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Mon May 15 14:26:00 2000 Joel Sherrill <joel@oarcorp.com>

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* libc/sys/rtems/sys/time.h: Add macros for manipulating timeval
	structures.
This commit is contained in:
Ranjith Kumaran 2000-05-15 18:30:03 +00:00
parent 4004738117
commit 75362a768b
2 changed files with 32 additions and 0 deletions
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5
newlib/ChangeLog
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@ -1,3 +1,8 @@
Mon May 15 14:26:00 2000 Joel Sherrill <joel@oarcorp.com>
* libc/sys/rtems/sys/time.h: Add macros for manipulating timeval
structures.
Wed May 10 19:24:53 2000 Jim Wilson <wilson@cygnus.com>
* libc/include/machine/ieeefp.h: Add ia64 support.

27
newlib/libc/sys/rtems/sys/time.h
View File

@ -65,6 +65,33 @@ int gettimeofday(
struct timezone *tzp
);
/* Convenience macros for operations on timevals.
NOTE: `timercmp' does not work for >= or <=. */
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timerclear(tvp) ((tvp)->tv_sec = (tvp)->tv_usec = 0)
#define timercmp(a, b, CMP) \
(((a)->tv_sec == (b)->tv_sec) ? \
((a)->tv_usec CMP (b)->tv_usec) : \
((a)->tv_sec CMP (b)->tv_sec))
#define timeradd(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec + (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec + (b)->tv_usec; \
if ((result)->tv_usec >= 1000000) \
{ \
++(result)->tv_sec; \
(result)->tv_usec -= 1000000; \
} \
} while (0)
#define timersub(a, b, result) \
do { \
(result)->tv_sec = (a)->tv_sec - (b)->tv_sec; \
(result)->tv_usec = (a)->tv_usec - (b)->tv_usec; \
if ((result)->tv_usec < 0) { \
--(result)->tv_sec; \
(result)->tv_usec += 1000000; \
} \
} while (0)
#ifdef __cplusplus
}
#endif