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* [PATCH] proxy_http_response: reduce memory pressure from larger headers
@ 2016-12-31  4:46 Eric Wong
  0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2016-12-31  4:46 UTC (permalink / raw)
  To: yahns-public

We try to cleanup after ourselves if possible so future mallocs
can find memory more easily.  We do not need to nil the object
slot, just String#clear since we're exiting the function soon,

Followup to commit bb774680aae0a827f887761b18da304aa94111cc
("use String#clear for short-lived buffers we create")
 lib/yahns/proxy_http_response.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/yahns/proxy_http_response.rb b/lib/yahns/proxy_http_response.rb
index 1776291..7df2834 100644
--- a/lib/yahns/proxy_http_response.rb
+++ b/lib/yahns/proxy_http_response.rb
@@ -132,7 +132,9 @@ def proxy_res_headers(res, req_res)
     # send the headers
     case rv = kgio_syssend(res, flags)
-    when nil then break # all done, likely
+    when nil # all done, likely
+      res.clear
+      break
     when String # partial write, highly unlikely
       flags = MSG_DONTWAIT
       res = rv # hope the skb grows

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2016-12-31  4:46 [PATCH] proxy_http_response: reduce memory pressure from larger headers Eric Wong

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