commit 5d4b802370e0e3f1bacb68908a6eb7e8c1bdcfd8
author Igor Sysoev <igor@sysoev.ru> Tue Oct 06 09:37:18 2009 +0000
committer Igor Sysoev <igor@sysoev.ru> Tue Oct 06 09:37:18 2009 +0000
tree 571de073cc7242f5fcc8a9f055ee1981abb69755
parent a2951910d3b63f005777fc74051eddab6437de93

make limit_req to conform to the leaky bucket algorithm

src/http/modules/ngx_http_limit_req_module.c

diff --git a/src/http/modules/ngx_http_limit_req_module.c b/src/http/modules/ngx_http_limit_req_module.c
index 84e70b4..b203d96 100644
--- a/src/http/modules/ngx_http_limit_req_module.c
+++ b/src/http/modules/ngx_http_limit_req_module.c
@@ -379,6 +379,11 @@
 
                 excess = lr->excess - ctx->rate * ngx_abs(ms) / 1000 + 1000;
 
+                if ((ngx_uint_t) excess > lrcf->burst) {
+                    *lrp = lr;
+                    return NGX_BUSY;
+                }
+
                 if (excess < 0) {
                     excess = 0;
                 }
@@ -388,10 +393,6 @@
 
                 *lrp = lr;
 
-                if ((ngx_uint_t) excess > lrcf->burst) {
-                    return NGX_BUSY;
-                }
-
                 if (excess) {
                     return NGX_AGAIN;
                 }