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1 | /* |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2008-2010 |
3 | * |
4 | * This work is licensed under the terms of any of these licenses |
5 | * (at your option): |
6 | * - GNU GPL, version 2 or later. |
7 | * - GNU LGPL, version 2.1 or later. |
8 | * See the COPYING file in the top-level directory. |
9 | */ |
10 | |
11 | #define _GNU_SOURCE |
12 | #include <stdio.h> |
13 | #include <string.h> |
14 | #include <stdarg.h> |
15 | #include <dirent.h> |
16 | #include <sys/time.h> |
17 | #include <time.h> |
18 | #include <unistd.h> |
19 | #include <sys/mman.h> |
20 | |
21 | #include "../common/plat.h" |
22 | |
23 | |
24 | int plat_is_dir(const char *path) |
25 | { |
26 | DIR *dir; |
27 | if ((dir = opendir(path))) { |
28 | closedir(dir); |
29 | return 1; |
30 | } |
31 | return 0; |
32 | } |
33 | |
34 | int plat_get_root_dir(char *dst, int len) |
35 | { |
36 | int j, ret; |
37 | |
38 | ret = readlink("/proc/self/exe", dst, len - 1); |
39 | if (ret < 0) { |
40 | perror("readlink"); |
41 | ret = 0; |
42 | } |
43 | dst[ret] = 0; |
44 | |
45 | for (j = strlen(dst); j > 0; j--) |
46 | if (dst[j] == '/') { |
47 | dst[++j] = 0; |
48 | break; |
49 | } |
50 | |
69d41dfb |
51 | return j; |
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52 | } |
53 | |
54 | #ifdef __GP2X__ |
55 | /* Wiz has a borked gettimeofday().. */ |
56 | #define plat_get_ticks_ms plat_get_ticks_ms_good |
57 | #define plat_get_ticks_us plat_get_ticks_us_good |
58 | #endif |
59 | |
60 | unsigned int plat_get_ticks_ms(void) |
61 | { |
62 | struct timeval tv; |
63 | unsigned int ret; |
64 | |
65 | gettimeofday(&tv, NULL); |
66 | |
67 | ret = (unsigned)tv.tv_sec * 1000; |
68 | /* approximate /= 1000 */ |
69 | ret += ((unsigned)tv.tv_usec * 4195) >> 22; |
70 | |
71 | return ret; |
72 | } |
73 | |
74 | unsigned int plat_get_ticks_us(void) |
75 | { |
76 | struct timeval tv; |
77 | unsigned int ret; |
78 | |
79 | gettimeofday(&tv, NULL); |
80 | |
81 | ret = (unsigned)tv.tv_sec * 1000000; |
82 | ret += (unsigned)tv.tv_usec; |
83 | |
84 | return ret; |
85 | } |
86 | |
87 | void plat_sleep_ms(int ms) |
88 | { |
89 | usleep(ms * 1000); |
90 | } |
91 | |
92 | int plat_wait_event(int *fds_hnds, int count, int timeout_ms) |
93 | { |
94 | struct timeval tv, *timeout = NULL; |
95 | int i, ret, fdmax = -1; |
96 | fd_set fdset; |
97 | |
98 | if (timeout_ms >= 0) { |
99 | tv.tv_sec = timeout_ms / 1000; |
100 | tv.tv_usec = (timeout_ms % 1000) * 1000; |
101 | timeout = &tv; |
102 | } |
103 | |
104 | FD_ZERO(&fdset); |
105 | for (i = 0; i < count; i++) { |
106 | if (fds_hnds[i] > fdmax) fdmax = fds_hnds[i]; |
107 | FD_SET(fds_hnds[i], &fdset); |
108 | } |
109 | |
110 | ret = select(fdmax + 1, &fdset, NULL, NULL, timeout); |
111 | if (ret == -1) |
112 | { |
113 | perror("plat_wait_event: select failed"); |
114 | sleep(1); |
115 | return -1; |
116 | } |
117 | |
118 | if (ret == 0) |
119 | return -1; /* timeout */ |
120 | |
121 | ret = -1; |
122 | for (i = 0; i < count; i++) |
123 | if (FD_ISSET(fds_hnds[i], &fdset)) |
124 | ret = fds_hnds[i]; |
125 | |
126 | return ret; |
127 | } |
128 | |
129 | void *plat_mmap(unsigned long addr, size_t size) |
130 | { |
131 | void *req, *ret; |
132 | |
133 | req = (void *)addr; |
134 | ret = mmap(req, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); |
135 | if (ret == MAP_FAILED) |
136 | return NULL; |
137 | if (ret != req) |
138 | printf("warning: mmaped to %p, requested %p\n", ret, req); |
139 | |
140 | return ret; |
141 | } |
142 | |
143 | void *plat_mremap(void *ptr, size_t oldsize, size_t newsize) |
144 | { |
145 | void *ret; |
146 | |
147 | ret = mremap(ptr, oldsize, newsize, MREMAP_MAYMOVE); |
148 | if (ret == MAP_FAILED) |
149 | return NULL; |
150 | if (ret != ptr) |
151 | printf("warning: mremap moved: %p -> %p\n", ptr, ret); |
152 | |
153 | return ret; |
154 | } |
155 | |
156 | void plat_munmap(void *ptr, size_t size) |
157 | { |
158 | munmap(ptr, size); |
159 | } |
160 | |
161 | /* lprintf */ |
162 | void lprintf(const char *fmt, ...) |
163 | { |
164 | va_list vl; |
165 | |
166 | va_start(vl, fmt); |
167 | vprintf(fmt, vl); |
168 | va_end(vl); |
169 | } |
170 | |