- wmtop gets process information via procfs, but FreeBSD 5.x

  doesn't mount it by default. The 5.x users won't see any
  process shown by wmtop unless they mount procfs for some reasons.

PR:		78243
Submitted by:	Yi-Hsuan Hsin <mhsin AT mhsin dot org>

3 files changed, 135 insertions, 8 deletions

diff --git a/sysutils/wmtop/Makefile b/sysutils/wmtop/Makefile
index 4d8fd22cb17..ea32efc011b 100644
--- a/sysutils/wmtop/Makefile
+++ b/sysutils/wmtop/Makefile
@@ -17,13 +17,26 @@ COMMENT=	Windowmaker dock app to display top 3 CPU consuming processes
 USE_X_PREFIX=	yes
 USE_XPM=	yes
 ALL_TARGET=	freebsd
+USE_REINPLACE=	yes
 
 MAN1=		wmtop.1
 
+.if !defined(NOPORTDOCS)
+PORTDOCS=	BUGS CHANGES COPYING README TODO
+.endif
+
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} >= 500000
+post-patch:
+	${REINPLACE_CMD} -e 's/^\(LIBS.*\)/\1 -lkvm/' ${WRKSRC}/Makefile
+	${REINPLACE_CMD} -e 's/^\(FLAGS.*\)/\1 -DNO_PROCFS/' ${WRKSRC}/Makefile
+.endif
+
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/wmtop ${PREFIX}/bin/
 	${INSTALL_MAN} ${WRKSRC}/wmtop.1 ${PREFIX}/man/man1
-.ifndef(NOPORTDOCS)
+.if !defined(NOPORTDOCS)
 	@${INSTALL} -d -o ${SHAREOWN} -g ${SHAREGRP} -m 555 \
 		${PREFIX}/share/doc/${PORTNAME}
 .for file in BUGS CHANGES COPYING README TODO
@@ -32,4 +45,4 @@ do-install:
 .endfor
 .endif # !NOPORTDOCS
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>
diff --git a/sysutils/wmtop/files/patch-la b/sysutils/wmtop/files/patch-la
new file mode 100644
index 00000000000..7ce361ad404
--- /dev/null
+++ b/sysutils/wmtop/files/patch-la
@@ -0,0 +1,120 @@
+--- wmtop.c.orig	Wed Mar  7 05:30:56 2001
++++ wmtop.c	Fri Feb 25 22:34:36 2005
+@@ -70,6 +70,13 @@
+ #include "xpm/wmtop-neon2.xpm"
+ #include "xpm/wmtop-rainbow.xpm"
+ 
++#ifdef NO_PROCFS
++#include <kvm.h>
++#include <sys/sysctl.h>
++#include <sys/user.h>
++#include <sys/resource.h>
++#endif
++
+ /******************************************/
+ /* Defines                                */
+ /******************************************/
+@@ -191,6 +198,9 @@
+     int rss;
+     int time_stamp;
+     int counted;
++#ifdef NO_PROCFS
++    struct kinfo_proc *kp;
++#endif
+ };
+ 
+ /******************************************/
+@@ -455,17 +465,19 @@
+  * Anyone hoping to port wmtop should look here first.
+  */
+ int process_parse_procfs(struct process *process) {
++#if !defined(NO_PROCFS)
+     char line[WMTOP_BUFLENGTH],filename[WMTOP_BUFLENGTH],procname[WMTOP_BUFLENGTH];
+     int ps;
+     struct stat sbuf;
+-    int user_time,kernel_time;
+     int rc;
++#endif
++    int user_time,kernel_time;
+ #if defined(LINUX)
+     char *r,*q;
+     char deparenthesised_name[WMTOP_BUFLENGTH];
+ 		int endl;
+ #endif /* defined(LINUX) */
+-#if defined(FREEBSD)
++#if defined(FREEBSD) && !defined(NO_PROCFS)
+     int us,um,ks,km;
+ #endif /* defined(FREEBSD) */
+ 
+@@ -473,6 +485,15 @@
+     assert(process->id==0x0badfeed);
+ #endif /* defined(PARANOID) */
+ 
++#if defined(NO_PROCFS)
++#define GETV(u) ((u).tv_sec * 1000 + (u).tv_usec / 1000)
++    process->time_stamp = g_time;
++    if(process->name)
++        wmtop_free(process->name);
++    process->name = wmtop_strdup(process->kp->ki_comm);
++    process->user_time = GETV(process->kp->ki_rusage.ru_utime);
++    process->kernel_time = GETV(process->kp->ki_rusage.ru_stime);
++#else
+     sprintf(filename,PROCFS_TEMPLATE,process->pid);
+ 
+     /*
+@@ -582,6 +603,7 @@
+     process->user_time = us*1000+um/1000;
+     process->kernel_time = ks*1000+km/1000;
+ #endif /* defined(FREEBSD) */
++#endif /* defined(NO_PROCFS) */
+ 
+     process->rss *= getpagesize();
+ 
+@@ -607,6 +629,39 @@
+ /******************************************/
+ 
+ int update_process_table() {
++#if defined(NO_PROCFS)
++    kvm_t *kd;
++    int n;
++    struct kinfo_proc *p;
++
++    if((kd = kvm_open(NULL, "/dev/null", NULL, O_RDONLY, "wmtop")) == NULL)
++        return 1;
++
++    if((p = kvm_getprocs(kd, KERN_PROC_ALL, 0, &n)) == NULL)
++        return 1;
++
++    for(; n > 0; n --, p ++)
++    {
++      char **argv;
++      struct process *pp;
++
++      if((argv = kvm_getargv(kd, p, 0)) == NULL ||
++         argv[0] == NULL)
++        continue;
++
++      pp = find_process(p->ki_pid);
++      if(!pp)
++          pp = new_process(p->ki_pid);
++
++      pp->kp = p;
++      calculate_cpu(pp);
++    }
++
++    if(kvm_close(kd) != 0)
++        return 1;
++
++    return 0;
++#else
+     DIR *dir;
+     struct dirent *entry;
+ 
+@@ -640,6 +695,7 @@
+     closedir(dir);
+ 
+     return 0;
++#endif /* defined(NO_PROCFS) */
+ }
+ 
+ /******************************************/
diff --git a/sysutils/wmtop/pkg-plist b/sysutils/wmtop/pkg-plist
index ba94c0180d1..4aa7c47bc87 100644
--- a/sysutils/wmtop/pkg-plist
+++ b/sysutils/wmtop/pkg-plist
@@ -1,7 +1 @@
 bin/wmtop
-%%PORTDOCS%%share/doc/wmtop/BUGS
-%%PORTDOCS%%share/doc/wmtop/CHANGES
-%%PORTDOCS%%share/doc/wmtop/COPYING
-%%PORTDOCS%%share/doc/wmtop/README
-%%PORTDOCS%%share/doc/wmtop/TODO
-%%PORTDOCS%%@dirrm share/doc/wmtop