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restrict SO_REUSEPORT to multithreading only so no unexpected change otherwise

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SO_REUSEPORT means you don't get any error any more if another
server instance is already running, this will be quite unexpected
for singlethreaded users.

Signed-off-by: Andy Green <andy.green@linaro.org>
This commit is contained in:
Andy Green 2016-01-29 09:20:00 +08:00
parent 6dd7e86f23
commit 4bcbfe1ad4
1 changed files with 8 additions and 7 deletions
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15
lib/server.c
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@ -1,7 +1,7 @@
/*
* libwebsockets - small server side websockets and web server implementation
*
* Copyright (C) 2010-2015 Andy Green <andy@warmcat.com>
* Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@ -75,12 +75,13 @@ int lws_context_init_server(struct lws_context_creation_info *info,
compatible_close(sockfd);
return 1;
}
#if defined(__linux__) && defined(SO_REUSEPORT)
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT,
(const void *)&opt, sizeof(opt)) < 0) {
compatible_close(sockfd);
return 1;
}
#if defined(__linux__) && defined(SO_REUSEPORT) && LWS_MAX_SMP > 1
if (context->count_threads > 1)
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEPORT,
(const void *)&opt, sizeof(opt)) < 0) {
compatible_close(sockfd);
return 1;
}
#endif
#endif
lws_plat_set_socket_options(context, sockfd);