35a108b911
this change
- makes panic() variadic, doing full printf() formatting -
no more NO_NUM, and no more separate printf() statements
needed to print extra info (or something in hex) before panicing
- unifies panic() - same panic() name and usage for everyone -
vm, kernel and rest have different names/syntax currently
in order to implement their own luxuries, but no longer
- throws out the 1st argument, to make source less noisy.
the panic() in syslib retrieves the server name from the kernel
so it should be clear enough who is panicing; e.g.
panic("sigaction failed: %d", errno);
looks like:
at_wini(73130): panic: sigaction failed: 0
syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
- throws out report() - printf() is more convenient and powerful
- harmonizes/fixes the use of panic() - there were a few places
that used printf-style formatting (didn't work) and newlines
(messes up the formatting) in panic()
- throws out a few per-server panic() functions
- cleans up a tie-in of tty with panic()
merging printf() and panic() statements to be done incrementally.
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/* This file takes care of those system calls that deal with time.
|
|
*
|
|
* The entry points into this file are
|
|
* do_time: perform the TIME system call
|
|
* do_stime: perform the STIME system call
|
|
* do_times: perform the TIMES system call
|
|
*/
|
|
|
|
#include "pm.h"
|
|
#include <minix/callnr.h>
|
|
#include <minix/com.h>
|
|
#include <signal.h>
|
|
#include "mproc.h"
|
|
#include "param.h"
|
|
|
|
/*===========================================================================*
|
|
* do_time *
|
|
*===========================================================================*/
|
|
PUBLIC int do_time()
|
|
{
|
|
/* Perform the time(tp) system call. This returns the time in seconds since
|
|
* 1.1.1970. MINIX is an astrophysically naive system that assumes the earth
|
|
* rotates at a constant rate and that such things as leap seconds do not
|
|
* exist.
|
|
*/
|
|
clock_t uptime, boottime;
|
|
int s;
|
|
|
|
if ( (s=getuptime2(&uptime, &boottime)) != OK)
|
|
panic("do_time couldn't get uptime: %d", s);
|
|
|
|
mp->mp_reply.reply_time = (time_t) (boottime + (uptime/system_hz));
|
|
mp->mp_reply.reply_utime = (uptime%system_hz)*1000000/system_hz;
|
|
return(OK);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_stime *
|
|
*===========================================================================*/
|
|
PUBLIC int do_stime()
|
|
{
|
|
/* Perform the stime(tp) system call. Retrieve the system's uptime (ticks
|
|
* since boot) and pass the new time in seconds at system boot to the kernel.
|
|
*/
|
|
clock_t uptime, boottime;
|
|
int s;
|
|
|
|
if (mp->mp_effuid != SUPER_USER) {
|
|
return(EPERM);
|
|
}
|
|
if ( (s=getuptime(&uptime)) != OK)
|
|
panic("do_stime couldn't get uptime: %d", s);
|
|
boottime = (long) m_in.stime - (uptime/system_hz);
|
|
|
|
s= sys_stime(boottime); /* Tell kernel about boottime */
|
|
if (s != OK)
|
|
panic("pm: sys_stime failed: %d", s);
|
|
|
|
return(OK);
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* do_times *
|
|
*===========================================================================*/
|
|
PUBLIC int do_times()
|
|
{
|
|
/* Perform the times(buffer) system call. */
|
|
register struct mproc *rmp = mp;
|
|
clock_t user_time, sys_time, uptime;
|
|
int s;
|
|
|
|
if (OK != (s=sys_times(who_e, &user_time, &sys_time, &uptime, NULL)))
|
|
panic("do_times couldn't get times: %d", s);
|
|
rmp->mp_reply.reply_t1 = user_time; /* user time */
|
|
rmp->mp_reply.reply_t2 = sys_time; /* system time */
|
|
rmp->mp_reply.reply_t3 = rmp->mp_child_utime; /* child user time */
|
|
rmp->mp_reply.reply_t4 = rmp->mp_child_stime; /* child system time */
|
|
rmp->mp_reply.reply_t5 = uptime; /* uptime since boot */
|
|
|
|
return(OK);
|
|
}
|
|
|