| 1 | #include <stdio.h> |
| 2 | #include <dirent.h> |
| 3 | #include <sys/time.h> |
| 4 | #include <time.h> |
| 5 | #include <unistd.h> |
| 6 | |
| 7 | #include "../common/plat.h" |
| 8 | |
| 9 | |
| 10 | int plat_is_dir(const char *path) |
| 11 | { |
| 12 | DIR *dir; |
| 13 | if ((dir = opendir(path))) { |
| 14 | closedir(dir); |
| 15 | return 1; |
| 16 | } |
| 17 | return 0; |
| 18 | } |
| 19 | |
| 20 | unsigned int plat_get_ticks_ms(void) |
| 21 | { |
| 22 | struct timeval tv; |
| 23 | unsigned int ret; |
| 24 | |
| 25 | gettimeofday(&tv, NULL); |
| 26 | |
| 27 | ret = (unsigned)tv.tv_sec * 1000; |
| 28 | /* approximate division */ |
| 29 | ret += ((unsigned)tv.tv_usec * 4195) >> 22; |
| 30 | |
| 31 | return ret; |
| 32 | } |
| 33 | |
| 34 | void plat_sleep_ms(int ms) |
| 35 | { |
| 36 | usleep(ms * 1000); |
| 37 | } |
| 38 | |
| 39 | int plat_wait_event(int *fds_hnds, int count, int timeout_ms) |
| 40 | { |
| 41 | struct timeval tv, *timeout = NULL; |
| 42 | int i, ret, fdmax = -1; |
| 43 | fd_set fdset; |
| 44 | |
| 45 | if (timeout_ms >= 0) { |
| 46 | tv.tv_sec = timeout_ms / 1000; |
| 47 | tv.tv_usec = (timeout_ms % 1000) * 1000; |
| 48 | timeout = &tv; |
| 49 | } |
| 50 | |
| 51 | FD_ZERO(&fdset); |
| 52 | for (i = 0; i < count; i++) { |
| 53 | if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i]; |
| 54 | FD_SET(fds_hnds[i], &fdset); |
| 55 | } |
| 56 | |
| 57 | ret = select(fdmax + 1, &fdset, NULL, NULL, timeout); |
| 58 | if (ret == -1) |
| 59 | { |
| 60 | perror("plat_wait_event: select failed"); |
| 61 | sleep(1); |
| 62 | return -1; |
| 63 | } |
| 64 | |
| 65 | if (ret == 0) |
| 66 | return -1; /* timeout */ |
| 67 | |
| 68 | ret = -1; |
| 69 | for (i = 0; i < count; i++) |
| 70 | if (FD_ISSET(fds_hnds[i], &fdset)) |
| 71 | ret = fds_hnds[i]; |
| 72 | |
| 73 | return ret; |
| 74 | } |
| 75 | |