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MXS-2486: Make SSL configurations immutable

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Changes to SSL configurations is expected to be rare which allows them to
be made into immutable objects once created. This is an acceptable
compromise between performance and usability.
This commit is contained in:
Markus Mäkelä 2019-05-24 13:11:24 +03:00
parent 52ef9afcc6
commit 859e930466
No known key found for this signature in database
GPG Key ID: 72D48FCE664F7B19
2 changed files with 13 additions and 10 deletions
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13
include/maxscale/ssl.hh
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@ -151,12 +151,17 @@ public:
SSLProvider(std::unique_ptr<mxs::SSLContext> context);
// Current configuration
const mxs::SSLConfig& config() const;
mxs::SSLContext* context() const;
void set_context(std::unique_ptr<mxs::SSLContext> ssl);
// The context or nullptr if no context is set
mxs::SSLContext* context() const;
// Set the context, argument must not be null
void set_context(std::unique_ptr<mxs::SSLContext> ssl);
private:
mxs::rworker_local<std::shared_ptr<mxs::SSLContext>> m_context; /**< SSL context */
mxs::SSLConfig m_config; /**< SSL configuration */
std::unique_ptr<mxs::SSLContext> m_context; /**< SSL context */
mxs::SSLConfig m_config; /**< SSL configuration */
};
}

10
server/core/ssl.cc
View File

@ -422,7 +422,7 @@ SSLProvider::SSLProvider(std::unique_ptr<mxs::SSLContext> context)
mxs::SSLContext* SSLProvider::context() const
{
mxb_assert_message(mxs::RoutingWorker::get_current(), "Must be used on a RoutingWorker");
return m_context->get();
return m_context.get();
}
const mxs::SSLConfig& SSLProvider::config() const
@ -432,10 +432,8 @@ const mxs::SSLConfig& SSLProvider::config() const
void SSLProvider::set_context(std::unique_ptr<mxs::SSLContext> ssl)
{
mxb_assert_message(mxs::RoutingWorker::get_current()
== mxs::RoutingWorker::get(mxs::RoutingWorker::MAIN),
"Must be only set on the main RoutingWorker");
m_config = ssl ? ssl->config() : mxs::SSLConfig {};
m_context.assign(std::move(ssl));
mxb_assert(ssl);
m_context = std::move(ssl);
m_config = m_context->config();
}
}