fix race

1 files changed, 6 insertions, 5 deletions

diff --git a/it.class b/it.class
index b01285e..8d751a0 100644
--- a/it.class
+++ b/it.class
@@ -84,15 +84,16 @@ static function log($name /* ... */)
 
 	if (substr($fullfn, 0, 1) == "/")
 	{
-		$existed = file_exists($fullfn);
-		file_put_contents($fullfn, $line, FILE_APPEND);
-
-		if (!$existed)
+		if (!file_exists($fullfn))
 		{
-			@chgrp($fullfn, "www");
+			@touch("$fullfn.tmp");
+			@chgrp("$fullfn.tmp", "www");
+			@rename("$fullfn.tmp", $fullfn);
 			@unlink($basefn);
 			@symlink($fullfn, $basefn);
 		}
+
+		file_put_contents($fullfn, $line, FILE_APPEND);
 	}	
 }