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22 * @file include/gnunet_peerstore_service.h
23 * @brief API to the peerstore service
24 * @author Omar Tarabai
26 #ifndef GNUNET_PEERSTORE_SERVICE_H
27 #define GNUNET_PEERSTORE_SERVICE_H
30 #include "gnunet_util_lib.h"
35 #if 0 /* keep Emacsens' auto-indent happy */
41 * Handle to the peerstore service.
43 struct GNUNET_PEERSTORE_Handle;
46 * Context for a store request
48 struct GNUNET_PEERSTORE_StoreContext;
51 * Continuation called with a status result.
54 * @param success #GNUNET_OK or #GNUNET_SYSERR
56 typedef void (*GNUNET_PEERSTORE_Continuation)(void *cls, int success);
59 * Function called by for each matching record.
62 * @param peer peer identity
63 * @param sub_system name of the GNUnet sub system responsible
64 * @param value stored value
65 * @param size size of stored value
66 * @return #GNUNET_YES to continue iterating, #GNUNET_NO to stop
68 typedef int (*GNUNET_PEERSTORE_Processor) (void *cls,
69 const char *sub_system,
70 const struct GNUNET_PeerIdentity *peer,
74 struct GNUNET_TIME_Absolute expiry);
77 * Connect to the PEERSTORE service.
79 * @return NULL on error
81 struct GNUNET_PEERSTORE_Handle *
82 GNUNET_PEERSTORE_connect (const struct GNUNET_CONFIGURATION_Handle *cfg);
85 * Disconnect from the PEERSTORE service
87 * @param h handle to disconnect
90 GNUNET_PEERSTORE_disconnect(struct GNUNET_PEERSTORE_Handle *h);
93 * Store a new entry in the PEERSTORE
95 * @param h Handle to the PEERSTORE service
96 * @param sub_system name of the sub system
97 * @param peer Peer Identity
98 * @param key entry key
99 * @param value entry value BLOB
100 * @param size size of 'value'
101 * @param lifetime relative time after which the entry is (possibly) deleted
102 * @param cont Continuation function after the store request is processed
103 * @param cont_cls Closure for 'cont'
105 struct GNUNET_PEERSTORE_StoreContext *
106 GNUNET_PEERSTORE_store (struct GNUNET_PEERSTORE_Handle *h,
107 const char *sub_system,
108 const struct GNUNET_PeerIdentity *peer,
112 struct GNUNET_TIME_Absolute expiry,
113 GNUNET_PEERSTORE_Continuation cont,
117 * Cancel a store request
119 * @param sc Store request context
122 GNUNET_PEERSTORE_store_cancel (struct GNUNET_PEERSTORE_StoreContext *sc);
124 #if 0 /* keep Emacsens' auto-indent happy */