| /trunk/uspace/lib/libc/include/unistd.h |
|---|
| 45,7 → 45,7 |
| extern ssize_t read(int fd, void * buf, size_t count); |
| extern void _exit(int status); |
| extern void *sbrk(ssize_t incr); |
| extern void usleep(unsigned long usec); |
| extern int usleep(unsigned long usec); |
| extern unsigned int sleep(unsigned int seconds); |
| #endif |
| /trunk/uspace/lib/libc/generic/time.c |
|---|
| 187,12 → 187,13 |
| } |
| /** Wait unconditionally for specified number of microseconds */ |
| void usleep(unsigned long usec) |
| int usleep(unsigned long usec) |
| { |
| atomic_t futex = FUTEX_INITIALIZER; |
| futex_initialize(&futex, 0); |
| futex_down_timeout(&futex, usec, 0); |
| return 0; |
| } |
| /** Wait unconditionally for specified number of seconds */ |
| 210,6 → 211,7 |
| futex_down_timeout(&futex, period * 1000000, 0); |
| seconds -= period; |
| } |
| return 0; |
| } |
| /** @} |