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When there is no audio playback, we set the mm_time in the client to be older
than the one in the server by at least the requested latency (the delta is
actually bigger, due to the network latency).
When there is an audio playback, we adjust the mm_time in the client by
adjusting the playback buffer using SPICE_MSG_PLAYBACK_LATENCY.
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Tracking the channels that wait for migration data. If there
is a new migration process pending, when all the channels have
restored their state, we begin the new migration.
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fixes rhbz 790749 use after free of SpiceChannelEventInfo.
The lifetime of the SpiceChannelEventInfo was that of RedsStream, but it
is used by main_dispatcher_handle_channel_event after the RedsStream is
freed for the cursor and display channels. Making SCEI allocation be at
RedsStream allocation, and deallocation after the DESTROY event is
processed by core->channel_event, fixes use after free.
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Not all files were including config.h
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The assert.h include was never used in any code
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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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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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