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0f57a0feb8
Rather than hardcoding socket buffer size to 4MB, set it based on the ``kern.ipc.maxsockbuf'' sysctl value*. Reported by: portscout *) https://bugs.vcmi.eu/view.php?id=3027
26 lines
931 B
C++
26 lines
931 B
C++
--- lib/serializer/Connection.cpp.orig 2023-02-03 09:25:08 UTC
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+++ lib/serializer/Connection.cpp
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@@ -15,6 +15,7 @@
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#include "../CGameState.h"
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#include <boost/asio.hpp>
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+#include <sys/sysctl.h>
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VCMI_LIB_NAMESPACE_BEGIN
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@@ -46,8 +47,13 @@ void CConnection::init()
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socket->set_option(boost::asio::ip::tcp::no_delay(true));
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try
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{
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- socket->set_option(boost::asio::socket_base::send_buffer_size(4194304));
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- socket->set_option(boost::asio::socket_base::receive_buffer_size(4194304));
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+ unsigned long sb_max, sb_max_adj;
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+ size_t len = sizeof(sb_max);
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+ (void)sysctlbyname("kern.ipc.maxsockbuf", &sb_max, &len, NULL, 0);
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+ sb_max_adj = sb_max * MCLBYTES / (MSIZE + MCLBYTES);
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+
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+ socket->set_option(boost::asio::socket_base::send_buffer_size(sb_max_adj));
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+ socket->set_option(boost::asio::socket_base::receive_buffer_size(sb_max_adj));
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}
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catch (const boost::system::system_error & e)
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{
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