tFreeBSD.c - plan9port - [fork] Plan 9 from user space
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tFreeBSD.c (4957B)
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1 #include <u.h>
2 #include <kvm.h>
3 #include <nlist.h>
4 #include <sys/types.h>
5 #include <sys/protosw.h>
6 #include <sys/socket.h>
7 #include <sys/sysctl.h>
8 #include <sys/time.h>
9 #include <sys/dkstat.h>
10 #include <net/if.h>
11 #include <net/if_var.h>
12 #include <net/if_dl.h>
13 #include <net/if_types.h>
14 #if __FreeBSD_version < 600000
15 #include <machine/apm_bios.h>
16 #endif
17 #include <sys/ioctl.h>
18 #include <limits.h>
19 #include <libc.h>
20 #include <bio.h>
21 #include <ifaddrs.h>
22 #include "dat.h"
23
24 void xapm(int);
25 void xloadavg(int);
26 void xcpu(int);
27 void xswap(int);
28 void xsysctl(int);
29 void xnet(int);
30 void xkvm(int);
31
32 void (*statfn[])(int) =
33 {
34 xkvm,
35 xapm,
36 xloadavg,
37 xswap,
38 xcpu,
39 xsysctl,
40 xnet,
41 0
42 };
43
44 static kvm_t *kvm;
45
46 static struct nlist nl[] = {
47 { "_cp_time" },
48 { "" }
49 };
50
51 void
52 kvminit(void)
53 {
54 char buf[_POSIX2_LINE_MAX];
55
56 if(kvm)
57 return;
58 kvm = kvm_openfiles(nil, nil, nil, OREAD, buf);
59 if(kvm == nil)
60 return;
61 if(kvm_nlist(kvm, nl) < 0 || nl[0].n_type == 0){
62 kvm = nil;
63 return;
64 }
65 }
66
67 void
68 xkvm(int first)
69 {
70 if(first)
71 kvminit();
72 }
73
74 int
75 kread(ulong addr, char *buf, int size)
76 {
77 if(kvm_read(kvm, addr, buf, size) != size){
78 memset(buf, 0, size);
79 return -1;
80 }
81 return size;
82 }
83
84 void
85 xnet(int first)
86 {
87 struct ifaddrs *ifap, *ifa;
88 ulong out, in, outb, inb, err;
89
90 if(first)
91 return;
92
93 if (getifaddrs(&ifap) != 0)
94 return;
95
96 out = in = outb = inb = err = 0;
97 #define IFA_STAT(s) (((struct if_data *)ifa->ifa_data)->ifi_ ## s)
98 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
99 if (ifa->ifa_addr->sa_family != AF_LINK)
100 continue;
101 out += IFA_STAT(opackets);
102 in += IFA_STAT(ipackets);
103 outb += IFA_STAT(obytes);
104 inb += IFA_STAT(ibytes);
105 err += IFA_STAT(oerrors) + IFA_STAT(ierrors);
106 }
107 freeifaddrs(ifap);
108
109 Bprint(&bout, "etherin %lud 1000\n", in);
110 Bprint(&bout, "etherout %lud 1000\n", out);
111 Bprint(&bout, "etherinb %lud 1000000\n", inb);
112 Bprint(&bout, "etheroutb %lud 1000000\n", outb);
113 Bprint(&bout, "ethererr %lud 1000\n", err);
114 Bprint(&bout, "ether %lud 1000\n", in+out);
115 Bprint(&bout, "etherb %lud 1000000\n", inb+outb);
116 }
117
118 #if __FreeBSD_version >= 500000
119 int
120 xacpi(int first)
121 {
122 int rv;
123 int val;
124 size_t len;
125
126 len = sizeof(val);
127 rv = sysctlbyname("hw.acpi.battery.life", &val, &len, nil, 0);
128 if(rv != 0)
129 return -1;
130 Bprint(&bout, "battery =%d 100\n", val);
131 return 0;
132 }
133 #else
134 int
135 xacpi(int first)
136 {
137 return -1;
138 }
139 #endif
140
141 #if __FreeBSD_version < 600000
142 void
143 xapm(int first)
144 {
145 static int fd;
146 struct apm_info ai;
147
148 if(first){
149 xacpi(first);
150 fd = open("/dev/apm", OREAD);
151 return;
152 }
153
154 if(xacpi(0) >= 0)
155 return;
156
157 if(ioctl(fd, APMIO_GETINFO, &ai) < 0)
158 return;
159
160 if(ai.ai_batt_life <= 100)
161 Bprint(&bout, "battery =%d 100\n", ai.ai_batt_life);
162 }
163 #else
164 void
165 xapm(int first)
166 {
167 xacpi(first);
168 }
169 #endif
170
171 int
172 rsys(char *name, char *buf, int len)
173 {
174 size_t l;
175
176 l = len;
177 if(sysctlbyname(name, buf, &l, nil, 0) < 0)
178 return -1;
179 buf[l] = 0;
180 return l;
181 }
182
183 vlong
184 isys(char *name)
185 {
186 ulong u;
187 size_t l;
188
189 l = sizeof u;
190 if(sysctlbyname(name, &u, &l, nil, 0) < 0)
191 return -1;
192 return u;
193 }
194
195 void
196 xsysctl(int first)
197 {
198 static int pgsize;
199
200 if(first){
201 pgsize = isys("vm.stats.vm.v_page_size");
202 if(pgsize == 0)
203 pgsize = 4096;
204 }
205
206 Bprint(&bout, "mem =%lld %lld\n",
207 isys("vm.stats.vm.v_active_count")*pgsize,
208 isys("vm.stats.vm.v_page_count")*pgsize);
209 Bprint(&bout, "context %lld 1000\n", isys("vm.stats.sys.v_swtch"));
210 Bprint(&bout, "syscall %lld 1000\n", isys("vm.stats.sys.v_syscall"));
211 Bprint(&bout, "intr %lld 1000\n", isys("vm.stats.sys.v_intr")+isys("vm.stats.sys.v_trap"));
212 Bprint(&bout, "fault %lld 1000\n", isys("vm.stats.vm.v_vm_faults"));
213 Bprint(&bout, "fork %lld 1000\n", isys("vm.stats.vm.v_forks")
214 +isys("vm.stats.vm.v_rforks")
215 +isys("vm.stats.vm.v_vforks"));
216 }
217
218 void
219 xcpu(int first)
220 {
221 static int stathz;
222 union {
223 ulong x[20];
224 struct clockinfo ci;
225 } u;
226 int n;
227
228 if(first){
229 if(rsys("kern.clockrate", (char*)u.x, sizeof u.x) < sizeof u.ci)
230 stathz = 128;
231 else
232 stathz = u.ci.stathz;
233 return;
234 }
235
236 if((n=rsys("kern.cp_time", (char*)u.x, sizeof u.x)) < 5*sizeof(ulong))
237 return;
238
239 Bprint(&bout, "user %lud %d\n", u.x[CP_USER]+u.x[CP_NICE], stathz);
240 Bprint(&bout, "sys %lud %d\n", u.x[CP_SYS], stathz);
241 Bprint(&bout, "cpu %lud %d\n", u.x[CP_USER]+u.x[CP_NICE]+u.x[CP_SYS], stathz);
242 Bprint(&bout, "idle %lud %d\n", u.x[CP_IDLE], stathz);
243 }
244
245 void
246 xloadavg(int first)
247 {
248 double l[3];
249
250 if(first)
251 return;
252
253 if(getloadavg(l, 3) < 0)
254 return;
255 Bprint(&bout, "load =%d 1000\n", (int)(l[0]*1000.0));
256 }
257
258 void
259 xswap(int first)
260 {
261 static struct kvm_swap s;
262 static ulong pgin, pgout;
263 int i, o;
264 static int pgsize;
265
266 if(first){
267 pgsize = getpagesize();
268 if(pgsize == 0)
269 pgsize = 4096;
270 return;
271 }
272
273 if(kvm == nil)
274 return;
275
276 i = isys("vm.stats.vm.v_swappgsin");
277 o = isys("vm.stats.vm.v_swappgsout");
278 if(i != pgin || o != pgout){
279 pgin = i;
280 pgout = o;
281 kvm_getswapinfo(kvm, &s, 1, 0);
282 }
283
284
285 Bprint(&bout, "swap =%lld %lld\n", s.ksw_used*(vlong)pgsize, s.ksw_total*(vlong)pgsize);
286 }