pop_query_status pop_fetch_data (POP_DATA *, const char *, progress_t*,
int (*funct) (char *, void *), void *);
pop_query_status pop_reconnect (CONTEXT *);
pop_query_status pop_fetch_data (POP_DATA *, const char *, progress_t*,
int (*funct) (char *, void *), void *);
pop_query_status pop_reconnect (CONTEXT *);