[nginx] Gzip: clearing of c->buffered if all data are flushed.

[Maxim Dounin]

details:   http://hg.nginx.org/nginx/rev/84155a389bcc
branches:  
changeset: 5291:84155a389bcc
user:      Maxim Dounin <mdounin at mdounin.ru>
date:      Thu Jul 25 14:55:32 2013 +0400
description:
Gzip: clearing of c->buffered if all data are flushed.

This allows to finalize unfinished responses while still sending as
much data as available.

diffstat:

 src/http/modules/ngx_http_gzip_filter_module.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (30 lines):

diff --git a/src/http/modules/ngx_http_gzip_filter_module.c b/src/http/modules/ngx_http_gzip_filter_module.c
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -368,6 +368,8 @@ ngx_http_gzip_body_filter(ngx_http_reque
         if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) {
             goto failed;
         }
+
+        r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED;
     }
 
     if (ctx->nomem) {
@@ -620,8 +622,6 @@ ngx_http_gzip_filter_deflate_start(ngx_h
         return NGX_ERROR;
     }
 
-    r->connection->buffered |= NGX_HTTP_GZIP_BUFFERED;
-
     ctx->last_out = &ctx->out;
     ctx->crc32 = crc32(0L, Z_NULL, 0);
     ctx->flush = Z_NO_FLUSH;
@@ -854,6 +854,8 @@ ngx_http_gzip_filter_deflate(ngx_http_re
         *ctx->last_out = cl;
         ctx->last_out = &cl->next;
 
+        r->connection->buffered &= ~NGX_HTTP_GZIP_BUFFERED;
+
         return NGX_OK;
     }