OpenMPI  0.1.1
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 */
Definition: ompi_time.h:143
Definition: ompi_time.h:135
Definition: ompi_time.h:160
Definition: ompi_time.h:172