ajax_deliver in core/includes/ajax.inc

Packages and sends the result of a page callback as an Ajax response.

backdrop_deliver_html_page in core/includes/common.inc

Packages and sends the result of a page callback to the browser as HTML.

backdrop_page_create_cache in core/includes/common.inc

Create a page cache object for a page request.

backdrop_send_headers in core/includes/bootstrap.inc

Sends the HTTP response headers that were previously set, adding defaults.

backdrop_serve_page_from_cache in core/includes/bootstrap.inc

Sets HTTP headers in preparation for a cached page response.

drupal_get_http_header in core/includes/drupal.inc

Gets the HTTP response headers for the current page.

HttpResponseCodeLayoutAccess::checkAccess in core/modules/layout/plugins/access/http_response_code_layout_access.inc

Checks for access based on the available context.

layout_route_handler in core/modules/layout/layout.module

Route handler callback; Execute the current route item or wrap in a layout.

redirect_exit in core/modules/redirect/redirect.module

Implements hook_exit().

views_plugin_cache::cache_start in core/modules/views/plugins/views_plugin_cache.inc

Start caching javascript, css and other out of band info.

views_plugin_cache::gather_headers in core/modules/views/plugins/views_plugin_cache.inc

Gather out of band data, compare it to what we started with and store the difference.