add directory kernel

kernel/0.1x/linux-0.12/include/sys/time.h

@@ -0,0 +1,63 @@
+#ifndef _SYS_TIME_H
+#define _SYS_TIME_H
+
+/* gettimofday returns this */
+struct timeval {
+	long	tv_sec;		/* seconds */
+	long	tv_usec;	/* microseconds */
+};
+
+struct timezone {
+	int	tz_minuteswest;	/* minutes west of Greenwich */
+	int	tz_dsttime;	/* type of dst correction */
+};
+
+#define	DST_NONE	0	/* not on dst */
+#define	DST_USA		1	/* USA style dst */
+#define	DST_AUST	2	/* Australian style dst */
+#define	DST_WET		3	/* Western European dst */
+#define	DST_MET		4	/* Middle European dst */
+#define	DST_EET		5	/* Eastern European dst */
+#define	DST_CAN		6	/* Canada */
+#define	DST_GB		7	/* Great Britain and Eire */
+#define	DST_RUM		8	/* Rumania */
+#define	DST_TUR		9	/* Turkey */
+#define	DST_AUSTALT	10	/* Australian style with shift in 1986 */
+
+#define FD_SET(fd,fdsetp)	(*(fdsetp) |= (1 << (fd)))
+#define FD_CLR(fd,fdsetp)	(*(fdsetp) &= ~(1 << (fd)))
+#define FD_ISSET(fd,fdsetp)	((*(fdsetp) >> fd) & 1)
+#define FD_ZERO(fdsetp)		(*(fdsetp) = 0)
+
+/*
+ * Operations on timevals.
+ *
+ * NB: timercmp does not work for >= or <=.
+ */
+#define	timerisset(tvp)		((tvp)->tv_sec || (tvp)->tv_usec)
+#define	timercmp(tvp, uvp, cmp)	\
+	((tvp)->tv_sec cmp (uvp)->tv_sec || \
+	 (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
+#define	timerclear(tvp)		((tvp)->tv_sec = (tvp)->tv_usec = 0)
+
+/*
+ * Names of the interval timers, and structure
+ * defining a timer setting.
+ */
+#define	ITIMER_REAL	0
+#define	ITIMER_VIRTUAL	1
+#define	ITIMER_PROF	2
+
+struct	itimerval {
+	struct	timeval it_interval;	/* timer interval */
+	struct	timeval it_value;	/* current value */
+};
+
+#include <time.h>
+#include <sys/types.h>
+
+int gettimeofday(struct timeval * tp, struct timezone * tz);
+int select(int width, fd_set * readfds, fd_set * writefds,
+	fd_set * exceptfds, struct timeval * timeout);
+
+#endif /*_SYS_TIME_H*/