X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/16a97fbca129bca5656f76191c1b324b1649ec22..ab4f24a612fd40bb58b5504e979ad476533dd891:/components/ram.c?ds=sidebyside

diff --git a/components/ram.c b/components/ram.c
index 62e9807..8688349 100644
--- a/components/ram.c
+++ b/components/ram.c
@@ -4,54 +4,75 @@
 #include "../util.h"
 
 #if defined(__linux__)
+	#include <inttypes.h>
+
 	const char *
 	ram_free(void)
 	{
-		long free;
+		uint64_t free;
+
+		if (pscanf("/proc/meminfo",
+		           "MemTotal: %" PRIu64 " kB\n"
+		           "MemFree: %" PRIu64 " kB\n"
+		           "MemAvailable: %" PRIu64 " kB\n",
+		           &free, &free, &free) != 3) {
+			return NULL;
+		}
 
-		return (pscanf("/proc/meminfo", "MemFree: %ld kB\n", &free) == 1) ?
-		       bprintf("%f", (float)free / 1024 / 1024) : NULL;
+		return fmt_human(free * 1024, 1024);
 	}
 
 	const char *
 	ram_perc(void)
 	{
-		long total, free, buffers, cached;
-
-		return (pscanf("/proc/meminfo",
-		               "MemTotal: %ld kB\n"
-		               "MemFree: %ld kB\n"
-		               "MemAvailable: %ld kB\nBuffers: %ld kB\n"
-		               "Cached: %ld kB\n",
-		               &total, &free, &buffers, &buffers, &cached) == 5) ?
-		       bprintf("%d", 100 * ((total - free) - (buffers + cached)) /
-		               total) :
-		       NULL;
+		uint64_t total, free, buffers, cached;
+
+		if (pscanf("/proc/meminfo",
+		           "MemTotal: %" PRIu64 " kB\n"
+		           "MemFree: %" PRIu64 " kB\n"
+		           "MemAvailable: %" PRIu64 " kB\nBuffers: %ld kB\n"
+		           "Cached: %" PRIu64 " kB\n",
+		           &total, &free, &buffers, &buffers, &cached) != 5) {
+			return NULL;
+		}
+
+		if (total == 0) {
+			return NULL;
+		}
+
+		return bprintf("%d", 100 * ((total - free) -
+		                            (buffers + cached)) / total);
 	}
 
 	const char *
 	ram_total(void)
 	{
-		long total;
+		uint64_t total;
 
-		return (pscanf("/proc/meminfo", "MemTotal: %ld kB\n", &total) == 1) ?
-		       bprintf("%f", (float)total / 1024 / 1024) : NULL;
+		if (pscanf("/proc/meminfo", "MemTotal: %" PRIu64 " kB\n",
+		           &total) != 1) {
+			return NULL;
+		}
+
+		return fmt_human(total * 1024, 1024);
 	}
 
 	const char *
 	ram_used(void)
 	{
-		long total, free, buffers, cached;
-
-		return (pscanf("/proc/meminfo",
-		               "MemTotal: %ld kB\n"
-		               "MemFree: %ld kB\n"
-		               "MemAvailable: %ld kB\nBuffers: %ld kB\n"
-		               "Cached: %ld kB\n",
-		               &total, &free, &buffers, &buffers, &cached) == 5) ?
-		       bprintf("%f", (float)(total - free - buffers - cached) /
-		               1024 / 1024) :
-		       NULL;
+		uint64_t total, free, buffers, cached;
+
+		if (pscanf("/proc/meminfo",
+		           "MemTotal: %" PRIu64 " kB\n"
+		           "MemFree: %" PRIu64 " kB\n"
+		           "MemAvailable: %" PRIu64 " kB\nBuffers: %" PRIu64 " kB\n"
+		           "Cached: %" PRIu64 " kB\n",
+		           &total, &free, &buffers, &buffers, &cached) != 5) {
+			return NULL;
+		}
+
+		return fmt_human((total - free - buffers - cached) * 1024,
+		                 1024);
 	}
 #elif defined(__OpenBSD__)
 	#include <stdlib.h>
@@ -59,6 +80,9 @@
 	#include <sys/types.h>
 	#include <unistd.h>
 
+	#define LOG1024 	10
+	#define pagetok(size, pageshift) (size_t)(size << (pageshift - LOG1024))
+
 	inline int
 	load_uvmexp(struct uvmexp *uvmexp)
 	{
@@ -67,21 +91,23 @@
 
 		size = sizeof(*uvmexp);
 
-		return sysctl(uvmexp_mib, 2, uvmexp, &size, NULL, 0) >= 0 ? 1 : 0;
+		if (sysctl(uvmexp_mib, 2, uvmexp, &size, NULL, 0) >= 0) {
+			return 1;
+		}
+
+		return 0;
 	}
 
 	const char *
 	ram_free(void)
 	{
 		struct uvmexp uvmexp;
-		float free;
 		int free_pages;
 
 		if (load_uvmexp(&uvmexp)) {
 			free_pages = uvmexp.npages - uvmexp.active;
-			free = (double) (free_pages * uvmexp.pagesize) / 1024 /
-			       1024 / 1024;
-			return bprintf("%f", free);
+			return fmt_human(pagetok(free_pages, uvmexp.pageshift) *
+			                 1024, 1024);
 		}
 
 		return NULL;
@@ -105,12 +131,11 @@
 	ram_total(void)
 	{
 		struct uvmexp uvmexp;
-		float total;
 
 		if (load_uvmexp(&uvmexp)) {
-			total = (double) (uvmexp.npages * uvmexp.pagesize) /
-			        1024 / 1024 / 1024;
-			return bprintf("%f", total);
+			return fmt_human(pagetok(uvmexp.npages,
+			                         uvmexp.pageshift) * 1024,
+			                 1024);
 		}
 
 		return NULL;
@@ -120,12 +145,11 @@
 	ram_used(void)
 	{
 		struct uvmexp uvmexp;
-		float used;
 
 		if (load_uvmexp(&uvmexp)) {
-			used = (double) (uvmexp.active * uvmexp.pagesize) /
-			       1024 / 1024 / 1024;
-			return bprintf("%f", used);
+			return fmt_human(pagetok(uvmexp.active,
+			                         uvmexp.pageshift) * 1024,
+			                 1024);
 		}
 
 		return NULL;