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22 * @file include/gnunet_psyc_service.h
23 * @brief PSYC utilities; receiving/transmitting/logging PSYC messages.
24 * @author Gabor X Toth
27 #ifndef GNUNET_PSYC_UTIL_LIB_H
28 #define GNUNET_PSYC_UTIL_LIB_H
33 #if 0 /* keep Emacsens' auto-indent happy */
38 #include "gnunet_util_lib.h"
39 #include "gnunet_env_lib.h"
40 #include "gnunet_psyc_service.h"
44 GNUNET_PSYC_log_message (enum GNUNET_ErrorType kind,
45 const struct GNUNET_MessageHeader *msg);
49 GNUNET_PSYC_check_message_parts (uint16_t data_size, const char *data,
50 uint16_t *first_ptype, uint16_t *last_ptype);
53 struct GNUNET_PSYC_TransmitHandle;
56 * Create a transmission handle.
58 struct GNUNET_PSYC_TransmitHandle *
59 GNUNET_PSYC_transmit_create ();
63 * Destroy a transmission handle.
66 GNUNET_PSYC_transmit_destroy (struct GNUNET_PSYC_TransmitHandle *tmit);
72 * @param tmit Transmission handle.
73 * @param method_name Which method should be invoked.
74 * @param env Environment for the message.
75 * Should stay available until the first call to notify_data.
76 * Can be NULL if there are no modifiers or @a notify_mod is provided instead.
77 * @param notify_mod Function to call to obtain modifiers.
78 * Can be NULL if there are no modifiers or @a env is provided instead.
79 * @param notify_data Function to call to obtain fragments of the data.
80 * @param notify_cls Closure for @a notify_mod and @a notify_data.
81 * @param flags Flags for the message being transmitted.
83 * @return #GNUNET_OK if the transmission was started.
84 * #GNUNET_SYSERR if another transmission is already going on.
87 GNUNET_PSYC_transmit_message (struct GNUNET_PSYC_TransmitHandle *tmit,
88 const char *method_name,
89 const struct GNUNET_ENV_Environment *env,
90 GNUNET_PSYC_TransmitNotifyModifier notify_mod,
91 GNUNET_PSYC_TransmitNotifyData notify_data,
97 * Resume transmission.
99 * @param tmit Transmission handle.
102 GNUNET_PSYC_transmit_resume (struct GNUNET_PSYC_TransmitHandle *tmit);
106 * Abort transmission request.
108 * @param tmit Transmission handle.
111 GNUNET_PSYC_transmit_cancel (struct GNUNET_PSYC_TransmitHandle *tmit);
115 * Got acknowledgement of a transmitted message part, continue transmission.
117 * @param tmit Transmission handle.
120 GNUNET_PSYC_transmit_got_ack (struct GNUNET_PSYC_TransmitHandle *tmit);
123 struct GNUNET_PSYC_ReceiveHandle;
127 * Create handle for receiving messages.
129 struct GNUNET_PSYC_ReceiveHandle *
130 GNUNET_PSYC_receive_create (GNUNET_PSYC_MessageCallback message_cb,
131 GNUNET_PSYC_MessageCallback hist_message_cb,
136 * Destroy handle for receiving messages.
139 GNUNET_PSYC_receive_destroy (struct GNUNET_PSYC_ReceiveHandle *recv);
143 * Reset stored data related to the last received message.
146 GNUNET_PSYC_receive_reset (struct GNUNET_PSYC_ReceiveHandle *recv);
150 * Handle incoming PSYC message.
152 * @param recv Receive handle.
153 * @param msg The message.
155 * @return #GNUNET_OK on success,
156 * #GNUNET_SYSERR on receive error.
159 GNUNET_PSYC_receive_message (struct GNUNET_PSYC_ReceiveHandle *recv,
160 const struct GNUNET_PSYC_MessageHeader *msg);
164 * Check if @a data contains a series of valid message parts.
166 * @param data_size Size of @a data.
168 * @param[out] first_ptype Type of first message part.
169 * @param[out] last_ptype Type of last message part.
171 * @return Number of message parts found in @a data.
172 * or GNUNET_SYSERR if the message contains invalid parts.
175 GNUNET_PSYC_receive_check_parts (uint16_t data_size, const char *data,
176 uint16_t *first_ptype, uint16_t *last_ptype);
179 #if 0 /* keep Emacsens' auto-indent happy */
186 /* ifndef GNUNET_PSYC_UTIL_LIB_H */
188 /* end of gnunet_psyc_util_lib.h */