diff options
Diffstat (limited to 'slstatus/components/swap.c')
| -rw-r--r-- | slstatus/components/swap.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/slstatus/components/swap.c b/slstatus/components/swap.c deleted file mode 100644 index 2509db1..0000000 --- a/slstatus/components/swap.c +++ /dev/null @@ -1,284 +0,0 @@ -/* See LICENSE file for copyright and license details. */ -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "../util.h" - -#if defined(__linux__) - static int - get_swap_info(long *s_total, long *s_free, long *s_cached) - { - FILE *fp; - struct { - const char *name; - const size_t len; - long *var; - } ent[] = { - { "SwapTotal", sizeof("SwapTotal") - 1, s_total }, - { "SwapFree", sizeof("SwapFree") - 1, s_free }, - { "SwapCached", sizeof("SwapCached") - 1, s_cached }, - }; - size_t line_len = 0, i, left; - char *line = NULL; - - /* get number of fields we want to extract */ - for (i = 0, left = 0; i < LEN(ent); i++) { - if (ent[i].var) { - left++; - } - } - - if (!(fp = fopen("/proc/meminfo", "r"))) { - warn("fopen '/proc/meminfo':"); - return 1; - } - - /* read file line by line and extract field information */ - while (left > 0 && getline(&line, &line_len, fp) >= 0) { - for (i = 0; i < LEN(ent); i++) { - if (ent[i].var && - !strncmp(line, ent[i].name, ent[i].len)) { - sscanf(line + ent[i].len + 1, - "%ld kB\n", ent[i].var); - left--; - break; - } - } - } - free(line); - if (ferror(fp)) { - warn("getline '/proc/meminfo':"); - return 1; - } - - fclose(fp); - return 0; - } - - const char * - swap_free(void) - { - long free; - - if (get_swap_info(NULL, &free, NULL)) { - return NULL; - } - - return fmt_human(free * 1024, 1024); - } - - const char * - swap_perc(void) - { - long total, free, cached; - - if (get_swap_info(&total, &free, &cached) || total == 0) { - return NULL; - } - - return bprintf("%d", 100 * (total - free - cached) / total); - } - - const char * - swap_total(void) - { - long total; - - if (get_swap_info(&total, NULL, NULL)) { - return NULL; - } - - return fmt_human(total * 1024, 1024); - } - - const char * - swap_used(void) - { - long total, free, cached; - - if (get_swap_info(&total, &free, &cached)) { - return NULL; - } - - return fmt_human((total - free - cached) * 1024, 1024); - } -#elif defined(__OpenBSD__) - #include <stdlib.h> - #include <sys/swap.h> - #include <sys/types.h> - #include <unistd.h> - - static int - getstats(int *total, int *used) - { - struct swapent *sep, *fsep; - int rnswap, nswap, i; - - if ((nswap = swapctl(SWAP_NSWAP, 0, 0)) < 1) { - warn("swaptctl 'SWAP_NSWAP':"); - return 1; - } - if (!(fsep = sep = calloc(nswap, sizeof(*sep)))) { - warn("calloc 'nswap':"); - return 1; - } - if ((rnswap = swapctl(SWAP_STATS, (void *)sep, nswap)) < 0) { - warn("swapctl 'SWAP_STATA':"); - return 1; - } - if (nswap != rnswap) { - warn("getstats: SWAP_STATS != SWAP_NSWAP"); - return 1; - } - - *total = 0; - *used = 0; - - for (i = 0; i < rnswap; i++) { - *total += sep->se_nblks >> 1; - *used += sep->se_inuse >> 1; - } - - free(fsep); - - return 0; - } - - const char * - swap_free(void) - { - int total, used; - - if (getstats(&total, &used)) { - return NULL; - } - - return fmt_human((total - used) * 1024, 1024); - } - - const char * - swap_perc(void) - { - int total, used; - - if (getstats(&total, &used)) { - return NULL; - } - - if (total == 0) { - return NULL; - } - - return bprintf("%d", 100 * used / total); - } - - const char * - swap_total(void) - { - int total, used; - - if (getstats(&total, &used)) { - return NULL; - } - - return fmt_human(total * 1024, 1024); - } - - const char * - swap_used(void) - { - int total, used; - - if (getstats(&total, &used)) { - return NULL; - } - - return fmt_human(used * 1024, 1024); - } -#elif defined(__FreeBSD__) - #include <stdlib.h> - #include <sys/types.h> - #include <fcntl.h> - #include <unistd.h> - #include <kvm.h> - - static int getswapinfo(struct kvm_swap *swap_info, size_t size) - { - kvm_t *kd; - - kd = kvm_openfiles(NULL, "/dev/null", NULL, 0, NULL); - if(kd == NULL) { - warn("kvm_openfiles '/dev/null':"); - return 0; - } - - if(kvm_getswapinfo(kd, swap_info, size, 0 /* Unused flags */) == -1) { - warn("kvm_getswapinfo:"); - kvm_close(kd); - return 0; - } - - kvm_close(kd); - return 1; - } - - const char * - swap_free(void) - { - struct kvm_swap swap_info[1]; - long used, total; - - if(!getswapinfo(swap_info, 1)) - return NULL; - - total = swap_info[0].ksw_total; - used = swap_info[0].ksw_used; - - return fmt_human((total - used) * getpagesize(), 1024); - } - - const char * - swap_perc(void) - { - struct kvm_swap swap_info[1]; - long used, total; - - if(!getswapinfo(swap_info, 1)) - return NULL; - - total = swap_info[0].ksw_total; - used = swap_info[0].ksw_used; - - return bprintf("%d", used * 100 / total); - } - - const char * - swap_total(void) - { - struct kvm_swap swap_info[1]; - long total; - - if(!getswapinfo(swap_info, 1)) - return NULL; - - total = swap_info[0].ksw_total; - - return fmt_human(total * getpagesize(), 1024); - } - - const char * - swap_used(void) - { - struct kvm_swap swap_info[1]; - long used; - - if(!getswapinfo(swap_info, 1)) - return NULL; - - used = swap_info[0].ksw_used; - - return fmt_human(used * getpagesize(), 1024); - } -#endif |