15 int block(int fd, int ev, time_t to);
17 void exitioloop(int status);
18 FILE *mtstdopen(int fd, int issock, int timeout, char *mode, struct stdiofd **infop);
19 struct bufio *mtbioopen(int fd, int issock, int timeout, char *mode, struct stdiofd **infop);
20 void mtiopipe(FILE **read, FILE **write);