7 /*----- for all comms -----*/
9 struct comm_notify_entry {
12 LIST_ENTRY(comm_notify_entry) entry;
14 LIST_HEAD(comm_notify_list, comm_notify_entry) notify;
16 struct commcommon { /* must be first so that void* is comm_common* */
20 struct comm_notify_list notify;
21 struct buffer_if *rbuf;
24 void comm_request_notify(void *commst, void *nst, comm_notify_fn *fn);
25 void comm_release_notify(void *commst, void *nst, comm_notify_fn *fn);
27 bool_t comm_notify(struct comm_notify_list *notify, struct buffer_if *buf,
28 const struct comm_addr *ca);
29 /* Either: returns True, with message delivered and buffer freed.
30 * Or: False, if no-one wanted it - buffer still allocd'd.
31 * Ie, like comm_notify_fn. */
33 void comm_apply(struct commcommon *cc, void *st);
35 #define COMM_APPLY(st,cc,prefix,desc,loc) \
36 (st)=safe_malloc(sizeof(*(st)), desc "_apply"); \
38 (cc)->cl.description=desc; \
39 (cc)->ops.sendmsg=prefix##sendmsg; \
40 (cc)->ops.addr_to_string=prefix##addr_to_string; \
42 /* void COMM_APPLY(SOMETHING *st, struct commcommon *FUNCTIONOF(st),
43 * prefix, "DESC", struct cloc loc);
44 * // Expects in scope: prefix##sendmsg, prefix##addr_to_string.
47 #define COMM_APPLY_STANDARD(st,cc,desc,args) \
48 item_t *item=list_elem(args,0); \
49 if (!item || item->type!=t_dict) { \
50 cfgfatal((cc)->loc,desc,"first argument must be a dictionary\n"); \
52 dict_t *d=item->data.dict; \
53 (cc)->rbuf=find_cl_if(d,"buffer",CL_BUFFER,True,desc,(cc)->loc)
54 /* void COMM_APPLY_STANDARD(SOMETHING *st, struct commcommon *cc,
55 * const char *desc, list_t *args);
57 * // item_t *item = <undefined>;
58 * // dict_t *dict = <construction dictionary argument>;
61 /*----- for udp-based comms -----*/
63 #define UDP_MAX_SOCKETS 3 /* 2 ought to do really */
72 struct udpsock socks[UDP_MAX_SOCKETS];
73 /* private for udp_socks_* */
74 struct udpcommon *uc; /* link to parent, for cfg, notify list, etc. */
75 struct poll_interest *interest;
86 bool_t udp_make_socket(struct udpcommon *uc, struct udpsock *us,
88 /* Fills in us->fd. Logs any errors with lg_[v]perror. */
90 void udp_socks_register(struct udpcommon *uc, struct udpsocks *socks);
91 void udp_socks_deregister(struct udpcommon *uc, struct udpsocks *socks);
93 #define UDP_APPLY_STANDARD(st,uc,desc) \
94 (uc)->use_proxy=False; \
95 (uc)->authbind=dict_read_string(d,"authbind",False,"udp",(uc)->cc.loc); \
96 (uc)->port=dict_read_number(d,"port",True,"udp",(uc)->cc.loc,0)
97 /* void UDP_APPLY_STANDARD(SOMETHING *st, struct udpcommon *uc,
99 * // Expects in scope: dict_t *d=...; as from COMM_APPLY_STANDARD
102 #endif /*COMM_COMMON_H*/