1 /* SPDX-License-Identifier: BSD-3-Clause */
2
3 #ifndef _RTE_OS_SHIM_
4 #define _RTE_OS_SHIM_
5
6 #include <time.h>
7
8 #include <rte_os.h>
9 #include <rte_windows.h>
10
11 /**
12 * @file
13 * @internal
14 * Provides semi-standard OS facilities by convenient names.
15 */
16
17 #ifndef PATH_MAX
18 #define PATH_MAX _MAX_PATH
19 #endif
20
21 #define strdup(str) _strdup(str)
22 #define strtok_r(str, delim, saveptr) strtok_s(str, delim, saveptr)
23 #ifndef RTE_TOOLCHAIN_GCC
24 #define strcasecmp(s1, s2) _stricmp(s1, s2)
25 #define strncasecmp(s1, s2, count) _strnicmp(s1, s2, count)
26 #endif
27
28 #define open(...) _open(__VA_ARGS__)
29 #define read(fd, buf, n) _read(fd, buf, n)
30 #define write(fd, buf, n) _write(fd, buf, n)
31 #define close(fd) _close(fd)
32 #define unlink(path) _unlink(path)
33
34 #define IPVERSION 4
35
36 #define IPPROTO_IPIP 4
37 #define IPPROTO_GRE 47
38 #ifdef RTE_TOOLCHAIN_GCC
39 #define IPPROTO_SCTP 132
40 #endif
41
42 #ifndef IPDEFTTL
43 #define IPDEFTTL 64
44 #endif
45
46 #ifndef S_ISREG
47 #define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
48 #endif
49
50 #ifdef RTE_TOOLCHAIN_GCC
51
52 #define TIME_UTC 1
53
54 static inline int
rte_timespec_get(struct timespec * now,int base)55 rte_timespec_get(struct timespec *now, int base)
56 {
57 /* 100ns ticks from 1601-01-01 to 1970-01-01 */
58 static const uint64_t EPOCH = 116444736000000000ULL;
59 static const uint64_t TICKS_PER_SEC = 10000000;
60 static const uint64_t NS_PER_TICK = 100;
61
62 FILETIME ft;
63 uint64_t ticks;
64
65 if (base != TIME_UTC)
66 return 0;
67
68 GetSystemTimePreciseAsFileTime(&ft);
69 ticks = ((uint64_t)ft.dwHighDateTime << 32) | ft.dwLowDateTime;
70 ticks -= EPOCH;
71 now->tv_sec = ticks / TICKS_PER_SEC;
72 now->tv_nsec = (ticks - now->tv_sec * TICKS_PER_SEC) * NS_PER_TICK;
73 return base;
74 }
75
76 #define timespec_get(ts, base) rte_timespec_get(ts, base)
77
78 #endif /* RTE_TOOLCHAIN_GCC */
79
80 /* Identifier for system-wide realtime clock. */
81 #define CLOCK_REALTIME 0
82 /* Monotonic system-wide clock. */
83 #define CLOCK_MONOTONIC 1
84
85 typedef int clockid_t;
86
87 static inline int
rte_clock_gettime(clockid_t clock_id,struct timespec * tp)88 rte_clock_gettime(clockid_t clock_id, struct timespec *tp)
89 {
90 const int NS_PER_SEC = 1E9;
91 LARGE_INTEGER pf, pc;
92 LONGLONG nsec;
93
94 switch (clock_id) {
95 case CLOCK_REALTIME:
96 if (timespec_get(tp, TIME_UTC) != TIME_UTC)
97 return -1;
98 return 0;
99 case CLOCK_MONOTONIC:
100 QueryPerformanceFrequency(&pf);
101 QueryPerformanceCounter(&pc);
102
103 nsec = pc.QuadPart * NS_PER_SEC / pf.QuadPart;
104 tp->tv_sec = nsec / NS_PER_SEC;
105 tp->tv_nsec = nsec - tp->tv_sec * NS_PER_SEC;
106 return 0;
107 default:
108 return -1;
109 }
110 }
111 #define clock_gettime(clock_id, tp) rte_clock_gettime(clock_id, tp)
112
113 #endif /* _RTE_OS_SHIM_ */
114