limit_rate_after support variables

[Miroslav Novy]

Hi Ruslan,

> I've updated my version of the patch series.

Thank you :)

>  You can help with the code review and testing, if you like:

Yes, of corse.

The first patch from the series "Added post processing to
ngx_http_set_complex_value_slot()" is ok.

For second patch "Added size_t type support to
ngx_http_set_complex_value_slot()" I prepared fix, becouse
return type of ngx_parse_size is ssize_t. These is my fix

# HG changeset patch
# User Miroslav Nový <miranovy at gmail.com>
# Date 1542796801 0
#      Wed Nov 21 10:40:01 2018 +0000
# Node ID 82eed7650622fd780dcd4a86661de7b80b44199c
# Parent  1090756c530aabe5e63882dcbf278b23807568d0
Added size_t type support to ngx_http_set_complex_value_slot() fix

Return type of function ngx_parse_size is ssize_t

diff -r 1090756c530a -r 82eed7650622 src/http/ngx_http_script.c
--- a/src/http/ngx_http_script.c Tue Nov 20 16:53:38 2018 +0300
+++ b/src/http/ngx_http_script.c Wed Nov 21 10:40:01 2018 +0000
@@ -113,7 +113,7 @@

 ngx_int_t
 ngx_http_complex_value_size(ngx_http_request_t *r,
-    ngx_http_complex_value_t *val, ngx_str_t *value, size_t *size)
+    ngx_http_complex_value_t *val, ngx_str_t *value, ssize_t *size)
 {
     if (val->lengths == NULL) {
         *size = val->u.size;
diff -r 1090756c530a -r 82eed7650622 src/http/ngx_http_script.h
--- a/src/http/ngx_http_script.h Tue Nov 20 16:53:38 2018 +0300
+++ b/src/http/ngx_http_script.h Wed Nov 21 10:40:01 2018 +0000
@@ -212,7 +212,7 @@
 ngx_int_t ngx_http_complex_value(ngx_http_request_t *r,
     ngx_http_complex_value_t *val, ngx_str_t *value);
 ngx_int_t ngx_http_complex_value_size(ngx_http_request_t *r,
-    ngx_http_complex_value_t *val, ngx_str_t *value, size_t *size);
+    ngx_http_complex_value_t *val, ngx_str_t *value, ssize_t *size);
 ngx_int_t ngx_http_compile_complex_value(ngx_http_compile_complex_value_t
*ccv);
 char *ngx_http_set_complex_value_slot(ngx_conf_t *cf, ngx_command_t *cmd,
     void *conf);

The last patch "Variables support in limit_rate and limit_rate_after
(ticket #293)." throws warning "using uninitialized variable!. I am
going to make the fix today later.

Best regards
Miroslav Nový