1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754
|
#include "torsmo.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/sysinfo.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>
static struct sysinfo s_info;
void prepare_update() {
}
static void update_sysinfo() {
sysinfo(&s_info);
info.uptime = (double) s_info.uptime;
/* there was some problem with these */
#if 0
info.loadavg[0] = s_info.loads[0] / 100000.0f;
info.loadavg[1] = s_info.loads[1] / 100000.0f;
info.loadavg[2] = s_info.loads[2] / 100000.0f;
info.mask |= 1 << INFO_LOADAVG;
#endif
info.procs = s_info.procs;
/* these aren't nice, no cache and should check kernel version for mem_unit */
#if 0
info.memmax = s_info.totalram;
info.mem = s_info.totalram - s_info.freeram;
info.swapmax = s_info.totalswap;
info.swap = s_info.totalswap - s_info.swap;
info.mask |= 1 << INFO_MEM;
#endif
info.mask |= (1 << INFO_UPTIME) | (1 << INFO_PROCS);
}
void update_uptime() {
/* prefers sysinfo() for uptime, I don't really know which one is better
* (=faster?) */
#ifdef USE_PROC_UPTIME
static int rep;
FILE *fp = open_file("/proc/uptime", &rep);
if(!fp) return 0;
fscanf(fp, "%lf", &info.uptime);
fclose(fp);
info.mask |= (1 << INFO_UPTIME);
#else
update_sysinfo();
#endif
}
/* these things are also in sysinfo except Buffers:, that's why I'm reading
* them from proc */
static FILE *meminfo_fp;
void update_meminfo() {
static int rep;
/* unsigned int a; */
char buf[256];
info.mem = info.memmax = info.swap = info.swapmax = info.bufmem =
info.buffers = info.cached = 0;
if (meminfo_fp == NULL)
meminfo_fp = open_file("/proc/meminfo", &rep);
else
fseek(meminfo_fp, 0, SEEK_SET);
if (meminfo_fp == NULL) return;
while (!feof(meminfo_fp)) {
if (fgets(buf, 255, meminfo_fp) == NULL) break;
if (strncmp(buf, "MemTotal:", 9) == 0) {
sscanf(buf, "%*s %u", &info.memmax);
}
else if (strncmp(buf, "MemFree:", 8) == 0) {
sscanf(buf, "%*s %u", &info.mem);
}
else if (strncmp(buf, "SwapTotal:", 10) == 0) {
sscanf(buf, "%*s %u", &info.swapmax);
}
else if (strncmp(buf, "SwapFree:", 9) == 0) {
sscanf(buf, "%*s %u", &info.swap);
}
else if (strncmp(buf, "Buffers:", 8) == 0) {
sscanf(buf, "%*s %u", &info.buffers);
}
else if (strncmp(buf, "Cached:", 7) == 0) {
sscanf(buf, "%*s %u", &info.cached);
}
}
info.mem = info.memmax - info.mem;
info.swap = info.swapmax - info.swap;
info.bufmem = info.cached + info.buffers;
info.mask |= (1 << INFO_MEM) | (1 << INFO_BUFFERS);
}
static FILE *net_dev_fp;
void update_net_stats() {
static int rep;
unsigned int i;
char buf[256];
double delta;
/* get delta */
delta = current_update_time - last_update_time;
if (delta <= 0.0001) return;
/* open file and ignore first two lines */
if (net_dev_fp == NULL)
net_dev_fp = open_file("/proc/net/dev", &rep);
else
fseek(net_dev_fp, 0, SEEK_SET);
if (!net_dev_fp) return;
fgets(buf, 255, net_dev_fp); /* garbage */
fgets(buf, 255, net_dev_fp); /* garbage (field names) */
/* read each interface */
for (i=0; i<16; i++) {
struct net_stat *ns;
char *s, *p;
long long r, t, last_recv, last_trans;
if (fgets(buf, 255, net_dev_fp) == NULL) break;
p = buf;
while (isspace((int) *p)) p++;
s = p;
while (*p && *p != ':') p++;
if (*p == '\0') continue;
*p = '\0';
p++;
ns = get_net_stat(s);
ns->up = 1;
last_recv = ns->recv;
last_trans = ns->trans;
sscanf(p,
/* bytes packets errs drop fifo frame compressed multicast|bytes ... */
"%Ld %*d %*d %*d %*d %*d %*d %*d %Ld",
&r, &t);
/* if recv or trans is less than last time, an overflow happened */
if (r < ns->last_read_recv)
ns->recv += ((long long) 4294967295U - ns->last_read_recv) + r;
else
ns->recv += (r - ns->last_read_recv);
ns->last_read_recv = r;
if (t < ns->last_read_trans)
ns->trans += ((long long) 4294967295U - ns->last_read_trans) + t;
else
ns->trans += (t - ns->last_read_trans);
ns->last_read_trans = t;
/* calculate speeds */
ns->recv_speed = (ns->recv - last_recv) / delta;
ns->trans_speed = (ns->trans - last_trans) / delta;
}
/* fclose(net_dev_fp); net_dev_fp = NULL; */
}
void update_total_processes() {
update_sysinfo();
}
static unsigned int cpu_user, cpu_system, cpu_nice;
static double last_cpu_sum;
static int clock_ticks;
static FILE *stat_fp;
static void update_stat() {
static int rep;
char buf[256];
if (stat_fp == NULL)
stat_fp = open_file("/proc/stat", &rep);
else
fseek(stat_fp, 0, SEEK_SET);
if (stat_fp == NULL) return;
info.cpu_count = 0;
while (!feof(stat_fp)) {
if (fgets(buf, 255, stat_fp) == NULL)
break;
if (strncmp(buf, "procs_running ", 14) == 0) {
sscanf(buf, "%*s %d", &info.run_procs);
info.mask |= (1 << INFO_RUN_PROCS);
}
else if (strncmp(buf, "cpu ", 4) == 0) {
sscanf(buf, "%*s %u %u %u", &cpu_user, &cpu_nice, &cpu_system);
info.mask |= (1 << INFO_CPU);
}
else if (strncmp(buf, "cpu", 3) == 0 && isdigit(buf[3])) {
info.cpu_count++;
}
}
{
double delta;
delta = current_update_time - last_update_time;
if (delta <= 0.001) return;
if (clock_ticks == 0)
clock_ticks = sysconf(_SC_CLK_TCK);
info.cpu_usage = (cpu_user+cpu_nice+cpu_system - last_cpu_sum) / delta
/ (double) clock_ticks / info.cpu_count;
last_cpu_sum = cpu_user+cpu_nice+cpu_system;
}
}
void update_running_processes() {
update_stat();
}
void update_cpu_usage() {
update_stat();
}
void update_load_average() {
#ifdef HAVE_GETLOADAVG
double v[3];
getloadavg(v, 3);
info.loadavg[0] = (float) v[0];
info.loadavg[1] = (float) v[1];
info.loadavg[2] = (float) v[2];
#else
static int rep;
FILE *fp;
fp = open_file("/proc/loadavg", &rep);
if (!fp) {
v[0] = v[1] = v[2] = 0.0;
return;
}
fscanf(fp, "%f %f %f", &info.loadavg[0], &info.loadavg[1], &info.loadavg[2]);
fclose(fp);
#endif
}
static int no_dots(const struct dirent *d) {
if(d->d_name[0] == '.') return 0;
return 1;
}
static int get_first_file_in_a_directory(const char *dir, char *s, int *rep) {
struct dirent **namelist;
int i, n;
n = scandir(dir, &namelist, no_dots, alphasort);
if (n < 0) {
if (!rep || !*rep) {
ERR("scandir for %s: %s", dir, strerror(errno));
if (rep) *rep = 1;
}
return 0;
}
else {
if (n == 0) return 0;
strncpy(s, namelist[0]->d_name, 255);
s[255] = '\0';
for (i=0; i<n; i++)
free(namelist[i]);
free(namelist);
return 1;
}
}
#define I2C_DIR "/sys/bus/i2c/devices/"
int open_i2c_sensor(const char *dev, const char *type, int n, int *div) {
char path[256];
char buf[64];
int fd;
int divfd;
/* if i2c device is NULL or *, get first */
if (dev == NULL || strcmp(dev, "*") == 0) {
static int rep;
if (!get_first_file_in_a_directory(I2C_DIR, buf, &rep))
return -1;
dev = buf;
}
/* change vol to in */
if (strcmp(type, "vol") == 0)
type = "in";
snprintf(path, 255, I2C_DIR "%s/%s%d_input", dev, type, n);
/* open file */
fd = open(path, O_RDONLY);
if (fd < 0) ERR("can't open '%s': %s", path, strerror(errno));
if (strcmp(type, "in") == 0 || strcmp(type, "temp") == 0)
*div = 1;
else
*div = 0;
/* test if *_div file exist, open it and use it as divisor */
snprintf(path, 255, I2C_DIR "%s/%s%d_div", dev, type, n);
divfd = open(path, O_RDONLY);
if (divfd > 0) {
/* read integer */
char divbuf[64];
unsigned int divn;
divn = read(divfd, divbuf, 63);
/* should read until n == 0 but I doubt that kernel will give these
* in multiple pieces. :) */
divbuf[divn] = '\0';
*div = atoi(divbuf);
}
close(divfd);
return fd;
}
double get_i2c_info(int fd, int div) {
int val = 0;
if (fd <= 0) return 0;
lseek(fd, 0, SEEK_SET);
/* read integer */
{
char buf[64];
unsigned int n;
n = read(fd, buf, 63);
/* should read until n == 0 but I doubt that kernel will give these
* in multiple pieces. :) */
buf[n] = '\0';
val = atoi(buf);
}
/* divide voltage and temperature by 1000 */
/* or if any other divisor is given, use that */
if (div > 1)
return val / div;
else if (div)
return val / 1000.0;
else
return val;
}
#define ADT746X_FAN "/sys/devices/temperatures/cpu_fan_speed"
static char *adt746x_fan_state;
char* get_adt746x_fan() {
static int rep;
FILE *fp;
if (adt746x_fan_state == NULL) {
adt746x_fan_state = (char*)malloc(100);
assert(adt746x_fan_state!=NULL);
}
fp = open_file(ADT746X_FAN, &rep);
if (!fp) {
strcpy(adt746x_fan_state,"No fan found! Hey, you don't have one?");
return adt746x_fan_state;
}
fscanf(fp, "%s", adt746x_fan_state);
fclose(fp);
return adt746x_fan_state;
}
#define ADT746X_CPU "/sys/devices/temperatures/cpu_temperature"
static char *adt746x_cpu_state;
char* get_adt746x_cpu() {
static int rep;
FILE *fp;
if (adt746x_cpu_state == NULL) {
adt746x_cpu_state = (char*)malloc(100);
assert(adt746x_cpu_state!=NULL);
}
fp = open_file(ADT746X_CPU, &rep);
fscanf(fp, "%2s", adt746x_cpu_state);
fclose(fp);
return adt746x_cpu_state;
}
static char *frequency;
char* get_freq()
{
FILE *f;
char s[1000];
if (frequency == NULL) {
frequency = (char*)malloc(100);
assert(frequency!=NULL);
}
//char frequency[10];
f=fopen("/proc/cpuinfo","r"); //open the CPU information file
//if (!f)
// return;
while (fgets(s,1000,f)!=NULL) //read the file
if ( strncmp(s, "cpu M", 5)==0 ) { //and search for the cpu mhz
//printf("%s", strchr(s, ':')+2);
strcpy(frequency,strchr(s, ':')+2); //copy just the number
frequency[strlen(frequency)-1] = '\0'; // strip \n
break;
}
fclose(f);
return frequency;
}
#define ACPI_FAN_DIR "/proc/acpi/fan/"
static char *acpi_fan_state;
char* get_acpi_fan() {
static int rep;
char buf[256];
char buf2[256];
FILE *fp;
if (acpi_fan_state == NULL) {
acpi_fan_state = (char*)malloc(100);
assert(acpi_fan_state!=NULL);
}
/* yeah, slow... :/ */
if (!get_first_file_in_a_directory(ACPI_FAN_DIR, buf, &rep))
return "no fans?";
snprintf(buf2, 256, "%s%s/state", ACPI_FAN_DIR, buf);
fp = open_file(buf2, &rep);
if (!fp) {
strcpy(acpi_fan_state, "can't open fan's state file");
return acpi_fan_state;
}
fscanf(fp, "%*s %99s", acpi_fan_state);
return acpi_fan_state;
}
#define ACPI_AC_ADAPTER_DIR "/proc/acpi/ac_adapter/"
static char *acpi_ac_adapter_state;
char* get_acpi_ac_adapter() {
static int rep;
char buf[256];
char buf2[256];
FILE *fp;
if (acpi_ac_adapter_state == NULL) {
acpi_ac_adapter_state = (char*)malloc(100);
assert(acpi_ac_adapter_state!=NULL);
}
/* yeah, slow... :/ */
if (!get_first_file_in_a_directory(ACPI_AC_ADAPTER_DIR, buf, &rep))
return "no ac_adapters?";
snprintf(buf2, 256, "%s%s/state", ACPI_AC_ADAPTER_DIR, buf);
fp = open_file(buf2, &rep);
if (!fp) {
strcpy(acpi_ac_adapter_state,"No ac adapter found.... where is it?");
return acpi_ac_adapter_state;
}
fscanf(fp, "%*s %99s", acpi_ac_adapter_state);
fclose(fp);
return acpi_ac_adapter_state;
}
/*
/proc/acpi/thermal_zone/THRM/cooling_mode
cooling mode: active
/proc/acpi/thermal_zone/THRM/polling_frequency
<polling disabled>
/proc/acpi/thermal_zone/THRM/state
state: ok
/proc/acpi/thermal_zone/THRM/temperature
temperature: 45 C
/proc/acpi/thermal_zone/THRM/trip_points
critical (S5): 73 C
passive: 73 C: tc1=4 tc2=3 tsp=40 devices=0xcdf6e6c0
*/
#define ACPI_THERMAL_DIR "/proc/acpi/thermal_zone/"
#define ACPI_THERMAL_FORMAT "/proc/acpi/thermal_zone/%s/temperature"
int open_acpi_temperature(const char *name) {
char path[256];
char buf[64];
int fd;
if (name == NULL || strcmp(name, "*") == 0) {
static int rep;
if (!get_first_file_in_a_directory(ACPI_THERMAL_DIR, buf, &rep))
return -1;
name = buf;
}
snprintf(path, 255, ACPI_THERMAL_FORMAT, name);
fd = open(path, O_RDONLY);
if (fd < 0) ERR("can't open '%s': %s", path, strerror(errno));
return fd;
}
static double last_acpi_temp;
static double last_acpi_temp_time;
double get_acpi_temperature(int fd) {
if (fd <= 0) return 0;
/* don't update acpi temperature too often */
if (current_update_time - last_acpi_temp_time < 11.32) {
return last_acpi_temp;
}
last_acpi_temp_time = current_update_time;
/* seek to beginning */
lseek(fd, 0, SEEK_SET);
/* read */
{
char buf[256];
int n;
n = read(fd, buf, 255);
if (n < 0) ERR("can't read fd %d: %s", fd, strerror(errno));
else {
buf[n] = '\0';
sscanf(buf, "temperature: %lf", &last_acpi_temp);
}
}
return last_acpi_temp;
}
/*
hipo@lepakko hipo $ cat /proc/acpi/battery/BAT1/info
present: yes
design capacity: 4400 mAh
last full capacity: 4064 mAh
battery technology: rechargeable
design voltage: 14800 mV
design capacity warning: 300 mAh
design capacity low: 200 mAh
capacity granularity 1: 32 mAh
capacity granularity 2: 32 mAh
model number: 02KT
serial number: 16922
battery type: LION
OEM info: SANYO
*/
/*
hipo@lepakko torsmo $ cat /proc/acpi/battery/BAT1/state
present: yes
capacity state: ok
charging state: unknown
present rate: 0 mA
remaining capacity: 4064 mAh
present voltage: 16608 mV
*/
/*
2213<@jupetkellari> jupet@lagi-unstable:~$ cat /proc/apm
2213<@jupetkellari> 1.16 1.2 0x03 0x01 0xff 0x10 -1% -1 ?
2213<@jupetkellari> (-1 ollee ei akkua kiinni, koska akku on pydll)
2214<@jupetkellari> jupet@lagi-unstable:~$ cat /proc/apm
2214<@jupetkellari> 1.16 1.2 0x03 0x01 0x03 0x09 98% -1 ?
2238<@jupetkellari> 1.16 1.2 0x03 0x00 0x00 0x01 100% -1 ? ilman verkkovirtaa
2239<@jupetkellari> 1.16 1.2 0x03 0x01 0x00 0x01 99% -1 ? verkkovirralla
2240<@jupetkellari> 1.16 1.2 0x03 0x01 0x03 0x09 100% -1 ? verkkovirralla ja monitori pll
2241<@jupetkellari> 1.16 1.2 0x03 0x00 0x00 0x01 99% -1 ? monitori pll mutta ilman verkkovirtaa
*/
#define ACPI_BATTERY_BASE_PATH "/proc/acpi/battery"
#define APM_PATH "/proc/apm"
static FILE *acpi_bat_fp;
static FILE *apm_bat_fp;
static int acpi_last_full;
static char last_battery_str[64];
static double last_battery_time;
void get_battery_stuff(char *buf, unsigned int n, const char *bat) {
static int rep, rep2;
char acpi_path[128];
snprintf(acpi_path, 127, ACPI_BATTERY_BASE_PATH "/%s/state", bat);
/* don't update battery too often */
if (current_update_time - last_battery_time < 29.5) {
snprintf(buf, n, "%s", last_battery_str);
return;
}
last_battery_time = current_update_time;
/* first try ACPI */
if (acpi_bat_fp == NULL && apm_bat_fp == NULL)
acpi_bat_fp = open_file(acpi_path, &rep);
if (acpi_bat_fp != NULL) {
int present_rate = -1;
int remaining_capacity = -1;
char charging_state[64];
/* read last full capacity if it's zero */
if (acpi_last_full == 0) {
static int rep;
char path[128];
FILE *fp;
snprintf(path, 127, ACPI_BATTERY_BASE_PATH "/%s/info", bat);
fp = open_file(path, &rep);
if (fp != NULL) {
while (!feof(fp)) {
char b[256];
if (fgets(b, 256, fp) == NULL) break;
if (sscanf(b, "last full capacity: %d", &acpi_last_full) != 0)
break;
}
fclose(fp);
}
}
fseek(acpi_bat_fp, 0, SEEK_SET);
strcpy(charging_state, "unknown");
while (!feof(acpi_bat_fp)) {
char buf[256];
if (fgets(buf, 256, acpi_bat_fp) == NULL) break;
/* let's just hope units are ok */
if(buf[0] == 'c')
sscanf(buf, "charging state: %63s", charging_state);
else if(buf[0] == 'p')
sscanf(buf, "present rate: %d", &present_rate);
else if(buf[0] == 'r')
sscanf(buf, "remaining capacity: %d", &remaining_capacity);
}
/* charging */
if (strcmp(charging_state, "charging") == 0) {
if (acpi_last_full != 0 && present_rate > 0) {
strcpy(last_battery_str, "charging ");
format_seconds(last_battery_str+9, 63-9,
(acpi_last_full - remaining_capacity) * 60 * 60 / present_rate);
}
else if (acpi_last_full != 0 && present_rate <= 0) {
sprintf(last_battery_str, "charging %d%%",
remaining_capacity * 100 / acpi_last_full);
}
else {
strcpy(last_battery_str, "charging");
}
}
/* discharging */
else if (strcmp(charging_state, "discharging") == 0) {
if (present_rate > 0)
format_seconds(last_battery_str, 63,
(remaining_capacity * 60 * 60) / present_rate);
else
sprintf(last_battery_str, "discharging %d%%",
remaining_capacity * 100 / acpi_last_full);
}
/* unknown, probably full / AC */
else {
if (acpi_last_full != 0 && remaining_capacity != acpi_last_full)
sprintf(last_battery_str, "unknown %d%%",
remaining_capacity * 100 / acpi_last_full);
else
strcpy(last_battery_str, "AC");
}
}
else {
/* APM */
if (apm_bat_fp == NULL)
apm_bat_fp = open_file(APM_PATH, &rep2);
if (apm_bat_fp != NULL) {
int ac, status, flag, life;
fscanf(apm_bat_fp, "%*s %*s %*x %x %x %x %d%%",
&ac, &status, &flag, &life);
if (life == -1) {
/* could check now that there is ac */
snprintf(last_battery_str, 64, "AC");
}
else if (ac && life != 100) { /* could check that status==3 here? */
snprintf(last_battery_str, 64, "charging %d%%", life);
}
else {
snprintf(last_battery_str, 64, "%d%%", life);
}
/* it seemed to buffer it so file must be closed (or could use syscalls
* directly but I don't feel like coding it now) */
fclose(apm_bat_fp);
apm_bat_fp = NULL;
}
}
snprintf(buf, n, "%s", last_battery_str);
}
|