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1 | #define _GNU_SOURCE |
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2 | #include <stdio.h> |
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3 | #include <string.h> |
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4 | #include <stdarg.h> |
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5 | #include <dirent.h> |
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6 | #include <sys/time.h> |
7 | #include <time.h> |
8 | #include <unistd.h> |
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9 | #include <sys/mman.h> |
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10 | |
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11 | #include "../common/plat.h" |
12 | |
13 | |
14 | int plat_is_dir(const char *path) |
15 | { |
16 | DIR *dir; |
17 | if ((dir = opendir(path))) { |
18 | closedir(dir); |
19 | return 1; |
20 | } |
21 | return 0; |
22 | } |
23 | |
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24 | int plat_get_root_dir(char *dst, int len) |
25 | { |
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26 | int j, ret; |
27 | |
28 | ret = readlink("/proc/self/exe", dst, len - 1); |
29 | if (ret < 0) { |
30 | perror("readlink"); |
31 | ret = 0; |
32 | } |
33 | dst[ret] = 0; |
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34 | |
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35 | for (j = strlen(dst); j > 0; j--) |
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36 | if (dst[j] == '/') { |
37 | dst[++j] = 0; |
38 | break; |
39 | } |
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40 | |
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41 | return 0; |
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42 | } |
43 | |
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44 | #ifdef __GP2X__ |
45 | /* Wiz has a borked gettimeofday().. */ |
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46 | #define plat_get_ticks_ms plat_get_ticks_ms_good |
47 | #define plat_get_ticks_us plat_get_ticks_us_good |
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48 | #endif |
49 | |
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50 | unsigned int plat_get_ticks_ms(void) |
51 | { |
52 | struct timeval tv; |
53 | unsigned int ret; |
54 | |
55 | gettimeofday(&tv, NULL); |
56 | |
57 | ret = (unsigned)tv.tv_sec * 1000; |
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58 | /* approximate /= 1000 */ |
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59 | ret += ((unsigned)tv.tv_usec * 4195) >> 22; |
60 | |
61 | return ret; |
62 | } |
63 | |
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64 | unsigned int plat_get_ticks_us(void) |
65 | { |
66 | struct timeval tv; |
67 | unsigned int ret; |
68 | |
69 | gettimeofday(&tv, NULL); |
70 | |
71 | ret = (unsigned)tv.tv_sec * 1000000; |
72 | ret += (unsigned)tv.tv_usec; |
73 | |
74 | return ret; |
75 | } |
76 | |
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77 | void plat_sleep_ms(int ms) |
78 | { |
79 | usleep(ms * 1000); |
80 | } |
81 | |
82 | int plat_wait_event(int *fds_hnds, int count, int timeout_ms) |
83 | { |
84 | struct timeval tv, *timeout = NULL; |
85 | int i, ret, fdmax = -1; |
86 | fd_set fdset; |
87 | |
88 | if (timeout_ms >= 0) { |
89 | tv.tv_sec = timeout_ms / 1000; |
90 | tv.tv_usec = (timeout_ms % 1000) * 1000; |
91 | timeout = &tv; |
92 | } |
93 | |
94 | FD_ZERO(&fdset); |
95 | for (i = 0; i < count; i++) { |
96 | if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i]; |
97 | FD_SET(fds_hnds[i], &fdset); |
98 | } |
99 | |
100 | ret = select(fdmax + 1, &fdset, NULL, NULL, timeout); |
101 | if (ret == -1) |
102 | { |
103 | perror("plat_wait_event: select failed"); |
104 | sleep(1); |
105 | return -1; |
106 | } |
107 | |
108 | if (ret == 0) |
109 | return -1; /* timeout */ |
110 | |
111 | ret = -1; |
112 | for (i = 0; i < count; i++) |
113 | if (FD_ISSET(fds_hnds[i], &fdset)) |
114 | ret = fds_hnds[i]; |
115 | |
116 | return ret; |
117 | } |
118 | |
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119 | void *plat_mmap(unsigned long addr, size_t size) |
120 | { |
121 | void *req, *ret; |
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122 | |
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123 | req = (void *)addr; |
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124 | ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); |
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125 | if (ret == MAP_FAILED) |
126 | return NULL; |
127 | if (ret != req) |
128 | printf("warning: mmaped to %p, requested %p\n", ret, req); |
129 | |
130 | return ret; |
131 | } |
132 | |
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133 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) |
134 | { |
135 | void *ret; |
136 | |
137 | ret = mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE); |
138 | if (ret == MAP_FAILED) |
139 | return NULL; |
140 | if (ret != ptr) |
141 | printf("warning: mremap moved: %p -> %p\n", ptr, ret); |
142 | |
143 | return ret; |
144 | } |
145 | |
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146 | void plat_munmap(void *ptr, size_t size) |
147 | { |
148 | munmap(ptr, size); |
149 | } |
150 | |
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151 | /* lprintf */ |
152 | void lprintf(const char *fmt, ...) |
153 | { |
154 | va_list vl; |
155 | |
156 | va_start(vl, fmt); |
157 | vprintf(fmt, vl); |
158 | va_end(vl); |
159 | } |
160 | |