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root/i-scream/projects/libstatgrab/src/libstatgrab/process_stats.c

Comparing projects/libstatgrab/src/libstatgrab/process_stats.c (file contents):
Revision 1.22 by tdb, Mon Feb 16 14:55:32 2004 UTC vs.
Revision 1.45 by tdb, Sun Apr 4 23:35:45 2004 UTC

#	Line 34 | Line 34
34		#include <string.h>
35		#endif
36
37	–	#include "tools.h"
37		#ifdef SOLARIS
38		#include <procfs.h>
39		#include <limits.h>
#	Line 43 | Line 42
42		#endif
43		#ifdef LINUX
44		#include <limits.h>
45	+	#include <unistd.h>
46	+	#include <sys/stat.h>
47	+	#include <fcntl.h>
48		#define PROC_LOCATION "/proc"
49		#define MAX_FILE_LENGTH PATH_MAX
50		#endif
#	Line 55 | Line 57
57		#else
58		#include <sys/proc.h>
59		#endif
60	+	#include <string.h>
61	+	#include <paths.h>
62	+	#include <fcntl.h>
63	+	#include <limits.h>
64	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
65	+	#include <kvm.h>
66	+	#include <tools.h>
67		#endif
68	+	#include <unistd.h>
69	+	#endif
70
71	<	process_stat_t *get_process_stats(){
72	<
73	<	static process_stat_t process_stat;
74	<
75	<	#if defined(SOLARIS) || defined(LINUX)
76	<	DIR *proc_dir;
77	<	struct dirent *dir_entry;
78	<	char filename[MAX_FILE_LENGTH];
79	<	FILE *f;
71	>	int get_proc_snapshot(proc_state_t **ps){
72	>	proc_state_t *proc_state = NULL;
73	>	proc_state_t *proc_state_ptr;
74	>	int proc_state_size = 0;
75	>	#ifdef ALLBSD
76	>	int mib[4];
77	>	size_t size;
78	>	struct kinfo_proc *kp_stats;
79	>	int procs, i;
80	>	char *proctitle;
81	>	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
82	>	kvm_t *kvmd;
83	>	char **args;
84	>	int alloc;
85	>	char *proctitletmp;
86	>	#else
87	>	long buflen;
88	>	char *p;
89		#endif
70	–	#ifdef LINUX
71	–	char *line_ptr;
90		#endif
91	+	#if defined(SOLARIS) || defined(LINUX)
92	+	DIR *proc_dir;
93	+	struct dirent *dir_entry;
94	+	char filename[MAX_FILE_LENGTH];
95	+	FILE *f;
96		#ifdef SOLARIS
97		psinfo_t process_info;
98		#endif
99	<	#ifdef ALLBSD
100	<	int mib[3];
101	<	size_t size;
102	<	struct kinfo_proc *kp_stats;
103	<	int procs, i;
99	>	#ifdef LINUX
100	>	char s;
101	>	/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
102	>	char ps_name[4096];
103	>	char *ptr;
104	>	static char *psargs = NULL;
105	>	static int psarg_size = 0;
106	>	unsigned long stime, utime;
107	>	int x;
108	>	int fn;
109	>	int toread;
110	>	ssize_t size;
111	>	int t_read;
112		#endif
113
114	<	process_stat.sleeping=0;
115	<	process_stat.running=0;
116	<	process_stat.zombie=0;
86	<	process_stat.stopped=0;
87	<	process_stat.total=0;
114	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
115	>	return -1;
116	>	}
117
118	<	#if defined(SOLARIS) || defined(LINUX)
119	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
91	<	return NULL;
92	<	}
118	>	while((dir_entry=readdir(proc_dir))!=NULL){
119	>	if(atoi(dir_entry->d_name) == 0) continue;
120
94	–	while((dir_entry=readdir(proc_dir))!=NULL){
95	–	if(atoi(dir_entry->d_name) == 0) continue;
96	–
121		#ifdef SOLARIS
122	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
122	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
123		#endif
124		#ifdef LINUX
125	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
125	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
126		#endif
127	+	if((f=fopen(filename, "r"))==NULL){
128	+	/* Open failed.. Process since vanished, or the path was too long.
129	+	* Ah well, move onwards to the next one */
130	+	continue;
131	+	}
132	+	#ifdef SOLARIS
133	+	fread(&process_info, sizeof(psinfo_t), 1, f);
134	+	#endif
135
136	<	if((f=fopen(filename, "r"))==NULL){
137	<	/* Open failed.. Process since vanished, or the path was too long.
138	<	* Ah well, move onwards to the next one */
139	<	continue;
140	<	}
136	>	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
137	>	proc_state_ptr = proc_state+proc_state_size;
138	>	#ifdef SOLARIS
139	>	proc_state_ptr->pid = process_info.pr_pid;
140	>	proc_state_ptr->parent = process_info.pr_ppid;
141	>	proc_state_ptr->pgid = process_info.pr_pgid;
142	>	proc_state_ptr->uid = process_info.pr_uid;
143	>	proc_state_ptr->euid = process_info.pr_euid;
144	>	proc_state_ptr->gid = process_info.pr_gid;
145	>	proc_state_ptr->egid = process_info.pr_egid;
146	>	proc_state_ptr->proc_size = (process_info.pr_size) * 1024;
147	>	proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024;
148	>	proc_state_ptr->time_spent = process_info.pr_time.tv_sec;
149	>	proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000;
150	>	proc_state_ptr->process_name = strdup(process_info.pr_fname);
151	>	proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
152
153	<	#ifdef SOLARIS
154	<	fread(&process_info, sizeof(psinfo_t), 1, f);
155	<	if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++;
156	<	if(process_info.pr_lwp.pr_state==2) process_stat.running++;
157	<	if(process_info.pr_lwp.pr_state==3) process_stat.zombie++;
115	<	if(process_info.pr_lwp.pr_state==4) process_stat.stopped++;
116	<	if(process_info.pr_lwp.pr_state==6) process_stat.running++;
153	>	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING;
154	>	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING;
155	>	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE;
156	>	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED;
157	>	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING;
158		#endif
159		#ifdef LINUX
160	<	if((line_ptr=f_read_line(f, "State:"))==NULL){
161	<	fclose(f);
162	<	continue;
160	>	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));
161	>	proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize();
162	>	if(s == 'S') proc_state_ptr->state = SLEEPING;
163	>	if(s == 'R') proc_state_ptr->state = RUNNING;
164	>	if(s == 'Z') proc_state_ptr->state = ZOMBIE;
165	>	if(s == 'T') proc_state_ptr->state = STOPPED;
166	>	if(s == 'D') proc_state_ptr->state = STOPPED;
167	>
168	>	/* pa_name[0] should = '(' */
169	>	ptr = strchr(&ps_name[1], ')');
170	>	if(ptr !=NULL) *ptr='\0';
171	>	proc_state_ptr->process_name = strdup(&ps_name[1]);
172	>
173	>	/* Need to do cpu */
174	>
175	>
176	>	/* proctitle */
177	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
178	>
179	>	if((fn=open(filename, O_RDONLY)) == -1){
180	>	/* Open failed.. Process since vanished, or the path was too long.
181	>	* Ah well, move onwards to the next one */
182	>	continue;
183	>	}
184	>	#define         PSARG_START_SIZE 128
185	>	if(psargs == NULL){
186	>	psargs = malloc(PSARG_START_SIZE);
187	>	psarg_size = PSARG_START_SIZE;
188		}
189	<	if((line_ptr=strchr(line_ptr, '\t'))==NULL){
190	<	fclose(f);
191	<	continue;
189	>	ptr = psargs;
190	>	t_read = 0;
191	>	toread = psarg_size;
192	>	while((size = read(fn, ptr, toread)) == toread){
193	>	psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE));
194	>	ptr = psargs+psarg_size;
195	>	t_read = psarg_size;
196	>	psarg_size+=PSARG_START_SIZE;
197	>	toread = PSARG_START_SIZE;
198		}
199	<	line_ptr++;
200	<	if(line_ptr=='\0'){
201	<	fclose(f);
202	<	continue;
199	>	if(size != -1) t_read+=size;
200	>
201	>	ptr = psargs;
202	>	for(x=0; x<t_read; x++){
203	>	if (*ptr == '\0') *ptr = ' ';
204	>	ptr++;
205		}
206	+	/*  for safety sake */
207	+	psargs[t_read] = '\0';
208
209	<	if(*line_ptr=='S') process_stat.sleeping++;
134	<	if(*line_ptr=='R') process_stat.running++;
135	<	if(*line_ptr=='Z') process_stat.zombie++;
136	<	if(*line_ptr=='T') process_stat.stopped++;
137	<	if(*line_ptr=='D') process_stat.stopped++;
138	<	#endif
209	>	proc_state_ptr->proctitle = strdup(psargs);
210
140	–	fclose(f);
141	–	}
142	–	closedir(proc_dir);
211		#endif
212	+
213	+	proc_state_size++;
214	+
215	+	fclose(f);
216	+	}
217	+	closedir(proc_dir);
218	+	#endif
219	+
220		#ifdef ALLBSD
221		mib[0] = CTL_KERN;
222		mib[1] = KERN_PROC;
223		mib[2] = KERN_PROC_ALL;
224
225	<	if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
225	>	if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
226		return NULL;
227		}
228	<
228	>
229		procs = size / sizeof(struct kinfo_proc);
230
231		kp_stats = malloc(size);
232	<	if (kp_stats == NULL) {
232	>	if(kp_stats == NULL) {
233		return NULL;
234		}
235	<
236	<	if (sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
235	>
236	>	if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
237		free(kp_stats);
238		return NULL;
239		}
240
241	+	#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD)
242	+	kvmd = get_kvm2();
243	+	#endif
244	+
245		for (i = 0; i < procs; i++) {
246	+	/* replace with something more sensible */
247	+	proc_state = realloc(proc_state,
248	+	(1+proc_state_size)*sizeof(proc_state_t));
249	+	if(proc_state == NULL ) {
250	+	return NULL;
251	+	}
252	+	proc_state_ptr = proc_state+proc_state_size;
253	+
254		#ifdef FREEBSD5
255	+	proc_state_ptr->process_name =
256	+	strdup(kp_stats[i].ki_comm);
257	+	#elif defined(DFBSD)
258	+	proc_state_ptr->process_name =
259	+	strdup(kp_stats[i].kp_thread.td_comm);
260	+	#else
261	+	proc_state_ptr->process_name =
262	+	strdup(kp_stats[i].kp_proc.p_comm);
263	+	#endif
264	+
265	+	#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD)
266	+	size = sizeof(buflen);
267	+
268	+	#ifdef FREEBSD5
269	+	if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) {
270	+	return NULL;
271	+	}
272	+	#else
273	+	mib[1] = KERN_ARGMAX;
274	+
275	+	if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) {
276	+	return NULL;
277	+	}
278	+	#endif
279	+
280	+	proctitle = malloc(buflen);
281	+	if(proctitle == NULL) {
282	+	return NULL;
283	+	}
284	+
285	+	size = buflen;
286	+
287	+	#ifdef FREEBSD5
288	+	mib[2] = KERN_PROC_ARGS;
289	+	mib[3] = kp_stats[i].ki_pid;
290	+	#else
291	+	mib[1] = KERN_PROC_ARGS;
292	+	mib[2] = kp_stats[i].kp_proc.p_pid;
293	+	mib[3] = KERN_PROC_ARGV;
294	+	#endif
295	+
296	+	if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) {
297	+	free(proctitle);
298	+	proc_state_ptr->proctitle = NULL;
299	+	}
300	+	else if(size > 0) {
301	+	proc_state_ptr->proctitle = malloc(size+1);
302	+	if(proc_state_ptr->proctitle == NULL) {
303	+	return NULL;
304	+	}
305	+	p = proctitle;
306	+	proc_state_ptr->proctitle[0] = NULL;
307	+	do {
308	+	strlcat(proc_state_ptr->proctitle, p, size+1);
309	+	strlcat(proc_state_ptr->proctitle, " ", size+1);
310	+	p += strlen(p) + 1;
311	+	} while (p < proctitle + size);
312	+	free(proctitle);
313	+	/* remove trailing space */
314	+	proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = '\0';
315	+	}
316	+	else {
317	+	free(proctitle);
318	+	proc_state_ptr->proctitle = NULL;
319	+	}
320	+	#else
321	+	if(kvmd != NULL) {
322	+	args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
323	+	if(args != NULL) {
324	+	alloc = 1;
325	+	proctitle = malloc(alloc);
326	+	if(proctitle == NULL) {
327	+	return NULL;
328	+	}
329	+	while(*args != NULL) {
330	+	if(strlen(proctitle) + strlen(*args) >= alloc) {
331	+	alloc = (alloc + strlen(*args)) * 2;
332	+	proctitletmp = realloc(proctitle, alloc);
333	+	if(proctitletmp == NULL) {
334	+	return NULL;
335	+	}
336	+	proctitle = proctitletmp;
337	+	}
338	+	strlcat(proctitle, *args, alloc);
339	+	strlcat(proctitle, " ", alloc);
340	+	args++;
341	+	}
342	+	/* remove trailing space */
343	+	proctitle[strlen(proctitle)-1] = '\0';
344	+	proc_state_ptr->proctitle = proctitle;
345	+	}
346	+	else {
347	+	proc_state_ptr->proctitle = NULL;
348	+	}
349	+	}
350	+	else {
351	+	proc_state_ptr->proctitle = NULL;
352	+	}
353	+	#endif
354	+
355	+	#ifdef FREEBSD5
356	+	proc_state_ptr->pid = kp_stats[i].ki_pid;
357	+	proc_state_ptr->parent = kp_stats[i].ki_ppid;
358	+	proc_state_ptr->pgid = kp_stats[i].ki_pgid;
359	+	#else
360	+	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
361	+	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
362	+	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
363	+	#endif
364	+
365	+	#ifdef FREEBSD5
366	+	proc_state_ptr->uid = kp_stats[i].ki_ruid;
367	+	proc_state_ptr->euid = kp_stats[i].ki_uid;
368	+	proc_state_ptr->gid = kp_stats[i].ki_rgid;
369	+	proc_state_ptr->egid = kp_stats[i].ki_svgid;
370	+	#elif defined(DFBSD)
371	+	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid;
372	+	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid;
373	+	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid;
374	+	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid;
375	+	#else
376	+	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
377	+	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
378	+	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
379	+	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
380	+	#endif
381	+
382	+	#ifdef FREEBSD5
383	+	proc_state_ptr->proc_size = kp_stats[i].ki_size;
384	+	/* This is in pages */
385	+	proc_state_ptr->proc_resident =
386	+	kp_stats[i].ki_rssize * getpagesize();
387	+	/* This is in microseconds */
388	+	proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
389	+	proc_state_ptr->cpu_percent =
390	+	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
391	+	proc_state_ptr->nice = kp_stats[i].ki_nice;
392	+	#else
393	+	proc_state_ptr->proc_size =
394	+	kp_stats[i].kp_eproc.e_vm.vm_map.size;
395	+	/* This is in pages */
396	+	proc_state_ptr->proc_resident =
397	+	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
398	+	#if defined(NETBSD) || defined(OPENBSD)
399	+	proc_state_ptr->time_spent =
400	+	kp_stats[i].kp_proc.p_rtime.tv_sec;
401	+	#elif defined(DFBSD)
402	+	proc_state_ptr->time_spent =
403	+	( kp_stats[i].kp_thread.td_uticks +
404	+	kp_stats[i].kp_thread.td_sticks +
405	+	kp_stats[i].kp_thread.td_iticks ) / 1000000;
406	+	#else
407	+	/* This is in microseconds */
408	+	proc_state_ptr->time_spent =
409	+	kp_stats[i].kp_proc.p_runtime / 1000000;
410	+	#endif
411	+	proc_state_ptr->cpu_percent =
412	+	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
413	+	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
414	+	#endif
415	+
416	+	#ifdef FREEBSD5
417		switch (kp_stats[i].ki_stat) {
418		#else
419		switch (kp_stats[i].kp_proc.p_stat) {
#	Line 173 | Line 423 | process_stat_t *get_process_stats(){
423		#ifdef SONPROC
424		case SONPROC: /* NetBSD */
425		#endif
426	<	process_stat.running++;
426	>	proc_state_ptr->state = RUNNING;
427		break;
428		case SSLEEP:
429		#ifdef SWAIT
#	Line 182 | Line 432 | process_stat_t *get_process_stats(){
432		#ifdef SLOCK
433		case SLOCK: /* FreeBSD 5 */
434		#endif
435	<	process_stat.sleeping++;
435	>	proc_state_ptr->state = SLEEPING;
436		break;
437		case SSTOP:
438	<	process_stat.stopped++;
438	>	proc_state_ptr->state = STOPPED;
439		break;
440		case SZOMB:
441		#ifdef SDEAD
442		case SDEAD: /* OpenBSD & NetBSD */
443		#endif
444	<	process_stat.zombie++;
444	>	proc_state_ptr->state = ZOMBIE;
445		break;
446	<	}
446	>	default:
447	>	proc_state_ptr->state = UNKNOWN;
448	>	break;
449	>	}
450	>	proc_state_size++;
451		}
452
453		free(kp_stats);
454		#endif
455
456	<	#ifdef CYGWIN
457	<	return NULL;
458	<	#endif
456	>	*ps = proc_state;
457	>	return proc_state_size;
458	>	}
459
460	<	process_stat.total=process_stat.sleeping+process_stat.running+process_stat.zombie+process_stat.stopped;
460	>	process_stat_t *get_process_stats() {
461	>	static process_stat_t process_stat;
462	>	proc_state_t *ps;
463	>	int ps_size, x;
464	>
465	>	process_stat.sleeping = 0;
466	>	process_stat.running = 0;
467	>	process_stat.zombie = 0;
468	>	process_stat.stopped = 0;
469	>	process_stat.total = 0;
470	>
471	>	ps_size = get_proc_snapshot(&ps);
472	>
473	>	if(ps_size == 0) {
474	>	return NULL;
475	>	}
476	>
477	>	for(x = 0; x < ps_size; x++) {
478	>	switch (ps->state) {
479	>	case RUNNING:
480	>	process_stat.running++;
481	>	break;
482	>	case SLEEPING:
483	>	process_stat.sleeping++;
484	>	break;
485	>	case STOPPED:
486	>	process_stat.stopped++;
487	>	break;
488	>	case ZOMBIE:
489	>	process_stat.zombie++;
490	>	break;
491	>	default:
492	>	/* currently no mapping for UNKNOWN in process_stat_t */
493	>	break;
494	>	}
495	>	ps++;
496	>	}
497	>
498	>	process_stat.total = ps_size;
499
500		return &process_stat;
501		}

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