X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Ftests%2Fwriteme.c;h=bf5c971e611815bc8a6ee2baa2ee1169397a5d06;hb=301db1b716f2f5cc395817fcf1b322ae78677925;hp=ab8692f8427ea14bb8ca7d713fd75f259b52841d;hpb=f12449c72130061905dfa9f1a52c8488066ee2fb;p=fs%2Flustre-release.git

diff --git a/lustre/tests/writeme.c b/lustre/tests/writeme.c
index ab8692f..bf5c971 100644
--- a/lustre/tests/writeme.c
+++ b/lustre/tests/writeme.c
@@ -4,29 +4,43 @@
 #include <stdio.h>
 #include <string.h>
 
+void usage(char *prog)
+{
+        printf("usage: %s [-s] filename\n", prog);
+}
+
 int main(int argc, char **argv)
 {
-        int fd, rc; 
+        int fd, rc;
+	int do_sync = 0;
         int i = 0;
+	int file_arg = 1;
         char buf[4096];
-        
+
         memset(buf, 0, 4096);
 
-        if (argc != 2) { 
-                printf("Usage openme <filename>\n"); 
+        if (argc < 2 || argc > 3) {
+		usage(argv[0]);
                 exit(1);
         }
 
-        fd = open(argv[1], O_RDWR | O_CREAT, 0600);
-        if (fd == -1) { 
+        if (strcmp(argv[1], "-s") == 0) {
+                do_sync = 1;
+		file_arg++;
+        }
+
+        fd = open(argv[file_arg], O_RDWR | O_CREAT, 0600);
+        if (fd == -1) {
                 printf("Error opening %s\n", argv[1]);
                 exit(1);
         }
 
-        while (1) { 
-                sprintf(buf, "write %d\n", i); 
-                rc = write(fd, buf, sizeof(buf)); 
-                sleep(1); 
+        while (1) {
+                sprintf(buf, "write %d\n", i);
+                rc = write(fd, buf, sizeof(buf));
+		if (do_sync)
+			sync();
+                sleep(1);
         }
         return 0;
 }