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- /*
- * top - a top users display for Unix
- *
- * SYNOPSIS: DEC Alpha AXP running OSF/1, versions 1.2, 1.3, 2.0, 3.0
- *
- * DESCRIPTION:
- * This is the machine-dependent module for DEC OSF/1
- * It is known to work on OSF/1 1.2, 1.3, 2.0-T3, and 3.0
- * WARNING: do not use optimization with the standard "cc" compiler that
- * . comes with V3.0. There is some sort of bug that causes the
- * . resulting executable to core dump. When asked for compiler
- * . options, do NOT specify -O.
- *
- * LIBS: -lmld -lmach
- *
- * CFLAGS: -DHAVE_GETOPT
- *
- * AUTHOR: Anthony Baxter, <anthony@aaii.oz.au>
- * Derived originally from m_ultrix, by David S. Comay <dsc@seismo.css.gov>,
- * although by now there is hardly any of the code from m_ultrix left.
- * Helped a lot by having the source for syd(1), by Claus Kalle, and
- * from several people at DEC who helped with providing information on
- * some of the less-documented bits of the kernel interface.
- *
- * Modified: 31-Oct-94, Pat Welch, tpw@physics.orst.edu
- * changed _mpid to pidtab for compatibility with OSF/1 version 3.0
- *
- * Modified: 13-Dec-94, William LeFebvre, lefebvre@dis.anl.gov
- * removed used of pidtab (that was bogus) and changed things to
- * automatically detect the absence of _mpid in the nlist and
- * recover gracefully---this appears to be the only difference
- * with 3.0.
- */
- /*
- * $Id: m_decosf1.c,v 1.14 1994/01/18 07:34:42 anthony Exp $
- * Theres some real icky bits in this code - you have been warned :)
- * Extremely icky bits are marked with FIXME:
- *
- * Theory of operation:
- *
- * Use Mach calls to build up a structure that contains all the sorts
- * of stuff normally found in a struct proc in a BSD system. Then
- * everything else uses this structure. This has major performance wins,
- * and also should work for future versions of the O/S.
- */
-
- #include <sys/types.h>
- #include <sys/signal.h>
- #include <sys/param.h>
-
- #include <string.h>
- #include <sys/user.h>
- #include <stdio.h>
- #include <nlist.h>
- #include <math.h>
- #include <sys/dir.h>
- #include <sys/user.h>
- #include <sys/proc.h>
- #include <sys/dk.h>
- #include <sys/vm.h>
- #include <sys/file.h>
- #include <sys/time.h>
- /* #include <machine/pte.h> */
- #include <sys/table.h>
- #include <mach.h>
- #include <mach/mach_types.h>
- #include <mach/vm_statistics.h>
- #include <sys/syscall.h> /* for SYS_setpriority, in setpriority(), below */
-
-
- #include "top.h"
- #include "machine.h"
-
- extern int errno, sys_nerr;
- extern char *sys_errlist[];
- #define strerror(e) (((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
-
- #define VMUNIX "/vmunix"
- #define KMEM "/dev/kmem"
- #define MEM "/dev/mem"
-
- /* get_process_info passes back a handle. This is what it looks like: */
-
- struct handle
- {
- struct osf1_top_proc **next_proc; /* points to next valid proc pointer */
- int remaining; /* number of pointers remaining */
- };
-
- /* declarations for load_avg */
- #include "loadavg.h"
-
- /* definitions for indices in the nlist array */
- #define X_MPID 0
-
- static struct nlist nlst[] = {
- { "_mpid" }, /* 0 */
- { 0 }
- };
-
- /* Some versions of OSF/1 don't support reporting of the last PID.
- This flag indicates whether or not we are reporting the last PID. */
- static int do_last_pid = 1;
-
- /*
- * These definitions control the format of the per-process area
- */
-
- static char header[] =
- " PID X PRI NICE SIZE RES STATE TIME CPU COMMAND";
- /* 0123456 -- field to fill in starts at header+6 */
- #define UNAME_START 6
-
- #define Proc_format \
- "%5d %-8.8s %3d %4d %5s %5s %-5s %-6s %5.2f%% %.14s"
-
-
- /* process state names for the "STATE" column of the display */
- /* the extra nulls in the string "run" are for adding a slash and
- * the processor number when needed. Although OSF/1 doesnt support
- * multiple processors yet, (and this module _certainly_ doesnt
- * support it, either, we may as well plan for the future. :-)
- */
-
- char *state_abbrev[] =
- {
- "", "run\0\0\0", "WAIT", "sleep", "sleep", "stop", "halt", "???", "zomb"
- };
-
-
- static int kmem, mem;
-
- /* values that we stash away in _init and use in later routines */
-
- static double logcpu;
-
- /* these are retrieved from the kernel in _init */
-
- static unsigned long proc;
- static int nproc;
- static load_avg ccpu;
-
- typedef long mtime_t;
-
- /* these are offsets obtained via nlist and used in the get_ functions */
-
- static unsigned long mpid_offset;
-
- /* these are for detailing the process states */
-
- int process_states[7];
- char *procstatenames[] = {
- "", " running, ", " waiting, ", " sleeping, ", " idle, ",
- " stopped", "",
- NULL
- };
-
- /* these are for detailing the cpu states */
-
- int cpu_states[4];
- char *cpustatenames[] = {
- "user", "nice", "system", "idle", NULL
- };
-
- long old_cpu_ticks[4];
-
- /* these are for detailing the memory statistics */
-
- int memory_stats[8];
- char *memorynames[] = {
- "Real: ", "K/", "K act/tot ", "Virtual: ", "M/",
- "M use/tot ", "Free: ", "K", NULL
- };
-
- /* these are for getting the memory statistics */
-
- static int pageshift; /* log base 2 of the pagesize */
-
- /* define pagetok in terms of pageshift */
-
- #define pagetok(size) ((size) << pageshift)
-
- /* take a process, make it a mach task, and grab all the info out */
- void do_threads_calculations();
-
- /*
- * Because I dont feel like repeatedly grunging through the kernel with
- * Mach calls, and I also dont want the horrid performance hit this
- * would give, I read the stuff I need out, and put in into my own
- * structure, for later use.
- */
-
- struct osf1_top_proc {
- size_t p_mach_virt_size;
- char p_mach_state;
- fixpt_t p_mach_pct_cpu; /* aka p_pctcpu */
- int used_ticks;
- size_t process_size;
- pid_t p_pid;
- uid_t p_ruid;
- char p_pri;
- char p_nice;
- size_t p_rssize;
- char u_comm[PI_COMLEN + 1];
- } ;
-
- /* these are for keeping track of the proc array */
-
- static int bytes;
- static int pref_len;
- static struct osf1_top_proc *pbase;
- static struct osf1_top_proc **pref;
-
- /* useful externals */
- extern int errno;
- extern char *sys_errlist[];
-
- long percentages();
-
- machine_init(statics)
- struct statics *statics;
- {
- register int i = 0;
- register int pagesize;
- struct tbl_sysinfo sibuf;
-
- if ((kmem = open(KMEM, O_RDONLY)) == -1) {
- perror(KMEM);
- return(-1);
- }
- if ((mem = open(MEM, O_RDONLY)) == -1) {
- perror(MEM);
- return(-1);
- }
-
- /* get the list of symbols we want to access in the kernel */
- if (nlist(VMUNIX, nlst) == -1)
- {
- perror("TOP(nlist)");
- return (-1);
- }
-
- if (nlst[X_MPID].n_type == 0)
- {
- /* this kernel has no _mpid, so go without */
- do_last_pid = 0;
- }
- else
- {
- /* stash away mpid pointer for later use */
- mpid_offset = nlst[X_MPID].n_value;
- }
-
- /* get the symbol values out of kmem */
- nproc = table(TBL_PROCINFO, 0, (struct tbl_procinfo *)NULL, 32767, 0);
-
- /* allocate space for proc structure array and array of pointers */
- bytes = nproc * sizeof(struct osf1_top_proc);
- pbase = (struct osf1_top_proc *)malloc(bytes);
- pref = (struct osf1_top_proc **)malloc(nproc *
- sizeof(struct osf1_top_proc *));
-
- /* Just in case ... */
- if (pbase == (struct osf1_top_proc *)NULL ||
- pref == (struct osf1_top_proc **)NULL)
- {
- fprintf(stderr, "top: cannot allocate sufficient memory\n");
- return(-1);
- }
-
- /* get the page size with "getpagesize" and calculate pageshift from it */
- pagesize = getpagesize();
- pageshift = 0;
- while (pagesize > 1)
- {
- pageshift++;
- pagesize >>= 1;
- }
-
- /* we only need the amount of log(2)1024 for our conversion */
- pageshift -= LOG1024;
-
- /* fill in the statics information */
- statics->procstate_names = procstatenames;
- statics->cpustate_names = cpustatenames;
- statics->memory_names = memorynames;
-
- /* initialise this, for calculating cpu time */
- if (table(TBL_SYSINFO,0,&sibuf,1,sizeof(struct tbl_sysinfo))<0) {
- perror("TBL_SYSINFO");
- return(-1);
- }
- old_cpu_ticks[0] = sibuf.si_user;
- old_cpu_ticks[1] = sibuf.si_nice;
- old_cpu_ticks[2] = sibuf.si_sys;
- old_cpu_ticks[3] = sibuf.si_idle;
-
- /* all done! */
- return(0);
- }
-
- char *format_header(uname_field)
- register char *uname_field;
- {
- register char *ptr;
-
- ptr = header + UNAME_START;
- while (*uname_field != '\0')
- {
- *ptr++ = *uname_field++;
- }
-
- return(header);
- }
-
- get_system_info(si)
- struct system_info *si;
- {
- struct tbl_loadavg labuf;
- struct tbl_sysinfo sibuf;
- struct tbl_swapinfo swbuf;
- vm_statistics_data_t vmstats;
- int swap_pages=0,swap_free=0,i;
- long new_ticks[4],diff_ticks[4];
- long delta_ticks;
-
- if (do_last_pid)
- {
- /* last pid assigned */
- (void) getkval(mpid_offset, &(si->last_pid), sizeof(si->last_pid),
- "_mpid");
- }
- else
- {
- si->last_pid = -1;
- }
-
- /* get load averages */
- if (table(TBL_LOADAVG,0,&labuf,1,sizeof(struct tbl_loadavg))<0) {
- perror("TBL_LOADAVG");
- return(-1);
- }
- if (labuf.tl_lscale) /* scaled */
- for(i=0;i<3;i++)
- si->load_avg[i] = ((double)labuf.tl_avenrun.l[i] /
- (double)labuf.tl_lscale );
- else /* not scaled */
- for(i=0;i<3;i++)
- si->load_avg[i] = labuf.tl_avenrun.d[i];
-
- /* array of cpu state counters */
- if (table(TBL_SYSINFO,0,&sibuf,1,sizeof(struct tbl_sysinfo))<0) {
- perror("TBL_SYSINFO");
- return(-1);
- }
- new_ticks[0] = sibuf.si_user ; new_ticks[1] = sibuf.si_nice;
- new_ticks[2] = sibuf.si_sys ; new_ticks[3] = sibuf.si_idle;
- delta_ticks=0;
- for(i=0;i<4;i++) {
- diff_ticks[i] = new_ticks[i] - old_cpu_ticks[i];
- delta_ticks += diff_ticks[i];
- old_cpu_ticks[i] = new_ticks[i];
- }
- si->cpustates = cpu_states;
- if(delta_ticks)
- for(i=0;i<4;i++)
- si->cpustates[i] = (int)( ( (double)diff_ticks[i] /
- (double)delta_ticks ) * 1000 );
-
- /* memory information */
- /* this is possibly bogus - we work out total # pages by */
- /* adding up the free, active, inactive, wired down, and */
- /* zero filled. Anyone who knows a better way, TELL ME! */
- /* Change: dont use zero filled. */
- (void) vm_statistics(task_self(),&vmstats);
-
- /* thanks DEC for the table() command. No thanks at all for */
- /* omitting the man page for it from OSF/1 1.2, and failing */
- /* to document SWAPINFO in the 1.3 man page. Lets hear it for */
- /* include files. */
- i=0;
- while(table(TBL_SWAPINFO,i,&swbuf,1,sizeof(struct tbl_swapinfo))>0) {
- swap_pages += swbuf.size;
- swap_free += swbuf.free;
- i++;
- }
- memory_stats[0] = -1;
- memory_stats[1] = pagetok(vmstats.active_count);
- memory_stats[2] = pagetok((vmstats.free_count + vmstats.active_count +
- vmstats.inactive_count + vmstats.wire_count));
- memory_stats[3] = -1;
- memory_stats[4] = pagetok((swap_pages - swap_free))/1024;
- memory_stats[5] = pagetok(swap_pages)/1024;
- memory_stats[6] = -1;
- memory_stats[7] = pagetok(vmstats.free_count);
- si->memory = memory_stats;
- }
-
- static struct handle handle;
-
- caddr_t get_process_info(si, sel, compare)
- struct system_info *si;
- struct process_select *sel;
- int (*compare)();
- {
- register int i;
- register int total_procs;
- register int active_procs;
- register struct osf1_top_proc **prefp;
- register struct osf1_top_proc *pp;
- struct tbl_procinfo p_i[8];
- int j,k,r;
-
- /* these are copied out of sel for speed */
- int show_idle;
- int show_system;
- int show_uid;
- int show_command;
-
- /* get a pointer to the states summary array */
- si->procstates = process_states;
-
- /* set up flags which define what we are going to select */
- show_idle = sel->idle;
- show_system = sel->system;
- show_uid = sel->uid != -1;
- show_command = sel->command != NULL;
-
- /* count up process states and get pointers to interesting procs */
- total_procs = 0;
- active_procs = 0;
- memset((char *)process_states, 0, sizeof(process_states));
- process_states[0]=0;
- process_states[1]=0;
- process_states[2]=0;
- process_states[3]=0;
- process_states[4]=0;
- process_states[5]=0;
- process_states[6]=0;
- prefp = pref;
- pp=pbase;
- for (j=0; j<nproc; j += 8)
- {
- r = table(TBL_PROCINFO, j, (struct tbl_procinfo *)p_i, 8,
- sizeof(struct tbl_procinfo));
- for (k=0; k < r; k++ , pp++)
- {
- if(p_i[k].pi_pid == 0)
- {
- pp->p_pid = 0;
- }
- else
- {
- pp->p_pid = p_i[k].pi_pid;
- pp->p_ruid = p_i[k].pi_ruid;
- pp->p_nice = getpriority(PRIO_PROCESS,p_i[k].pi_pid);
- /* Load useful values into the proc structure */
- do_threads_calculations(pp);
- /*
- * Place pointers to each valid proc structure in pref[].
- * Process slots that are actually in use have a non-zero
- * status field. Processes with SSYS set are system
- * processes---these get ignored unless show_sysprocs is set.
- */
- if (pp->p_mach_state != 0)
- {
- total_procs++;
- process_states[pp->p_mach_state]++;
- if ((pp->p_mach_state != SZOMB) &&
- (pp->p_mach_state != SIDL) &&
- (show_idle || (pp->p_mach_pct_cpu != 0) ||
- (pp->p_mach_state == SRUN)) &&
- (!show_uid || pp->p_ruid == (uid_t)sel->uid)) {
- *prefp++ = pp;
- active_procs++;
- }
- }
- }
- }
- }
-
- /* if requested, sort the "interesting" processes */
- if (compare != NULL)
- {
- qsort((char *)pref, active_procs, sizeof(struct osf1_top_proc *),
- compare);
- }
-
- /* remember active and total counts */
- si->p_total = total_procs;
- si->p_active = pref_len = active_procs;
-
- /* pass back a handle */
- handle.next_proc = pref;
- handle.remaining = active_procs;
- return((caddr_t)&handle);
- }
-
- char fmt[128]; /* static area where result is built */
-
- char *format_next_process(handle, get_userid)
- caddr_t handle;
- char *(*get_userid)();
- {
- register struct osf1_top_proc *pp;
- register long cputime;
- register double pct;
- int where;
- struct user u;
- struct handle *hp;
-
- /* find and remember the next proc structure */
- hp = (struct handle *)handle;
- pp = *(hp->next_proc++);
- hp->remaining--;
-
- /* get the process's user struct and set cputime */
-
- if (table(TBL_UAREA,pp->p_pid,&u,1,sizeof(struct user))<0) {
- /* whoops, it must have died between the read of the proc area
- * and now. Oh well, lets just dump some meaningless thing out
- * to keep the rest of the program happy
- */
- sprintf(fmt,
- Proc_format,
- pp->p_pid,
- (*get_userid)(pp->p_ruid),
- 0,
- 0,
- "",
- "",
- "dead",
- "",
- 0.0,
- "<dead>");
- return(fmt);
- }
-
- /* set u_comm for system processes */
- if (u.u_comm[0] == '\0')
- {
- if (pp->p_pid == 0)
- {
- (void) strcpy(u.u_comm, "[idle]");
- }
- else if (pp->p_pid == 2)
- {
- (void) strcpy(u.u_comm, "[execpt.hndlr]");
- }
- }
- if (where == 1) {
- /*
- * Print swapped processes as <pname>
- */
- char buf[sizeof(u.u_comm)];
- (void) strncpy(buf, u.u_comm, sizeof(u.u_comm));
- u.u_comm[0] = '<';
- (void) strncpy(&u.u_comm[1], buf, sizeof(u.u_comm) - 2);
- u.u_comm[sizeof(u.u_comm) - 2] = '\0';
- (void) strncat(u.u_comm, ">", sizeof(u.u_comm) - 1);
- u.u_comm[sizeof(u.u_comm) - 1] = '\0';
- }
-
- cputime = u.u_ru.ru_utime.tv_sec + u.u_ru.ru_stime.tv_sec;
-
- /* calculate the base for cpu percentages */
- pct = pctdouble(pp->p_mach_pct_cpu);
-
- /* format this entry */
- sprintf(fmt,
- Proc_format,
- pp->p_pid,
- (*get_userid)(pp->p_ruid),
- pp->p_pri,
- pp->p_nice,
- format_k(pp->p_mach_virt_size/1024),
- format_k(pp->p_rssize/1000),
- state_abbrev[pp->p_mach_state],
- format_time(cputime),
- 100.0 * ((double)pp->p_mach_pct_cpu / 10000.0),
- printable(u.u_comm));
-
- /* return the result */
- return(fmt);
- }
-
- /*
- * getkval(offset, ptr, size, refstr) - get a value out of the kernel.
- * "offset" is the byte offset into the kernel for the desired value,
- * "ptr" points to a buffer into which the value is retrieved,
- * "size" is the size of the buffer (and the object to retrieve),
- * "refstr" is a reference string used when printing error meessages,
- * if "refstr" starts with a '!', then a failure on read will not
- * be fatal (this may seem like a silly way to do things, but I
- * really didn't want the overhead of another argument).
- *
- */
-
- getkval(offset, ptr, size, refstr)
-
- unsigned long offset;
- int *ptr;
- int size;
- char *refstr;
-
- {
- if (lseek(kmem, (long)offset, L_SET) == -1) {
- if (*refstr == '!')
- refstr++;
- (void) fprintf(stderr, "%s: lseek to %s: %s\n", KMEM,
- refstr, strerror(errno));
- quit(23);
- }
- if (read(kmem, (char *) ptr, size) == -1) {
- if (*refstr == '!')
- return(0);
- else {
- (void) fprintf(stderr, "%s: reading %s: %s\n", KMEM,
- refstr, strerror(errno));
- quit(23);
- }
- }
- return(1);
- }
-
- /* comparison routine for qsort */
-
- /*
- * proc_compare - comparison function for "qsort"
- * Compares the resource consumption of two processes using five
- * distinct keys. The keys (in descending order of importance) are:
- * percent cpu, cpu ticks, state, resident set size, total virtual
- * memory usage. The process states are ordered as follows (from least
- * to most important): WAIT, zombie, sleep, stop, start, run. The array
- * declaration below maps a process state index into a number that
- * reflects this ordering.
- */
-
- static unsigned char sorted_state[] =
- {
- 0, /*""*/
- 8, /*"run"*/
- 1, /*"WAIT"*/
- 6, /*"sleep"*/
- 5, /*"idle"*/
- 7, /*"stop"*/
- 4, /*"halt"*/
- 3, /*"???"*/
- 2, /*"zomb"*/
- };
-
- proc_compare(pp1, pp2)
-
- struct osf1_top_proc **pp1;
- struct osf1_top_proc **pp2;
-
- {
- register struct osf1_top_proc *p1;
- register struct osf1_top_proc *p2;
- register int result;
- register pctcpu lresult=0.0;
- struct user u1, u2;
-
- /* remove one level of indirection */
- p1 = *pp1;
- p2 = *pp2;
-
- /* compare percent cpu (pctcpu) */
- if ((lresult = p2->p_mach_pct_cpu - p1->p_mach_pct_cpu) == 0)
- {
- /* use process state to break the tie */
- if ((result = sorted_state[p2->p_mach_state] -
- sorted_state[p1->p_mach_state]) == 0)
- {
- /* use elapsed time to break the tie */
- if ((result = p2->used_ticks - p1->used_ticks) == 0)
- {
- /* use priority to break the tie */
- if ((result = p2->p_pri - p1->p_pri) == 0)
- {
- /* use resident set size (rssize) to break the tie */
- if ((result = p2->p_rssize - p1->p_rssize) == 0)
- {
- /* use total memory to break the tie */
- result = p2->process_size - p1->process_size;
- }
- }
- }
- }
- }
-
- if(lresult)
- result = lresult < 0 ? -1 : 1;
- return(result);
- }
-
- /*
- * proc_owner(pid) - returns the uid that owns process "pid", or -1 if
- * the process does not exist.
- * It is EXTREMLY IMPORTANT that this function work correctly.
- * If top runs setuid root (as in SVR4), then this function
- * is the only thing that stands in the way of a serious
- * security problem. It validates requests for the "kill"
- * and "renice" commands.
- */
-
- int proc_owner(pid)
-
- int pid;
-
- {
- register int cnt;
- register struct osf1_top_proc **prefp;
- register struct osf1_top_proc *pp;
-
- prefp = pref;
- cnt = pref_len;
- while (--cnt >= 0)
- {
- if ((pp = *prefp++)->p_pid == (pid_t)pid)
- {
- return((int)pp->p_ruid);
- }
- }
- return(-1);
- }
-
-
- /*
- * We use the Mach interface, as well as the table(UAREA,,,) call to
- * get some more information, then put it into unused fields in our
- * copy of the proc structure, to make it faster and easier to get at
- * later.
- */
- void do_threads_calculations(thisproc)
- struct osf1_top_proc *thisproc;
- {
- int j;
- task_t thistask;
- task_basic_info_data_t taskinfo;
- unsigned int taskinfo_l;
- thread_array_t threadarr;
- unsigned int threadarr_l;
- thread_basic_info_t threadinfo;
- thread_basic_info_data_t threadinfodata;
- unsigned int threadinfo_l;
- int task_tot_cpu=0; /* total cpu usage of threads in a task */
- struct user u;
-
- thisproc->p_pri=0;
- thisproc->p_rssize=0;
- thisproc->p_mach_virt_size=0;
- thisproc->p_mach_state=0;
- thisproc->p_mach_pct_cpu=0;
-
- if(task_by_unix_pid(task_self(), thisproc->p_pid, &thistask)
- != KERN_SUCCESS){
- thisproc->p_mach_state=8; /* (zombie) */
- } else {
- taskinfo_l=TASK_BASIC_INFO_COUNT;
- if(task_info(thistask, TASK_BASIC_INFO, (task_info_t) &taskinfo,
- &taskinfo_l)
- != KERN_SUCCESS) {
- thisproc->p_mach_state=8; /* (zombie) */
- } else {
- int minim_state=99,mcurp=1000,mbasp=1000,mslpt=999;
-
- thisproc->p_rssize=taskinfo.resident_size;
- thisproc->p_mach_virt_size=taskinfo.virtual_size;
-
- (void) task_threads(thistask, &threadarr, &threadarr_l);
- threadinfo= &threadinfodata;
- for(j=0; j < threadarr_l; j++) {
- threadinfo_l=THREAD_BASIC_INFO_COUNT;
- if(thread_info(threadarr[j],THREAD_BASIC_INFO,
- (thread_info_t) threadinfo, &threadinfo_l) == KERN_SUCCESS) {
-
- task_tot_cpu += threadinfo->cpu_usage;
- if(minim_state>threadinfo->run_state)
- minim_state=threadinfo->run_state;
- if(mcurp>threadinfo->cur_priority)
- mcurp=threadinfo->cur_priority;
- if(mbasp>threadinfo->base_priority)
- mbasp=threadinfo->base_priority;
- if(mslpt>threadinfo->sleep_time)
- mslpt=threadinfo->sleep_time;
- }
- }
- switch (minim_state) {
- case TH_STATE_RUNNING:
- thisproc->p_mach_state=1; break;
- case TH_STATE_UNINTERRUPTIBLE:
- thisproc->p_mach_state=2; break;
- case TH_STATE_WAITING:
- thisproc->p_mach_state=(threadinfo->sleep_time > 20) ? 4 : 3; break;
- case TH_STATE_STOPPED:
- thisproc->p_mach_state=5; break;
- case TH_STATE_HALTED:
- thisproc->p_mach_state=6; break;
- default:
- thisproc->p_mach_state=7; break;
- }
-
- thisproc->p_pri=mcurp;
- thisproc->p_mach_pct_cpu=(fixpt_t)(task_tot_cpu*10);
- vm_deallocate(task_self(),(vm_address_t)threadarr,threadarr_l);
- }
- }
- if (table(TBL_UAREA,thisproc->p_pid,&u,1,sizeof(struct user))>=0) {
- thisproc->used_ticks=(u.u_ru.ru_utime.tv_sec + u.u_ru.ru_stime.tv_sec);
- thisproc->process_size=u.u_tsize + u.u_dsize + u.u_ssize;
- }
- }
-
- /* The reason for this function is that the system call will let
- * someone lower their own processes priority (because top is setuid :-(
- * Yes, using syscall() is a hack, if you can come up with something
- * better, then I'd be thrilled to hear it. I'm not holding my breath,
- * though.
- * Anthony.
- */
- int setpriority(int dummy, int procnum, int niceval)
- {
-
- int uid, curprio;
-
- uid=getuid();
- if ( (curprio=getpriority(PRIO_PROCESS,procnum) ) == -1)
- {
- return(-1); /* errno goes back to renice_process() */
- }
- /* check for not-root - if so, dont allow users to decrease priority */
- else if ( uid && (niceval<curprio) )
- {
- errno=EACCES;
- return(-1);
- }
- return(syscall(SYS_setpriority,PRIO_PROCESS,procnum,niceval));
- }
-