whole
structure to 0 before using it.
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