Reworked multi headers to use linked lists.

Multi headers are now using linked lists instead of arrays.  Notably,
the following fields were changed: r->headers_in.cookies (renamed
to r->headers_in.cookie), r->headers_in.x_forwarded_for,
r->headers_out.cache_control, r->headers_out.link, u->headers_in.cache_control
u->headers_in.cookies (renamed to u->headers_in.set_cookie).

The r->headers_in.cookies and u->headers_in.cookies fields were renamed
to r->headers_in.cookie and u->headers_in.set_cookie to match header names.

The ngx_http_parse_multi_header_lines() and ngx_http_parse_set_cookie_lines()
functions were changed accordingly.

With this change, multi headers are now essentially equivalent to normal
headers, and following changes will further make them equivalent.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h
index 52165793a..8c9eed249 100644
--- a/src/http/ngx_http_request.h
+++ b/src/http/ngx_http_request.h
@@ -212,7 +212,7 @@ typedef struct {
     ngx_table_elt_t                  *keep_alive;
 
 #if (NGX_HTTP_X_FORWARDED_FOR)
-    ngx_array_t                       x_forwarded_for;
+    ngx_table_elt_t                  *x_forwarded_for;
 #endif
 
 #if (NGX_HTTP_REALIP)
@@ -231,11 +231,11 @@ typedef struct {
     ngx_table_elt_t                  *date;
 #endif
 
+    ngx_table_elt_t                  *cookie;
+
     ngx_str_t                         user;
     ngx_str_t                         passwd;
 
-    ngx_array_t                       cookies;
-
     ngx_str_t                         server;
     off_t                             content_length_n;
     time_t                            keep_alive_n;
@@ -274,6 +274,9 @@ typedef struct {
     ngx_table_elt_t                  *expires;
     ngx_table_elt_t                  *etag;
 
+    ngx_table_elt_t                  *cache_control;
+    ngx_table_elt_t                  *link;
+
     ngx_str_t                        *override_charset;
 
     size_t                            content_type_len;
@@ -282,9 +285,6 @@ typedef struct {
     u_char                           *content_type_lowcase;
     ngx_uint_t                        content_type_hash;
 
-    ngx_array_t                       cache_control;
-    ngx_array_t                       link;
-
     off_t                             content_length_n;
     off_t                             content_offset;
     time_t                            date_time;