move timers code to libsys

include/Makefile

@@ -23,7 +23,7 @@ INCS+=	minix/a.out.h minix/bitmap.h minix/callnr.h minix/cdrom.h \
 	minix/portio.h minix/profile.h minix/queryparam.h \
 	minix/rs.h minix/safecopies.h minix/sched.h minix/sef.h minix/sound.h \
 	minix/sys_config.h minix/sysinfo.h minix/syslib.h \
-	minix/sysutil.h minix/tty.h minix/type.h minix/types.h \
+	minix/sysutil.h minix/timers.h minix/tty.h minix/type.h minix/types.h \
 	minix/u64.h minix/vfsif.h minix/vm.h \
 	minix/compiler.h minix/compiler-ack.h minix/sha2.h
 INCS+=	net/hton.h net/if.h net/ioctl.h net/netlib.h

include/minix/drivers.h

@@ -21,6 +21,7 @@
 #include <minix/devio.h>
 #include <minix/syslib.h>
 #include <minix/sysutil.h>
+#include <minix/timers.h>
 #include <minix/bitmap.h>
 
 #include <machine/interrupt.h>	/* IRQ vectors and miscellaneous ports */

include/minix/timers.h

@@ -0,0 +1,16 @@
+#ifndef _MINIX_TIMERS_H
+#define _MINIX_TIMERS_H
+
+/* Timers abstraction for system processes. This would be in minix/sysutil.h
+ * if it weren't for naming conflicts.
+ */
+
+#include <timers.h>
+
+_PROTOTYPE( void init_timer, (timer_t *tp));
+_PROTOTYPE( void set_timer, (timer_t *tp, int ticks, tmr_func_t watchdog,
+	int arg));
+_PROTOTYPE( void cancel_timer, (timer_t *tp));
+_PROTOTYPE( void expire_timers, (clock_t now));
+
+#endif /* _MINIX_TIMERS_H */