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3 Copyright (C) 2012 GNUnet e.V.
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7 by the Free Software Foundation, either version 3 of the License,
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13 Affero General Public License for more details.
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21 * @file consensus/consensus_protocol.h
22 * @brief p2p message definitions for consensus
23 * @author Florian Dold
26 #ifndef GNUNET_CONSENSUS_PROTOCOL_H
27 #define GNUNET_CONSENSUS_PROTOCOL_H
30 #include "gnunet_util_lib.h"
31 #include "gnunet_common.h"
32 #include "gnunet_protocols.h"
35 GNUNET_NETWORK_STRUCT_BEGIN
38 * Sent as context message for set reconciliation.
40 * Essentially contains all the fields
41 * from 'struct TaskKey', but in NBO.
43 struct GNUNET_CONSENSUS_RoundContextMessage
46 * Type: #GNUNET_MESSAGE_TYPE_CONSENSUS_P2P_ROUND_CONTEXT
48 struct GNUNET_MessageHeader header;
51 * A value from 'enum PhaseKind'.
53 uint16_t kind GNUNET_PACKED;
56 * Number of the first peer
59 int16_t peer1 GNUNET_PACKED;
62 * Number of the second peer in canonical order.
64 int16_t peer2 GNUNET_PACKED;
67 * Repetition of the gradecast phase.
69 int16_t repetition GNUNET_PACKED;
72 * Leader in the gradecast phase.
74 * Can be different from both peer1 and peer2.
76 int16_t leader GNUNET_PACKED;
79 * Non-zero if this set reconciliation
80 * had elements removed because they were contested.
82 * Will be considered when grading broadcasts.
84 * Ignored for set operations that are not within gradecasts.
86 uint16_t is_contested GNUNET_PACKED;
91 CONSENSUS_MARKER_CONTESTED = 1,
92 CONSENSUS_MARKER_SIZE = 2,
97 * Consensus element, either marker or payload.
99 struct ConsensusElement
102 * Payload element_type, only valid
103 * if this is not a marker element.
105 uint16_t payload_type GNUNET_PACKED;
108 * Is this a marker element?
112 /* rest: element data */
116 struct ConsensusSizeElement
118 struct ConsensusElement ce;
120 uint64_t size GNUNET_PACKED;
121 uint8_t sender_index;
124 struct ConsensusStuffedElement
126 struct ConsensusElement ce;
127 struct GNUNET_HashCode rand GNUNET_PACKED;
131 GNUNET_NETWORK_STRUCT_END