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-rw-r--r--components/swap.c260
1 files changed, 137 insertions, 123 deletions
diff --git a/components/swap.c b/components/swap.c
index f3bbeb2..08a97de 100644
--- a/components/swap.c
+++ b/components/swap.c
@@ -1,138 +1,152 @@
/* See LICENSE file for copyright and license details. */
#if defined(__linux__)
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-
-#include "../util.h"
-
-const char *
-swap_free(void)
-{
- long total, free;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- fprintf(stderr, "fopen '/proc/meminfo': %s\n", strerror(errno));
- return NULL;
- }
-
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- fprintf(stderr, "fread '/proc/meminfo': %s\n", strerror(errno));
+ #include <errno.h>
+ #include <stdio.h>
+ #include <string.h>
+
+ #include "../util.h"
+
+ const char *
+ swap_free(void)
+ {
+ long total, free;
+ FILE *fp;
+ size_t bytes_read;
+ char *match;
+
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ fprintf(stderr, "fopen '/proc/meminfo': %s\n",
+ strerror(errno));
+ return NULL;
+ }
+
+ if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1,
+ fp)) == 0) {
+ fprintf(stderr, "fread '/proc/meminfo': %s\n",
+ strerror(errno));
+ fclose(fp);
+ return NULL;
+ }
fclose(fp);
- return NULL;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return NULL;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapFree")) == NULL)
- return NULL;
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return bprintf("%f", (float)free / 1024 / 1024);
-}
-
-const char *
-swap_perc(void)
-{
- long total, free, cached;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- fprintf(stderr, "fopen '/proc/meminfo': %s\n", strerror(errno));
- return NULL;
+
+ if ((match = strstr(buf, "SwapTotal")) == NULL)
+ return NULL;
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+
+ if ((match = strstr(buf, "SwapFree")) == NULL)
+ return NULL;
+ sscanf(match, "SwapFree: %ld kB\n", &free);
+
+ return bprintf("%f", (float)free / 1024 / 1024);
}
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- fprintf(stderr, "fread '/proc/meminfo': %s\n", strerror(errno));
+ const char *
+ swap_perc(void)
+ {
+ long total, free, cached;
+ FILE *fp;
+ size_t bytes_read;
+ char *match;
+
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ fprintf(stderr, "fopen '/proc/meminfo': %s\n",
+ strerror(errno));
+ return NULL;
+ }
+
+ if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1,
+ fp)) == 0) {
+ fprintf(stderr, "fread '/proc/meminfo': %s\n",
+ strerror(errno));
+ fclose(fp);
+ return NULL;
+ }
fclose(fp);
- return NULL;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return NULL;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- if ((match = strstr(buf, "SwapCached")) == NULL)
- return NULL;
- sscanf(match, "SwapCached: %ld kB\n", &cached);
-
- if ((match = strstr(buf, "SwapFree")) == NULL)
- return NULL;
- sscanf(match, "SwapFree: %ld kB\n", &free);
-
- return bprintf("%d", 100 * (total - free - cached) / total);
-}
-
-const char *
-swap_total(void)
-{
- long total;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- fprintf(stderr, "fopen '/proc/meminfo': %s\n", strerror(errno));
- return NULL;
+
+ if ((match = strstr(buf, "SwapTotal")) == NULL)
+ return NULL;
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+
+ if ((match = strstr(buf, "SwapCached")) == NULL)
+ return NULL;
+ sscanf(match, "SwapCached: %ld kB\n", &cached);
+
+ if ((match = strstr(buf, "SwapFree")) == NULL)
+ return NULL;
+ sscanf(match, "SwapFree: %ld kB\n", &free);
+
+ return bprintf("%d", 100 * (total - free - cached) / total);
}
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- fprintf(stderr, "fread '/proc/meminfo': %s\n", strerror(errno));
+
+ const char *
+ swap_total(void)
+ {
+ long total;
+ FILE *fp;
+ size_t bytes_read;
+ char *match;
+
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ fprintf(stderr, "fopen '/proc/meminfo': %s\n",
+ strerror(errno));
+ return NULL;
+ }
+ if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1,
+ fp)) == 0) {
+ fprintf(stderr, "fread '/proc/meminfo': %s\n",
+ strerror(errno));
+ fclose(fp);
+ return NULL;
+ }
fclose(fp);
- return NULL;
- }
- fclose(fp);
-
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return NULL;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
-
- return bprintf("%f", (float)total / 1024 / 1024);
-}
-
-const char *
-swap_used(void)
-{
- long total, free, cached;
- FILE *fp;
- size_t bytes_read;
- char *match;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- fprintf(stderr, "fopen '/proc/meminfo': %s\n", strerror(errno));
- return NULL;
+
+ if ((match = strstr(buf, "SwapTotal")) == NULL)
+ return NULL;
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
+
+ return bprintf("%f", (float)total / 1024 / 1024);
}
- if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1, fp)) == 0) {
- fprintf(stderr, "fread '/proc/meminfo': %s\n", strerror(errno));
+
+ const char *
+ swap_used(void)
+ {
+ long total, free, cached;
+ FILE *fp;
+ size_t bytes_read;
+ char *match;
+
+ fp = fopen("/proc/meminfo", "r");
+ if (fp == NULL) {
+ fprintf(stderr, "fopen '/proc/meminfo': %s\n",
+ strerror(errno));
+ return NULL;
+ }
+ if ((bytes_read = fread(buf, sizeof(char), sizeof(buf) - 1,
+ fp)) == 0) {
+ fprintf(stderr, "fread '/proc/meminfo': %s\n",
+ strerror(errno));
+ fclose(fp);
+ return NULL;
+ }
fclose(fp);
- return NULL;
- }
- fclose(fp);
- if ((match = strstr(buf, "SwapTotal")) == NULL)
- return NULL;
- sscanf(match, "SwapTotal: %ld kB\n", &total);
+ if ((match = strstr(buf, "SwapTotal")) == NULL)
+ return NULL;
+ sscanf(match, "SwapTotal: %ld kB\n", &total);
- if ((match = strstr(buf, "SwapCached")) == NULL)
- return NULL;
- sscanf(match, "SwapCached: %ld kB\n", &cached);
+ if ((match = strstr(buf, "SwapCached")) == NULL)
+ return NULL;
+ sscanf(match, "SwapCached: %ld kB\n", &cached);
- if ((match = strstr(buf, "SwapFree")) == NULL)
- return NULL;
- sscanf(match, "SwapFree: %ld kB\n", &free);
+ if ((match = strstr(buf, "SwapFree")) == NULL)
+ return NULL;
+ sscanf(match, "SwapFree: %ld kB\n", &free);
- return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
-}
+ return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
+ }
+#elif defined(__OpenBSD__)
+ /* unimplemented */
#endif
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