From d07ee46919e3a8e42b3a8735e1152cc050165934 Mon Sep 17 00:00:00 2001
From: Erik Andersen <andersen@codepoet.org>
Date: Mon, 21 Feb 2000 21:26:32 +0000
Subject: Removed proc dependancies for init and free (which maintaining
exactly the same functionality). /proc takes up 90k of kernel space, so it
is nice to avoid using it at all costs. The only places where it is depended
on is for cetain optional mount/umount features, and for ps and lsmod. -Erik
---
procps/free.c | 32 +++++++++++++++++++++++++-------
1 file changed, 25 insertions(+), 7 deletions(-)
(limited to 'procps')
diff --git a/procps/free.c b/procps/free.c
index b07135430..78a36fe9a 100644
--- a/procps/free.c
+++ b/procps/free.c
@@ -23,15 +23,33 @@
#include "internal.h"
#include <stdio.h>
+#include <sys/sysinfo.h>
-
-#if ! defined BB_FEATURE_USE_PROCFS
-#error Sorry, I depend on the /proc filesystem right now.
-#endif
-
+#define DIVISOR 1024
extern int free_main(int argc, char **argv)
{
- char *cmd[] = { "cat", "/proc/meminfo", "\0" };
+ struct sysinfo info;
+ sysinfo(&info);
+ info.totalram/=DIVISOR;
+ info.freeram/=DIVISOR;
+ info.totalswap/=DIVISOR;
+ info.freeswap/=DIVISOR;
+ info.sharedram/=DIVISOR;
+ info.bufferram/=DIVISOR;
+
+
+ printf("%6s%13s%13s%13s%13s%13s\n", "", "total", "used", "free",
+ "shared", "buffers");
+
+ printf("%6s%13ld%13ld%13ld%13ld%13ld\n", "Mem:", info.totalram,
+ info.totalram-info.freeram, info.freeram,
+ info.sharedram, info.bufferram);
+
+ printf("%6s%13ld%13ld%13ld\n", "Swap:", info.totalswap,
+ info.totalswap-info.freeswap, info.freeswap);
- exit(cat_main(3, cmd));
+ printf("%6s%13ld%13ld%13ld\n", "Total:", info.totalram+info.totalswap,
+ (info.totalram-info.freeram)+(info.totalswap-info.freeswap),
+ info.freeram+info.freeswap);
+ exit(TRUE);
}
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