xserver: Branch 'master'
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Wed Feb 13 23:15:24 UTC 2019
Xi/xibarriers.c | 10 ++++++++++
1 file changed, 10 insertions(+)
New commits:
commit 678d64aa2e929368b6d6f2b83bbf5540c4fa292d
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date: Fri Feb 8 13:29:14 2019 +1000
Xi: lock the input thread for any pointer barrier list manipulation
The input thread checks the barriers for pointer positioning, swapping the
list out from underneath is considered impolite.
Reported-by: Michel Dänzer <michel.daenzer at amd.com>
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>
diff --git a/Xi/xibarriers.c b/Xi/xibarriers.c
index d0be70135..1926762ad 100644
--- a/Xi/xibarriers.c
+++ b/Xi/xibarriers.c
@@ -611,7 +611,9 @@ CreatePointerBarrierClient(ClientPtr client,
}
pbd->deviceid = dev->id;
+ input_lock();
xorg_list_add(&pbd->entry, &ret->per_device);
+ input_unlock();
}
ret->id = stuff->barrier;
@@ -626,7 +628,9 @@ CreatePointerBarrierClient(ClientPtr client,
ret->barrier.directions &= ~(BarrierPositiveX | BarrierNegativeX);
if (barrier_is_vertical(&ret->barrier))
ret->barrier.directions &= ~(BarrierPositiveY | BarrierNegativeY);
+ input_lock();
xorg_list_add(&ret->entry, &cs->barriers);
+ input_unlock();
*client_out = ret;
return Success;
@@ -689,7 +693,9 @@ BarrierFreeBarrier(void *data, XID id)
mieqEnqueue(dev, (InternalEvent *) &ev);
}
+ input_lock();
xorg_list_del(&c->entry);
+ input_unlock();
FreePointerBarrierClient(c);
return Success;
@@ -709,7 +715,9 @@ static void add_master_func(void *res, XID id, void *devid)
pbd = AllocBarrierDevice();
pbd->deviceid = *deviceid;
+ input_lock();
xorg_list_add(&pbd->entry, &barrier->per_device);
+ input_unlock();
}
static void remove_master_func(void *res, XID id, void *devid)
@@ -752,7 +760,9 @@ static void remove_master_func(void *res, XID id, void *devid)
mieqEnqueue(dev, (InternalEvent *) &ev);
}
+ input_lock();
xorg_list_del(&pbd->entry);
+ input_unlock();
free(pbd);
}
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