Linux Device Drivers 3 examples

1 files changed, 38 insertions, 0 deletions

diff --git a/misc-progs/load50.c b/misc-progs/load50.c
new file mode 100644
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+++ b/misc-progs/load50.c
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+/*
+ * load50.c -- a simple busy-looping tool. 
+ * Obviously, this runs with any kernel and any Unix
+ *
+ * Copyright (C) 2001 Alessandro Rubini and Jonathan Corbet
+ * Copyright (C) 2001 O'Reilly & Associates
+ *
+ * The source code in this file can be freely used, adapted,
+ * and redistributed in source or binary form, so long as an
+ * acknowledgment appears in derived source files.  The citation
+ * should list that the code comes from the book "Linux Device
+ * Drivers" by Alessandro Rubini and Jonathan Corbet, published
+ * by O'Reilly & Associates.   No warranty is attached;
+ * we cannot take responsibility for errors or fitness for use.
+ */ 
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int main(int argc, char **argv)
+{
+	int i, load=50;
+
+	if (argc==2) {
+		load=atoi(argv[1]);
+	}
+	printf("Bringing load to %i\n",load);
+  
+	for (i=0; i<load; i++)
+		if (fork()==0)
+			break;
+
+	while(1)
+		;
+	return 0;
+}
+