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| author | Jason Wang <jasowang@redhat.com> | 2014-05-20 14:01:43 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-06-19 16:41:54 +0300 |
| commit | 508e1180d3e8371a902ba721d2c9e1ee04c33a15 (patch) | |
| tree | 378ce34ac117bcc20b66b10d3d7bf4fe1a669e7c /include | |
| parent | 110f463062d65487fdd0daaaa0df53a2ea9d6619 (diff) | |
| download | qemu-508e1180d3e8371a902ba721d2c9e1ee04c33a15.zip qemu-508e1180d3e8371a902ba721d2c9e1ee04c33a15.tar.gz qemu-508e1180d3e8371a902ba721d2c9e1ee04c33a15.tar.bz2 | |
migration: introduce self_announce_delay()
This patch introduces self_announce_delay() to calculate the delay for
the next announce round. This could be used by other device e.g
virtio-net who wants to do announcing by itself.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/migration/vmstate.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index 6edce98..799d2d0 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -780,4 +780,12 @@ void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev); void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev); void vmstate_register_ram_global(struct MemoryRegion *memory); +static inline +int64_t self_announce_delay(int round) +{ + assert(round < SELF_ANNOUNCE_ROUNDS && round > 0); + /* delay 50ms, 150ms, 250ms, ... */ + return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100; +} + #endif |