OpenMPI 0.1.1

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ompi_time.h
1 /*
2 *Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
3 * University Research and Technology
4 * Corporation. All rights reserved.
5 *Copyright (c) 2004-2005 The University of Tennessee and The University
6 * of Tennessee Research Foundation. All rights
7 * reserved.
8 *Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
9 * University of Stuttgart. All rights reserved.
10 *Copyright (c) 2004-2005 The Regents of the University of California.
11 * All rights reserved.
12 *$COPYRIGHT$
13 *
14 *Additional copyrights may follow
15 *
16 *$HEADER$
17 */
18
19 #ifndef OMPI_TIME_H
20 #define OMPI_TIME_H
21
22 #include "opal_config.h"
23
24 #ifndef OMPI_WIN_COMPAT_H
25 #error This file is supposed to be included only from win_compat.h
26 #endif /* OMPI_WIN_COMPAT_H */
27
28 #define DST_NONE 0 /* not on dst */
29 #define DST_USA 1 /* USA style dst */
30 #define DST_AUST 2 /* Australian style dst */
31 #define DST_WET 3 /* Western European dst */
32 #define DST_MET 4 /* Middle European dst */
33 #define DST_EET 5 /* Eastern European dst */
34 #define DST_CAN 6 /* Canada */
35
36 #define TIMEVAL_TO_TIMESPEC(tv, ts) \
37 (ts)->tv_sec = (tv)->tv_sec; \
38 (ts)->tv_nsec = (tv)->tv_usec * 1000;
39
40 #define TIMESPEC_TO_TIMEVAL(tv, ts) \
41 (tv)->tv_sec = (ts)->tv_sec; \
42 (tv)->tv_usec = (ts)->tv_nsec / 1000;
43
44
45 /* some more utility functions */
46 /* Operations on timevals. */
47 #ifndef timerclear
48 #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
49 #endif
50
51 #ifndef timerisset
52 #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
53 #endif
54
55 #ifndef timercmp
56 #define timercmp(tvp, uvp, cmp) \
57 (((tvp)->tv_sec == (uvp)->tv_sec) ? \
58 ((tvp)->tv_usec cmp (uvp)->tv_usec) : \
59 ((tvp)->tv_sec cmp (uvp)->tv_sec))
60 #endif
61
62 #ifndef timeradd
63 #define timeradd(tvp, uvp, vvp) \
64 do { \
65 (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
66 (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
67 if ((vvp)->tv_usec >= 1000000) { \
68 (vvp)->tv_sec++; \
69 (vvp)->tv_usec -= 1000000; \
70 } \
71 } while (0)
72 #endif
73
74 #ifndef timersub
75 #define timersub(tvp, uvp, vvp) \
76 do { \
77 (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
78 (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
79 if ((vvp)->tv_usec < 0) { \
80 (vvp)->tv_sec--; \
81 (vvp)->tv_usec += 1000000; \
82 } \
83 } while (0)
84 #endif
85
86 /* Operations on timespecs. */
87
88 #ifndef timespecclear
89 #define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0
90 #endif
91
92 #ifndef timespecisset
93 #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec)
94 #endif
95
96 #ifndef timespeccmp
97 #define timespeccmp(tsp, usp, cmp) \
98 (((tsp)->tv_sec == (usp)->tv_sec) ? \
99 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
100 ((tsp)->tv_sec cmp (usp)->tv_sec))
101 #endif
102
103 #ifndef timespecadd
104 #define timespecadd(tsp, usp, vsp) \
105 do { \
106 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
107 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
108 if ((vsp)->tv_nsec >= 1000000000L) { \
109 (vsp)->tv_sec++; \
110 (vsp)->tv_nsec -= 1000000000L; \
111 } \
112 } while (0)
113 #endif
114
115 #ifndef timespecsub
116 #define timespecsub(tsp, usp, vsp) \
117 do { \
118 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
119 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
120 if ((vsp)->tv_nsec < 0) { \
121 (vsp)->tv_sec--; \
122 (vsp)->tv_nsec += 1000000000L; \
123 } \
124 } while (0)
125 #endif
126
127 /*
128 * Names of the interval timers, and structure
129 * defining a timer setting.
130 */
131 #define ITIMER_REAL 0
132 #define ITIMER_VIRTUAL 1
133 #define ITIMER_PROF 2
134
135 struct itimerval {
136 struct timeval it_interval; /* timer interval */
137 struct timeval it_value; /* current value */
138 };
139
140 /*
141 * Getkerninfo clock information structure
142 */
143 struct clockinfo {
144 int hz; /* clock frequency */
145 int tick; /* micro-seconds per hz tick */
146 int tickadj; /* clock skew rate for adjtime() */
147 int stathz; /* statistics clock frequency */
148 int profhz; /* profiling clock frequency */
149 };
150
151 #define CLOCK_REALTIME 0
152 #define CLOCK_VIRTUAL 1
153 #define CLOCK_PROF 2
154
155 #define TIMER_RELTIME 0x0 /* relative timer */
156 #define TIMER_ABSTIME 0x1 /* absolute timer */
157
158 #ifndef OMPI_TIMESPEC
159 #define OMPI_TIMESPEC
160 struct timespec
161 {
162 long tv_sec;
163 long tv_nsec;
164 };
165 #endif
166
167
168 /*
169 NOTE: The use of timezone is obsolete even in linux and my gettimeofday
170 function is not going to support it either. So, please be aware of the
171 fact that if you expect to pass anything here, then you are DEAD :-D */
172 struct timezone
173 {
174 int tz_minuteswest;
175 int tz_dsttime;
176 };
177
178 BEGIN_C_DECLS
179
180 OPAL_DECLSPEC int gettimeofday (struct timeval *tv, struct timezone *tz);
181
182 END_C_DECLS
183
184 #endif /* OMPI_TIME_H */
clockinfo
Definition: ompi_time.h:143
itimerval
Definition: ompi_time.h:135
timespec
Definition: ompi_time.h:160
timezone
Definition: ompi_time.h:172