The cpulimit program throttles back a process's CPU usage. This allows the

user to slow down jobs that would otherwise choke the processor. It is also
helpful on laptops where we want to avoid genrating a lot of heat.

WWW:	http://cpulimit.sourceforge.net/

PR:		ports/156064
Submitted by:	Jesse <jessefrgsmith@yahoo.ca>

5 files changed, 108 insertions, 0 deletions

diff --git a/sysutils/cpulimit/Makefile b/sysutils/cpulimit/Makefile
new file mode 100644
index 000000000000..0b7339d8eee4
--- /dev/null
+++ b/sysutils/cpulimit/Makefile
@@ -0,0 +1,23 @@
+# New ports collection makefile for:	cpulimit
+# Date created:				April 1, 2011
+# Whom:					Jesse
+#
+# $FreeBSD$
+#
+
+PORTNAME=	cpulimit
+PORTVERSION=	1.1
+CATEGORIES=	sysutils
+MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}/${PORTNAME}/
+
+MAINTAINER=	jessefrgsmith@yahoo.ca
+COMMENT=	A program to limit the CPU usage of a process
+
+PLIST_FILES=	bin/${PORTNAME}
+
+do-install:
+	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${PREFIX}/bin/
+.if !defined(NOPORTDOCS)
+.endif
+
+.include <bsd.port.mk>
diff --git a/sysutils/cpulimit/distinfo b/sysutils/cpulimit/distinfo
new file mode 100644
index 000000000000..848e0a69fb05
--- /dev/null
+++ b/sysutils/cpulimit/distinfo
@@ -0,0 +1,2 @@
+SHA256 (cpulimit-1.1.tar.gz) = ee734e82692dc496a083c003340b326bd779567f5de99fcae99e451606c85c00
+SIZE (cpulimit-1.1.tar.gz) = 5130
diff --git a/sysutils/cpulimit/files/patch-cpulimit.c b/sysutils/cpulimit/files/patch-cpulimit.c
new file mode 100644
index 000000000000..c6d1b5c47658
--- /dev/null
+++ b/sysutils/cpulimit/files/patch-cpulimit.c
@@ -0,0 +1,59 @@
+--- cpulimit.c.orig	2010-08-20 19:35:15.000000000 -0300
++++ cpulimit.c	2010-08-21 14:17:52.000000000 -0300
+@@ -43,6 +43,15 @@
+ #include <errno.h>
+ #include <string.h>
+ 
++#include <limits.h>
++#include <fcntl.h>
++#include <kvm.h>
++#include <paths.h>
++#include <sys/param.h>
++#include <sys/sysctl.h>
++#include <sys/user.h>
++
++
+ //kernel time resolution (inverse of one jiffy interval) in Hertz
+ //i don't know how to detect it, then define to the default (not very clean!)
+ #define HZ 100
+@@ -235,6 +244,31 @@
+ }
+ 
+ //get jiffies count from /proc filesystem
++int getjiffies(int pid)
++{
++   kvm_t *my_kernel = NULL;
++   struct kinfo_proc *process_data = NULL;
++   int processes;
++   int my_jiffies = -1;
++
++   my_kernel = kvm_open(0, 0, 0, O_RDONLY, "kvm_open");
++   if (! my_kernel)
++   {
++      printf("Error opening kernel vm. You should be running as root.\n");
++      return -1;
++   }
++
++   process_data = kvm_getprocs(my_kernel, KERN_PROC_PID, pid, &processes);
++   if ( (process_data) && (processes >= 1) )
++       my_jiffies = process_data->ki_runtime;
++   
++   kvm_close(my_kernel);
++   if (my_jiffies >= 0)
++     my_jiffies /= 1000;
++   return my_jiffies;
++}
++
++/*
+ int getjiffies(int pid) {
+ 	static char stat[20];
+ 	static char buffer[1024];
+@@ -255,6 +289,8 @@
+ 	int ktime=atoi(p+1);
+ 	return utime+ktime;
+ }
++*/
++
+ 
+ //process instant photo
+ struct process_screenshot {
diff --git a/sysutils/cpulimit/files/patch-makefile b/sysutils/cpulimit/files/patch-makefile
new file mode 100644
index 000000000000..426bf3a20fd0
--- /dev/null
+++ b/sysutils/cpulimit/files/patch-makefile
@@ -0,0 +1,19 @@
+--- Makefile.old	2005-06-24 07:53:43.000000000 -0300
++++ Makefile	2010-08-21 15:10:45.000000000 -0300
+@@ -1,7 +1,15 @@
++PREFIX=/usr/local
++
+ all::	cpulimit
+ 
+ cpulimit:	cpulimit.c
+-	gcc -o cpulimit cpulimit.c -lrt -Wall -O2
++	gcc -o cpulimit cpulimit.c -lrt -Wall -O2 -lkvm
++
++install: cpulimit
++	cp cpulimit ${PREFIX}/bin
++
++deinstall:
++	rm -f ${PREFIX}/bin/cpulimit
+ 
+ clean:
+ 	rm -f *~ cpulimit
diff --git a/sysutils/cpulimit/pkg-descr b/sysutils/cpulimit/pkg-descr
new file mode 100644
index 000000000000..6a969159a6d7
--- /dev/null
+++ b/sysutils/cpulimit/pkg-descr
@@ -0,0 +1,5 @@
+The cpulimit program throttles back a process's CPU usage. This allows the
+user to slow down jobs that would otherwise choke the processor. It is also
+helpful on laptops where we want to avoid genrating a lot of heat.
+
+WWW:	http://cpulimit.sourceforge.net/