ngx_output_http_filter more than ones, ok?

[supergui]

my module need to write data to the client, for some reason i can not get the whole buffer at once. that is i get a trunk buffer to output now, and i must wait the next trunk buffer and output it.  so i have to call ngx_output_http_filter from time to time until the whole data is output?? but i found the first time call ngx_output_http_filter is ok, later(after a timer) i call ngx_output_http_filter will result not i want? is what i do right, or i should implement it by other way?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,4558,4558#msg-4558