From 9c2f40441e0cc909ebefe432ddc10e2de29b82ac Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Mon, 7 Sep 2020 00:17:04 +0200
Subject: Added wait syscall.

This makes a process sleep until it receives a new message (no polling!).
I thought that this will result in performance improvements but I haven't
noticed any, yet. Maybe I'll remove this again in the future..
---
 apps/init.c       | 3 +++
 apps/mandelbrot.c | 3 +--
 apps/wm.c         | 4 ++--
 3 files changed, 6 insertions(+), 4 deletions(-)

(limited to 'apps')

diff --git a/apps/init.c b/apps/init.c
index ba6f93e..ccf88dd 100644
--- a/apps/init.c
+++ b/apps/init.c
@@ -13,5 +13,8 @@ int main(int argc, char **argv)
 	/* int test = exec("/window", "test", NULL); */
 	int mandelbrot = exec("/mandelbrot", "mandelbrot", NULL);
 
+	while (1) {
+		yield();
+	};
 	return wm + mandelbrot;
 }
diff --git a/apps/mandelbrot.c b/apps/mandelbrot.c
index d5b8ae0..9f73501 100644
--- a/apps/mandelbrot.c
+++ b/apps/mandelbrot.c
@@ -49,7 +49,6 @@ void draw_mandelbrot(struct window *win, int resolution)
 	}
 	gui_redraw();
 	print("Rendered mandelbrot successfully\n");
-	yield();
 }
 
 int main()
@@ -62,7 +61,7 @@ int main()
 	draw_mandelbrot(win, 50);
 
 	while (1) {
-		yield();
+		wait();
 	};
 
 	return 0;
diff --git a/apps/wm.c b/apps/wm.c
index 477eb7f..d4db938 100644
--- a/apps/wm.c
+++ b/apps/wm.c
@@ -12,7 +12,7 @@
 #include <sys.h>
 #include <vesa.h>
 
-#define MOUSE_SKIP 4 // => Every nth move gets skipped
+#define MOUSE_SKIP 5 // => Every move % n != 0 gets skipped
 
 static struct vbe *vbe;
 static struct window *direct; // Direct video memory window
@@ -84,7 +84,7 @@ int main(int argc, char **argv)
 	int mouse_skip = 0;
 	while (1) {
 		if (!(msg = msg_receive())) {
-			yield();
+			wait();
 			continue;
 		}
 
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