1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
2 * Permission is hereby granted, free of charge, to any person obtaining a copy
3 * of this software and associated documentation files (the "Software"), to
4 * deal in the Software without restriction, including without limitation the
5 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
6 * sell copies of the Software, and to permit persons to whom the Software is
7 * furnished to do so, subject to the following conditions:
8 *
9 * The above copyright notice and this permission notice shall be included in
10 * all copies or substantial portions of the Software.
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
15 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
16 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
17 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
18 * IN THE SOFTWARE.
19 */
20
21 #include "uv.h"
22 #include "internal.h"
23
24 #include <assert.h>
25 #include <string.h>
26 #include <errno.h>
27
28 #include <paths.h>
29 #include <sys/user.h>
30 #include <sys/types.h>
31 #include <sys/resource.h>
32 #include <sys/sysctl.h>
33 #include <vm/vm_param.h> /* VM_LOADAVG */
34 #include <time.h>
35 #include <stdlib.h>
36 #include <unistd.h> /* sysconf */
37 #include <fcntl.h>
38
39 #ifndef CPUSTATES
40 # define CPUSTATES 5U
41 #endif
42 #ifndef CP_USER
43 # define CP_USER 0
44 # define CP_NICE 1
45 # define CP_SYS 2
46 # define CP_IDLE 3
47 # define CP_INTR 4
48 #endif
49
50
uv__platform_loop_init(uv_loop_t * loop)51 int uv__platform_loop_init(uv_loop_t* loop) {
52 return uv__kqueue_init(loop);
53 }
54
55
uv__platform_loop_delete(uv_loop_t * loop)56 void uv__platform_loop_delete(uv_loop_t* loop) {
57 }
58
uv_exepath(char * buffer,size_t * size)59 int uv_exepath(char* buffer, size_t* size) {
60 char abspath[PATH_MAX * 2 + 1];
61 int mib[4];
62 size_t abspath_size;
63
64 if (buffer == NULL || size == NULL || *size == 0)
65 return UV_EINVAL;
66
67 mib[0] = CTL_KERN;
68 mib[1] = KERN_PROC;
69 mib[2] = KERN_PROC_PATHNAME;
70 mib[3] = -1;
71
72 abspath_size = sizeof abspath;
73 if (sysctl(mib, ARRAY_SIZE(mib), abspath, &abspath_size, NULL, 0))
74 return UV__ERR(errno);
75
76 assert(abspath_size > 0);
77 abspath_size -= 1;
78 *size -= 1;
79
80 if (*size > abspath_size)
81 *size = abspath_size;
82
83 memcpy(buffer, abspath, *size);
84 buffer[*size] = '\0';
85
86 return 0;
87 }
88
uv_get_free_memory(void)89 uint64_t uv_get_free_memory(void) {
90 int freecount;
91 size_t size = sizeof(freecount);
92
93 if (sysctlbyname("vm.stats.vm.v_free_count", &freecount, &size, NULL, 0))
94 return UV__ERR(errno);
95
96 return (uint64_t) freecount * sysconf(_SC_PAGESIZE);
97
98 }
99
100
uv_get_total_memory(void)101 uint64_t uv_get_total_memory(void) {
102 unsigned long info;
103 int which[] = {CTL_HW, HW_PHYSMEM};
104
105 size_t size = sizeof(info);
106
107 if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0))
108 return UV__ERR(errno);
109
110 return (uint64_t) info;
111 }
112
113
uv_get_constrained_memory(void)114 uint64_t uv_get_constrained_memory(void) {
115 return 0; /* Memory constraints are unknown. */
116 }
117
118
uv_loadavg(double avg[3])119 void uv_loadavg(double avg[3]) {
120 struct loadavg info;
121 size_t size = sizeof(info);
122 int which[] = {CTL_VM, VM_LOADAVG};
123
124 if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return;
125
126 avg[0] = (double) info.ldavg[0] / info.fscale;
127 avg[1] = (double) info.ldavg[1] / info.fscale;
128 avg[2] = (double) info.ldavg[2] / info.fscale;
129 }
130
131
uv_resident_set_memory(size_t * rss)132 int uv_resident_set_memory(size_t* rss) {
133 struct kinfo_proc kinfo;
134 size_t page_size;
135 size_t kinfo_size;
136 int mib[4];
137
138 mib[0] = CTL_KERN;
139 mib[1] = KERN_PROC;
140 mib[2] = KERN_PROC_PID;
141 mib[3] = getpid();
142
143 kinfo_size = sizeof(kinfo);
144
145 if (sysctl(mib, ARRAY_SIZE(mib), &kinfo, &kinfo_size, NULL, 0))
146 return UV__ERR(errno);
147
148 page_size = getpagesize();
149
150 #ifdef __DragonFly__
151 *rss = kinfo.kp_vm_rssize * page_size;
152 #else
153 *rss = kinfo.ki_rssize * page_size;
154 #endif
155
156 return 0;
157 }
158
159
uv_uptime(double * uptime)160 int uv_uptime(double* uptime) {
161 int r;
162 struct timespec sp;
163 r = clock_gettime(CLOCK_MONOTONIC, &sp);
164 if (r)
165 return UV__ERR(errno);
166
167 *uptime = sp.tv_sec;
168 return 0;
169 }
170
171
uv_cpu_info(uv_cpu_info_t ** cpu_infos,int * count)172 int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
173 unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
174 multiplier = ((uint64_t)1000L / ticks), cpuspeed, maxcpus,
175 cur = 0;
176 uv_cpu_info_t* cpu_info;
177 const char* maxcpus_key;
178 const char* cptimes_key;
179 const char* model_key;
180 char model[512];
181 long* cp_times;
182 int numcpus;
183 size_t size;
184 int i;
185
186 #if defined(__DragonFly__)
187 /* This is not quite correct but DragonFlyBSD doesn't seem to have anything
188 * comparable to kern.smp.maxcpus or kern.cp_times (kern.cp_time is a total,
189 * not per CPU). At least this stops uv_cpu_info() from failing completely.
190 */
191 maxcpus_key = "hw.ncpu";
192 cptimes_key = "kern.cp_time";
193 #else
194 maxcpus_key = "kern.smp.maxcpus";
195 cptimes_key = "kern.cp_times";
196 #endif
197
198 #if defined(__arm__) || defined(__aarch64__)
199 /* The key hw.model and hw.clockrate are not available on FreeBSD ARM. */
200 model_key = "hw.machine";
201 cpuspeed = 0;
202 #else
203 model_key = "hw.model";
204
205 size = sizeof(cpuspeed);
206 if (sysctlbyname("hw.clockrate", &cpuspeed, &size, NULL, 0))
207 return -errno;
208 #endif
209
210 size = sizeof(model);
211 if (sysctlbyname(model_key, &model, &size, NULL, 0))
212 return UV__ERR(errno);
213
214 size = sizeof(numcpus);
215 if (sysctlbyname("hw.ncpu", &numcpus, &size, NULL, 0))
216 return UV__ERR(errno);
217
218 *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
219 if (!(*cpu_infos))
220 return UV_ENOMEM;
221
222 *count = numcpus;
223
224 /* kern.cp_times on FreeBSD i386 gives an array up to maxcpus instead of
225 * ncpu.
226 */
227 size = sizeof(maxcpus);
228 if (sysctlbyname(maxcpus_key, &maxcpus, &size, NULL, 0)) {
229 uv__free(*cpu_infos);
230 return UV__ERR(errno);
231 }
232
233 size = maxcpus * CPUSTATES * sizeof(long);
234
235 cp_times = uv__malloc(size);
236 if (cp_times == NULL) {
237 uv__free(*cpu_infos);
238 return UV_ENOMEM;
239 }
240
241 if (sysctlbyname(cptimes_key, cp_times, &size, NULL, 0)) {
242 uv__free(cp_times);
243 uv__free(*cpu_infos);
244 return UV__ERR(errno);
245 }
246
247 for (i = 0; i < numcpus; i++) {
248 cpu_info = &(*cpu_infos)[i];
249
250 cpu_info->cpu_times.user = (uint64_t)(cp_times[CP_USER+cur]) * multiplier;
251 cpu_info->cpu_times.nice = (uint64_t)(cp_times[CP_NICE+cur]) * multiplier;
252 cpu_info->cpu_times.sys = (uint64_t)(cp_times[CP_SYS+cur]) * multiplier;
253 cpu_info->cpu_times.idle = (uint64_t)(cp_times[CP_IDLE+cur]) * multiplier;
254 cpu_info->cpu_times.irq = (uint64_t)(cp_times[CP_INTR+cur]) * multiplier;
255
256 cpu_info->model = uv__strdup(model);
257 cpu_info->speed = cpuspeed;
258
259 cur+=CPUSTATES;
260 }
261
262 uv__free(cp_times);
263 return 0;
264 }
265
266
uv__sendmmsg(int fd,struct uv__mmsghdr * mmsg,unsigned int vlen)267 int uv__sendmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
268 #if __FreeBSD__ >= 11 && !defined(__DragonFly__)
269 return sendmmsg(fd,
270 (struct mmsghdr*) mmsg,
271 vlen,
272 0 /* flags */);
273 #else
274 return errno = ENOSYS, -1;
275 #endif
276 }
277
278
uv__recvmmsg(int fd,struct uv__mmsghdr * mmsg,unsigned int vlen)279 int uv__recvmmsg(int fd, struct uv__mmsghdr* mmsg, unsigned int vlen) {
280 #if __FreeBSD__ >= 11 && !defined(__DragonFly__)
281 return recvmmsg(fd,
282 (struct mmsghdr*) mmsg,
283 vlen,
284 0 /* flags */,
285 NULL /* timeout */);
286 #else
287 return errno = ENOSYS, -1;
288 #endif
289 }
290
291 ssize_t
uv__fs_copy_file_range(int fd_in,off_t * off_in,int fd_out,off_t * off_out,size_t len,unsigned int flags)292 uv__fs_copy_file_range(int fd_in,
293 off_t* off_in,
294 int fd_out,
295 off_t* off_out,
296 size_t len,
297 unsigned int flags)
298 {
299 #if __FreeBSD__ >= 13 && !defined(__DragonFly__)
300 return copy_file_range(fd_in, off_in, fd_out, off_out, len, flags);
301 #else
302 return errno = ENOSYS, -1;
303 #endif
304 }
305