Range filter: late_ranges functionality. Add one more filtering point after postpone filter. This allows to serve range capable replies with subrequests. It's not as efficient as range filtering for static data (i.e. doesn't save us from reading data from disk if some filter needs them in memory), but it may save some network bandwidth for us and for our users.

/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_LINUX_H_INCLUDED_
#define _NGX_LINUX_H_INCLUDED_


ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
    off_t limit);

extern int ngx_linux_rtsig_max;


#endif /* _NGX_LINUX_H_INCLUDED_ */