tDarwin.c - plan9port - [fork] Plan 9 from user space
HTML git clone git://src.adamsgaard.dk/plan9port
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
tDarwin.c (10102B)
---
1 #include <u.h>
2 #include <sys/types.h>
3 #include <sys/protosw.h>
4 #include <sys/socket.h>
5 #include <sys/sysctl.h>
6 #include <sys/time.h>
7 #include <sys/dkstat.h>
8 #include <net/if.h>
9 #include <net/if_var.h>
10 #include <net/if_dl.h>
11 #include <net/if_types.h>
12 #include <ifaddrs.h>
13 #include <sys/ioctl.h>
14 #include <limits.h>
15 #include <libc.h>
16 #include <bio.h>
17
18 #include <mach/mach.h>
19 #include <mach/mach_time.h>
20 #include <CoreFoundation/CoreFoundation.h>
21 #include <IOKit/ps/IOPowerSources.h>
22 AUTOFRAMEWORK(CoreFoundation)
23 AUTOFRAMEWORK(IOKit)
24
25 #include "dat.h"
26
27 typedef struct Sample Sample;
28
29 struct Sample
30 {
31 uint seq;
32 host_cpu_load_info_data_t cpu, p_cpu;
33 vm_size_t pgsize;
34 double divisor;
35 uint64_t time, p_time;
36 vm_statistics_data_t vm_stat, p_vm_stat;
37 boolean_t purgeable_is_valid;
38 #ifdef VM_SWAPUSAGE /* 10.4+ */
39 struct xsw_usage xsu;
40 #endif
41 boolean_t xsu_valid;
42 integer_t syscalls_mach, p_syscalls_mach;
43 integer_t syscalls_unix, p_syscalls_unix;
44 ulong csw, p_csw;
45 uint net_ifaces;
46 uvlong net_ipackets, p_net_ipackets;
47 uvlong net_opackets, p_net_opackets;
48 uvlong net_ibytes, p_net_ibytes;
49 uvlong net_obytes, p_net_obytes;
50 uvlong net_errors, p_net_errors;
51 ulong usecs;
52 };
53
54 static Sample sample;
55
56 void xsample(int);
57 void xapm(int);
58 void xloadavg(int);
59 void xcpu(int);
60 void xswap(int);
61 void xvm(int);
62 void xnet(int);
63
64 void (*statfn[])(int) =
65 {
66 xsample,
67 xapm,
68 xloadavg,
69 xswap,
70 xcpu,
71 xvm,
72 xnet,
73 0
74 };
75
76 static mach_port_t stat_port;
77
78 void
79 sampleinit(void)
80 {
81 mach_timebase_info_data_t info;
82
83 if(stat_port)
84 return;
85
86 stat_port = mach_host_self();
87 memset(&sample, 0, sizeof sample);
88 if(host_page_size(stat_port, &sample.pgsize) != KERN_SUCCESS)
89 sample.pgsize = 4096;
90
91 /* populate clock tick info for timestamps */
92 mach_timebase_info(&info);
93 sample.divisor = 1000.0 * (double)info.denom/info.numer;
94 sample.time = mach_absolute_time();
95 }
96
97 void
98 samplenet(void)
99 {
100 struct ifaddrs *ifa_list, *ifa;
101 struct if_data *if_data;
102
103 ifa_list = nil;
104 sample.net_ifaces = 0;
105 if(getifaddrs(&ifa_list) == 0){
106 sample.p_net_ipackets = sample.net_ipackets;
107 sample.p_net_opackets = sample.net_opackets;
108 sample.p_net_ibytes = sample.net_ibytes;
109 sample.p_net_obytes = sample.net_obytes;
110 sample.p_net_errors = sample.net_errors;
111
112 sample.net_ipackets = 0;
113 sample.net_opackets = 0;
114 sample.net_ibytes = 0;
115 sample.net_obytes = 0;
116 sample.net_errors = 0;
117 sample.net_ifaces = 0;
118
119 for(ifa=ifa_list; ifa; ifa=ifa->ifa_next){
120 if(ifa->ifa_addr->sa_family != AF_LINK)
121 continue;
122 if((ifa->ifa_flags&(IFF_UP|IFF_RUNNING)) == 0)
123 continue;
124 if(ifa->ifa_data == nil)
125 continue;
126 if(strncmp(ifa->ifa_name, "lo", 2) == 0) /* loopback */
127 continue;
128
129 if_data = (struct if_data*)ifa->ifa_data;
130 sample.net_ipackets += if_data->ifi_ipackets;
131 sample.net_opackets += if_data->ifi_opackets;
132 sample.net_ibytes += if_data->ifi_ibytes;
133 sample.net_obytes += if_data->ifi_obytes;
134 sample.net_errors += if_data->ifi_ierrors + if_data->ifi_oerrors;
135 sample.net_ifaces++;
136 }
137 freeifaddrs(ifa_list);
138 }
139 }
140
141
142 /*
143 * The following forces the program to be run with the suid root as
144 * all the other stat monitoring apps get set:
145 *
146 * -rwsr-xr-x 1 root wheel 83088 Mar 20 2005 /usr/bin/top
147 * -rwsrwxr-x 1 root admin 54048 Mar 20 2005
148 * /Applications/Utilities/Activity Monitor.app/Contents/Resources/pmTool
149 *
150 * If Darwin eventually encompases more into sysctl then this
151 * won't be required.
152 */
153 void
154 sampleevents(void)
155 {
156 uint i, j, pcnt, tcnt;
157 mach_msg_type_number_t count;
158 kern_return_t error;
159 processor_set_t *psets, pset;
160 task_t *tasks;
161 task_events_info_data_t events;
162
163 if((error = host_processor_sets(stat_port, &psets, &pcnt)) != KERN_SUCCESS){
164 Bprint(&bout, "host_processor_sets: %s (make sure auxstats is setuid root)\n",
165 mach_error_string(error));
166 return;
167 }
168
169 sample.p_syscalls_mach = sample.syscalls_mach;
170 sample.p_syscalls_unix = sample.syscalls_unix;
171 sample.p_csw = sample.csw;
172
173 sample.syscalls_mach = 0;
174 sample.syscalls_unix = 0;
175 sample.csw = 0;
176
177 for(i=0; i<pcnt; i++){
178 if((error=host_processor_set_priv(stat_port, psets[i], &pset)) != KERN_SUCCESS){
179 Bprint(&bout, "host_processor_set_priv: %s\n", mach_error_string(error));
180 return;
181 }
182 if((error=processor_set_tasks(pset, &tasks, &tcnt)) != KERN_SUCCESS){
183 Bprint(&bout, "processor_set_tasks: %s\n", mach_error_string(error));
184 return;
185 }
186 for(j=0; j<tcnt; j++){
187 count = TASK_EVENTS_INFO_COUNT;
188 if(task_info(tasks[j], TASK_EVENTS_INFO, (task_info_t)&events, &count) == KERN_SUCCESS){
189 sample.syscalls_mach += events.syscalls_mach;
190 sample.syscalls_unix += events.syscalls_unix;
191 sample.csw += events.csw;
192 }
193
194 if(tasks[j] != mach_task_self())
195 mach_port_deallocate(mach_task_self(), tasks[j]);
196 }
197
198 if((error = vm_deallocate((vm_map_t)mach_task_self(),
199 (vm_address_t)tasks, tcnt*sizeof(task_t))) != KERN_SUCCESS){
200 Bprint(&bout, "vm_deallocate: %s\n", mach_error_string(error));
201 return;
202 }
203
204 if((error = mach_port_deallocate(mach_task_self(), pset)) != KERN_SUCCESS
205 || (error = mach_port_deallocate(mach_task_self(), psets[i])) != KERN_SUCCESS){
206 Bprint(&bout, "mach_port_deallocate: %s\n", mach_error_string(error));
207 return;
208 }
209 }
210
211 if((error = vm_deallocate((vm_map_t)mach_task_self(), (vm_address_t)psets,
212 pcnt*sizeof(processor_set_t))) != KERN_SUCCESS){
213 Bprint(&bout, "vm_deallocate: %s\n", mach_error_string(error));
214 return;
215 }
216 }
217
218 void
219 xsample(int first)
220 {
221 int mib[2];
222 mach_msg_type_number_t count;
223 size_t len;
224
225 if(first){
226 sampleinit();
227 return;
228 }
229
230 sample.seq++;
231 sample.p_time = sample.time;
232 sample.time = mach_absolute_time();
233
234 sample.p_vm_stat = sample.vm_stat;
235 count = sizeof(sample.vm_stat) / sizeof(natural_t);
236 host_statistics(stat_port, HOST_VM_INFO, (host_info_t)&sample.vm_stat, &count);
237
238 if(sample.seq == 1)
239 sample.p_vm_stat = sample.vm_stat;
240
241 #ifdef VM_SWAPUSAGE
242 mib[0] = CTL_VM;
243 mib[1] = VM_SWAPUSAGE;
244 len = sizeof sample.xsu;
245 sample.xsu_valid = TRUE;
246 if(sysctl(mib, 2, &sample.xsu, &len, NULL, 0) < 0 && errno == ENOENT)
247 sample.xsu_valid = FALSE;
248 #endif
249
250 samplenet();
251 sampleevents();
252
253 sample.p_cpu = sample.cpu;
254 count = HOST_CPU_LOAD_INFO_COUNT;
255 host_statistics(stat_port, HOST_CPU_LOAD_INFO, (host_info_t)&sample.cpu, &count);
256 sample.usecs = (double)(sample.time - sample.p_time)/sample.divisor;
257 Bprint(&bout, "usecs %lud\n", sample.usecs);
258 }
259
260 void
261 xapm(int first)
262 {
263 int i, battery;
264 CFArrayRef array;
265 CFDictionaryRef dict;
266 CFTypeRef cf, src, value;
267
268 if(first)
269 return;
270
271 src = IOPSCopyPowerSourcesInfo();
272 array = IOPSCopyPowerSourcesList(src);
273
274 for(i=0; i<CFArrayGetCount(array); i++){
275 cf = CFArrayGetValueAtIndex(array, i);
276 dict = IOPSGetPowerSourceDescription(src, cf);
277 if(dict != nil){
278 value = CFDictionaryGetValue(dict, CFSTR("Current Capacity"));
279 if(value != nil){
280 if(!CFNumberGetValue(value, kCFNumberIntType, &battery))
281 battery = 100;
282 Bprint(&bout, "battery =%d 100\n", battery);
283 break;
284 }
285 }
286 }
287
288 CFRelease(array);
289 CFRelease(src);
290 }
291
292 void
293 xnet(int first)
294 {
295 uint n;
296 ulong err, in, inb, out, outb;
297
298 n = sample.net_ifaces;
299 in = sample.net_ipackets - sample.p_net_ipackets;
300 out = sample.net_opackets - sample.p_net_opackets;
301 inb = sample.net_ibytes - sample.p_net_ibytes;
302 outb = sample.net_obytes - sample.p_net_obytes;
303 err = sample.net_errors - sample.p_net_errors;
304
305 Bprint(&bout, "etherb %lud %d\n", inb+outb, n*1000000);
306 Bprint(&bout, "ether %lud %d\n", in+out, n*1000);
307 Bprint(&bout, "ethererr %lud %d\n", err, n*1000);
308 Bprint(&bout, "etherin %lud %d\n", in, n*1000);
309 Bprint(&bout, "etherout %lud %d\n", out, n*1000);
310 Bprint(&bout, "etherinb %lud %d\n", inb, n*1000);
311 Bprint(&bout, "etheroutb %lud %d\n", outb, n*1000);
312 }
313
314 int
315 rsys(char *name, char *buf, int len)
316 {
317 size_t l;
318
319 l = len;
320 if(sysctlbyname(name, buf, &l, nil, 0) < 0)
321 return -1;
322 buf[l] = 0;
323 return l;
324 }
325
326 vlong
327 isys(char *name)
328 {
329 ulong u;
330 size_t l;
331
332 l = sizeof u;
333 if(sysctlbyname(name, &u, &l, nil, 0) < 0)
334 return 0;
335 return u;
336 }
337
338 void
339 xvm(int first)
340 {
341 natural_t total, active;
342
343 if(first)
344 return;
345
346 total = sample.vm_stat.free_count
347 + sample.vm_stat.active_count
348 + sample.vm_stat.inactive_count
349 + sample.vm_stat.wire_count;
350
351 active = sample.vm_stat.active_count
352 + sample.vm_stat.inactive_count
353 + sample.vm_stat.wire_count;
354
355 if(total)
356 Bprint(&bout, "mem =%lud %lud\n", active, total);
357
358 Bprint(&bout, "context %lld 1000\n", (vlong)sample.csw);
359 Bprint(&bout, "syscall %lld 1000\n", (vlong)sample.syscalls_mach+sample.syscalls_unix);
360 Bprint(&bout, "intr %lld 1000\n",
361 isys("vm.stats.sys.v_intr")
362 +isys("vm.stats.sys.v_trap"));
363
364 Bprint(&bout, "fault %lld 1000\n", sample.vm_stat.faults);
365 Bprint(&bout, "fork %lld 1000\n",
366 isys("vm.stats.vm.v_rforks")
367 +isys("vm.stats.vm.v_vforks"));
368
369 /* Bprint(&bout, "hits %lud of %lud lookups (%d%% hit rate)\n", */
370 /* (asamp.vm_stat.hits), */
371 /* (asamp.vm_stat.lookups), */
372 /* (natural_t)(((double)asamp.vm_stat.hits*100)/ (double)asamp.vm_stat.lookups)); */
373 }
374
375 void
376 xcpu(int first)
377 {
378 ulong user, sys, idle, nice, t;
379
380 if(first)
381 return;
382
383 sys = sample.cpu.cpu_ticks[CPU_STATE_SYSTEM] -
384 sample.p_cpu.cpu_ticks[CPU_STATE_SYSTEM];
385 idle = sample.cpu.cpu_ticks[CPU_STATE_IDLE] -
386 sample.p_cpu.cpu_ticks[CPU_STATE_IDLE];
387 user = sample.cpu.cpu_ticks[CPU_STATE_USER] -
388 sample.p_cpu.cpu_ticks[CPU_STATE_USER];
389 nice = sample.cpu.cpu_ticks[CPU_STATE_NICE] -
390 sample.p_cpu.cpu_ticks[CPU_STATE_NICE];
391
392 t = sys+idle+user+nice;
393
394 Bprint(&bout, "user =%lud %lud\n", user, t);
395 Bprint(&bout, "sys =%lud %lud\n", sys, t);
396 Bprint(&bout, "idle =%lud %lud\n", idle, t);
397 Bprint(&bout, "nice =%lud %lud\n", nice, t);
398 }
399
400 void
401 xloadavg(int first)
402 {
403 double l[3];
404
405 if(first)
406 return;
407
408 if(getloadavg(l, 3) < 0)
409 return;
410 Bprint(&bout, "load %d 1000\n", (int)(l[0]*1000.0));
411 }
412
413 void
414 xswap(int first)
415 {
416 if(first)
417 return;
418
419 #ifdef VM_SWAPUSAGE
420 if(sample.xsu_valid)
421 Bprint(&bout, "swap %lld %lld\n",
422 (vlong)sample.xsu.xsu_used,
423 (vlong)sample.xsu.xsu_total);
424 #endif
425 }