New port: wmmemfree

WMMemFree shows system memory usage.  It runs as a dockapp for window
manager like WindowMaker or some other which supports dockapps.  On
the top side you have your physical memory usage and on the bottom there
is your swap space usage.

Submitted by:	Alexey Dokuchaev

sysutils/Makefile

@@ -280,6 +280,7 @@
     SUBDIR += wminet
     SUBDIR += wmlmmon
     SUBDIR += wmlongrun
+    SUBDIR += wmmemfree
     SUBDIR += wmmemload
     SUBDIR += wmmemmon
     SUBDIR += wmmon

sysutils/wmmemfree/Makefile

@@ -0,0 +1,32 @@
+# New ports collection makefile for:	wmmemfree
+# Date created:				29 Mar 2003
+# Whom:					Alexey Dokuchaev <danfe@regency.nsu.ru>
+#
+# $FreeBSD$
+#
+
+PORTNAME=	wmmemfree
+PORTVERSION=	0.7
+CATEGORIES=	sysutils windowmaker
+MASTER_SITES=	http://ibiblio.org/pub/linux/X11/xutils/ \
+		ftp://ftp.ibiblio.org/pub/linux/X11/xutils/
+
+MAINTAINER=	danfe@regency.nsu.ru
+COMMENT=	Memory and swap monitoring dockapp
+
+USE_BZIP2=	yes
+USE_X_PREFIX=	yes
+USE_XPM=	yes
+
+MAN1=		${PORTNAME}.1
+
+post-patch:
+	@${CP} ${FILESDIR}/mem_freebsd.* ${WRKSRC}
+
+do-install:
+	@${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${PREFIX}/bin
+	@${CHMOD} g+s ${PREFIX}/bin/${PORTNAME}
+	@${CHOWN} root:kmem ${PREFIX}/bin/${PORTNAME}
+	@${INSTALL_MAN} ${WRKSRC}/${PORTNAME}.1 ${MANPREFIX}/man/man1
+
+.include <bsd.port.mk>

sysutils/wmmemfree/distinfo

@@ -0,0 +1 @@
+MD5 (wmmemfree-0.7.tar.bz2) = 6b478209d907dd2955828e71319af757

sysutils/wmmemfree/files/mem_freebsd.c

@@ -0,0 +1,125 @@
+/*
+ *  mem_freebsd.c - get memory status
+ *
+ *  Copyright (C) 2003 Alexey Dokuchaev <danfe@regency.nsu.ru>
+ *	Parts are Copyright (C) 1993-2003 FreeBSD Project
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#include <sys/types.h>
+#include <sys/vmmeter.h>
+#include <fcntl.h>
+#include <kvm.h>
+#include <nlist.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "mem_freebsd.h"
+
+long long int mem_total, mem_used, mem_free, mem_buffers, mem_cached;
+long long int swp_total, swp_used, swp_free;
+
+static kvm_t *kd;
+struct nlist nlst[] = { {"_cnt"}, {"_bufspace"}, {0} };
+
+void
+mem_init(void)
+{
+	int pagesize;
+
+	if (!(kd = kvm_open(NULL, NULL, NULL, O_RDONLY, "kvm_open")))
+	{
+		perror("kvm_open");
+		exit(1);
+	}
+
+	kvm_nlist(kd, nlst);
+
+	if (!nlst[0].n_type)
+	{
+		perror("kvm_nlist");
+		exit(1);
+	}
+
+	seteuid(getuid());
+	setegid(getgid());
+
+	if (geteuid() != getuid() || getegid() != getgid())
+	{
+		perror("sete?id");
+		exit(1);
+	}
+}
+
+void
+mem_getfree()
+{
+	struct vmmeter vm;
+	struct kvm_swap sw;
+	int bufspace = 0;
+	unsigned long cnt_offset;
+	unsigned long bufspace_offset;
+
+	static int firsttime = 1;
+	static int pagesin = -1;
+	static int pagesout = -1;
+	static time_t lasttime = 0;
+	time_t curtime;
+
+	if ((kvm_read(kd, nlst[0].n_value, &vm, sizeof(vm))
+		!= sizeof(vm)) ||
+	    (kvm_read(kd, nlst[1].n_value, &bufspace, sizeof(bufspace))
+		!= sizeof(bufspace)))
+	{
+		perror("kvm_read");
+		exit(1);
+	}
+
+	mem_total = vm.v_page_count;
+	mem_free = vm.v_free_count;
+	mem_used = mem_total - mem_free;
+	mem_cached = vm.v_cache_count;
+	mem_buffers = bufspace / vm.v_page_size;
+
+	/*
+	 * Only calculate when first time or when changes took place.
+	 * Do not call it more than 1 time per 2 seconds; otherwise
+	 * it can eat up to 50% of CPU time on heavy swap activity.
+	 */
+
+	curtime = time(NULL);
+
+	if (firsttime ||
+	    (((vm.v_swappgsin > pagesin) ||
+	    (vm.v_swappgsout > pagesout))
+		&& curtime > lasttime + 1))
+	{
+		if (kvm_getswapinfo(kd, &sw, 1, 0) >= 0 &&
+			sw.ksw_total)
+		{
+			swp_total = sw.ksw_total;
+			swp_used = sw.ksw_used;
+			swp_free = swp_total - swp_used;
+		}
+		firsttime = 0;
+		lasttime = curtime;
+	}
+	pagesin = vm.v_swappgsin;
+	pagesout = vm.v_swappgsout;
+}

sysutils/wmmemfree/files/mem_freebsd.h

@@ -0,0 +1,32 @@
+/*
+ *  mem_freebsd.h
+ *
+ *  Copyright (C) 2003 Alexey Dokuchaev <danfe@regency.nsu.ru>
+ *	Parts are Copyright (C) 1993-2003 FreeBSD Project
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __MEM_FREEBSD_H__
+#define __MEM_FREEBSD_H__
+
+extern long long int mem_total, mem_used;
+extern long long int mem_shared, mem_buffers, mem_cached;
+extern long long int swp_total, swp_used;
+
+void mem_init();
+void mem_getfree();
+
+#endif /* __MEM_FREEBSD_H__ */

sysutils/wmmemfree/files/patch-Makefile

@@ -0,0 +1,54 @@
+--- Makefile.orig	Sat Mar 22 02:59:07 2003
++++ Makefile	Fri Apr 11 12:50:48 2003
+@@ -1,38 +1,17 @@
+-#Makefile
++CC ?=	cc
++LDIR =	-L${X11BASE}/lib
++IDIR =	-I${X11BASE}/include
+ 
+-PROG=wmmemfree
+-OBJS=dockapp.o draw.o mem_linux.o options.o wmmemfree.o
++LIBS =	-lX11 -lXpm -lXext -lkvm
+ 
+-PREFIX=/usr/local
+-BINDIR=$(PREFIX)/bin
+-MANUALDIR=$(PREFIX)/share/man/man1
+-CC=gcc
+-STRIP=strip
+-FLAGS=-Wall -O2
+-RM=rm -f
+-INST=install
+-MANUAL=$(PROG).1
+-LIBS=-L/usr/X11R6/lib -lX11 -lXext -lXpm
++OBJS =	dockapp.o\
++	draw.o\
++	mem_freebsd.o\
++	options.o\
++	wmmemfree.o
+ 
+-all: $(PROG)
++.c.o:
++	${CC} ${CFLAGS} ${IDIR} ${DEFS} -c $< -o $*.o
+ 
+-$(PROG): $(OBJS)
+-	$(CC) -o $(PROG) $(OBJS) $(LIBS)
+-	$(STRIP) $(PROG)
+-%.o: %.c
+-	$(CC) $(FLAGS) -c $< -o $@
+-clean:
+-	$(RM) $(OBJS) $(PROG)
+-install: $(PROG)
+-	$(INST) -m 755 $(PROG) $(BINDIR)
+-	$(INST) -m 644 $(MANUAL) $(MANUALDIR)
+-uninstall:
+-	$(RM) $(BINDIR)/$(PROG)
+-	$(RM) $(MANUALDIR)/$(MANUAL)
+-
+-dockapp.o: dockapp.c wmmemfree.h options.h draw.h xpm/bg.xpm xpm/on.xpm \
+-  xpm/off.xpm xpm/numbers.xpm xpm/panel.xpm
+-draw.o: draw.c dockapp.h draw.h mem_linux.h options.h
+-mem_linux.o: mem_linux.c
+-options.o: options.c wmmemfree.h options.h
+-wmmemfree.o: wmmemfree.c wmmemfree.h dockapp.h draw.h options.h
++all:	${OBJS}
++	${CC} ${CFLAGS} -o wmmemfree ${OBJS} ${LDIR} ${LIBS}

sysutils/wmmemfree/files/patch-draw.c

@@ -0,0 +1,11 @@
+--- draw.c.orig	Fri Apr 11 12:47:47 2003
++++ draw.c	Fri Apr 11 12:47:54 2003
+@@ -24,7 +24,7 @@
+ 
+ #include "dockapp.h"
+ #include "draw.h"
+-#include "mem_linux.h"
++#include "mem_freebsd.h"
+ #include "options.h"
+ 
+ void draw_window()

sysutils/wmmemfree/files/patch-wmmemfree.c

@@ -0,0 +1,16 @@
+--- wmmemfree.c.orig	Fri Apr 11 12:48:52 2003
++++ wmmemfree.c	Fri Apr 11 12:50:05 2003
+@@ -43,10 +43,11 @@
+ {
+  struct itimerval tv;
+ 
++ mem_init();
+  tv.it_value.tv_sec = 2; /* give 2 seconds for safety */
+  tv.it_value.tv_usec = 0;
+- tv.it_interval.tv_sec = 0;
+- tv.it_interval.tv_usec = opt_milisecs * 1000;
++ tv.it_interval.tv_sec = opt_milisecs / 1000;
++ tv.it_interval.tv_usec = (opt_milisecs % 1000) * 1000;
+  signal(SIGALRM, handle_timer);
+  setitimer(ITIMER_REAL, &tv, NULL);
+ }

sysutils/wmmemfree/pkg-descr

@@ -0,0 +1,4 @@
+WMMemFree shows system memory usage.  It runs as a dockapp for window
+manager like WindowMaker or some other which supports dockapps.  On
+the top side you have your physical memory usage and on the bottom there
+is your swap space usage.

sysutils/wmmemfree/pkg-plist

@@ -0,0 +1 @@
+bin/wmmemfree