git.maemo.org Git - monky/blob - src/freebsd.c

   1 /* Conky, a system monitor, based on torsmo
   2  *
   3  * Any original torsmo code is licensed under the BSD license
   4  *
   5  * All code written since the fork of torsmo is licensed under the GPL
   6  *
   7  * Please see COPYING for details
   8  *
   9  * Copyright (c) 2005-2008 Brenden Matthews, Philip Kovacs, et. al.
  10  *      (see AUTHORS)
  11  * All rights reserved.
  12  *
  13  * This program is free software: you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation, either version 3 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24  *
  25  * $Id$ */
  26
  27 #include <sys/dkstat.h>
  28 #include <sys/param.h>
  29 #include <sys/resource.h>
  30 #include <sys/socket.h>
  31 #include <sys/sysctl.h>
  32 #include <sys/time.h>
  33 #include <sys/types.h>
  34 #include <sys/vmmeter.h>
  35 #include <sys/user.h>
  36 #include <sys/ioctl.h>
  37
  38 #include <net/if.h>
  39 #include <net/if_mib.h>
  40 #include <net/if_media.h>
  41 #include <net/if_var.h>
  42 #include <netinet/in.h>
  43
  44 #include <devstat.h>
  45 #include <fcntl.h>
  46 #include <ifaddrs.h>
  47 #include <limits.h>
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <string.h>
  51 #include <unistd.h>
  52
  53 #include <dev/wi/if_wavelan_ieee.h>
  54
  55 #include "conky.h"
  56
  57 #define GETSYSCTL(name, var)    getsysctl(name, &(var), sizeof(var))
  58 #define KELVTOC(x)                              ((x - 2732) / 10.0)
  59 #define MAXSHOWDEVS                             16
  60
  61 #if 0
  62 #define FREEBSD_DEBUG
  63 #endif
  64
  65 inline void proc_find_top(struct process **cpu, struct process **mem);
  66
  67 u_int64_t diskio_prev = 0;
  68 static short cpu_setup = 0;
  69 static short diskio_setup = 0;
  70
  71 static int getsysctl(char *name, void *ptr, size_t len)
  72 {
  73         size_t nlen = len;
  74
  75         if (sysctlbyname(name, ptr, &nlen, NULL, 0) == -1) {
  76                 return -1;
  77         }
  78
  79         if (nlen != len) {
  80                 return -1;
  81         }
  82
  83         return 0;
  84 }
  85
  86 struct ifmibdata *data = NULL;
  87 size_t len = 0;
  88
  89 static int swapmode(unsigned long *retavail, unsigned long *retfree)
  90 {
  91         int n;
  92         unsigned long pagesize = getpagesize();
  93         struct kvm_swap swapary[1];
  94
  95         *retavail = 0;
  96         *retfree = 0;
  97
  98 #define CONVERT(v)      ((quad_t)(v) * (pagesize / 1024))
  99
 100         n = kvm_getswapinfo(kd, swapary, 1, 0);
 101         if (n < 0 || swapary[0].ksw_total == 0) {
 102                 return 0;
 103         }
 104
 105         *retavail = CONVERT(swapary[0].ksw_total);
 106         *retfree = CONVERT(swapary[0].ksw_total - swapary[0].ksw_used);
 107
 108         n = (int) ((double) swapary[0].ksw_used * 100.0 /
 109                 (double) swapary[0].ksw_total);
 110
 111         return n;
 112 }
 113
 114 void prepare_update()
 115 {
 116 }
 117
 118 void update_uptime()
 119 {
 120         int mib[2] = { CTL_KERN, KERN_BOOTTIME };
 121         struct timeval boottime;
 122         time_t now;
 123         size_t size = sizeof(boottime);
 124
 125         if ((sysctl(mib, 2, &boottime, &size, NULL, 0) != -1)
 126                         && (boottime.tv_sec != 0)) {
 127                 time(&now);
 128                 info.uptime = now - boottime.tv_sec;
 129         } else {
 130                 fprintf(stderr, "Could not get uptime\n");
 131                 info.uptime = 0;
 132         }
 133 }
 134
 135 int check_mount(char *s)
 136 {
 137         struct statfs *mntbuf;
 138         int i, mntsize;
 139
 140         mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
 141         for (i = mntsize - 1; i >= 0; i--) {
 142                 if (strcmp(mntbuf[i].f_mntonname, s) == 0) {
 143                         return 1;
 144                 }
 145         }
 146
 147         return 0;
 148 }
 149
 150 void update_meminfo()
 151 {
 152         unsigned long total_pages, inactive_pages, free_pages;
 153         unsigned long swap_avail, swap_free;
 154
 155         int pagesize = getpagesize();
 156
 157         if (GETSYSCTL("vm.stats.vm.v_page_count", total_pages)) {
 158                 fprintf(stderr, "Cannot read sysctl \"vm.stats.vm.v_page_count\"");
 159         }
 160
 161         if (GETSYSCTL("vm.stats.vm.v_free_count", free_pages)) {
 162                 fprintf(stderr, "Cannot read sysctl \"vm.stats.vm.v_free_count\"");
 163         }
 164
 165         if (GETSYSCTL("vm.stats.vm.v_inactive_count", inactive_pages)) {
 166                 fprintf(stderr, "Cannot read sysctl \"vm.stats.vm.v_inactive_count\"");
 167         }
 168
 169         info.memmax = total_pages * (pagesize >> 10);
 170         info.mem = (total_pages - free_pages - inactive_pages) * (pagesize >> 10);
 171
 172         if ((swapmode(&swap_avail, &swap_free)) >= 0) {
 173                 info.swapmax = swap_avail;
 174                 info.swap = (swap_avail - swap_free);
 175         } else {
 176                 info.swapmax = 0;
 177                 info.swap = 0;
 178         }
 179 }
 180
 181 void update_net_stats()
 182 {
 183         struct net_stat *ns;
 184         double delta;
 185         long long r, t, last_recv, last_trans;
 186         struct ifaddrs *ifap, *ifa;
 187         struct if_data *ifd;
 188
 189         /* get delta */
 190         delta = current_update_time - last_update_time;
 191         if (delta <= 0.0001) {
 192                 return;
 193         }
 194
 195         if (getifaddrs(&ifap) < 0) {
 196                 return;
 197         }
 198
 199         for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
 200                 ns = get_net_stat((const char *) ifa->ifa_name);
 201
 202                 if (ifa->ifa_flags & IFF_UP) {
 203                         struct ifaddrs *iftmp;
 204
 205                         ns->up = 1;
 206                         last_recv = ns->recv;
 207                         last_trans = ns->trans;
 208
 209                         if (ifa->ifa_addr->sa_family != AF_LINK) {
 210                                 continue;
 211                         }
 212
 213                         for (iftmp = ifa->ifa_next;
 214                                         iftmp != NULL && strcmp(ifa->ifa_name, iftmp->ifa_name) == 0;
 215                                         iftmp = iftmp->ifa_next) {
 216                                 if (iftmp->ifa_addr->sa_family == AF_INET) {
 217                                         memcpy(&(ns->addr), iftmp->ifa_addr,
 218                                                 iftmp->ifa_addr->sa_len);
 219                                 }
 220                         }
 221
 222                         ifd = (struct if_data *) ifa->ifa_data;
 223                         r = ifd->ifi_ibytes;
 224                         t = ifd->ifi_obytes;
 225
 226                         if (r < ns->last_read_recv) {
 227                                 ns->recv += ((long long) 4294967295U - ns->last_read_recv) + r;
 228                         } else {
 229                                 ns->recv += (r - ns->last_read_recv);
 230                         }
 231
 232                         ns->last_read_recv = r;
 233
 234                         if (t < ns->last_read_trans) {
 235                                 ns->trans += ((long long) 4294967295U -
 236                                         ns->last_read_trans) + t;
 237                         } else {
 238                                 ns->trans += (t - ns->last_read_trans);
 239                         }
 240
 241                         ns->last_read_trans = t;
 242
 243                         /* calculate speeds */
 244                         ns->recv_speed = (ns->recv - last_recv) / delta;
 245                         ns->trans_speed = (ns->trans - last_trans) / delta;
 246                 } else {
 247                         ns->up = 0;
 248                 }
 249         }
 250
 251         freeifaddrs(ifap);
 252 }
 253
 254 void update_total_processes()
 255 {
 256         int n_processes;
 257
 258         kvm_getprocs(kd, KERN_PROC_ALL, 0, &n_processes);
 259
 260         info.procs = n_processes;
 261 }
 262
 263 void update_running_processes()
 264 {
 265         struct kinfo_proc *p;
 266         int n_processes;
 267         int i, cnt = 0;
 268
 269         p = kvm_getprocs(kd, KERN_PROC_ALL, 0, &n_processes);
 270         for (i = 0; i < n_processes; i++) {
 271 #if (__FreeBSD__ < 5) && (__FreeBSD_kernel__ < 5)
 272                 if (p[i].kp_proc.p_stat == SRUN) {
 273 #else
 274                 if (p[i].ki_stat == SRUN) {
 275 #endif
 276                         cnt++;
 277                 }
 278         }
 279
 280         info.run_procs = cnt;
 281 }
 282
 283 struct cpu_load_struct {
 284         unsigned long load[5];
 285 };
 286
 287 struct cpu_load_struct fresh = { {0, 0, 0, 0, 0} };
 288 long cpu_used, oldtotal, oldused;
 289
 290 void get_cpu_count()
 291 {
 292         /* int cpu_count = 0; */
 293
 294         /* XXX: FreeBSD doesn't allow to get per CPU load stats on SMP machines.
 295          * It's possible to get a CPU count, but as we fulfill only
 296          * info.cpu_usage[0], it's better to report there's only one CPU.
 297          * It should fix some bugs (e.g. cpugraph) */
 298 #if 0
 299         if (GETSYSCTL("hw.ncpu", cpu_count) == 0) {
 300                 info.cpu_count = cpu_count;
 301         }
 302 #endif
 303         info.cpu_count = 1;
 304
 305         info.cpu_usage = malloc(info.cpu_count * sizeof(float));
 306         if (info.cpu_usage == NULL) {
 307                 CRIT_ERR("malloc");
 308         }
 309 }
 310
 311 /* XXX: SMP support */
 312 void update_cpu_usage()
 313 {
 314         long used, total;
 315         long cp_time[CPUSTATES];
 316         size_t len = sizeof(cp_time);
 317
 318         /* add check for !info.cpu_usage since that mem is freed on a SIGUSR1 */
 319         if ((cpu_setup == 0) || (!info.cpu_usage)) {
 320                 get_cpu_count();
 321                 cpu_setup = 1;
 322         }
 323
 324         if (sysctlbyname("kern.cp_time", &cp_time, &len, NULL, 0) < 0) {
 325                 fprintf(stderr, "Cannot get kern.cp_time");
 326         }
 327
 328         fresh.load[0] = cp_time[CP_USER];
 329         fresh.load[1] = cp_time[CP_NICE];
 330         fresh.load[2] = cp_time[CP_SYS];
 331         fresh.load[3] = cp_time[CP_IDLE];
 332         fresh.load[4] = cp_time[CP_IDLE];
 333
 334         used = fresh.load[0] + fresh.load[1] + fresh.load[2];
 335         total = fresh.load[0] + fresh.load[1] + fresh.load[2] + fresh.load[3];
 336
 337         if ((total - oldtotal) != 0) {
 338                 info.cpu_usage[0] = ((double) (used - oldused)) /
 339                         (double) (total - oldtotal);
 340         } else {
 341                 info.cpu_usage[0] = 0;
 342         }
 343
 344         oldused = used;
 345         oldtotal = total;
 346 }
 347
 348 double get_sysfs_info(int *fd, int arg, char *devtype, char *type)
 349 {
 350         return 0.0;
 351 }
 352
 353 void update_load_average()
 354 {
 355         double v[3];
 356
 357         getloadavg(v, 3);
 358
 359         info.loadavg[0] = (double) v[0];
 360         info.loadavg[1] = (double) v[1];
 361         info.loadavg[2] = (double) v[2];
 362 }
 363
 364 double get_acpi_temperature(int fd)
 365 {
 366         int temp;
 367
 368         if (GETSYSCTL("hw.acpi.thermal.tz0.temperature", temp)) {
 369                 fprintf(stderr,
 370                         "Cannot read sysctl \"hw.acpi.thermal.tz0.temperature\"\n");
 371                 return 0.0;
 372         }
 373
 374         return KELVTOC(temp);
 375 }
 376
 377 void get_battery_stuff(char *buf, unsigned int n, const char *bat, int item)
 378 {
 379         int battime, batcapacity, batstate, ac;
 380         char battery_status[64];
 381         char battery_time[64];
 382
 383         if (GETSYSCTL("hw.acpi.battery.time", battime)) {
 384                 fprintf(stderr, "Cannot read sysctl \"hw.acpi.battery.time\"\n");
 385         }
 386         if (GETSYSCTL("hw.acpi.battery.life", batcapacity)) {
 387                 fprintf(stderr, "Cannot read sysctl \"hw.acpi.battery.life\"\n");
 388         }
 389
 390         if (GETSYSCTL("hw.acpi.battery.state", batstate)) {
 391                 fprintf(stderr, "Cannot read sysctl \"hw.acpi.battery.state\"\n");
 392         }
 393
 394         if (GETSYSCTL("hw.acpi.acline", ac)) {
 395                 fprintf(stderr, "Cannot read sysctl \"hw.acpi.acline\"\n");
 396         }
 397
 398         if (batstate == 1) {
 399                 if (battime != -1) {
 400                         snprintf(battery_status, sizeof(battery_status) - 1,
 401                                 "remaining %d%%", batcapacity);
 402                         snprintf(battery_time, sizeof(battery_time) - 1, "%d:%2.2d",
 403                                 battime / 60, battime % 60);
 404                         /* snprintf(buf, n, "remaining %d%% (%d:%2.2d)", batcapacity,
 405                                 battime / 60, battime % 60); */
 406                 } else {
 407                         /* no time estimate available yet */
 408                         snprintf(battery_status, sizeof(battery_status) - 1,
 409                                 "remaining %d%%", batcapacity);
 410                 }
 411                 /* snprintf(buf, n, "remaining %d%%", batcapacity); */
 412                 if (ac == 1) {
 413                         fprintf(stderr, "Discharging while on AC!\n");
 414                 }
 415         } else {
 416                 snprintf(battery_status, sizeof(battery_status) - 1,
 417                         batstate == 2 ? "charging (%d%%)" : "charged (%d%%)", batcapacity);
 418                 /* snprintf(buf, n,
 419                         batstate == 2 ? "charging (%d%%)" : "charged (%d%%)",
 420                         batcapacity); */
 421                 if (batstate != 2 && batstate != 0) {
 422                         fprintf(stderr, "Unknown battery state %d!\n", batstate);
 423                 }
 424                 if (ac == 0) {
 425                         fprintf(stderr, "Charging while not on AC!\n");
 426                 }
 427         }
 428
 429         switch (item) {
 430                 case BATTERY_STATUS:
 431                         snprintf(buf, n, "%s", battery_status);
 432                         break;
 433                 case BATTERY_TIME:
 434                         snprintf(buf, n, "%s", battery_time);
 435                         break;
 436                 default:
 437                         break;
 438         }
 439 }
 440
 441 int get_battery_perct(const char *bat)
 442 {
 443         /* not implemented */
 444         return 0;
 445 }
 446
 447 int get_battery_perct_bar(const char *bar)
 448 {
 449         /* not implemented */
 450         return 0;
 451 }
 452
 453 int open_sysfs_sensor(const char *dir, const char *dev, const char *type,
 454                 int n, int *div, char *devtype)
 455 {
 456         return 0;
 457 }
 458
 459 int open_acpi_temperature(const char *name)
 460 {
 461         return 0;
 462 }
 463
 464 void get_acpi_ac_adapter(char *p_client_buffer, size_t client_buffer_size)
 465 {
 466         int state;
 467
 468         if (!p_client_buffer || client_buffer_size <= 0) {
 469                 return;
 470         }
 471
 472         if (GETSYSCTL("hw.acpi.acline", state)) {
 473                 fprintf(stderr, "Cannot read sysctl \"hw.acpi.acline\"\n");
 474                 return;
 475         }
 476
 477         if (state) {
 478                 strncpy(p_client_buffer, "Running on AC Power", client_buffer_size);
 479         } else {
 480                 strncpy(p_client_buffer, "Running on battery", client_buffer_size);
 481         }
 482 }
 483
 484 void get_acpi_fan(char *p_client_buffer, size_t client_buffer_size)
 485 {
 486         /* not implemented */
 487         if (p_client_buffer && client_buffer_size > 0) {
 488                 memset(p_client_buffer, 0, client_buffer_size);
 489         }
 490 }
 491
 492 void get_adt746x_cpu(char *p_client_buffer, size_t client_buffer_size)
 493 {
 494         /* not implemented */
 495         if (p_client_buffer && client_buffer_size > 0) {
 496                 memset(p_client_buffer, 0, client_buffer_size);
 497         }
 498 }
 499
 500 void get_adt746x_fan(char *p_client_buffer, size_t client_buffer_size)
 501 {
 502         /* not implemented */
 503         if (p_client_buffer && client_buffer_size > 0) {
 504                 memset(p_client_buffer, 0, client_buffer_size);
 505         }
 506 }
 507
 508 /* rdtsc() and get_freq_dynamic() copied from linux.c */
 509
 510 #if  defined(__i386) || defined(__x86_64)
 511 __inline__ unsigned long long int rdtsc()
 512 {
 513         unsigned long long int x;
 514
 515         __asm__ volatile(".byte 0x0f, 0x31":"=A" (x));
 516         return x;
 517 }
 518 #endif
 519
 520 /* return system frequency in MHz (use divisor=1) or GHz (use divisor=1000) */
 521 void get_freq_dynamic(char *p_client_buffer, size_t client_buffer_size,
 522                 char *p_format, int divisor)
 523 {
 524 #if  defined(__i386) || defined(__x86_64)
 525         struct timezone tz;
 526         struct timeval tvstart, tvstop;
 527         unsigned long long cycles[2];   /* gotta be 64 bit */
 528         unsigned int microseconds;      /* total time taken */
 529
 530         memset(&tz, 0, sizeof(tz));
 531
 532         /* get this function in cached memory */
 533         gettimeofday(&tvstart, &tz);
 534         cycles[0] = rdtsc();
 535         gettimeofday(&tvstart, &tz);
 536
 537         /* we don't trust that this is any specific length of time */
 538         usleep(100);
 539         cycles[1] = rdtsc();
 540         gettimeofday(&tvstop, &tz);
 541         microseconds = ((tvstop.tv_sec - tvstart.tv_sec) * 1000000) +
 542                 (tvstop.tv_usec - tvstart.tv_usec);
 543
 544         snprintf(p_client_buffer, client_buffer_size, p_format,
 545                 (float) ((cycles[1] - cycles[0]) / microseconds) / divisor);
 546 #else
 547         get_freq(p_client_buffer, client_buffer_size, p_format, divisor, 1);
 548 #endif
 549 }
 550
 551 /* void */
 552 char get_freq(char *p_client_buffer, size_t client_buffer_size, char *p_format,
 553                 int divisor, unsigned int cpu)
 554 {
 555         int freq;
 556         char *freq_sysctl;
 557
 558         freq_sysctl = (char *) calloc(16, sizeof(char));
 559         if (freq_sysctl == NULL) {
 560                 exit(-1);
 561         }
 562
 563         snprintf(freq_sysctl, 16, "dev.cpu.%d.freq", (cpu - 1));
 564
 565         if (!p_client_buffer || client_buffer_size <= 0 || !p_format
 566                         || divisor <= 0) {
 567                 return 0;
 568         }
 569
 570         if (GETSYSCTL(freq_sysctl, freq) == 0) {
 571                 snprintf(p_client_buffer, client_buffer_size, p_format,
 572                         (float) freq / divisor);
 573         } else {
 574                 snprintf(p_client_buffer, client_buffer_size, p_format, 0.0f);
 575         }
 576
 577         free(freq_sysctl);
 578         return 1;
 579 }
 580
 581 void update_top()
 582 {
 583         proc_find_top(info.cpu, info.memu);
 584 }
 585
 586 #if 0
 587 void update_wifi_stats()
 588 {
 589         struct ifreq ifr;               /* interface stats */
 590         struct wi_req wireq;
 591         struct net_stat *ns;
 592         struct ifaddrs *ifap, *ifa;
 593         struct ifmediareq ifmr;
 594         int s;
 595
 596         /* Get iface table */
 597         if (getifaddrs(&ifap) < 0) {
 598                 return;
 599         }
 600
 601         for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
 602                 ns = get_net_stat((const char *) ifa->ifa_name);
 603
 604                 s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
 605
 606                 /* Get media type */
 607                 bzero(&ifmr, sizeof(ifmr));
 608                 strlcpy(ifmr.ifm_name, ifa->ifa_name, IFNAMSIZ);
 609                 if (ioctl(s, SIOCGIFMEDIA, (caddr_t) &ifmr) < 0) {
 610                         goto cleanup;
 611                 }
 612
 613                 /* We can monitor only wireless interfaces
 614                  * which are not in hostap mode */
 615                 if ((ifmr.ifm_active & IFM_IEEE80211)
 616                                 && !(ifmr.ifm_active & IFM_IEEE80211_HOSTAP)) {
 617                         /* Get wi status */
 618                         bzero(&ifr, sizeof(ifr));
 619                         strlcpy(ifr.ifr_name, ifa->ifa_name, IFNAMSIZ);
 620                         wireq.wi_type = WI_RID_COMMS_QUALITY;
 621                         wireq.wi_len = WI_MAX_DATALEN;
 622                         ifr.ifr_data = (void *) &wireq;
 623
 624                         if (ioctl(s, SIOCGWAVELAN, (caddr_t) &ifr) < 0) {
 625                                 perror("ioctl (getting wi status)");
 626                                 exit(1);
 627                         }
 628
 629                         /* wi_val[0] = quality
 630                          * wi_val[1] = signal
 631                          * wi_val[2] = noise */
 632                         ns->linkstatus = (int) wireq.wi_val[1];
 633                 }
 634 cleanup:
 635                 close(s);
 636         }
 637 }
 638 #endif
 639
 640 void update_diskio()
 641 {
 642         int devs_count, num_selected, num_selections, i;
 643         struct device_selection *dev_select = NULL;
 644         long select_generation;
 645         int dn;
 646         static struct statinfo statinfo_cur;
 647         u_int64_t diskio_current = 0;
 648         u_int64_t writes = 0;
 649
 650         bzero(&statinfo_cur, sizeof(statinfo_cur));
 651         statinfo_cur.dinfo = (struct devinfo *) malloc(sizeof(struct devinfo));
 652         bzero(statinfo_cur.dinfo, sizeof(struct devinfo));
 653
 654         if (devstat_getdevs(NULL, &statinfo_cur) < 0) {
 655                 return;
 656         }
 657
 658         devs_count = statinfo_cur.dinfo->numdevs;
 659         if (devstat_selectdevs(&dev_select, &num_selected, &num_selections,
 660                         &select_generation, statinfo_cur.dinfo->generation,
 661                         statinfo_cur.dinfo->devices, devs_count, NULL, 0, NULL, 0,
 662                         DS_SELECT_ONLY, MAXSHOWDEVS, 1) >= 0) {
 663                 for (dn = 0; dn < devs_count; ++dn) {
 664                         int di;
 665                         struct devstat *dev;
 666
 667                         di = dev_select[dn].position;
 668                         dev = &statinfo_cur.dinfo->devices[di];
 669
 670                         diskio_current += dev->bytes[DEVSTAT_READ] + dev->bytes[DEVSTAT_WRITE];
 671
 672                         for (i = 0; i < MAX_DISKIO_STATS; i++) {
 673                                 if (diskio_stats[i].dev && strcmp(dev_select[dn].device_name,
 674                                                 diskio_stats[i].dev) == 0) {
 675                                         diskio_stats[i].current = (dev->bytes[DEVSTAT_READ] +
 676                                                 dev->bytes[DEVSTAT_WRITE] - diskio_stats[i].last) / 1024;
 677                                         diskio_stats[i].current_read = (dev->bytes[DEVSTAT_READ] -
 678                                                 diskio_stats[i].last_read) / 1024;
 679                                         diskio_stats[i].current_write = (dev->bytes[DEVSTAT_WRITE] -
 680                                                 diskio_stats[i].last_write) / 1024;
 681                                         if (dev->bytes[DEVSTAT_READ] + dev->bytes[DEVSTAT_WRITE]
 682                                                         < diskio_stats[i].last) {
 683                                                 diskio_stats[i].current = 0;
 684                                         }
 685                                         if (dev->bytes[DEVSTAT_READ] < diskio_stats[i].last_read) {
 686                                                 diskio_stats[i].current_read = 0;
 687                                                 diskio_stats[i].current = diskio_stats[i].current_write;
 688                                         }
 689                                         if (dev->bytes[DEVSTAT_WRITE] < diskio_stats[i].last_write) {
 690                                                 diskio_stats[i].current_write = 0;
 691                                                 diskio_stats[i].current = diskio_stats[i].current_read;
 692                                         }
 693                                         diskio_stats[i].last = dev->bytes[DEVSTAT_READ] +
 694                                                 dev->bytes[DEVSTAT_WRITE];
 695                                         diskio_stats[i].last_read = dev->bytes[DEVSTAT_READ];
 696                                         diskio_stats[i].last_write = dev->bytes[DEVSTAT_WRITE];
 697                                 }
 698                         }
 699                 }
 700
 701                 free(dev_select);
 702         }
 703
 704         /* Since we return (diskio_total_current - diskio_total_old),
 705          * the first frame will be way too high
 706          * (it will be equal to diskio_total_current, i.e. all disk I/O since boot).
 707          *  That's why it is better to return 0 first time; */
 708         if (diskio_setup == 0) {
 709                 diskio_setup = 1;
 710                 diskio_value = 0;
 711         } else {
 712                 diskio_value = (unsigned int) ((diskio_current - diskio_prev) / 1024);
 713         }
 714         diskio_prev = diskio_current;
 715
 716         free(statinfo_cur.dinfo);
 717 }
 718
 719 /* While topless is obviously better, top is also not bad. */
 720
 721 int comparecpu(const void *a, const void *b)
 722 {
 723         if (((struct process *)a)->amount > ((struct process *)b)->amount) {
 724                 return -1;
 725         } else if (((struct process *)a)->amount < ((struct process *)b)->amount) {
 726                 return 1;
 727         } else {
 728                 return 0;
 729         }
 730 }
 731
 732 int comparemem(const void *a, const void *b)
 733 {
 734         if (((struct process *)a)->totalmem > ((struct process *)b)->totalmem) {
 735                 return -1;
 736         } else if (((struct process *)a)->totalmem < ((struct process *)b)->totalmem) {
 737                 return 1;
 738         } else {
 739                 return 0;
 740         }
 741 }
 742
 743 inline void proc_find_top(struct process **cpu, struct process **mem)
 744 {
 745         struct kinfo_proc *p;
 746         int n_processes;
 747         int i, j = 0;
 748         struct process *processes;
 749
 750         int total_pages;
 751
 752         /* we get total pages count again to be sure it is up to date */
 753         if (GETSYSCTL("vm.stats.vm.v_page_count", total_pages) != 0) {
 754                 CRIT_ERR("Cannot read sysctl \"vm.stats.vm.v_page_count\"");
 755         }
 756
 757         p = kvm_getprocs(kd, KERN_PROC_PROC, 0, &n_processes);
 758         processes = malloc(n_processes * sizeof(struct process));
 759
 760         for (i = 0; i < n_processes; i++) {
 761                 if (!((p[i].ki_flag & P_SYSTEM)) && p[i].ki_comm != NULL) {
 762                         processes[j].pid = p[i].ki_pid;
 763                         processes[j].name = strdup(p[i].ki_comm);
 764                         processes[j].amount = 100.0 * p[i].ki_pctcpu / FSCALE;
 765                         processes[j].totalmem = (float) (p[i].ki_rssize /
 766                                 (float) total_pages) * 100.0;
 767                         processes[j].vsize = p[i].ki_size;
 768                         processes[j].rss = (p[i].ki_rssize * getpagesize());
 769                         j++;
 770                 }
 771         }
 772
 773         qsort(processes, j - 1, sizeof(struct process), comparemem);
 774         for (i = 0; i < 10 && i < n_processes; i++) {
 775                 struct process *tmp, *ttmp;
 776
 777                 tmp = malloc(sizeof(struct process));
 778                 tmp->pid = processes[i].pid;
 779                 tmp->amount = processes[i].amount;
 780                 tmp->totalmem = processes[i].totalmem;
 781                 tmp->name = strdup(processes[i].name);
 782                 tmp->rss = processes[i].rss;
 783                 tmp->vsize = processes[i].vsize;
 784
 785                 ttmp = mem[i];
 786                 mem[i] = tmp;
 787                 if (ttmp != NULL) {
 788                         free(ttmp->name);
 789                         free(ttmp);
 790                 }
 791         }
 792
 793         qsort(processes, j - 1, sizeof(struct process), comparecpu);
 794         for (i = 0; i < 10 && i < n_processes; i++) {
 795                 struct process *tmp, *ttmp;
 796
 797                 tmp = malloc(sizeof(struct process));
 798                 tmp->pid = processes[i].pid;
 799                 tmp->amount = processes[i].amount;
 800                 tmp->totalmem = processes[i].totalmem;
 801                 tmp->name = strdup(processes[i].name);
 802                 tmp->rss = processes[i].rss;
 803                 tmp->vsize = processes[i].vsize;
 804
 805                 ttmp = cpu[i];
 806                 cpu[i] = tmp;
 807                 if (ttmp != NULL) {
 808                         free(ttmp->name);
 809                         free(ttmp);
 810                 }
 811         }
 812
 813 #if defined(FREEBSD_DEBUG)
 814         printf("=====\nmem\n");
 815         for (i = 0; i < 10; i++) {
 816                 printf("%d: %s(%d) %.2f %ld %ld\n", i, mem[i]->name,
 817                                 mem[i]->pid, mem[i]->totalmem, mem[i]->vsize, mem[i]->rss);
 818         }
 819 #endif
 820
 821         for (i = 0; i < j; i++) {
 822                 free(processes[i].name);
 823         }
 824         free(processes);
 825 }
 826
 827 #if     defined(i386) || defined(__i386__)
 828 #define APMDEV          "/dev/apm"
 829 #define APM_UNKNOWN     255
 830
 831 int apm_getinfo(int fd, apm_info_t aip)
 832 {
 833         if (ioctl(fd, APMIO_GETINFO, aip) == -1) {
 834                 return -1;
 835         }
 836
 837         return 0;
 838 }
 839
 840 char *get_apm_adapter()
 841 {
 842         int fd;
 843         struct apm_info info;
 844         char *out;
 845
 846         out = (char *) calloc(16, sizeof(char));
 847
 848         fd = open(APMDEV, O_RDONLY);
 849         if (fd < 0) {
 850                 strncpy(out, "ERR", 16);
 851                 return out;
 852         }
 853
 854         if (apm_getinfo(fd, &info) != 0) {
 855                 close(fd);
 856                 strncpy(out, "ERR", 16);
 857                 return out;
 858         }
 859         close(fd);
 860
 861         switch (info.ai_acline) {
 862                 case 0:
 863                         strncpy(out, "off-line", 16);
 864                         return out;
 865                         break;
 866                 case 1:
 867                         if (info.ai_batt_stat == 3) {
 868                                 strncpy(out, "charging", 16);
 869                                 return out;
 870                         } else {
 871                                 strncpy(out, "on-line", 16);
 872                                 return out;
 873                         }
 874                         break;
 875                 default:
 876                         strncpy(out, "unknown", 16);
 877                         return out;
 878                         break;
 879         }
 880 }
 881
 882 char *get_apm_battery_life()
 883 {
 884         int fd;
 885         u_int batt_life;
 886         struct apm_info info;
 887         char *out;
 888
 889         out = (char *) calloc(16, sizeof(char));
 890
 891         fd = open(APMDEV, O_RDONLY);
 892         if (fd < 0) {
 893                 strncpy(out, "ERR", 16);
 894                 return out;
 895         }
 896
 897         if (apm_getinfo(fd, &info) != 0) {
 898                 close(fd);
 899                 strncpy(out, "ERR", 16);
 900                 return out;
 901         }
 902         close(fd);
 903
 904         batt_life = info.ai_batt_life;
 905         if (batt_life == APM_UNKNOWN) {
 906                 strncpy(out, "unknown", 16);
 907         } else if (batt_life <= 100) {
 908                 snprintf(out, 16, "%d%%", batt_life);
 909                 return out;
 910         } else {
 911                 strncpy(out, "ERR", 16);
 912         }
 913
 914         return out;
 915 }
 916
 917 char *get_apm_battery_time()
 918 {
 919         int fd;
 920         int batt_time;
 921         int h, m, s;
 922         struct apm_info info;
 923         char *out;
 924
 925         out = (char *) calloc(16, sizeof(char));
 926
 927         fd = open(APMDEV, O_RDONLY);
 928         if (fd < 0) {
 929                 strncpy(out, "ERR", 16);
 930                 return out;
 931         }
 932
 933         if (apm_getinfo(fd, &info) != 0) {
 934                 close(fd);
 935                 strncpy(out, "ERR", 16);
 936                 return out;
 937         }
 938         close(fd);
 939
 940         batt_time = info.ai_batt_time;
 941
 942         if (batt_time == -1) {
 943                 strncpy(out, "unknown", 16);
 944         } else {
 945                 h = batt_time;
 946                 s = h % 60;
 947                 h /= 60;
 948                 m = h % 60;
 949                 h /= 60;
 950                 snprintf(out, 16, "%2d:%02d:%02d", h, m, s);
 951         }
 952
 953         return out;
 954 }
 955
 956 #endif
 957
 958 void update_entropy(void)
 959 {
 960         /* mirrorbox: can you do anything equivalent in freebsd? -drphibes. */
 961 }
 962
 963 /* empty stub so conky links */
 964 void free_all_processes(void)
 965 {
 966 }