qemu/migration/multifd.h

4  * Copyright (c) 2019-2020 Red Hat Inc
10  * See the COPYING file in the top-level directory.
23     /* No sync request */
25     /* Sync locally on the sender threads without pushing messages */
28      * Sync not only on the sender threads, but also push MULTIFD_FLAG_SYNC
29      * message to the wire for each iochannel (which is for a remote sync).
31      * When remote sync is used, need to be paired with a follow up
102      *  - normal pages (initial normal_pages entries)
103      *  - zero pages (following zero_pages entries)
164     return data->type == MULTIFD_PAYLOAD_NONE;  in multifd_payload_empty()
169     return data->type == MULTIFD_PAYLOAD_DEVICE_STATE;  in multifd_payload_device_state()
178     data->type = type;  in multifd_set_payload_type()
183     /* No lock required for them, they are read only */
212      * @pending_sync: a sync request is pending
241     /* No lock required for them, they are read only */
294     /* used for de-compression methods */
310      * Must allocate p->iov. If packets are in use (default), one
314      * p->write_flags may be used for passing flags to the QIOChannel.
316      * p->compression_data may be used by compression methods to store
332      * Must populate p->iov with the data to be sent, increment
333      * p->iovs_num to match the amount of iovecs used and set
334      * p->next_packet_size with the amount of data currently present
335      * in p->iov.
338      * p->flags.
355      * p->iov. Compression methods may use p->compress_data.
371      * Must validate p->flags according to what was set at
374      * Must read the data from the QIOChannel p->c.