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1 | #include <stdio.h> |
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2 | #include <string.h> |
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3 | #include <dirent.h> |
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4 | #include <sys/time.h> |
5 | #include <time.h> |
6 | #include <unistd.h> |
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7 | #include <sys/mman.h> |
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8 | |
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9 | #include "../common/plat.h" |
10 | |
11 | |
12 | int plat_is_dir(const char *path) |
13 | { |
14 | DIR *dir; |
15 | if ((dir = opendir(path))) { |
16 | closedir(dir); |
17 | return 1; |
18 | } |
19 | return 0; |
20 | } |
21 | |
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22 | int plat_get_root_dir(char *dst, int len) |
23 | { |
24 | extern char **g_argv; |
25 | int j; |
26 | |
27 | strncpy(dst, g_argv[0], len); |
28 | len -= 32; // reserve |
29 | if (len < 0) len = 0; |
30 | dst[len] = 0; |
31 | for (j = strlen(dst); j > 0; j--) |
32 | if (dst[j] == '/') { dst[j+1] = 0; break; } |
33 | |
34 | return j + 1; |
35 | } |
36 | |
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37 | #ifdef __GP2X__ |
38 | /* Wiz has a borked gettimeofday().. */ |
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39 | #define plat_get_ticks_ms plat_get_ticks_ms_good |
40 | #define plat_get_ticks_us plat_get_ticks_us_good |
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41 | #endif |
42 | |
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43 | unsigned int plat_get_ticks_ms(void) |
44 | { |
45 | struct timeval tv; |
46 | unsigned int ret; |
47 | |
48 | gettimeofday(&tv, NULL); |
49 | |
50 | ret = (unsigned)tv.tv_sec * 1000; |
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51 | /* approximate /= 1000 */ |
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52 | ret += ((unsigned)tv.tv_usec * 4195) >> 22; |
53 | |
54 | return ret; |
55 | } |
56 | |
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57 | unsigned int plat_get_ticks_us(void) |
58 | { |
59 | struct timeval tv; |
60 | unsigned int ret; |
61 | |
62 | gettimeofday(&tv, NULL); |
63 | |
64 | ret = (unsigned)tv.tv_sec * 1000000; |
65 | ret += (unsigned)tv.tv_usec; |
66 | |
67 | return ret; |
68 | } |
69 | |
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70 | void plat_sleep_ms(int ms) |
71 | { |
72 | usleep(ms * 1000); |
73 | } |
74 | |
75 | int plat_wait_event(int *fds_hnds, int count, int timeout_ms) |
76 | { |
77 | struct timeval tv, *timeout = NULL; |
78 | int i, ret, fdmax = -1; |
79 | fd_set fdset; |
80 | |
81 | if (timeout_ms >= 0) { |
82 | tv.tv_sec = timeout_ms / 1000; |
83 | tv.tv_usec = (timeout_ms % 1000) * 1000; |
84 | timeout = &tv; |
85 | } |
86 | |
87 | FD_ZERO(&fdset); |
88 | for (i = 0; i < count; i++) { |
89 | if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i]; |
90 | FD_SET(fds_hnds[i], &fdset); |
91 | } |
92 | |
93 | ret = select(fdmax + 1, &fdset, NULL, NULL, timeout); |
94 | if (ret == -1) |
95 | { |
96 | perror("plat_wait_event: select failed"); |
97 | sleep(1); |
98 | return -1; |
99 | } |
100 | |
101 | if (ret == 0) |
102 | return -1; /* timeout */ |
103 | |
104 | ret = -1; |
105 | for (i = 0; i < count; i++) |
106 | if (FD_ISSET(fds_hnds[i], &fdset)) |
107 | ret = fds_hnds[i]; |
108 | |
109 | return ret; |
110 | } |
111 | |
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112 | void *plat_mmap(unsigned long addr, size_t size) |
113 | { |
114 | void *req, *ret; |
115 | req = (void *)addr; |
116 | ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS, -1, 0); |
117 | if (ret == MAP_FAILED) |
118 | return NULL; |
119 | if (ret != req) |
120 | printf("warning: mmaped to %p, requested %p\n", ret, req); |
121 | |
122 | return ret; |
123 | } |
124 | |
125 | void plat_munmap(void *ptr, size_t size) |
126 | { |
127 | munmap(ptr, size); |
128 | } |
129 | |