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 0;
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 0;
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_get_available_memory(void)119 uint64_t uv_get_available_memory(void) {
120 return uv_get_free_memory();
121 }
122
123
uv_loadavg(double avg[3])124 void uv_loadavg(double avg[3]) {
125 struct loadavg info;
126 size_t size = sizeof(info);
127 int which[] = {CTL_VM, VM_LOADAVG};
128
129 if (sysctl(which, ARRAY_SIZE(which), &info, &size, NULL, 0) < 0) return;
130
131 avg[0] = (double) info.ldavg[0] / info.fscale;
132 avg[1] = (double) info.ldavg[1] / info.fscale;
133 avg[2] = (double) info.ldavg[2] / info.fscale;
134 }
135
136
uv_resident_set_memory(size_t * rss)137 int uv_resident_set_memory(size_t* rss) {
138 struct kinfo_proc kinfo;
139 size_t page_size;
140 size_t kinfo_size;
141 int mib[4];
142
143 mib[0] = CTL_KERN;
144 mib[1] = KERN_PROC;
145 mib[2] = KERN_PROC_PID;
146 mib[3] = getpid();
147
148 kinfo_size = sizeof(kinfo);
149
150 if (sysctl(mib, ARRAY_SIZE(mib), &kinfo, &kinfo_size, NULL, 0))
151 return UV__ERR(errno);
152
153 page_size = getpagesize();
154
155 #ifdef __DragonFly__
156 *rss = kinfo.kp_vm_rssize * page_size;
157 #else
158 *rss = kinfo.ki_rssize * page_size;
159 #endif
160
161 return 0;
162 }
163
164
uv_uptime(double * uptime)165 int uv_uptime(double* uptime) {
166 int r;
167 struct timespec sp;
168 r = clock_gettime(CLOCK_MONOTONIC, &sp);
169 if (r)
170 return UV__ERR(errno);
171
172 *uptime = sp.tv_sec;
173 return 0;
174 }
175
176
uv_cpu_info(uv_cpu_info_t ** cpu_infos,int * count)177 int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
178 unsigned int ticks = (unsigned int)sysconf(_SC_CLK_TCK),
179 multiplier = ((uint64_t)1000L / ticks), cpuspeed, maxcpus,
180 cur = 0;
181 uv_cpu_info_t* cpu_info;
182 const char* maxcpus_key;
183 const char* cptimes_key;
184 const char* model_key;
185 char model[512];
186 long* cp_times;
187 int numcpus;
188 size_t size;
189 int i;
190
191 #if defined(__DragonFly__)
192 /* This is not quite correct but DragonFlyBSD doesn't seem to have anything
193 * comparable to kern.smp.maxcpus or kern.cp_times (kern.cp_time is a total,
194 * not per CPU). At least this stops uv_cpu_info() from failing completely.
195 */
196 maxcpus_key = "hw.ncpu";
197 cptimes_key = "kern.cp_time";
198 #else
199 maxcpus_key = "kern.smp.maxcpus";
200 cptimes_key = "kern.cp_times";
201 #endif
202
203 #if defined(__arm__) || defined(__aarch64__)
204 /* The key hw.model and hw.clockrate are not available on FreeBSD ARM. */
205 model_key = "hw.machine";
206 cpuspeed = 0;
207 #else
208 model_key = "hw.model";
209
210 size = sizeof(cpuspeed);
211 if (sysctlbyname("hw.clockrate", &cpuspeed, &size, NULL, 0))
212 return -errno;
213 #endif
214
215 size = sizeof(model);
216 if (sysctlbyname(model_key, &model, &size, NULL, 0))
217 return UV__ERR(errno);
218
219 size = sizeof(numcpus);
220 if (sysctlbyname("hw.ncpu", &numcpus, &size, NULL, 0))
221 return UV__ERR(errno);
222
223 *cpu_infos = uv__malloc(numcpus * sizeof(**cpu_infos));
224 if (!(*cpu_infos))
225 return UV_ENOMEM;
226
227 *count = numcpus;
228
229 /* kern.cp_times on FreeBSD i386 gives an array up to maxcpus instead of
230 * ncpu.
231 */
232 size = sizeof(maxcpus);
233 if (sysctlbyname(maxcpus_key, &maxcpus, &size, NULL, 0)) {
234 uv__free(*cpu_infos);
235 return UV__ERR(errno);
236 }
237
238 size = maxcpus * CPUSTATES * sizeof(long);
239
240 cp_times = uv__malloc(size);
241 if (cp_times == NULL) {
242 uv__free(*cpu_infos);
243 return UV_ENOMEM;
244 }
245
246 if (sysctlbyname(cptimes_key, cp_times, &size, NULL, 0)) {
247 uv__free(cp_times);
248 uv__free(*cpu_infos);
249 return UV__ERR(errno);
250 }
251
252 for (i = 0; i < numcpus; i++) {
253 cpu_info = &(*cpu_infos)[i];
254
255 cpu_info->cpu_times.user = (uint64_t)(cp_times[CP_USER+cur]) * multiplier;
256 cpu_info->cpu_times.nice = (uint64_t)(cp_times[CP_NICE+cur]) * multiplier;
257 cpu_info->cpu_times.sys = (uint64_t)(cp_times[CP_SYS+cur]) * multiplier;
258 cpu_info->cpu_times.idle = (uint64_t)(cp_times[CP_IDLE+cur]) * multiplier;
259 cpu_info->cpu_times.irq = (uint64_t)(cp_times[CP_INTR+cur]) * multiplier;
260
261 cpu_info->model = uv__strdup(model);
262 cpu_info->speed = cpuspeed;
263
264 cur+=CPUSTATES;
265 }
266
267 uv__free(cp_times);
268 return 0;
269 }
270
271
272 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)273 uv__fs_copy_file_range(int fd_in,
274 off_t* off_in,
275 int fd_out,
276 off_t* off_out,
277 size_t len,
278 unsigned int flags)
279 {
280 #if __FreeBSD__ >= 13 && !defined(__DragonFly__)
281 return copy_file_range(fd_in, off_in, fd_out, off_out, len, flags);
282 #else
283 return errno = ENOSYS, -1;
284 #endif
285 }
286
