fix 1639

ChangeLog

@@ -1,3 +1,7 @@
+Wed Jan  5 15:20:11 CET 2011
+	Fixing double-locking on non-Linux platforms when using
+	MHD_create_response_from_fd (#1639). -CG
+
 Tue Jan  4 13:07:21 CET 2011
 	Added MHD_create_response_from_buffer, deprecating
 	MHD_create_response_from_data.  Deprecating
@@ -5,11 +9,11 @@ Tue Jan  4 13:07:21 CET 2011
 
 Sun Dec 26 00:02:15 CET 2010
 	Releasing libmicrohttpd 0.9.4. -CG
-	
+
 Sat Dec 25 21:57:14 CET 2010
 	Adding support for basic authentication.
 	Documented how to obtain client SSL certificates in tutorial. -MS
-	
+
 Thu Dec 23 15:40:36 CET 2010
 	Increasing nonce length to 128 to support digest authentication
 	with Opera (see #1633).

src/daemon/connection.c

@@ -310,6 +310,7 @@ connection_close_error (struct MHD_Connection *connection)
   MHD_connection_close (connection, MHD_REQUEST_TERMINATED_WITH_ERROR);
 }
 
+
 /**
  * Prepare the response buffer of this connection for
  * sending.  Assumes that the response mutex is

src/daemon/response.c

@@ -270,13 +270,9 @@ static ssize_t
 file_reader (void *cls, uint64_t pos, char *buf, size_t max)
 {
   struct MHD_Response *response = cls;
-  int ret;
 
-  pthread_mutex_lock (&response->mutex);
   (void) lseek (response->fd, pos + response->fd_off, SEEK_SET);
-  ret = read (response->fd, buf, max);
-  pthread_mutex_unlock (&response->mutex);
-  return ret;
+  return read (response->fd, buf, max);
 }