int block(int fd, int ev, time_t to);
int ioloop(void);
void exitioloop(int status);
FILE *mtstdopen(int fd, int issock, int timeout, char *mode, struct stdiofd **infop);
int block(int fd, int ev, time_t to);
int ioloop(void);
void exitioloop(int status);
FILE *mtstdopen(int fd, int issock, int timeout, char *mode, struct stdiofd **infop);