2 This file is part of GNUnet.
3 (C) 2013 Christian Grothoff (and other contributing authors)
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13 General Public License for more details.
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22 * @file include/gnunet_scalarproduct_service.h
23 * @brief API to the scalarproduct service
24 * @author Christian M. Fuchs
25 * @author Gaurav Kukreja
27 #ifndef GNUNET_SCALARPRODUCT_SERVICE_H
28 #define GNUNET_SCALARPRODUCT_SERVICE_H
29 #define GCRYPT_NO_DEPRECATED
34 #if 0 /* keep Emacsens' auto-indent happy */
40 * Version of the scalarproduct API.
42 #define GNUNET_SCALARPRODUCT_VERSION 0x00000042
44 enum GNUNET_SCALARPRODUCT_ResponseStatus
46 GNUNET_SCALARPRODUCT_Status_Success = 0,
47 GNUNET_SCALARPRODUCT_Status_Failure,
48 GNUNET_SCALARPRODUCT_Status_InvalidResponse,
49 GNUNET_SCALARPRODUCT_Status_ServiceDisconnected
52 struct GNUNET_SCALARPRODUCT_Handle;
54 typedef void (*GNUNET_SCALARPRODUCT_ResponseMessageHandler) (void *cls,
55 const struct GNUNET_MessageHeader *msg,
56 enum GNUNET_SCALARPRODUCT_ResponseStatus status);
59 * Continuation called to notify client about result of the
63 * @param status Status of the request
65 typedef void (*GNUNET_SCALARPRODUCT_ContinuationWithStatus) (void *cls,
66 enum GNUNET_SCALARPRODUCT_ResponseStatus status);
68 * Process a datum that was stored in the scalarproduct.
71 * @param status Status of the request
72 * @param type result of the computation
74 typedef void (*GNUNET_SCALARPRODUCT_DatumProcessor) (void *cls,
75 enum GNUNET_SCALARPRODUCT_ResponseStatus status,
79 * Request by Alice's client for computing a scalar product
81 * @param h handle to the master context
82 * @param key Session key - unique to the requesting client
83 * @param peer PeerID of the other peer
84 * @param elements Array of elements of the vector
85 * @param element_count Number of elements in the vector
86 * @param mask Array of the mask
87 * @param mask_bytes number of bytes in the mask
88 * @param cont Callback function
89 * @param cont_cls Closure for the callback function
91 struct GNUNET_SCALARPRODUCT_ComputationHandle *
92 GNUNET_SCALARPRODUCT_request (const struct GNUNET_CONFIGURATION_Handle *cfg,
93 const struct GNUNET_HashCode * key,
94 const struct GNUNET_PeerIdentity *peer,
95 const int32_t * elements,
96 uint32_t element_count,
97 const unsigned char * mask,
99 GNUNET_SCALARPRODUCT_DatumProcessor cont,
103 * Used by Bob's client to cooperate with Alice,
105 * @param h handle to our configuration
106 * @param key Session key - unique to the requesting client
107 * @param elements Array of elements of the vector
108 * @param element_count Number of elements in the vector
109 * @param cont Callback function
110 * @param cont_cls Closure for the callback function
112 struct GNUNET_SCALARPRODUCT_ComputationHandle *
113 GNUNET_SCALARPRODUCT_response (const struct GNUNET_CONFIGURATION_Handle *cfg,
114 const struct GNUNET_HashCode * key,
115 const int32_t * elements,
116 uint32_t element_count,
117 GNUNET_SCALARPRODUCT_ContinuationWithStatus cont,
120 * Cancel an ongoing computation or revoke our collaboration offer.
121 * Closes the connection to the service
123 * @param h handel to terminate
126 GNUNET_SCALARPRODUCT_cancel (const struct GNUNET_SCALARPRODUCT_Handle *h);
128 #if 0 /* keep Emacsens' auto-indent happy */