/*
** calculate the process-activity during the last sample
*/
int
deviattask(struct tstat *curtpres, int ntaskpres,
struct tstat *curpexit, int nprocexit, int deviatonly,
struct tstat *devtstat, struct sstat *devsstat,
unsigned int *nprocdev, int *nprocpres,
int *totrun, int *totslpi, int *totslpu, int *totzombie)
{
register int c, d;
register struct tstat *curstat, *devstat, *procstat = 0;
struct tstat prestat;
struct pinfo *pinfo;
count_t totusedcpu;
char procsaved = 1, hashtype = 'p';
/*
** needed for sanity check later on...
*/
totusedcpu = devsstat->cpu.all.stime + devsstat->cpu.all.utime +
devsstat->cpu.all.ntime + devsstat->cpu.all.itime +
devsstat->cpu.all.wtime + devsstat->cpu.all.Itime +
devsstat->cpu.all.Stime + devsstat->cpu.all.steal;
/*
** make new list of all tasks in the process-database;
** after handling all processes, the left-overs are processes
** that have disappeared since the previous sample
*/
pdb_makeresidue();
/*
** calculate deviations per present process
*/
*nprocpres = *totrun = *totslpi = *totslpu = *totzombie = 0;
for (c=0, d=0, *nprocdev=0; c < ntaskpres; c++)
{
char newtask = 0;
curstat = curtpres+c;
if (curstat->gen.isproc)
{
(*nprocpres)++;
if (curstat->gen.state == 'Z')
{
(*totzombie)++;
}
else
{
*totrun += curstat->gen.nthrrun;
*totslpi += curstat->gen.nthrslpi;
*totslpu += curstat->gen.nthrslpu;
}
}
/*
** get previous figures from task-database
*/
if ( pdb_gettask(curstat->gen.pid, curstat->gen.isproc,
curstat->gen.btime, &pinfo))
{
/*
** task already present during the previous sample;
** if no differences with previous sample, skip task
** unless all tasks have to be shown
**
** it might be that a process appears to have no
** differences while one its threads has differences;
** than the process will be inserted as well
*/
if (deviatonly && memcmp(curstat, &pinfo->tstat,
sizeof(struct tstat)) == EQ)
{
/* remember last unsaved process */
if (curstat->gen.isproc)
{
procstat = curstat;
procsaved = 0;
}
continue;
}
/*
** differences detected, so the task was active,
** or its status or memory-occupation has changed;
** save stats from previous sample (to use for
** further calculations) and store new statistics
** in task-database
*/
prestat = pinfo->tstat; /* save old */
pinfo->tstat = *curstat; /* overwrite */
}
else
{
/*
** new task which must have been started during
** last interval
*/
memset(&prestat, 0, sizeof(prestat));
/*
** create new task struct
*/
pinfo = calloc(1, sizeof(struct pinfo));
ptrverify(pinfo, "Malloc failed for new pinfo\n");
pinfo->tstat = *curstat;
/*
** add new task to task-database
*/
pdb_addtask(curstat->gen.pid, pinfo);
newtask = 1;
}
/*
** active task found; do the difference calculations
*/
if (curstat->gen.isproc)
{
procsaved = 1;
(*nprocdev)++;
}
else
{
/*
** active thread: check if related process registered
*/
if (!procsaved)
{
devstat = devtstat+d;
calcdiff(devstat, procstat, procstat, 0,
totusedcpu);
procsaved = 1;
(*nprocdev)++;
d++;
}
}
devstat = devtstat+d;
calcdiff(devstat, curstat, &prestat, newtask, totusedcpu);
d++;
}
/*
** calculate deviations per exited process
*/
if (nprocexit > 0 && supportflags&NETATOPD)
{
if (curpexit->gen.pid)
hashtype = 'p';
else
hashtype = 'b';
netatop_exithash(hashtype);
}
for (c=0; c < nprocexit; c++)
{
/*
** check if this process has been started AND
** finished since previous sample;
** if so, it has no use to check if there is still
** existing info present in the process-database
*/
curstat = curpexit+c;
if (curstat->gen.pid) /* acctrecord contains pid? */
{
if ( pdb_gettask(curstat->gen.pid, 1,
curstat->gen.btime, &pinfo))
prestat = pinfo->tstat;
else
memset(&prestat, 0, sizeof(prestat));
}
else
{
if ( curstat->gen.btime > pretime.tv_sec )
{
/*
** process-start and -finish in same interval
*/
memset(&prestat, 0, sizeof(prestat));
}
else
{
/*
** process must be known in process-database;
** try to match one of the remaining processes
** against this exited one
*/
if ( pdb_srchresidue(curstat, &pinfo) )
prestat = pinfo->tstat;
else
memset(&prestat, 0, sizeof(prestat));
}
}
/*
** now do the calculations
*/
devstat = devtstat+d;
memset(devstat, 0, sizeof *devstat);
devstat->gen = curstat->gen;
if ( curstat->gen.pid == 0 )
devstat->gen.pid = prestat.gen.pid;
if (!prestat.gen.pid)
devstat->gen.excode |= ~(INT_MAX);
strcpy(devstat->gen.cmdline, prestat.gen.cmdline);
/*
** due to the strange exponent-type storage of values
** in the process accounting record, the resource-value
** in the exit-record might have been smaller than the
** stored value of the last registered sample; in that
** case the deviation should be set to zero
*/
if (curstat->cpu.stime > prestat.cpu.stime)
devstat->cpu.stime = curstat->cpu.stime -
prestat.cpu.stime;
if (curstat->cpu.utime > prestat.cpu.utime)
devstat->cpu.utime = curstat->cpu.utime -
prestat.cpu.utime;
if (curstat->mem.minflt > prestat.mem.minflt)
devstat->mem.minflt = curstat->mem.minflt -
prestat.mem.minflt;
if (curstat->mem.majflt > prestat.mem.majflt)
devstat->mem.majflt = curstat->mem.majflt -
prestat.mem.majflt;
if (curstat->dsk.rio > (prestat.dsk.rio + prestat.dsk.wio))
devstat->dsk.rio = curstat->dsk.rio -
prestat.dsk.rio -
prestat.dsk.wio;
/*
** try to match the network counters of netatop
*/
if (supportflags & NETATOPD)
{
unsigned long val = (hashtype == 'p' ?
curstat->gen.pid :
curstat->gen.btime);
netatop_exitfind(val, devstat, &prestat);
}
d++;
(*nprocdev)++;
if (prestat.gen.pid > 0)
pdb_deltask(prestat.gen.pid, prestat.gen.isproc);
}
/*
** remove unused entries from RESIDUE chain
*/
pdb_cleanresidue();
return d;
}
/*
** The engine() drives the main-loop of the program
*/
void
engine(void)
{
int i, j;
struct sigaction sigact;
double timed, delta;
void getusr1(int), getusr2(int);
/*
** reserve space for system-level statistics
*/
static struct sstat *cursstat; /* current */
static struct sstat *presstat; /* previous */
static struct sstat *devsstat; /* deviation */
static struct sstat *hlpsstat;
/*
** reserve space for task-level statistics
*/
static struct tstat *curtpres; /* current present list */
static int curtlen; /* size of present list */
struct tstat *curpexit; /* exited process list */
struct tstat *devtstat; /* deviation list */
struct tstat **devpstat; /* pointers to processes */
/* in deviation list */
unsigned int ntaskpres; /* number of tasks present */
unsigned int nprocexit; /* number of exited procs */
unsigned int nprocexitnet; /* number of exited procs */
/* via netatopd daemon */
unsigned int ntaskdev; /* nr of tasks deviated */
unsigned int nprocdev; /* nr of procs deviated */
int nprocpres; /* nr of procs present */
int totrun, totslpi, totslpu, totzombie;
unsigned int noverflow;
/*
** initialization: allocate required memory dynamically
*/
cursstat = sstat_alloc("current sysstats");
presstat = sstat_alloc("prev sysstats");
devsstat = sstat_alloc("deviate sysstats");
curtlen = PROCMIN * 3 / 2; /* add 50% for threads */
curtpres = calloc(curtlen, sizeof(struct tstat));
ptrverify(curtpres, "Malloc failed for %d procstats\n", curtlen);
/*
** install the signal-handler for ALARM, USR1 and USR2 (triggers
** for the next sample)
*/
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getusr1;
sigaction(SIGUSR1, &sigact, (struct sigaction *)0);
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getusr2;
sigaction(SIGUSR2, &sigact, (struct sigaction *)0);
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getalarm;
sigaction(SIGALRM, &sigact, (struct sigaction *)0);
if (interval.tv_sec || interval.tv_usec)
setalarm(&interval);
/*
** MAIN-LOOP:
** - Wait for the requested number of seconds or for other trigger
**
** - System-level counters
** get current counters
** calculate the differences with the previous sample
**
** - Process-level counters
** get current counters from running & exited processes
** calculate the differences with the previous sample
**
** - Call the print-function to visualize the differences
*/
for (sampcnt=0; sampcnt < nsamples; sampcnt++)
{
char lastcmd;
/*
** wait for alarm-signal to arrive (except first sample)
** or wait for SIGUSR1/SIGUSR2
*/
if (sampcnt > 0 && awaittrigger && !rawreadflag)
pause();
awaittrigger = 1;
/*
** take a snapshot of the current system-level statistics
*/
hlpsstat = cursstat; /* swap current/prev. stats */
cursstat = presstat;
presstat = hlpsstat;
photosyst(cursstat); /* obtain new counters */
/*
** take a snapshot of the current task-level statistics
**
** first register active tasks
** --> atop malloc's a minimal amount of space which is
** only extended when needed
*/
memset(curtpres, 0, curtlen * sizeof(struct tstat));
ntaskpres = photoproc(&curtpres, &curtlen);
/*
** register processes that exited during last sample;
** first determine how many processes exited
**
** the number of exited processes is limited to avoid
** that atop explodes in memory and introduces OOM killing
*/
nprocexit = acctprocnt(); /* number of exited processes */
if (nprocexit > MAXACCTPROCS)
{
noverflow = nprocexit - MAXACCTPROCS;
nprocexit = MAXACCTPROCS;
}
else
noverflow = 0;
/*
** determine how many processes have been exited
** for the netatop module (only processes that have
** used the network)
*/
if (nprocexit > 0 && (supportflags & NETATOPD))
nprocexitnet = netatop_exitstore();
else
nprocexitnet = 0;
/*
** reserve space for the exited processes and read them
*/
if (nprocexit > 0)
{
curpexit = malloc(nprocexit * sizeof(struct tstat));
ptrverify(curpexit,
"Malloc failed for %d exited processes\n",
nprocexit);
memset(curpexit, 0, nprocexit * sizeof(struct tstat));
nprocexit = acctphotoproc(curpexit, nprocexit);
/*
** reposition offset in accounting file when not
** all exited processes have been read (i.e. skip
** those processes)
*/
if (noverflow)
acctrepos(noverflow);
}
else
{
curpexit = NULL;
}
/*
** calculate the deviations (i.e. calculate the activity
** during the last sample). Note for PMAPI calls we had
** to delay changing curtime until after sampling due to
** the way pmSetMode(3) works.
*/
pretime = curtime; /* timestamp for previous sample */
curtime = cursstat->stamp; /* timestamp for this sample */
timed = __pmtimevalToReal(&curtime);
delta = timed - __pmtimevalToReal(&pretime);
deviatsyst(cursstat, presstat, devsstat, delta);
devtstat = malloc((ntaskpres+nprocexit) * sizeof(struct tstat));
ptrverify(devtstat, "Malloc failed for %d modified tasks\n",
ntaskpres+nprocexit);
ntaskdev = deviattask(curtpres, ntaskpres,
curpexit, nprocexit, deviatonly,
devtstat, devsstat,
&nprocdev, &nprocpres,
&totrun, &totslpi, &totslpu, &totzombie);
/*
** create list of pointers specifically to the process entries
** in the task list
*/
devpstat = malloc(sizeof (struct tstat *) * nprocdev);
ptrverify(devpstat, "Malloc failed for %d process ptrs\n",
nprocdev);
for (i=0, j=0; i < ntaskdev; i++)
{
if ( (devtstat+i)->gen.isproc)
devpstat[j++] = devtstat+i;
}
/*
** activate the installed print-function to visualize
** the deviations
*/
lastcmd = (vis.show_samp)(timed,
delta > 1.0 ? delta : 1.0,
devsstat, devtstat, devpstat,
ntaskdev, ntaskpres, nprocdev, nprocpres,
totrun, totslpi, totslpu, totzombie,
nprocexit, noverflow, sampcnt==0);
if (rawreadflag)
__pmtimevalInc(&curtime, &interval);
/*
** release dynamically allocated memory
*/
if (nprocexit > 0)
free(curpexit);
if (nprocexitnet > 0)
netatop_exiterase();
free(devtstat);
free(devpstat);
if (lastcmd == 'r') /* reset requested ? */
{
sampcnt = -1;
curtime = origin;
/* set current (will be 'previous') counters to 0 */
memset(curtpres, 0, curtlen * sizeof(struct tstat));
sstat_reset(cursstat);
/* remove all tasks in database */
pdb_makeresidue();
pdb_cleanresidue();
}
} /* end of main-loop */
}
/*
** The engine() drives the main-loop of the program
*/
static void
engine(void)
{
int i, j;
struct sigaction sigact;
static time_t timelimit;
void getusr1(int), getusr2(int);
/*
** reserve space for system-level statistics
*/
static struct sstat *cursstat; /* current */
static struct sstat *presstat; /* previous */
static struct sstat *devsstat; /* deviation */
static struct sstat *hlpsstat;
/*
** reserve space for task-level statistics
*/
static struct tstat *curpact; /* current active list */
static int curplen; /* current active size */
struct tstat *curpexit; /* exited process list */
struct tstat *devtstat; /* deviation list */
struct tstat **devpstat; /* pointers to processes*/
/* in deviation list */
unsigned int ntask, nexit, nexitnet;
unsigned int noverflow, ndeviat, nactproc;
int totproc, totrun, totslpi, totslpu, totzombie;
/*
** initialization: allocate required memory dynamically
*/
cursstat = calloc(1, sizeof(struct sstat));
presstat = calloc(1, sizeof(struct sstat));
devsstat = calloc(1, sizeof(struct sstat));
curplen = countprocs() * 3 / 2; /* add 50% for threads */
curpact = calloc(curplen, sizeof(struct tstat));
ptrverify(cursstat, "Malloc failed for current sysstats\n");
ptrverify(presstat, "Malloc failed for prev sysstats\n");
ptrverify(devsstat, "Malloc failed for deviate sysstats\n");
ptrverify(curpact, "Malloc failed for %d procstats\n", curplen);
/*
** install the signal-handler for ALARM, USR1 and USR2 (triggers
* for the next sample)
*/
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getusr1;
sigaction(SIGUSR1, &sigact, (struct sigaction *)0);
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getusr2;
sigaction(SIGUSR2, &sigact, (struct sigaction *)0);
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getalarm;
sigaction(SIGALRM, &sigact, (struct sigaction *)0);
if (interval > 0)
alarm(interval);
if (midnightflag)
{
time_t timenow = time(0);
struct tm *tp = localtime(&timenow);
tp->tm_hour = 23;
tp->tm_min = 59;
tp->tm_sec = 59;
timelimit = mktime(tp);
}
/*
** MAIN-LOOP:
** - Wait for the requested number of seconds or for other trigger
**
** - System-level counters
** get current counters
** calculate the differences with the previous sample
**
** - Process-level counters
** get current counters from running & exited processes
** calculate the differences with the previous sample
**
** - Call the print-function to visualize the differences
*/
for (sampcnt=0; sampcnt < nsamples; sampcnt++)
{
char lastcmd;
/*
** if the limit-flag is specified:
** check if the next sample is expected before midnight;
** if not, stop atop now
*/
if (midnightflag && (curtime+interval) > timelimit)
break;
/*
** wait for alarm-signal to arrive (except first sample)
** or wait for SIGUSR1/SIGUSR2
*/
if (sampcnt > 0 && awaittrigger)
pause();
awaittrigger = 1;
/*
** gather time info for this sample
*/
pretime = curtime;
curtime = time(0); /* seconds since 1-1-1970 */
/*
** take a snapshot of the current system-level statistics
** and calculate the deviations (i.e. calculate the activity
** during the last sample)
*/
hlpsstat = cursstat; /* swap current/prev. stats */
cursstat = presstat;
presstat = hlpsstat;
photosyst(cursstat); /* obtain new counters */
deviatsyst(cursstat, presstat, devsstat);
/*
** take a snapshot of the current task-level statistics
** and calculate the deviations (i.e. calculate the activity
** during the last sample)
**
** first register active tasks
** --> atop malloc's a minimal amount of space which is
** only extended when needed
*/
memset(curpact, 0, curplen * sizeof(struct tstat));
while ( (ntask = photoproc(curpact, curplen)) == curplen)
{
curplen += PROCCHUNK;
curpact = realloc(curpact,
curplen * sizeof(struct tstat));
ptrverify(curpact,
"Realloc failed for %d tasks\n", curplen);
memset(curpact, 0, curplen * sizeof(struct tstat));
}
/*
** register processes that exited during last sample;
** first determine how many processes exited
**
** the number of exited processes is limited to avoid
** that atop explodes in memory and introduces OOM killing
*/
nexit = acctprocnt(); /* number of exited processes */
if (nexit > MAXACCTPROCS)
{
noverflow = nexit - MAXACCTPROCS;
nexit = MAXACCTPROCS;
}
else
noverflow = 0;
/*
** determine how many processes have been exited
** for the netatop module (only processes that have
** used the network)
*/
if (nexit > 0 && (supportflags & NETATOPD))
nexitnet = netatop_exitstore();
else
nexitnet = 0;
/*
** reserve space for the exited processes and read them
*/
if (nexit > 0)
{
curpexit = malloc(nexit * sizeof(struct tstat));
ptrverify(curpexit,
"Malloc failed for %d exited processes\n",
nexit);
memset(curpexit, 0, nexit * sizeof(struct tstat));
acctphotoproc(curpexit, nexit);
/*
** reposition offset in accounting file when not
** all exited processes have been read (i.e. skip
** those processes)
*/
if (noverflow)
acctrepos(noverflow);
}
else
{
curpexit = NULL;
}
/*
** calculate deviations
*/
devtstat = malloc((ntask+nexit) * sizeof(struct tstat));
ptrverify(devtstat, "Malloc failed for %d modified processes\n",
ntask+nexit);
ndeviat = deviatproc(curpact, ntask, curpexit, nexit,
deviatonly, devtstat, devsstat, &nactproc,
&totproc, &totrun, &totslpi, &totslpu,
&totzombie);
/*
** create list of pointers specifically to the process entries
** in the task list
*/
devpstat = malloc(sizeof (struct tstat *) * nactproc);
ptrverify(devpstat, "Malloc failed for %d process ptrs\n",
nactproc);
for (i=0, j=0; i < ndeviat; i++)
{
if ( (devtstat+i)->gen.isproc)
devpstat[j++] = devtstat+i;
}
/*
** activate the installed print-function to visualize
** the deviations
*/
lastcmd = (vis.show_samp)( curtime,
curtime-pretime > 0 ? curtime-pretime : 1,
devsstat, devtstat, devpstat,
ndeviat, ntask, nactproc,
totproc, totrun, totslpi, totslpu,
totzombie, nexit, noverflow, sampcnt==0);
/*
** release dynamically allocated memory
*/
if (nexit > 0)
free(curpexit);
if (nexitnet > 0)
netatop_exiterase();
free(devtstat);
free(devpstat);
if (lastcmd == 'r') /* reset requested ? */
{
sampcnt = -1;
curtime = getboot() / hertz; // reset current time
/* set current (will be 'previous') counters to 0 */
memset(cursstat, 0, sizeof(struct sstat));
memset(curpact, 0, curplen * sizeof(struct tstat));
/* remove all tasks in database */
pdb_makeresidue();
pdb_cleanresidue();
}
} /* end of main-loop */
}
/*
** The engine() drives the main-loop of the program
*/
static void
engine(void)
{
struct sigaction sigact;
static time_t timelimit;
void getusr1(int), getusr2(int);
/*
** reserve space for system-level statistics
*/
static struct sstat *cursstat; /* current */
static struct sstat *presstat; /* previous */
static struct sstat *devsstat; /* deviation */
static struct sstat *hlpsstat;
/*
** reserve space for process-level statistics
*/
static struct pstat *curpact; /* current active list */
static int curplen; /* current active size */
struct pstat *curpexit; /* exitted process list */
struct pstat *devpstat; /* deviation list */
int npresent, nexit, n;
int ntrun, ntslpi, ntslpu, nzombie;
/*
** initialization: allocate required memory dynamically
*/
cursstat = calloc(1, sizeof(struct sstat));
presstat = calloc(1, sizeof(struct sstat));
devsstat = calloc(1, sizeof(struct sstat));
curplen = countprocs() + PROCCHUNK;
curpact = calloc(curplen, sizeof(struct pstat));
if (!cursstat || !presstat || !devsstat || !curpact)
{
fprintf(stderr, "unexpected calloc-failure...\n");
cleanstop(1);
}
/*
** install the signal-handler for ALARM, USR1 and USR2 (triggers
* for the next sample)
*/
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getusr1;
sigaction(SIGUSR1, &sigact, (struct sigaction *)0);
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getusr2;
sigaction(SIGUSR2, &sigact, (struct sigaction *)0);
memset(&sigact, 0, sizeof sigact);
sigact.sa_handler = getalarm;
sigaction(SIGALRM, &sigact, (struct sigaction *)0);
if (interval > 0)
alarm(interval);
if (midnightflag)
{
time_t timenow = time(0);
struct tm *tp = localtime(&timenow);
tp->tm_hour = 23;
tp->tm_min = 59;
tp->tm_sec = 59;
timelimit = mktime(tp);
}
/*
** MAIN-LOOP:
** - Wait for the requested number of seconds or for other trigger
**
** - System-level counters
** get current counters
** calculate the differences with the previous sample
**
** - Process-level counters
** get current counters from running & exited processes
** calculate the differences with the previous sample
**
** - Call the print-function to visualize the differences
*/
for (sampcnt=0; sampcnt < nsamples; sampcnt++)
{
char lastcmd;
/*
** if the limit-flag is specified:
** check if the next sample is expected before midnight;
** if not, stop atop now
*/
if (midnightflag && (curtime+interval) > timelimit)
break;
/*
** wait for alarm-signal to arrive (except first sample)
** or wait for SIGUSR1/SIGUSR2
*/
if (sampcnt > 0 && awaittrigger)
pause();
awaittrigger = 1;
/*
** gather time info for this sample
*/
pretime = curtime;
curtime = time(0); /* seconds since 1-1-1970 */
/*
** take a snapshot of the current system-level statistics
** and calculate the deviations (i.e. calculate the activity
** during the last sample)
*/
hlpsstat = cursstat; /* swap current/prev. stats */
cursstat = presstat;
presstat = hlpsstat;
photosyst(cursstat); /* obtain new counters */
deviatsyst(cursstat, presstat, devsstat);
/*
** take a snapshot of the current process-level statistics
** and calculate the deviations (i.e. calculate the activity
** during the last sample)
**
** first register active processes
** --> atop malloc's a minimal amount of space which is
** only extended when needed
*/
memset(curpact, 0, curplen * sizeof(struct pstat));
while ( (npresent = photoproc(curpact, curplen)) == curplen)
{
curplen = countprocs() + PROCCHUNK;
curpact = realloc(curpact,
curplen * sizeof(struct pstat));
memset(curpact, 0, curplen * sizeof(struct pstat));
}
/*
** register processes which exited during last sample;
** first determine how many processes exited and
** reserve space for them, and secondly obtain the info
*/
nexit = acctprocnt(); /* number of exited processes */
if (nexit > 0)
{
curpexit = malloc( nexit * sizeof(struct pstat));
memset(curpexit, 0, nexit * sizeof(struct pstat));
acctphotoproc(curpexit, nexit);
}
else
curpexit = NULL;
/*
** calculate deviations
*/
devpstat = malloc((npresent+nexit) * sizeof(struct pstat));
n = deviatproc(curpact, npresent, curpexit, nexit,
deviatonly, devpstat, devsstat,
&ntrun, &ntslpi, &ntslpu, &nzombie);
/*
** activate the installed print-function to visualize
** the deviations
*/
lastcmd = (vis.show_samp)( curtime,
curtime-pretime > 0 ? curtime-pretime : 1,
devsstat, devpstat, n, npresent,
ntrun, ntslpi, ntslpu, nzombie,
nexit, sampcnt==0);
/*
** release dynamically allocated memory
*/
if (nexit > 0)
free(curpexit);
free(devpstat);
if (lastcmd == 'r') /* reset requested ? */
{
sampcnt = -1;
curtime = getboot(); /* reset current time */
/* set current (will be 'previous') counters to 0 */
memset(cursstat, 0, sizeof(struct sstat));
memset(curpact, 0, curplen * sizeof(struct pstat));
/* remove all processes in process database */
pdb_makeresidue();
pdb_cleanresidue();
}
} /* end of main-loop */
}
