void truncmsg_add_packet_string(struct buffer_if*, int32_t, const uint8_t*);
const char *truncmsg_terminate(const struct buffer_if *buf);
+
+struct priomsg {
+ /* U: uninitialised
+ * F: initialised but free (no memory allocated), no leak if discarded
+ * Z: contains no message yet
+ * M: contains some message; you may call truncmsg_add_*
+ */
+ int prio;
+ struct buffer_if m;
+};
+
+void priomsg_new(struct priomsg *pm, int32_t maxlen); /* UF -> Z */
+void priomsg_destroy(struct priomsg *pm, int32_t maxlen); /* FZM -> F */
+void priomsg_reset(struct priomsg *pm); /* FZM -> Z */
+bool_t priomsg_update_p(struct priomsg *pm, int prio); /* ZM -> M */
+ /* returns true iff message of priority prio ought to be added,
+ * caller should then call truncmsg_add_*.
+ * pm may be NULL, in which case it just returns false */
+const char *priomsg_getmessage(const struct priomsg *pm, const char *defmsg);
+ /* return value is null-terminated, valid until next call
+ * or until defmsg is no longer valid ZM */
+
+bool_t priomsg_update_fixed(struct priomsg *pm, int prio, const char *m);
+ /* convenience combination of _update_p and truncmsg_add_string */
+
/*
* void BUF_ADD_BYTES(append, struct buffer_if*, const void*, int32_t size);
* void BUF_ADD_BYTES(prepend, struct buffer_if*, const void*, int32_t size);
const char *desc);
+/*----- pathprefix_template -----*/
+
+struct pathprefix_template {
+ char *buffer;
+ char *write_here;
+};
+
+void pathprefix_template_init(struct pathprefix_template *out,
+ const char *prefix, int maxsuffix);
+static inline void pathprefix_template_setsuffix
+ (struct pathprefix_template *upd, const char *suffix)
+ { strcpy(upd->write_here,suffix); }
+
+
/*
* SBUF_DEFINE(int nbufs, size_t size);
* // Generates a number of definitions and statements organising