1 |
|
/* |
2 |
< |
* i-scream central monitoring system |
2 |
> |
* i-scream libstatgrab |
3 |
|
* http://www.i-scream.org |
4 |
|
* Copyright (C) 2000-2004 i-scream |
5 |
|
* |
65 |
|
#include <limits.h> |
66 |
|
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
67 |
|
#include <kvm.h> |
68 |
– |
#include <tools.h> |
68 |
|
#endif |
69 |
|
#include <unistd.h> |
70 |
+ |
#ifdef NETBSD2 |
71 |
+ |
#include <sys/lwp.h> |
72 |
|
#endif |
73 |
+ |
#endif |
74 |
|
|
75 |
|
static void proc_state_init(sg_process_stats *s) { |
76 |
|
s->process_name = NULL; |
84 |
|
|
85 |
|
sg_process_stats *sg_get_process_stats(int *entries){ |
86 |
|
VECTOR_DECLARE_STATIC(proc_state, sg_process_stats, 64, |
87 |
< |
proc_state_init, proc_state_destroy); |
87 |
> |
proc_state_init, proc_state_destroy); |
88 |
|
int proc_state_size = 0; |
89 |
|
sg_process_stats *proc_state_ptr; |
90 |
|
#ifdef ALLBSD |
101 |
|
long buflen; |
102 |
|
char *p; |
103 |
|
#endif |
104 |
+ |
#ifdef NETBSD2 |
105 |
+ |
int lwps; |
106 |
+ |
struct kinfo_lwp *kl_stats; |
107 |
|
#endif |
108 |
+ |
#endif |
109 |
|
#if defined(SOLARIS) || defined(LINUX) |
110 |
< |
DIR *proc_dir; |
111 |
< |
struct dirent *dir_entry; |
112 |
< |
char filename[MAX_FILE_LENGTH]; |
113 |
< |
FILE *f; |
110 |
> |
DIR *proc_dir; |
111 |
> |
struct dirent *dir_entry; |
112 |
> |
char filename[MAX_FILE_LENGTH]; |
113 |
> |
FILE *f; |
114 |
|
#ifdef SOLARIS |
115 |
|
psinfo_t process_info; |
116 |
|
#endif |
120 |
|
char ps_name[4096]; |
121 |
|
char *ptr; |
122 |
|
VECTOR_DECLARE_STATIC(psargs, char, 128, NULL, NULL); |
123 |
< |
unsigned long stime, utime; |
123 |
> |
unsigned long stime, utime, starttime; |
124 |
|
int x; |
125 |
|
int fn; |
126 |
|
int len; |
127 |
|
int rc; |
128 |
+ |
time_t uptime; |
129 |
|
#endif |
130 |
|
|
131 |
< |
if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
132 |
< |
return NULL; |
133 |
< |
} |
131 |
> |
#ifdef LINUX |
132 |
> |
if ((f=fopen("/proc/uptime", "r")) == NULL) { |
133 |
> |
sg_set_error(SG_ERROR_OPEN, "/proc/uptime"); |
134 |
> |
return NULL; |
135 |
> |
} |
136 |
> |
if((fscanf(f,"%lu %*d",&uptime)) != 1){ |
137 |
> |
sg_set_error(SG_ERROR_PARSE, NULL); |
138 |
> |
return NULL; |
139 |
> |
} |
140 |
> |
fclose(f); |
141 |
> |
#endif |
142 |
|
|
143 |
< |
while((dir_entry=readdir(proc_dir))!=NULL){ |
144 |
< |
if(atoi(dir_entry->d_name) == 0) continue; |
143 |
> |
if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
144 |
> |
sg_set_error(SG_ERROR_OPENDIR, PROC_LOCATION); |
145 |
> |
return NULL; |
146 |
> |
} |
147 |
|
|
148 |
+ |
while((dir_entry=readdir(proc_dir))!=NULL){ |
149 |
+ |
if(atoi(dir_entry->d_name) == 0) continue; |
150 |
+ |
|
151 |
|
#ifdef SOLARIS |
152 |
< |
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name); |
152 |
> |
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name); |
153 |
|
#endif |
154 |
|
#ifdef LINUX |
155 |
|
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name); |
156 |
|
#endif |
157 |
< |
if((f=fopen(filename, "r"))==NULL){ |
158 |
< |
/* Open failed.. Process since vanished, or the path was too long. |
159 |
< |
* Ah well, move onwards to the next one */ |
160 |
< |
continue; |
161 |
< |
} |
157 |
> |
if((f=fopen(filename, "r"))==NULL){ |
158 |
> |
/* Open failed.. Process since vanished, or the path was too long. |
159 |
> |
* Ah well, move onwards to the next one */ |
160 |
> |
continue; |
161 |
> |
} |
162 |
|
#ifdef SOLARIS |
163 |
< |
fread(&process_info, sizeof(psinfo_t), 1, f); |
163 |
> |
fread(&process_info, sizeof(psinfo_t), 1, f); |
164 |
> |
fclose(f); |
165 |
|
#endif |
166 |
|
|
167 |
|
if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) { |
181 |
|
proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024; |
182 |
|
proc_state_ptr->time_spent = process_info.pr_time.tv_sec; |
183 |
|
proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000; |
184 |
< |
proc_state_ptr->process_name = strdup(process_info.pr_fname); |
185 |
< |
proc_state_ptr->proctitle = strdup(process_info.pr_psargs); |
184 |
> |
proc_state_ptr->nice = (int)process_info.pr_lwp.pr_nice - 20; |
185 |
> |
if (sg_update_string(&proc_state_ptr->process_name, |
186 |
> |
process_info.pr_fname) < 0) { |
187 |
> |
return NULL; |
188 |
> |
} |
189 |
> |
if (sg_update_string(&proc_state_ptr->proctitle, |
190 |
> |
process_info.pr_psargs) < 0) { |
191 |
> |
return NULL; |
192 |
> |
} |
193 |
|
|
194 |
< |
if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING; |
195 |
< |
if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
196 |
< |
if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE; |
197 |
< |
if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED; |
198 |
< |
if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
194 |
> |
if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING; |
195 |
> |
if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
196 |
> |
if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE; |
197 |
> |
if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = SG_PROCESS_STATE_STOPPED; |
198 |
> |
if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
199 |
|
#endif |
200 |
|
#ifdef LINUX |
201 |
< |
x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*u %*u %*u %*u %*u %lu %lu %*d %*d %*d %d %*d %*d %*u %llu %llu %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*d %*d\n", &(proc_state_ptr->pid), ps_name, &s, &(proc_state_ptr->parent), &(proc_state_ptr->pgid), &utime, &stime, &(proc_state_ptr->nice), &(proc_state_ptr->proc_size), &(proc_state_ptr->proc_resident)); |
202 |
< |
proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize(); |
201 |
> |
x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*u %*u %*u %*u %*u %lu %lu %*d %*d %*d %d %*d %*d %lu %llu %llu %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*d %*d\n", &(proc_state_ptr->pid), ps_name, &s, &(proc_state_ptr->parent), &(proc_state_ptr->pgid), &utime, &stime, &(proc_state_ptr->nice), &starttime, &(proc_state_ptr->proc_size), &(proc_state_ptr->proc_resident)); |
202 |
> |
/* +3 becuase man page says "Resident Set Size: number of pages the process has in real memory, minus 3 for administrative purposes." */ |
203 |
> |
proc_state_ptr->proc_resident = (proc_state_ptr->proc_resident + 3) * getpagesize(); |
204 |
|
if(s == 'S') proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING; |
205 |
|
if(s == 'R') proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
206 |
|
if(s == 'Z') proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE; |
212 |
|
if(ptr !=NULL) *ptr='\0'; |
213 |
|
|
214 |
|
if (sg_update_string(&proc_state_ptr->process_name, |
215 |
< |
&ps_name[1]) < 0) { |
215 |
> |
&ps_name[1]) < 0) { |
216 |
|
return NULL; |
217 |
|
} |
218 |
|
|
219 |
< |
/* Need to do cpu */ |
220 |
< |
|
219 |
> |
/* cpu */ |
220 |
> |
proc_state_ptr->cpu_percent = (100.0 * (utime + stime)) / ((uptime * 100.0) - starttime); |
221 |
|
|
222 |
< |
fclose(f); |
222 |
> |
fclose(f); |
223 |
|
|
224 |
+ |
/* uid / gid */ |
225 |
+ |
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name); |
226 |
+ |
if ((f=fopen(filename, "r")) == NULL) { |
227 |
+ |
/* Open failed.. Process since vanished, or the path was too long. |
228 |
+ |
* Ah well, move onwards to the next one */ |
229 |
+ |
continue; |
230 |
+ |
} |
231 |
+ |
|
232 |
+ |
if((ptr=sg_f_read_line(f, "Uid:"))==NULL){ |
233 |
+ |
fclose(f); |
234 |
+ |
continue; |
235 |
+ |
} |
236 |
+ |
sscanf(ptr, "Uid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->uid), &(proc_state_ptr->euid)); |
237 |
+ |
|
238 |
+ |
if((ptr=sg_f_read_line(f, "Gid:"))==NULL){ |
239 |
+ |
fclose(f); |
240 |
+ |
continue; |
241 |
+ |
} |
242 |
+ |
sscanf(ptr, "Gid:\t%d\t%d\t%*d\t%*d\n", &(proc_state_ptr->gid), &(proc_state_ptr->egid)); |
243 |
+ |
|
244 |
+ |
fclose(f); |
245 |
+ |
|
246 |
|
/* proctitle */ |
247 |
|
snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name); |
248 |
|
|
249 |
< |
if((fn=open(filename, O_RDONLY)) == -1){ |
250 |
< |
/* Open failed.. Process since vanished, or the path was too long. |
251 |
< |
* Ah well, move onwards to the next one */ |
252 |
< |
continue; |
253 |
< |
} |
249 |
> |
if((fn=open(filename, O_RDONLY)) == -1){ |
250 |
> |
/* Open failed.. Process since vanished, or the path was too long. |
251 |
> |
* Ah well, move onwards to the next one */ |
252 |
> |
continue; |
253 |
> |
} |
254 |
|
|
255 |
|
#define READ_BLOCK_SIZE 128 |
256 |
|
len = 0; |
296 |
|
#endif |
297 |
|
|
298 |
|
proc_state_size++; |
299 |
< |
} |
300 |
< |
closedir(proc_dir); |
299 |
> |
} |
300 |
> |
closedir(proc_dir); |
301 |
|
#endif |
302 |
|
|
303 |
|
#ifdef ALLBSD |
306 |
|
mib[2] = KERN_PROC_ALL; |
307 |
|
|
308 |
|
if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
309 |
+ |
sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL"); |
310 |
|
return NULL; |
311 |
|
} |
312 |
|
|
313 |
|
procs = size / sizeof(struct kinfo_proc); |
314 |
|
|
315 |
< |
kp_stats = malloc(size); |
315 |
> |
kp_stats = sg_malloc(size); |
316 |
|
if(kp_stats == NULL) { |
317 |
|
return NULL; |
318 |
|
} |
319 |
+ |
memset(kp_stats, 0, size); |
320 |
|
|
321 |
|
if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) { |
322 |
+ |
sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_PROC.KERN_PROC_ALL"); |
323 |
|
free(kp_stats); |
324 |
|
return NULL; |
325 |
|
} |
331 |
|
for (i = 0; i < procs; i++) { |
332 |
|
const char *name; |
333 |
|
|
334 |
+ |
#ifdef FREEBSD5 |
335 |
+ |
if (kp_stats[i].ki_stat == 0) { |
336 |
+ |
#else |
337 |
+ |
if (kp_stats[i].kp_proc.p_stat == 0) { |
338 |
+ |
#endif |
339 |
+ |
/* FreeBSD 5 deliberately overallocates the array that |
340 |
+ |
* the sysctl returns, so we'll get a few junk |
341 |
+ |
* processes on the end that we have to ignore. (Search |
342 |
+ |
* for "overestimate by 5 procs" in |
343 |
+ |
* src/sys/kern/kern_proc.c for more details.) */ |
344 |
+ |
continue; |
345 |
+ |
} |
346 |
+ |
|
347 |
|
if (VECTOR_RESIZE(proc_state, proc_state_size + 1) < 0) { |
348 |
|
return NULL; |
349 |
|
} |
365 |
|
|
366 |
|
#ifdef FREEBSD5 |
367 |
|
if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) { |
368 |
+ |
sg_set_error(SG_ERROR_SYSCTLBYNAME, "kern.ps_arg_cache_limit"); |
369 |
|
return NULL; |
370 |
|
} |
371 |
|
#else |
372 |
+ |
/* FIXME - this value can be too large on some of |
373 |
+ |
the BSD's, which causes sysctl not to return |
374 |
+ |
anything. Maybe we need something smaller? */ |
375 |
|
mib[1] = KERN_ARGMAX; |
376 |
|
|
377 |
|
if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) { |
378 |
+ |
sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_ARGMAX"); |
379 |
|
return NULL; |
380 |
|
} |
381 |
|
#endif |
382 |
|
|
383 |
< |
proctitle = malloc(buflen); |
383 |
> |
proctitle = sg_malloc(buflen); |
384 |
|
if(proctitle == NULL) { |
385 |
|
return NULL; |
386 |
|
} |
402 |
|
proc_state_ptr->proctitle = NULL; |
403 |
|
} |
404 |
|
else if(size > 0) { |
405 |
< |
proc_state_ptr->proctitle = malloc(size+1); |
405 |
> |
proc_state_ptr->proctitle = sg_malloc(size+1); |
406 |
|
if(proc_state_ptr->proctitle == NULL) { |
407 |
|
return NULL; |
408 |
|
} |
431 |
|
argslen += strlen(*argsp) + 1; |
432 |
|
argsp++; |
433 |
|
} |
434 |
< |
proctitle = malloc(argslen + 1); |
434 |
> |
proctitle = sg_malloc(argslen + 1); |
435 |
|
proctitle[0] = '\0'; |
436 |
|
if(proctitle == NULL) { |
437 |
|
return NULL; |
515 |
|
proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice; |
516 |
|
#endif |
517 |
|
|
518 |
+ |
#ifdef NETBSD2 |
519 |
+ |
{ |
520 |
+ |
size_t size; |
521 |
+ |
int mib[5]; |
522 |
+ |
|
523 |
+ |
mib[0] = CTL_KERN; |
524 |
+ |
mib[1] = KERN_LWP; |
525 |
+ |
mib[2] = kp_stats[i].kp_proc.p_pid; |
526 |
+ |
mib[3] = sizeof(struct kinfo_lwp); |
527 |
+ |
mib[4] = 0; |
528 |
+ |
|
529 |
+ |
if(sysctl(mib, 5, NULL, &size, NULL, 0) < 0) { |
530 |
+ |
sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.0"); |
531 |
+ |
return NULL; |
532 |
+ |
} |
533 |
+ |
|
534 |
+ |
lwps = size / sizeof(struct kinfo_lwp); |
535 |
+ |
mib[4] = lwps; |
536 |
+ |
|
537 |
+ |
kl_stats = sg_malloc(size); |
538 |
+ |
if(kl_stats == NULL) { |
539 |
+ |
return NULL; |
540 |
+ |
} |
541 |
+ |
|
542 |
+ |
if(sysctl(mib, 5, kl_stats, &size, NULL, 0) < 0) { |
543 |
+ |
sg_set_error(SG_ERROR_SYSCTL, "CTL_KERN.KERN_LWP.pid.structsize.buffersize"); |
544 |
+ |
return NULL; |
545 |
+ |
} |
546 |
+ |
} |
547 |
+ |
|
548 |
+ |
switch(kp_stats[i].kp_proc.p_stat) { |
549 |
+ |
case SIDL: |
550 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
551 |
+ |
break; |
552 |
+ |
case SACTIVE: |
553 |
+ |
{ |
554 |
+ |
int i; |
555 |
+ |
|
556 |
+ |
for(i = 0; i < lwps; i++) { |
557 |
+ |
switch(kl_stats[i].l_stat) { |
558 |
+ |
case LSONPROC: |
559 |
+ |
case LSRUN: |
560 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_RUNNING; |
561 |
+ |
goto end; |
562 |
+ |
case LSSLEEP: |
563 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_SLEEPING; |
564 |
+ |
goto end; |
565 |
+ |
case LSSTOP: |
566 |
+ |
case LSSUSPENDED: |
567 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_STOPPED; |
568 |
+ |
goto end; |
569 |
+ |
} |
570 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN; |
571 |
+ |
} |
572 |
+ |
end: ; |
573 |
+ |
} |
574 |
+ |
break; |
575 |
+ |
case SSTOP: |
576 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_STOPPED; |
577 |
+ |
break; |
578 |
+ |
case SZOMB: |
579 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_ZOMBIE; |
580 |
+ |
break; |
581 |
+ |
default: |
582 |
+ |
proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN; |
583 |
+ |
break; |
584 |
+ |
} |
585 |
+ |
#else |
586 |
|
#ifdef FREEBSD5 |
587 |
|
switch (kp_stats[i].ki_stat) { |
588 |
|
#else |
617 |
|
proc_state_ptr->state = SG_PROCESS_STATE_UNKNOWN; |
618 |
|
break; |
619 |
|
} |
620 |
+ |
#endif |
621 |
|
proc_state_size++; |
622 |
|
} |
623 |
|
|
625 |
|
#endif |
626 |
|
|
627 |
|
#ifdef CYGWIN |
628 |
+ |
sg_set_error(SG_ERROR_UNSUPPORTED, "Cygwin"); |
629 |
|
return NULL; |
630 |
|
#endif |
631 |
|
|
674 |
|
process_stat.total = ps_size; |
675 |
|
|
676 |
|
return &process_stat; |
677 |
+ |
} |
678 |
+ |
|
679 |
+ |
int sg_process_compare_pid(const void *va, const void *vb) { |
680 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
681 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
682 |
+ |
|
683 |
+ |
if (a->pid < b->pid) { |
684 |
+ |
return -1; |
685 |
+ |
} else if (a->pid == b->pid) { |
686 |
+ |
return 0; |
687 |
+ |
} else { |
688 |
+ |
return 1; |
689 |
+ |
} |
690 |
+ |
} |
691 |
+ |
|
692 |
+ |
int sg_process_compare_uid(const void *va, const void *vb) { |
693 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
694 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
695 |
+ |
|
696 |
+ |
if (a->uid < b->uid) { |
697 |
+ |
return -1; |
698 |
+ |
} else if (a->uid == b->uid) { |
699 |
+ |
return 0; |
700 |
+ |
} else { |
701 |
+ |
return 1; |
702 |
+ |
} |
703 |
+ |
} |
704 |
+ |
|
705 |
+ |
int sg_process_compare_gid(const void *va, const void *vb) { |
706 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
707 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
708 |
+ |
|
709 |
+ |
if (a->gid < b->gid) { |
710 |
+ |
return -1; |
711 |
+ |
} else if (a->gid == b->gid) { |
712 |
+ |
return 0; |
713 |
+ |
} else { |
714 |
+ |
return 1; |
715 |
+ |
} |
716 |
+ |
} |
717 |
+ |
|
718 |
+ |
int sg_process_compare_size(const void *va, const void *vb) { |
719 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
720 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
721 |
+ |
|
722 |
+ |
if (a->proc_size < b->proc_size) { |
723 |
+ |
return -1; |
724 |
+ |
} else if (a->proc_size == b->proc_size) { |
725 |
+ |
return 0; |
726 |
+ |
} else { |
727 |
+ |
return 1; |
728 |
+ |
} |
729 |
+ |
} |
730 |
+ |
|
731 |
+ |
int sg_process_compare_res(const void *va, const void *vb) { |
732 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
733 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
734 |
+ |
|
735 |
+ |
if (a->proc_resident < b->proc_resident) { |
736 |
+ |
return -1; |
737 |
+ |
} else if (a->proc_resident == b->proc_resident) { |
738 |
+ |
return 0; |
739 |
+ |
} else { |
740 |
+ |
return 1; |
741 |
+ |
} |
742 |
+ |
} |
743 |
+ |
|
744 |
+ |
int sg_process_compare_cpu(const void *va, const void *vb) { |
745 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
746 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
747 |
+ |
|
748 |
+ |
if (a->cpu_percent < b->cpu_percent) { |
749 |
+ |
return -1; |
750 |
+ |
} else if (a->cpu_percent == b->cpu_percent) { |
751 |
+ |
return 0; |
752 |
+ |
} else { |
753 |
+ |
return 1; |
754 |
+ |
} |
755 |
+ |
} |
756 |
+ |
|
757 |
+ |
int sg_process_compare_time(const void *va, const void *vb) { |
758 |
+ |
const sg_process_stats *a = (sg_process_stats *)va; |
759 |
+ |
const sg_process_stats *b = (sg_process_stats *)vb; |
760 |
+ |
|
761 |
+ |
if (a->time_spent < b->time_spent) { |
762 |
+ |
return -1; |
763 |
+ |
} else if (a->time_spent == b->time_spent) { |
764 |
+ |
return 0; |
765 |
+ |
} else { |
766 |
+ |
return 1; |
767 |
+ |
} |
768 |
+ |
} |
769 |
+ |
|
770 |
+ |
void sg_process_sort(sg_process_stats *ps, int num_ps, sg_sort_method sm){ |
771 |
+ |
int (*sortby_ptr)(const void *a, const void *b); |
772 |
+ |
|
773 |
+ |
switch(sm){ |
774 |
+ |
case SG_PS_PID: |
775 |
+ |
sortby_ptr = sg_process_compare_pid; |
776 |
+ |
break; |
777 |
+ |
case SG_PS_UID: |
778 |
+ |
sortby_ptr = sg_process_compare_uid; |
779 |
+ |
break; |
780 |
+ |
case SG_PS_GID: |
781 |
+ |
sortby_ptr = sg_process_compare_gid; |
782 |
+ |
break; |
783 |
+ |
case SG_PS_SIZE: |
784 |
+ |
sortby_ptr = sg_process_compare_size; |
785 |
+ |
break; |
786 |
+ |
case SG_PS_RES: |
787 |
+ |
sortby_ptr = sg_process_compare_res; |
788 |
+ |
break; |
789 |
+ |
case SG_PS_CPU: |
790 |
+ |
sortby_ptr = sg_process_compare_cpu; |
791 |
+ |
break; |
792 |
+ |
case SG_PS_TIME: |
793 |
+ |
sortby_ptr = sg_process_compare_time; |
794 |
+ |
break; |
795 |
+ |
} |
796 |
+ |
|
797 |
+ |
qsort(ps, num_ps, sizeof(*ps), sortby_ptr); |
798 |
+ |
|
799 |
+ |
return; |
800 |
|
} |