4  * Copyright (c) 2019-2020 Red Hat Inc
10  * See the COPYING file in the top-level directory.
33      * channel.
72  * (MultiFDPacketDeviceState_t), not RAM data (MultiFDPacket_t).
102      *  - normal pages (initial normal_pages entries)
103      *  - zero pages (following zero_pages entries)
114     /* size of the next packet that contains the actual data */
162 static inline bool multifd_payload_empty(MultiFDSendData *data)  in multifd_payload_empty()  argument
164     return data->type == MULTIFD_PAYLOAD_NONE;  in multifd_payload_empty()
167 static inline bool multifd_payload_device_state(MultiFDSendData *data)  in multifd_payload_device_state()  argument
169     return data->type == MULTIFD_PAYLOAD_DEVICE_STATE;  in multifd_payload_device_state()
172 static inline void multifd_set_payload_type(MultiFDSendData *data,  in multifd_set_payload_type()  argument
175     assert(multifd_payload_empty(data));  in multifd_set_payload_type()
178     data->type = type;  in multifd_set_payload_type()
185     /* channel number */
187     /* channel thread name */
189     /* channel thread id */
194     /* communication channel */
220     MultiFDSendData *data;  member
229     /* packets sent through this channel */
243     /* channel number */
245     /* channel thread name */
247     /* channel thread id */
250     /* communication channel */
269     MultiFDRecvData *data;  member
278     /* packets received through this channel */
294     /* used for de-compression methods */
307      * Setup for sending side. Called once per channel during channel
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
317      * compression data.
322      * Cleanup for sending side. Called once per channel during
323      * channel cleanup phase.
330      * a channel that is currently idle.
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.
351      * Setup for receiving side. Called once per channel during
352      * channel setup phase. May be empty.
354      * May allocate data structures for the receiving of data. May use
355      * p->iov. Compression methods may use p->compress_data.
360      * Cleanup for receiving side. Called once per channel during
361      * channel cleanup phase. May be empty.
366      * Data receive method. Called as a result of multifd_recv() on
368      * channel that is currently idle. Only called if there is data
371      * Must validate p->flags according to what was set at
374      * Must read the data from the QIOChannel p->c.
388 void multifd_send_data_clear(MultiFDSendData *data);
389 void multifd_send_data_free(MultiFDSendData *data);