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Don't use closed backends

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Only use backends that are still in use. The COM_STMT_EXECUTE and
COM_STMT_FETCH relationship caused unused backends to be used.
This commit is contained in:
Markus Mäkelä
2018-06-26 12:45:08 +03:00
parent d5bdc3febd
commit f97f422379
2 changed files with 13 additions and 2 deletions
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3
server/core/backend.cc
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@ -196,6 +196,7 @@ bool Backend::connect(MXS_SESSION* session)
bool Backend::write(GWBUF* buffer, response_type type)
{
ss_dassert(in_use());
bool rval = m_dcb->func.write(m_dcb, buffer) != 0;
if (rval && type == EXPECT_RESPONSE)
@ -208,6 +209,7 @@ bool Backend::write(GWBUF* buffer, response_type type)
bool Backend::auth(GWBUF* buffer)
{
ss_dassert(in_use());
bool rval = false;
if (m_dcb->func.auth(m_dcb, NULL, m_dcb->session, buffer) == 1)
@ -232,6 +234,7 @@ void Backend::store_command(GWBUF* buffer)
bool Backend::write_stored_command()
{
ss_dassert(in_use());
bool rval = false;
if (m_pending_cmd.length())