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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 1.30 by tdb, Sat Apr 3 22:59:30 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	+	#include <kvm.h>
65		#endif
66
67	<	process_stat_t *get_process_stats(){
68	<
69	<	static process_stat_t process_stat;
70	<
71	<	#if defined(SOLARIS) || defined(LINUX)
72	<	DIR *proc_dir;
73	<	struct dirent *dir_entry;
74	<	char filename[MAX_FILE_LENGTH];
75	<	FILE *f;
67	>	int get_proc_snapshot(proc_state_t **ps){
68	>	proc_state_t *proc_state = NULL;
69	>	proc_state_t *proc_state_ptr;
70	>	int proc_state_size = 0;
71	>	#ifdef ALLBSD
72	>	int mib[3];
73	>	size_t size;
74	>	struct kinfo_proc *kp_stats;
75	>	int procs, i, alloc;
76	>	static kvm_t *kvmd;
77	>	char **args;
78	>	char *proctitle;
79		#endif
80	<	#ifdef LINUX
81	<	char *line_ptr;
82	<	#endif
80	>	#if defined(SOLARIS) || defined(LINUX)
81	>	DIR *proc_dir;
82	>	struct dirent *dir_entry;
83	>	char filename[MAX_FILE_LENGTH];
84	>	FILE *f;
85		#ifdef SOLARIS
86		psinfo_t process_info;
87		#endif
88	<	#ifdef ALLBSD
89	<	int mib[3];
90	<	size_t size;
91	<	struct kinfo_proc *kp_stats;
92	<	int procs, i;
88	>	#ifdef LINUX
89	>	char s;
90	>	/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */
91	>	char ps_name[4096];
92	>	char *ptr;
93	>	static char *psargs = NULL;
94	>	static int psarg_size = 0;
95	>	unsigned long stime, utime;
96	>	int x;
97	>	int fn;
98	>	int toread;
99	>	ssize_t size;
100	>	int t_read;
101		#endif
102
103	<	process_stat.sleeping=0;
104	<	process_stat.running=0;
105	<	process_stat.zombie=0;
86	<	process_stat.stopped=0;
87	<	process_stat.total=0;
103	>	if((proc_dir=opendir(PROC_LOCATION))==NULL){
104	>	return -1;
105	>	}
106
107	<	#if defined(SOLARIS) || defined(LINUX)
108	<	if((proc_dir=opendir(PROC_LOCATION))==NULL){
91	<	return NULL;
92	<	}
107	>	while((dir_entry=readdir(proc_dir))!=NULL){
108	>	if(atoi(dir_entry->d_name) == 0) continue;
109
94	–	while((dir_entry=readdir(proc_dir))!=NULL){
95	–	if(atoi(dir_entry->d_name) == 0) continue;
96	–
110		#ifdef SOLARIS
111	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
111	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name);
112		#endif
113		#ifdef LINUX
114	<	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/status", dir_entry->d_name);
114	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name);
115		#endif
116	+	if((f=fopen(filename, "r"))==NULL){
117	+	/* Open failed.. Process since vanished, or the path was too long.
118	+	* Ah well, move onwards to the next one */
119	+	continue;
120	+	}
121	+	#ifdef SOLARIS
122	+	fread(&process_info, sizeof(psinfo_t), 1, f);
123	+	#endif
124
125	<	if((f=fopen(filename, "r"))==NULL){
126	<	/* Open failed.. Process since vanished, or the path was too long.
127	<	* Ah well, move onwards to the next one */
128	<	continue;
129	<	}
125	>	proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t));
126	>	proc_state_ptr = proc_state+proc_state_size;
127	>	#ifdef SOLARIS
128	>	proc_state_ptr->pid = process_info.pr_pid;
129	>	proc_state_ptr->parent = process_info.pr_ppid;
130	>	proc_state_ptr->pgid = process_info.pr_pgid;
131	>	proc_state_ptr->uid = process_info.pr_uid;
132	>	proc_state_ptr->euid = process_info.pr_euid;
133	>	proc_state_ptr->gid = process_info.pr_gid;
134	>	proc_state_ptr->egid = process_info.pr_egid;
135	>	proc_state_ptr->proc_size = (process_info.pr_size) * 1024;
136	>	proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024;
137	>	proc_state_ptr->time_spent = process_info.pr_time.tv_sec;
138	>	proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000;
139	>	proc_state_ptr->process_name = strdup(process_info.pr_fname);
140	>	proc_state_ptr->proctitle = strdup(process_info.pr_psargs);
141
142	<	#ifdef SOLARIS
143	<	fread(&process_info, sizeof(psinfo_t), 1, f);
144	<	if(process_info.pr_lwp.pr_state==1) process_stat.sleeping++;
145	<	if(process_info.pr_lwp.pr_state==2) process_stat.running++;
146	<	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++;
142	>	if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING;
143	>	if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING;
144	>	if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE;
145	>	if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED;
146	>	if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING;
147		#endif
148		#ifdef LINUX
149	<	if((line_ptr=f_read_line(f, "State:"))==NULL){
150	<	fclose(f);
151	<	continue;
149	>	x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*lu %*lu %*lu %*lu %*lu %lu %lu %*ld %*ld %*ld %d %*ld %*ld %*lu %llu %llu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*lu %*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));
150	>	proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize();
151	>	if(s == 'S') proc_state_ptr->state = SLEEPING;
152	>	if(s == 'R') proc_state_ptr->state = RUNNING;
153	>	if(s == 'Z') proc_state_ptr->state = ZOMBIE;
154	>	if(s == 'T') proc_state_ptr->state = STOPPED;
155	>	if(s == 'D') proc_state_ptr->state = STOPPED;
156	>
157	>	/* pa_name[0] should = '(' */
158	>	ptr = strchr(&ps_name[1], ')');
159	>	if(ptr !=NULL) *ptr='\0';
160	>	proc_state_ptr->process_name = strdup(&ps_name[1]);
161	>
162	>	/* Need to do cpu */
163	>
164	>
165	>	/* proctitle */
166	>	snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name);
167	>
168	>	if((fn=open(filename, O_RDONLY)) == -1){
169	>	/* Open failed.. Process since vanished, or the path was too long.
170	>	* Ah well, move onwards to the next one */
171	>	continue;
172	>	}
173	>	#define         PSARG_START_SIZE 128
174	>	if(psargs == NULL){
175	>	psargs = malloc(PSARG_START_SIZE);
176	>	psarg_size = PSARG_START_SIZE;
177		}
178	<	if((line_ptr=strchr(line_ptr, '\t'))==NULL){
179	<	fclose(f);
180	<	continue;
178	>	ptr = psargs;
179	>	t_read = 0;
180	>	toread = psarg_size;
181	>	while((size = read(fn, ptr, toread)) == toread){
182	>	psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE));
183	>	ptr = psargs+psarg_size;
184	>	t_read = psarg_size;
185	>	psarg_size+=PSARG_START_SIZE;
186	>	toread = PSARG_START_SIZE;
187		}
188	<	line_ptr++;
189	<	if(line_ptr=='\0'){
190	<	fclose(f);
191	<	continue;
188	>	if(size != -1) t_read+=size;
189	>
190	>	ptr = psargs;
191	>	for(x=0; x<t_read; x++){
192	>	if (*ptr == '\0') *ptr = ' ';
193	>	ptr++;
194		}
195	+	/*  for safety sake */
196	+	psargs[t_read] = '\0';
197
198	<	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
198	>	proc_state_ptr->proctitle = strdup(psargs);
199
140	–	fclose(f);
141	–	}
142	–	closedir(proc_dir);
200		#endif
201	+
202	+	proc_state_size++;
203	+
204	+	fclose(f);
205	+	}
206	+	closedir(proc_dir);
207	+	#endif
208	+
209		#ifdef ALLBSD
210	<	mib[0] = CTL_KERN;
146	<	mib[1] = KERN_PROC;
147	<	mib[2] = KERN_PROC_ALL;
210	>	kvmd = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL);
211
212	<	if (sysctl(mib, 3, NULL, &size, NULL, 0) < 0) {
150	<	return NULL;
151	<	}
152	<
153	<	procs = size / sizeof(struct kinfo_proc);
212	>	if(kvmd == NULL) return NULL;
213
214	<	kp_stats = malloc(size);
215	<	if (kp_stats == NULL) {
214	>	kp_stats = kvm_getprocs(kvmd, KERN_PROC_ALL, 0, &procs);
215	>
216	>	if (kp_stats == NULL || procs < 0) {
217		return NULL;
218		}
159	–
160	–	if (sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) {
161	–	free(kp_stats);
162	–	return NULL;
163	–	}
219
220		for (i = 0; i < procs; i++) {
221	+	/* replace with something more sensible */
222	+	proc_state = realloc(proc_state,
223	+	(1+proc_state_size)*sizeof(proc_state_t));
224	+	if(proc_state == NULL ) {
225	+	return NULL;
226	+	}
227	+	proc_state_ptr = proc_state+proc_state_size;
228	+
229		#ifdef FREEBSD5
230	+	proc_state_ptr->process_name =
231	+	strdup(kp_stats[i].ki_comm);
232	+	#else
233	+	proc_state_ptr->process_name =
234	+	strdup(kp_stats[i].kp_proc.p_comm);
235	+	#endif
236	+
237	+	args = kvm_getargv(kvmd, &(kp_stats[i]), 0);
238	+	if(args != NULL) {
239	+	alloc = 1;
240	+	proctitle = malloc(alloc);
241	+	if(proctitle == NULL) {
242	+	return NULL;
243	+	}
244	+	while(*args != NULL) {
245	+	if(strlen(proctitle) + strlen(*args) >= alloc) {
246	+	alloc = (alloc + strlen(*args)) << 1;
247	+	proctitle = realloc(proctitle, alloc);
248	+	if(proctitle == NULL) {
249	+	return NULL;
250	+	}
251	+	}
252	+	strncat(proctitle, *args, strlen(*args));
253	+	strncat(proctitle, " ", 1);
254	+	args++;
255	+	}
256	+	/* remove trailing space */
257	+	proctitle[strlen(proctitle)-1] = NULL;
258	+	proc_state_ptr->proctitle = proctitle;
259	+	}
260	+	else {
261	+	proc_state_ptr->proctitle =
262	+	malloc(strlen(proc_state_ptr->process_name)+4);
263	+	if(proc_state_ptr->proctitle == NULL) {
264	+	return NULL;
265	+	}
266	+	sprintf(proc_state_ptr->proctitle, " (%s)",
267	+	proc_state_ptr->process_name);
268	+	}
269	+
270	+	#ifdef FREEBSD5
271	+	proc_state_ptr->pid = kp_stats[i].ki_pid;
272	+	proc_state_ptr->parent = kp_stats[i].ki_ppid;
273	+	proc_state_ptr->pgid = kp_stats[i].ki_pgid;
274	+	#else
275	+	proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid;
276	+	proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid;
277	+	proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid;
278	+	#endif
279	+
280	+	#ifdef FREEBSD5
281	+	proc_state_ptr->uid = kp_stats[i].ki_ruid;
282	+	proc_state_ptr->euid = kp_stats[i].ki_uid;
283	+	proc_state_ptr->gid = kp_stats[i].ki_rgid;
284	+	proc_state_ptr->egid = kp_stats[i].ki_svgid;
285	+	#else
286	+	proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid;
287	+	proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid;
288	+	proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid;
289	+	proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid;
290	+	#endif
291	+
292	+	#ifdef FREEBSD5
293	+	proc_state_ptr->proc_size = kp_stats[i].ki_size;
294	+	/* This is in pages */
295	+	proc_state_ptr->proc_resident =
296	+	kp_stats[i].ki_rssize * getpagesize();
297	+	/* This is in microseconds */
298	+	proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000;
299	+	proc_state_ptr->cpu_percent =
300	+	((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0;
301	+	proc_state_ptr->nice = kp_stats[i].ki_nice;
302	+	#else
303	+	proc_state_ptr->proc_size =
304	+	kp_stats[i].kp_eproc.e_vm.vm_map.size;
305	+	/* This is in pages */
306	+	proc_state_ptr->proc_resident =
307	+	kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize();
308	+	/* This is in microseconds */
309	+	proc_state_ptr->time_spent =
310	+	kp_stats[i].kp_proc.p_runtime / 1000000;
311	+	proc_state_ptr->cpu_percent =
312	+	((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0;
313	+	proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice;
314	+	#endif
315	+
316	+	#ifdef FREEBSD5
317		switch (kp_stats[i].ki_stat) {
318		#else
319		switch (kp_stats[i].kp_proc.p_stat) {
#	Line 173 | Line 323 | process_stat_t *get_process_stats(){
323		#ifdef SONPROC
324		case SONPROC: /* NetBSD */
325		#endif
326	<	process_stat.running++;
326	>	proc_state_ptr->state = RUNNING;
327		break;
328		case SSLEEP:
329		#ifdef SWAIT
#	Line 182 | Line 332 | process_stat_t *get_process_stats(){
332		#ifdef SLOCK
333		case SLOCK: /* FreeBSD 5 */
334		#endif
335	<	process_stat.sleeping++;
335	>	proc_state_ptr->state = SLEEPING;
336		break;
337		case SSTOP:
338	<	process_stat.stopped++;
338	>	proc_state_ptr->state = STOPPED;
339		break;
340		case SZOMB:
341		#ifdef SDEAD
342		case SDEAD: /* OpenBSD & NetBSD */
343		#endif
344	<	process_stat.zombie++;
344	>	proc_state_ptr->state = ZOMBIE;
345		break;
346	<	}
346	>	}
347	>	proc_state_size++;
348		}
349
350		free(kp_stats);
351		#endif
352
353	<	#ifdef CYGWIN
354	<	return NULL;
355	<	#endif
353	>	*ps = proc_state;
354	>	return proc_state_size;
355	>	}
356
357	<	process_stat.total=process_stat.sleeping+process_stat.running+process_stat.zombie+process_stat.stopped;
357	>	process_stat_t *get_process_stats() {
358	>	static process_stat_t process_stat;
359	>	proc_state_t *ps;
360	>	int ps_size, x;
361	>
362	>	process_stat.sleeping = 0;
363	>	process_stat.running = 0;
364	>	process_stat.zombie = 0;
365	>	process_stat.stopped = 0;
366	>	process_stat.total = 0;
367	>
368	>	ps_size = get_proc_snapshot(&ps);
369	>
370	>	for(x = 0; x < ps_size; x++) {
371	>	switch (ps->state) {
372	>	/* currently no mapping for UNKNOWN in process_stat_t */
373	>	case RUNNING:
374	>	process_stat.running++;
375	>	break;
376	>	case SLEEPING:
377	>	process_stat.sleeping++;
378	>	break;
379	>	case STOPPED:
380	>	process_stat.stopped++;
381	>	break;
382	>	case ZOMBIE:
383	>	process_stat.zombie++;
384	>	break;
385	>	}
386	>	ps++;
387	>	}
388	>
389	>	process_stat.total = ps_size;
390
391		return &process_stat;
392		}

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