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MXS-2860: Extract socket error only when needed

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As the process of extracting the socket error also resets it, it should be
done only when necessary.
This commit is contained in:
Markus Mäkelä
2020-03-06 13:56:42 +02:00
parent 318a81121b
commit eb0432b7b2
2 changed files with 10 additions and 76 deletions
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30
server/modules/protocol/MySQL/mariadbbackend/mysql_backend.cc
View File

@ -1329,29 +1329,15 @@ static int gw_error_backend_event(DCB* dcb)
if (dcb->persistentstart == 0)
{
/** Not a persistent connection, something is wrong. */
MXS_ERROR("EPOLLERR event on a non-persistent DCB with no session. "
"Closing connection.");
MXS_ERROR("EPOLLERR event on a non-persistent DCB with no session. Closing connection.");
}
dcb_close(dcb);
}
else if (dcb->state != DCB_STATE_POLLING || session->state != SESSION_STATE_STARTED)
{
int error;
int len = sizeof(error);
if (getsockopt(dcb->fd, SOL_SOCKET, SO_ERROR, &error, (socklen_t*) &len) == 0 && error != 0)
if (auto err = gw_getsockerrno(dcb->fd))
{
if (dcb->state != DCB_STATE_POLLING)
{
MXS_ERROR("DCB in state %s got error '%s'.",
STRDCBSTATE(dcb->state),
mxs_strerror(errno));
}
else
{
MXS_ERROR("Error '%s' in session that is not ready for routing.",
mxs_strerror(errno));
}
MXS_ERROR("DCB in state %s got error '%s'.", STRDCBSTATE(dcb->state), mxs_strerror(err));
}
}
else
@ -1381,15 +1367,11 @@ static int gw_backend_hangup(DCB* dcb)
{
if (session->state != SESSION_STATE_STARTED)
{
int error;
int len = sizeof(error);
if (getsockopt(dcb->fd, SOL_SOCKET, SO_ERROR, &error, (socklen_t*) &len) == 0)
if (session->state != SESSION_STATE_STOPPING)
{
if (error != 0 && session->state != SESSION_STATE_STOPPING)
if (auto err = gw_getsockerrno(dcb->fd))
{
MXS_ERROR("Hangup in session that is not ready for routing, "
"Error reported is '%s'.",
mxs_strerror(errno));
MXS_ERROR("Hangup in session that is not ready for routing: %s", mxs_strerror(err));
}
}
}