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xen-devel
Re: [Xen-devel] back/frontend drivers HelloWorld
On 23 Sep 2005, at 12:37, NAHieu wrote:
Yes, it is. But looks like xenstore is the only way to "notify"
between userspace applications (like one runs in domU and another runs
in dom0). Or there is another good solution ?
You can execute all the event-channel binding and sending commands via
libxenctrl (see the interfaces defintiions in xenctrl.h).
You can receive asynchronous notifications via /dev/xen/evtchn. You
execute a special ioctl to bind to particular event-channel ports, then
you can read() from the device to read ports that have notifications
pending, or you can add the fd to a select loop(), or you can set
FASYNC and get SIGIO when there are notifications pending.
-- Keir
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