From cc53eb8aee12e32861e6073d9e6bd7d015a15c55 Mon Sep 17 00:00:00 2001
From: http://ftp.de.debian.org/debian/pool/main/p/procps/procps_3.2.8-8.debian.tar.gz <info@debian.org>
Date: Fri, 19 Mar 2010 21:58:45 +0100
Subject: [PATCH 01/70] slabtop_once

---
 slabtop.c |   45 ++++++++++++++++++++++++++-------------------
 1 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/slabtop.c b/slabtop.c
index 36025e2..5c9d31e 100644
--- a/slabtop.c
+++ b/slabtop.c
@@ -268,11 +268,13 @@ static void parse_input(char c)
 	}
 }
 
+#define print_line(fmt, args...) if (run_once) printf(fmt, ## args); else printw(fmt, ## args)
 int main(int argc, char *argv[])
 {
 	int o;
 	unsigned short old_rows;
 	struct slab_info *slab_list = NULL;
+  int run_once=0;
 
 	struct option longopts[] = {
 		{ "delay",	1, NULL, 'd' },
@@ -306,6 +308,7 @@ int main(int argc, char *argv[])
 			sort_func = set_sort_func(optarg[0]);
 			break;
 		case 'o':
+      run_once=1;
 			delay = 0;
 			break;
 		case 'V':
@@ -322,11 +325,13 @@ int main(int argc, char *argv[])
 	if (tcgetattr(0, &saved_tty) == -1)
 		perror("tcgetattr");
 
-	initscr();
-	term_size(0);
 	old_rows = rows;
-	resizeterm(rows, cols);
-	signal(SIGWINCH, term_size);
+	term_size(0);
+  if (!run_once) {
+    initscr();
+	  resizeterm(rows, cols);
+	  signal(SIGWINCH, term_size);
+  }
 	signal(SIGINT, sigint_handler);
 
 	do {
@@ -340,13 +345,13 @@ int main(int argc, char *argv[])
 		if (get_slabinfo(&slab_list, &stats))
 			break;
 
-		if (old_rows != rows) {
+		if (!run_once && old_rows != rows) {
 			resizeterm(rows, cols);
 			old_rows = rows;
 		}
 
 		move(0,0);
-		printw(	" Active / Total Objects (%% used)    : %d / %d (%.1f%%)\n"
+		print_line(	" Active / Total Objects (%% used)    : %d / %d (%.1f%%)\n"
 			" Active / Total Slabs (%% used)      : %d / %d (%.1f%%)\n"
 			" Active / Total Caches (%% used)     : %d / %d (%.1f%%)\n"
 			" Active / Total Size (%% used)       : %.2fK / %.2fK (%.1f%%)\n"
@@ -361,14 +366,14 @@ int main(int argc, char *argv[])
 		slab_list = slabsort(slab_list);
 
 		attron(A_REVERSE);
-		printw(	"%6s %6s %4s %8s %6s %8s %10s %-23s\n",
+		print_line(	"%6s %6s %4s %8s %6s %8s %10s %-23s\n",
 			"OBJS", "ACTIVE", "USE", "OBJ SIZE", "SLABS",
 			"OBJ/SLAB", "CACHE SIZE", "NAME");
 		attroff(A_REVERSE);
 
 		curr = slab_list;
 		for (i = 0; i < rows - 8 && curr->next; i++) {
-			printw("%6u %6u %3u%% %7.2fK %6u %8u %9uK %-23s\n",
+			print_line("%6u %6u %3u%% %7.2fK %6u %8u %9uK %-23s\n",
 				curr->nr_objs, curr->nr_active_objs, curr->use,
 				curr->obj_size / 1024.0, curr->nr_slabs,
 				curr->objs_per_slab, (unsigned)(curr->cache_size / 1024),
@@ -376,22 +381,24 @@ int main(int argc, char *argv[])
 			curr = curr->next;
 		}
 
-		refresh();
 		put_slabinfo(slab_list);
 
-		FD_ZERO(&readfds);
-		FD_SET(0, &readfds);
-		tv.tv_sec = delay;
-		tv.tv_usec = 0;
-		if (select(1, &readfds, NULL, NULL, &tv) > 0) {
-			if (read(0, &c, 1) != 1)
-				break;
-			parse_input(c);
-		}
+		if (!run_once) {
+      refresh();
+		  FD_ZERO(&readfds);
+		  FD_SET(0, &readfds);
+		  tv.tv_sec = delay;
+		  tv.tv_usec = 0;
+		  if (select(1, &readfds, NULL, NULL, &tv) > 0) {
+			  if (read(0, &c, 1) != 1)
+				  break;
+			  parse_input(c);
+		  }
+    }
 	} while (delay);
 
 	tcsetattr(0, TCSAFLUSH, &saved_tty);
 	free_slabinfo(slab_list);
-	endwin();
+	if (!run_once) endwin();
 	return 0;
 }
-- 
1.7.0