From: adilger <adilger>
Date: Wed, 19 May 2004 19:48:54 +0000 (+0000)
Subject: Test to exercise htree rename bug.
X-Git-Tag: v1_8_0_110~486^5~213
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=38a1998f5c2fcec3942e71c7cbfbf8ef937a396e;p=fs%2Flustre-release.git

Test to exercise htree rename bug.
b=3417
---

diff --git a/lustre/tests/rename_many.c b/lustre/tests/rename_many.c
new file mode 100644
index 0000000..0599727
--- /dev/null
+++ b/lustre/tests/rename_many.c
@@ -0,0 +1,163 @@
+#define PATH_LENGTH 35
+#include <math.h>
+#include <signal.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <stdlib.h>
+
+int count = 1000;
+
+struct names {
+	char from[PATH_LENGTH];
+	char to[PATH_LENGTH];
+} *names;
+
+int loops = 0;
+int stop = 0;
+long start;
+
+int creat_errors = 0;
+int rename_errors = 0;
+int unlink_errors = 0;
+
+void handler(int sig) {
+	static long last_time;
+	long now = time(0);
+
+	signal(SIGINT, handler);
+	signal(SIGALRM, handler);
+	printf("%6ld sec %14d iterations errors %d/%d/%d - "
+	       "Use SIGQUIT (^\\) to kill\n", now - start, loops,
+	       creat_errors, rename_errors, unlink_errors);
+
+	if (sig == SIGQUIT)
+		stop = 1;
+	else if (sig == SIGALRM)
+		alarm(60);
+	else if (sig == SIGINT) {
+		if (last_time - now < 2)
+			stop = 1;
+		last_time = now;
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	int i;
+	unsigned long n;
+	int h1, h2;
+
+	names = malloc(sizeof(struct names) * count);
+	if (names == NULL) {
+		perror("calloc");
+		return(1);
+	}
+
+	h2 = sprintf(names[0].from, "%x", count); /* just to figure length */
+	h1 = (PATH_LENGTH-h2-2)/4;
+
+	n = 1 << h1 * 4;
+
+	printf("h1 = %d, h2 = %d n = %lu\n", h1, h2, n);
+
+	start = time(0);
+	srand(start);
+
+	signal(SIGQUIT, handler);
+	signal(SIGINT, handler);
+	signal(SIGALRM, handler);
+	alarm(60);
+
+	while (!stop) {
+		int j,k,l,m;
+
+		if (mkdir("tmp", S_IRWXU) == -1) {
+			perror("mkdir");
+			return(1);
+		}
+		if (chdir("tmp") == -1) {
+			perror("chdir");
+			return(1);
+		}
+
+		for (i = 0; i < count ; i++) {
+			j = random() & (n - 1);
+			k = random() & (n - 1);
+			l = random() & (n - 1);
+			m = random() & (n - 1);
+			sprintf(names[i].from, "%0*x%0*x%0*x%0*x0%0*x",
+				h1, j, h1, k, h1, l, h1, m, h2, i);
+			sprintf(names[i].to, "%0*x%0*x%0*x%0*x1%0*x",
+				h1, j, h1, k, h1, l, h1, m, h2, i);
+
+		}
+
+		for (i = 0; i < count; i++) {
+			int fd;
+			if ((fd = creat(names[i].from, S_IRUSR|S_IWUSR)) == -1){
+				char msg[100];
+				sprintf(msg, "creat %s", names[i].from);
+				perror(msg);
+				creat_errors++;
+			}
+			if (close(fd) == -1) {
+				perror("close");
+				return(1);
+			}
+		}
+
+		for (i = 0; i < count; i++) {
+			if (rename(names[i].from, names[i].to) == -1) {
+				char msg[100];
+				sprintf(msg, "rename %s to %s",
+					names[i].from, names[i].to);
+				perror(msg);
+				rename_errors++;
+			}
+		}
+
+		for (i = 0; i < count; i++) {
+			if (unlink(names[i].to) == -1) {
+				char msg[100];
+				sprintf(msg, "unlink %s", names[i].to);
+				perror(msg);
+				unlink_errors++;
+			}
+		}
+
+		if (chdir("..") == -1) {
+			perror("chdir");
+			return(1);
+		}
+
+		if (rmdir("tmp") == -1) {
+			if (chdir("tmp") == -1) {
+				perror("chdir");
+				return(1);
+			}
+			for (i = 0; i < count; i++) {
+				if (unlink(names[i].from) != -1) {
+					fprintf(stderr, "Unexpected file %s\n",
+						names[i].to);
+					unlink_errors++;
+				}
+			}
+			if (chdir("..") == -1) {
+				perror("chdir");
+				return(1);
+			}
+			if (rmdir("tmp") == -1) {
+				perror("rmdir");
+				return(1);
+			}
+		}
+
+		loops++;
+	}
+
+	return(0);
+}