1 /*
2 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "jvm.h"
27 #include "memory/allocation.inline.hpp"
28 #include "runtime/os.hpp"
29 #include "runtime/os_perf.hpp"
30 #include "os_solaris.inline.hpp"
31 #include "utilities/macros.hpp"
32
33 #include CPU_HEADER(vm_version_ext)
34
35 #include <sys/types.h>
36 #include <procfs.h>
37 #include <dirent.h>
38 #include <errno.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <strings.h>
42 #include <unistd.h>
43 #include <fcntl.h>
44 #include <kstat.h>
45 #include <unistd.h>
46 #include <string.h>
47 #include <sys/sysinfo.h>
48 #include <sys/lwp.h>
49 #include <pthread.h>
50 #include <time.h>
51 #include <utmpx.h>
52 #include <dlfcn.h>
53 #include <sys/loadavg.h>
54 #include <limits.h>
55
56 static const double NANOS_PER_SEC = 1000000000.0;
57
58 struct CPUPerfTicks {
59 kstat_t* kstat;
60 uint64_t last_idle;
61 uint64_t last_total;
62 double last_ratio;
63 };
64
65 struct CPUPerfCounters {
66 int nProcs;
67 CPUPerfTicks* jvmTicks;
68 kstat_ctl_t* kstat_ctrl;
69 };
70
71 static int get_info(const char* path, void* info, size_t s, off_t o) {
72 assert(path != NULL, "path is NULL!");
73 assert(info != NULL, "info is NULL!");
74
75 int fd = -1;
76
77 if ((fd = os::open(path, O_RDONLY, 0)) < 0) {
78 return OS_ERR;
79 }
80 if (pread(fd, info, s, o) != s) {
81 close(fd);
82 return OS_ERR;
83 }
84 close(fd);
85 return OS_OK;
86 }
87
88 static int get_psinfo2(void* info, size_t s, off_t o) {
89 return get_info("/proc/self/psinfo", info, s, o);
90 }
91
92 static int get_psinfo(psinfo_t* info) {
93 return get_psinfo2(info, sizeof(*info), 0);
94 }
95
96 static int get_psinfo(char* file, psinfo_t* info) {
97 assert(file != NULL, "file is NULL!");
98 assert(info != NULL, "info is NULL!");
99 return get_info(file, info, sizeof(*info), 0);
100 }
101
102
103 static int get_usage(prusage_t* usage) {
104 assert(usage != NULL, "usage is NULL!");
105 return get_info("/proc/self/usage", usage, sizeof(*usage), 0);
106 }
107
108 static int read_cpustat(kstat_ctl_t* kstat_ctrl, CPUPerfTicks* load, cpu_stat_t* cpu_stat) {
109 assert(kstat_ctrl != NULL, "kstat_ctrl pointer is NULL!");
110 assert(load != NULL, "load pointer is NULL!");
111 assert(cpu_stat != NULL, "cpu_stat pointer is NULL!");
112
113 if (load->kstat == NULL) {
114 // no handle.
115 return OS_ERR;
116 }
117 if (kstat_read(kstat_ctrl, load->kstat, cpu_stat) == OS_ERR) {
118 // disable handle for this CPU
119 load->kstat = NULL;
120 return OS_ERR;
121 }
122 return OS_OK;
123 }
124
125 static double get_cpu_load(int which_logical_cpu, CPUPerfCounters* counters) {
126 assert(counters != NULL, "counters pointer is NULL!");
127
128 cpu_stat_t cpu_stat = {0};
129
130 if (which_logical_cpu >= counters->nProcs) {
131 return .0;
132 }
133
134 CPUPerfTicks load = counters->jvmTicks[which_logical_cpu];
135 if (read_cpustat(counters->kstat_ctrl, &load, &cpu_stat) != OS_OK) {
136 return .0;
137 }
138
139 uint_t* usage = cpu_stat.cpu_sysinfo.cpu;
140 if (usage == NULL) {
141 return .0;
142 }
143
144 uint64_t c_idle = usage[CPU_IDLE];
145 uint64_t c_total = 0;
146
147 for (int i = 0; i < CPU_STATES; i++) {
148 c_total += usage[i];
149 }
150
151 // Calculate diff against previous snapshot
152 uint64_t d_idle = c_idle - load.last_idle;
153 uint64_t d_total = c_total - load.last_total;
154
155 /** update if weve moved */
156 if (d_total > 0) {
157 // Save current values for next time around
158 load.last_idle = c_idle;
159 load.last_total = c_total;
160 load.last_ratio = (double) (d_total - d_idle) / d_total;
161 }
162
163 return load.last_ratio;
164 }
165
166 static int get_boot_time(uint64_t* time) {
167 assert(time != NULL, "time pointer is NULL!");
168 setutxent();
169 for(;;) {
170 struct utmpx* u;
171 if ((u = getutxent()) == NULL) {
172 break;
173 }
174 if (u->ut_type == BOOT_TIME) {
175 *time = u->ut_xtime;
176 endutxent();
177 return OS_OK;
178 }
179 }
180 endutxent();
181 return OS_ERR;
182 }
183
184 static int get_noof_context_switches(CPUPerfCounters* counters, uint64_t* switches) {
185 assert(switches != NULL, "switches pointer is NULL!");
186 assert(counters != NULL, "counter pointer is NULL!");
187 *switches = 0;
188 uint64_t s = 0;
189
190 // Collect data from all CPUs
191 for (int i = 0; i < counters->nProcs; i++) {
192 cpu_stat_t cpu_stat = {0};
193 CPUPerfTicks load = counters->jvmTicks[i];
194
195 if (read_cpustat(counters->kstat_ctrl, &load, &cpu_stat) == OS_OK) {
196 s += cpu_stat.cpu_sysinfo.pswitch;
197 } else {
198 //fail fast...
199 return OS_ERR;
200 }
201 }
202 *switches = s;
203 return OS_OK;
204 }
205
206 static int perf_context_switch_rate(CPUPerfCounters* counters, double* rate) {
207 assert(counters != NULL, "counters is NULL!");
208 assert(rate != NULL, "rate pointer is NULL!");
209 static pthread_mutex_t contextSwitchLock = PTHREAD_MUTEX_INITIALIZER;
210 static uint64_t lastTime = 0;
211 static uint64_t lastSwitches = 0;
212 static double lastRate = 0.0;
213
214 uint64_t lt = 0;
215 int res = 0;
216
217 if (lastTime == 0) {
218 uint64_t tmp;
219 if (get_boot_time(&tmp) < 0) {
220 return OS_ERR;
221 }
222 lt = tmp * 1000;
223 }
224
225 res = OS_OK;
226
227 pthread_mutex_lock(&contextSwitchLock);
228 {
229
230 uint64_t sw = 0;
231 clock_t t, d;
232
233 if (lastTime == 0) {
234 lastTime = lt;
235 }
236
237 t = clock();
238 d = t - lastTime;
239
240 if (d == 0) {
241 *rate = lastRate;
242 } else if (get_noof_context_switches(counters, &sw)== OS_OK) {
243 *rate = ((double)(sw - lastSwitches) / d) * 1000;
244 lastRate = *rate;
245 lastSwitches = sw;
246 lastTime = t;
247 } else {
248 *rate = 0.0;
249 res = OS_ERR;
250 }
251 if (*rate < 0.0) {
252 *rate = 0.0;
253 lastRate = 0.0;
254 }
255 }
256 pthread_mutex_unlock(&contextSwitchLock);
257 return res;
258 }
259
260
261
262 class CPUPerformanceInterface::CPUPerformance : public CHeapObj<mtInternal> {
263 friend class CPUPerformanceInterface;
264 private:
265 CPUPerfCounters _counters;
266 int cpu_load(int which_logical_cpu, double* cpu_load);
267 int context_switch_rate(double* rate);
268 int cpu_load_total_process(double* cpu_load);
269 int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad);
270
271 CPUPerformance();
272 ~CPUPerformance();
273 bool initialize();
274 };
275
276 CPUPerformanceInterface::CPUPerformance::CPUPerformance() {
277 _counters.nProcs = 0;
278 _counters.jvmTicks = NULL;
279 _counters.kstat_ctrl = NULL;
280 }
281
282 bool CPUPerformanceInterface::CPUPerformance::initialize() {
283 // initialize kstat control structure,
284 _counters.kstat_ctrl = kstat_open();
285 assert(_counters.kstat_ctrl != NULL, "error initializing kstat control structure!");
286
287 if (NULL == _counters.kstat_ctrl) {
288 return false;
289 }
290
291 // Get number of CPU(s)
292 if ((_counters.nProcs = sysconf(_SC_NPROCESSORS_ONLN)) == OS_ERR) {
293 // ignore error?
294 _counters.nProcs = 1;
295 }
296
297 assert(_counters.nProcs > 0, "no CPUs detected in sysconf call!");
298 if (_counters.nProcs == 0) {
299 return false;
300 }
301
302 // Data structure(s) for saving CPU load (one per CPU)
303 size_t array_entry_count = _counters.nProcs;
304 _counters.jvmTicks = NEW_C_HEAP_ARRAY(CPUPerfTicks, array_entry_count, mtInternal);
305 memset(_counters.jvmTicks, 0, array_entry_count * sizeof(*_counters.jvmTicks));
306
307 // Get kstat cpu_stat counters for every CPU
308 // loop over kstat to find our cpu_stat(s)
309 int i = 0;
310 for (kstat_t* kstat = _counters.kstat_ctrl->kc_chain; kstat != NULL; kstat = kstat->ks_next) {
311 if (strncmp(kstat->ks_module, "cpu_stat", 8) == 0) {
312 if (kstat_read(_counters.kstat_ctrl, kstat, NULL) == OS_ERR) {
313 continue;
314 }
315 if (i == _counters.nProcs) {
316 // more cpu_stats than reported CPUs
317 break;
318 }
319 _counters.jvmTicks[i++].kstat = kstat;
320 }
321 }
322 return true;
323 }
324
325 CPUPerformanceInterface::CPUPerformance::~CPUPerformance() {
326 FREE_C_HEAP_ARRAY(char, _counters.jvmTicks);
327 if (_counters.kstat_ctrl != NULL) {
328 kstat_close(_counters.kstat_ctrl);
329 }
330 }
331
332 int CPUPerformanceInterface::CPUPerformance::cpu_load(int which_logical_cpu, double* cpu_load) {
333 assert(cpu_load != NULL, "cpu_load pointer is NULL!");
334 double t = .0;
335 if (-1 == which_logical_cpu) {
336 for (int i = 0; i < _counters.nProcs; i++) {
337 t += get_cpu_load(i, &_counters);
338 }
339 // Cap total systemload to 1.0
340 t = MIN2<double>((t / _counters.nProcs), 1.0);
341 } else {
342 t = MIN2<double>(get_cpu_load(which_logical_cpu, &_counters), 1.0);
343 }
344
345 *cpu_load = t;
346 return OS_OK;
347 }
348
349 int CPUPerformanceInterface::CPUPerformance::cpu_load_total_process(double* cpu_load) {
350 assert(cpu_load != NULL, "cpu_load pointer is NULL!");
351
352 psinfo_t info;
353
354 // Get the percentage of "recent cpu usage" from all the lwp:s in the JVM:s
355 // process. This is returned as a value between 0.0 and 1.0 multiplied by 0x8000.
356 if (get_psinfo2(&info.pr_pctcpu, sizeof(info.pr_pctcpu), offsetof(psinfo_t, pr_pctcpu)) != 0) {
357 *cpu_load = 0.0;
358 return OS_ERR;
359 }
360 *cpu_load = (double) info.pr_pctcpu / 0x8000;
361 return OS_OK;
362 }
363
364 int CPUPerformanceInterface::CPUPerformance::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) {
365 assert(pjvmUserLoad != NULL, "pjvmUserLoad not inited");
366 assert(pjvmKernelLoad != NULL, "pjvmKernelLoad not inited");
367 assert(psystemTotalLoad != NULL, "psystemTotalLoad not inited");
368
369 static uint64_t lastTime;
370 static uint64_t lastUser, lastKernel;
371 static double lastUserRes, lastKernelRes;
372
373 pstatus_t pss;
374 psinfo_t info;
375
376 *pjvmKernelLoad = *pjvmUserLoad = *psystemTotalLoad = 0;
377 if (get_info("/proc/self/status", &pss.pr_utime, sizeof(timestruc_t)*2, offsetof(pstatus_t, pr_utime)) != 0) {
378 return OS_ERR;
379 }
380
381 if (get_psinfo(&info) != 0) {
382 return OS_ERR;
383 }
384
385 // get the total time in user, kernel and total time
386 // check ratios for 'lately' and multiply the 'recent load'.
387 uint64_t time = (info.pr_time.tv_sec * NANOS_PER_SEC) + info.pr_time.tv_nsec;
388 uint64_t user = (pss.pr_utime.tv_sec * NANOS_PER_SEC) + pss.pr_utime.tv_nsec;
389 uint64_t kernel = (pss.pr_stime.tv_sec * NANOS_PER_SEC) + pss.pr_stime.tv_nsec;
390 uint64_t diff = time - lastTime;
391 double load = (double) info.pr_pctcpu / 0x8000;
392
393 if (diff > 0) {
394 lastUserRes = (load * (user - lastUser)) / diff;
395 lastKernelRes = (load * (kernel - lastKernel)) / diff;
396
397 // BUG9182835 - patch for clamping these values to sane ones.
398 lastUserRes = MIN2<double>(1, lastUserRes);
399 lastUserRes = MAX2<double>(0, lastUserRes);
400 lastKernelRes = MIN2<double>(1, lastKernelRes);
401 lastKernelRes = MAX2<double>(0, lastKernelRes);
402 }
403
404 double t = .0;
405 cpu_load(-1, &t);
406 // clamp at user+system and 1.0
407 if (lastUserRes + lastKernelRes > t) {
408 t = MIN2<double>(lastUserRes + lastKernelRes, 1.0);
409 }
410
411 *pjvmUserLoad = lastUserRes;
412 *pjvmKernelLoad = lastKernelRes;
413 *psystemTotalLoad = t;
414
415 lastTime = time;
416 lastUser = user;
417 lastKernel = kernel;
418
419 return OS_OK;
420 }
421
422 int CPUPerformanceInterface::CPUPerformance::context_switch_rate(double* rate) {
423 return perf_context_switch_rate(&_counters, rate);
424 }
425
426 CPUPerformanceInterface::CPUPerformanceInterface() {
427 _impl = NULL;
428 }
429
430 bool CPUPerformanceInterface::initialize() {
431 _impl = new CPUPerformanceInterface::CPUPerformance();
432 return _impl->initialize();
433 }
434
435 CPUPerformanceInterface::~CPUPerformanceInterface(void) {
436 if (_impl != NULL) {
437 delete _impl;
438 }
439 }
440
441 int CPUPerformanceInterface::cpu_load(int which_logical_cpu, double* cpu_load) const {
442 return _impl->cpu_load(which_logical_cpu, cpu_load);
443 }
444
445 int CPUPerformanceInterface::cpu_load_total_process(double* cpu_load) const {
446 return _impl->cpu_load_total_process(cpu_load);
447 }
448
449 int CPUPerformanceInterface::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) const {
450 return _impl->cpu_loads_process(pjvmUserLoad, pjvmKernelLoad, psystemTotalLoad);
451 }
452
453 int CPUPerformanceInterface::context_switch_rate(double* rate) const {
454 return _impl->context_switch_rate(rate);
455 }
456
457 class SystemProcessInterface::SystemProcesses : public CHeapObj<mtInternal> {
458 friend class SystemProcessInterface;
459 private:
460 class ProcessIterator : public CHeapObj<mtInternal> {
461 friend class SystemProcessInterface::SystemProcesses;
462 private:
463 DIR* _dir;
464 struct dirent* _entry;
465 bool _valid;
466
467 ProcessIterator();
468 ~ProcessIterator();
469 bool initialize();
470
471 bool is_valid() const { return _valid; }
472 bool is_valid_entry(struct dirent* const entry) const;
473 bool is_dir(const char* const name) const;
474 char* allocate_string(const char* const str) const;
475 int current(SystemProcess* const process_info);
476 int next_process();
477 };
478
479 ProcessIterator* _iterator;
480 SystemProcesses();
481 bool initialize();
482 ~SystemProcesses();
483
484 //information about system processes
485 int system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const;
486 };
487
488 bool SystemProcessInterface::SystemProcesses::ProcessIterator::is_dir(const char* name) const {
489 struct stat64 mystat;
490 int ret_val = 0;
491
492 ret_val = ::stat64(name, &mystat);
493
494 if (ret_val < 0) {
495 return false;
496 }
497 ret_val = S_ISDIR(mystat.st_mode);
498 return ret_val > 0;
499 }
500
501 // if it has a numeric name, is a directory and has a 'psinfo' file in it
502 bool SystemProcessInterface::SystemProcesses::ProcessIterator::is_valid_entry(struct dirent* entry) const {
503 // ignore the "." and ".." directories
504 if ((strcmp(entry->d_name, ".") == 0) ||
505 (strcmp(entry->d_name, "..") == 0)) {
506 return false;
507 }
508
509 char buffer[PATH_MAX] = {0};
510 uint64_t size = 0;
511 bool result = false;
512 FILE *fp = NULL;
513
514 if (atoi(entry->d_name) != 0) {
515 jio_snprintf(buffer, PATH_MAX, "/proc/%s", entry->d_name);
516
517 if (is_dir(buffer)) {
518 memset(buffer, 0, PATH_MAX);
519 jio_snprintf(buffer, PATH_MAX, "/proc/%s/psinfo", entry->d_name);
520 if ((fp = fopen(buffer, "r")) != NULL) {
521 int nread = 0;
522 psinfo_t psinfo_data;
523 if ((nread = fread(&psinfo_data, 1, sizeof(psinfo_t), fp)) != -1) {
524 // only considering system process owned by root
525 if (psinfo_data.pr_uid == 0) {
526 result = true;
527 }
528 }
529 }
530 }
531 }
532
533 if (fp != NULL) {
534 fclose(fp);
535 }
536
537 return result;
538 }
539
540 char* SystemProcessInterface::SystemProcesses::ProcessIterator::allocate_string(const char* str) const {
541 if (str != NULL) {
542 return os::strdup_check_oom(str, mtInternal);
543 }
544 return NULL;
545 }
546
547 int SystemProcessInterface::SystemProcesses::ProcessIterator::current(SystemProcess* process_info) {
548 if (!is_valid()) {
549 return OS_ERR;
550 }
551
552 char psinfo_path[PATH_MAX] = {0};
553 jio_snprintf(psinfo_path, PATH_MAX, "/proc/%s/psinfo", _entry->d_name);
554
555 FILE *fp = NULL;
556 if ((fp = fopen(psinfo_path, "r")) == NULL) {
557 return OS_ERR;
558 }
559
560 int nread = 0;
561 psinfo_t psinfo_data;
562 if ((nread = fread(&psinfo_data, 1, sizeof(psinfo_t), fp)) == -1) {
563 fclose(fp);
564 return OS_ERR;
565 }
566
567 char *exe_path = NULL;
568 if ((psinfo_data.pr_fname != NULL) &&
569 (psinfo_data.pr_psargs != NULL)) {
570 char *path_substring = strstr(psinfo_data.pr_psargs, psinfo_data.pr_fname);
571 if (path_substring != NULL) {
572 int len = path_substring - psinfo_data.pr_psargs;
573 exe_path = NEW_C_HEAP_ARRAY(char, len+1, mtInternal);
574 jio_snprintf(exe_path, len, "%s", psinfo_data.pr_psargs);
575 exe_path[len] = '\0';
576 }
577 }
578
579 process_info->set_pid(atoi(_entry->d_name));
580 process_info->set_name(allocate_string(psinfo_data.pr_fname));
581 process_info->set_path(allocate_string(exe_path));
582 process_info->set_command_line(allocate_string(psinfo_data.pr_psargs));
583
584 if (exe_path != NULL) {
585 FREE_C_HEAP_ARRAY(char, exe_path);
586 }
587
588 if (fp != NULL) {
589 fclose(fp);
590 }
591
592 return OS_OK;
593 }
594
595 int SystemProcessInterface::SystemProcesses::ProcessIterator::next_process() {
596 if (!is_valid()) {
597 return OS_ERR;
598 }
599
600 do {
601 _entry = os::readdir(_dir);
602 if (_entry == NULL) {
603 // Error or reached end. Could use errno to distinguish those cases.
604 _valid = false;
605 return OS_ERR;
606 }
607 } while(!is_valid_entry(_entry));
608
609 _valid = true;
610 return OS_OK;
611 }
612
613 SystemProcessInterface::SystemProcesses::ProcessIterator::ProcessIterator() {
614 _dir = NULL;
615 _entry = NULL;
616 _valid = false;
617 }
618
619 bool SystemProcessInterface::SystemProcesses::ProcessIterator::initialize() {
620 _dir = os::opendir("/proc");
621 _entry = NULL;
622 _valid = true;
623 next_process();
624
625 return true;
626 }
627
628 SystemProcessInterface::SystemProcesses::ProcessIterator::~ProcessIterator() {
629 if (_dir != NULL) {
630 os::closedir(_dir);
631 }
632 }
633
634 SystemProcessInterface::SystemProcesses::SystemProcesses() {
635 _iterator = NULL;
636 }
637
638 bool SystemProcessInterface::SystemProcesses::initialize() {
639 _iterator = new SystemProcessInterface::SystemProcesses::ProcessIterator();
640 return _iterator->initialize();
641 }
642
643 SystemProcessInterface::SystemProcesses::~SystemProcesses() {
644 if (_iterator != NULL) {
645 delete _iterator;
646 }
647 }
648
649 int SystemProcessInterface::SystemProcesses::system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const {
650 assert(system_processes != NULL, "system_processes pointer is NULL!");
651 assert(no_of_sys_processes != NULL, "system_processes counter pointer is NULL!");
652 assert(_iterator != NULL, "iterator is NULL!");
653
654 // initialize pointers
655 *no_of_sys_processes = 0;
656 *system_processes = NULL;
657
658 while (_iterator->is_valid()) {
659 SystemProcess* tmp = new SystemProcess();
660 _iterator->current(tmp);
661
662 //if already existing head
663 if (*system_processes != NULL) {
664 //move "first to second"
665 tmp->set_next(*system_processes);
666 }
667 // new head
668 *system_processes = tmp;
669 // increment
670 (*no_of_sys_processes)++;
671 // step forward
672 _iterator->next_process();
673 }
674 return OS_OK;
675 }
676
677 int SystemProcessInterface::system_processes(SystemProcess** system_procs, int* no_of_sys_processes) const {
678 return _impl->system_processes(system_procs, no_of_sys_processes);
679 }
680
681 SystemProcessInterface::SystemProcessInterface() {
682 _impl = NULL;
683 }
684
685 bool SystemProcessInterface::initialize() {
686 _impl = new SystemProcessInterface::SystemProcesses();
687 return _impl->initialize();
688
689 }
690
691 SystemProcessInterface::~SystemProcessInterface() {
692 if (_impl != NULL) {
693 delete _impl;
694 }
695 }
696
697 CPUInformationInterface::CPUInformationInterface() {
698 _cpu_info = NULL;
699 }
700
701 bool CPUInformationInterface::initialize() {
702 _cpu_info = new CPUInformation();
703 _cpu_info->set_number_of_hardware_threads(VM_Version_Ext::number_of_threads());
704 _cpu_info->set_number_of_cores(VM_Version_Ext::number_of_cores());
705 _cpu_info->set_number_of_sockets(VM_Version_Ext::number_of_sockets());
706 _cpu_info->set_cpu_name(VM_Version_Ext::cpu_name());
707 _cpu_info->set_cpu_description(VM_Version_Ext::cpu_description());
708 return true;
709 }
710
711 CPUInformationInterface::~CPUInformationInterface() {
712 if (_cpu_info != NULL) {
713 if (_cpu_info->cpu_name() != NULL) {
714 const char* cpu_name = _cpu_info->cpu_name();
715 FREE_C_HEAP_ARRAY(char, cpu_name);
716 _cpu_info->set_cpu_name(NULL);
717 }
718 if (_cpu_info->cpu_description() != NULL) {
719 const char* cpu_desc = _cpu_info->cpu_description();
720 FREE_C_HEAP_ARRAY(char, cpu_desc);
721 _cpu_info->set_cpu_description(NULL);
722 }
723 delete _cpu_info;
724 }
725 }
726
727 int CPUInformationInterface::cpu_information(CPUInformation& cpu_info) {
728 if (_cpu_info == NULL) {
729 return OS_ERR;
730 }
731
732 cpu_info = *_cpu_info; // shallow copy assignment
733 return OS_OK;
734 }
735
736 class NetworkPerformanceInterface::NetworkPerformance : public CHeapObj<mtInternal> {
737 friend class NetworkPerformanceInterface;
738 private:
739 NetworkPerformance();
740 NetworkPerformance(const NetworkPerformance& rhs); // no impl
741 NetworkPerformance& operator=(const NetworkPerformance& rhs); // no impl
742 bool initialize();
743 ~NetworkPerformance();
744 int network_utilization(NetworkInterface** network_interfaces) const;
745 };
746
747 NetworkPerformanceInterface::NetworkPerformance::NetworkPerformance() {
748
749 }
750
751 bool NetworkPerformanceInterface::NetworkPerformance::initialize() {
752 return true;
753 }
754
755 NetworkPerformanceInterface::NetworkPerformance::~NetworkPerformance() {
756
757 }
758
759 int NetworkPerformanceInterface::NetworkPerformance::network_utilization(NetworkInterface** network_interfaces) const
760 {
761 kstat_ctl_t* ctl = kstat_open();
762 if (ctl == NULL) {
763 return OS_ERR;
764 }
765
766 NetworkInterface* ret = NULL;
767 for (kstat_t* k = ctl->kc_chain; k != NULL; k = k->ks_next) {
768 if (strcmp(k->ks_class, "net") != 0) {
769 continue;
770 }
771 if (strcmp(k->ks_module, "link") != 0) {
772 continue;
773 }
774
775 if (kstat_read(ctl, k, NULL) == -1) {
776 return OS_ERR;
777 }
778
779 uint64_t bytes_in = UINT64_MAX;
780 uint64_t bytes_out = UINT64_MAX;
781 for (int i = 0; i < k->ks_ndata; ++i) {
782 kstat_named_t* data = &reinterpret_cast<kstat_named_t*>(k->ks_data)[i];
783 if (strcmp(data->name, "rbytes64") == 0) {
784 bytes_in = data->value.ui64;
785 }
786 else if (strcmp(data->name, "obytes64") == 0) {
787 bytes_out = data->value.ui64;
788 }
789 }
790
791 if ((bytes_in != UINT64_MAX) && (bytes_out != UINT64_MAX)) {
792 NetworkInterface* cur = new NetworkInterface(k->ks_name, bytes_in, bytes_out, ret);
793 ret = cur;
794 }
795 }
796
797 kstat_close(ctl);
798 *network_interfaces = ret;
799
800 return OS_OK;
801 }
802
803 NetworkPerformanceInterface::NetworkPerformanceInterface() {
804 _impl = NULL;
805 }
806
807 NetworkPerformanceInterface::~NetworkPerformanceInterface() {
808 if (_impl != NULL) {
809 delete _impl;
810 }
811 }
812
813 bool NetworkPerformanceInterface::initialize() {
814 _impl = new NetworkPerformanceInterface::NetworkPerformance();
815 return _impl->initialize();
816 }
817
818 int NetworkPerformanceInterface::network_utilization(NetworkInterface** network_interfaces) const {
819 return _impl->network_utilization(network_interfaces);
820 }