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[GNUnet-SVN] r37053 - libmicrohttpd/src/microhttpd
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gnunet |
Subject: |
[GNUnet-SVN] r37053 - libmicrohttpd/src/microhttpd |
Date: |
Mon, 18 Apr 2016 23:25:56 +0200 |
Author: Karlson2k
Date: 2016-04-18 23:25:56 +0200 (Mon, 18 Apr 2016)
New Revision: 37053
Modified:
libmicrohttpd/src/microhttpd/daemon.c
Log:
Added more comments about data races.
Modified: libmicrohttpd/src/microhttpd/daemon.c
===================================================================
--- libmicrohttpd/src/microhttpd/daemon.c 2016-04-18 19:43:58 UTC (rev
37052)
+++ libmicrohttpd/src/microhttpd/daemon.c 2016-04-18 21:25:56 UTC (rev
37053)
@@ -1824,6 +1824,14 @@
if (MHD_NO != daemon->resuming)
next = daemon->suspended_connections_head;
+ /* Clear the flag *only* if connections will be resumed otherwise
+ it may accidentally clear flag that was set at the same time in
+ other thread (just after 'if (MHD_NO != daemon->resuming)' in
+ this thread).
+ Clear flag *before* resuming connections otherwise new connection can
+ be set to "resuming" in other thread, but missed resuming in this
+ function at this time so clearing flag at end will clear it without
+ actually resuming of new connection. */
if (NULL != next)
daemon->resuming = MHD_NO;
while (NULL != (pos = next))
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