From: adilger <adilger>
Date: Tue, 12 Aug 2003 16:59:47 +0000 (+0000)
Subject: Add sleeping write/verification test to CVS.
X-Git-Tag: v1_7_0_51~2^7~695
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=c9aac9bf939b46f378135e46ae3c400f38fef7dd;p=fs%2Flustre-release.git

Add sleeping write/verification test to CVS.
usage: sleeptest [basename [sleeptime]]

Fixes a couple of bugs in the current test:
- assumes that there is 100 bytes after offset & ~4095 (fails at iter 233)
- assumes that "Line" appears in the output (fails if < 60 bytes read)
---

diff --git a/lustre/tests/sleeptest.c b/lustre/tests/sleeptest.c
new file mode 100644
index 0000000..d8beceb
--- /dev/null
+++ b/lustre/tests/sleeptest.c
@@ -0,0 +1,115 @@
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <time.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define BUFSIZE (4096)
+
+#define min(a,b) ((a) < (b) ? (a) : (b))
+
+int main(int argc, char *argv[])
+{
+
+	FILE *w_str;
+	int read_fd;
+	int rc, iter;
+	int line, delta, next;
+	int sleeptime = 0;
+	char *now_time;
+	const char ok_chars[] = "MonTueWedThuFriSatSun"
+				"JanFebMarAprMayJunJulAugSepOctNovDec"
+				"Line 0123456789 of file, written at:\n";
+
+	char buf_r[BUFSIZE];
+
+	char pathname[256] = "/mnt/lustre/linetest_";
+	char *host;
+
+	if (argc > 1) {
+		strncpy(pathname, argv[1], 255);
+		pathname[255] = '\0';
+	}
+
+	host = getenv("HOSTNAME");
+	if (host)
+		strcat(pathname, host);
+
+	if (argc > 2)
+		sleeptime = strtoul(argv[2], NULL, 0);
+
+	if (sleeptime == 0)
+		sleeptime = 30;
+
+	printf("Test file used is: %s at %ds intervals\n", pathname, sleeptime);
+
+	w_str = fopen(pathname, "wb");
+	if (w_str == NULL) {
+		perror("fopen");
+		exit(1);
+	}
+	read_fd = open(pathname, O_RDONLY);
+	if (read_fd < 0) {
+		perror("open");
+		exit(1);
+	}
+
+	next = 1;
+	delta = 17;
+	iter = 1;
+	while (1) {
+		time_t now;
+		struct tm *t;
+		long offset;
+
+		now = time((time_t *)NULL);
+		t = localtime(&now);
+		now_time = asctime(t);
+
+		printf("iter: %d\n", iter);
+
+		for (line=next; line<(next+delta); line++) {
+			rc = fprintf(w_str, "Line %8d of file, written at: %s",
+				     line, now_time);
+			/* \n comes from ctime() result */
+			if (rc <= 0) {
+				perror("fprintf");
+				exit(4);
+			}
+			rc = fflush(w_str);
+			if (rc != 0) {
+				perror("fflush");
+				exit(5);
+			}
+		}
+		next += delta;
+
+		/* Check for corruption */
+		offset = ftell(w_str);
+		rc = lseek(read_fd, offset & ~4095, SEEK_SET);
+		if (rc != (offset & ~4095)) {
+			perror("lseek");
+			exit(7);
+		}
+
+		rc = read(read_fd, buf_r, min(100, offset & 4095));
+		if (rc != min(100, offset & 4095)) {
+			printf("rc: %d, off %lu buf: '%s'\n", rc,offset,buf_r);
+			exit(8);
+		}
+		buf_r[rc] = 0;
+		/* Chars from "C" days/months, and above Line */
+		if (strspn(buf_r, ok_chars) != rc) {
+			printf("Corruption detected at %lu on %s",
+			       offset & ~4095, now_time);
+			exit(9);
+		}
+
+		sleep(sleeptime);
+		iter++;
+	}
+
+}