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MXS-1502: Add have_session_commands helper function

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The function conveys the meaning of the call better than using
session_command_count to check whether there are session commands to be
executed.
This commit is contained in:
Markus Mäkelä
2018-03-30 08:40:01 +03:00
parent 7d4f37d25b
commit 319122e621
6 changed files with 21 additions and 11 deletions
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6
server/modules/routing/readwritesplit/readwritesplit.cc
View File

@ -398,7 +398,7 @@ static bool handle_error_new_connection(RWSplit *inst,
*/
gwbuf_free(stored);
if (backend->session_command_count() == 0)
if (!backend->have_session_commands())
{
/**
* The backend was executing a command that requires a reply.
@ -1104,13 +1104,13 @@ static void clientReply(MXS_ROUTER *instance,
rses->expected_responses, backend->name());
}
if (backend->session_command_count())
if (backend->have_session_commands())
{
/** Reply to an executed session command */
process_sescmd_response(rses, backend, &writebuf);
}
if (backend->session_command_count())
if (backend->have_session_commands())
{
if (backend->execute_session_command())
{

4
server/modules/routing/readwritesplit/rwsplit_route_stmt.cc
View File

@ -219,7 +219,7 @@ bool route_single_stmt(RWSplit *inst, RWSplitSession *rses, GWBUF *querybuf, con
// The connection to target was down and we failed to reconnect
succp = false;
}
else if (target->session_command_count())
else if (target->have_session_commands())
{
// We need to wait until the session commands are executed
rses->expected_responses++;
@ -921,7 +921,7 @@ bool handle_got_target(RWSplit *inst, RWSplitSession *rses,
target->uri());
/** The session command cursor must not be active */
ss_dassert(target->session_command_count() == 0);
ss_dassert(!target->have_session_commands());
mxs::Backend::response_type response = mxs::Backend::NO_RESPONSE;
rses->wait_gtid_state = EXPECTING_NOTHING;

2
server/modules/routing/readwritesplit/rwsplit_session_cmd.cc
View File

@ -69,7 +69,7 @@ static void discard_if_response_differs(SRWBackend backend, uint8_t master_cmd,
void process_sescmd_response(RWSplitSession* rses, SRWBackend& backend, GWBUF** ppPacket)
{
if (backend->session_command_count())
if (backend->have_session_commands())
{
/** We are executing a session command */
if (GWBUF_IS_TYPE_SESCMD_RESPONSE((*ppPacket)))

4
server/modules/routing/schemarouter/schemaroutersession.cc
View File

@ -431,7 +431,7 @@ int32_t SchemaRouterSession::routeQuery(GWBUF* pPacket)
MXS_INFO("Route query to \t%s:%d <", bref->backend()->server->name, bref->backend()->server->port);
if (bref->session_command_count())
if (bref->have_session_commands())
{
/** Store current statement if execution of the previous
* session command hasn't been completed. */
@ -490,7 +490,7 @@ void SchemaRouterSession::handle_mapping_reply(SSRBackend& bref, GWBUF** pPacket
void SchemaRouterSession::process_sescmd_response(SSRBackend& bref, GWBUF** ppPacket)
{
if (bref->session_command_count())
if (bref->have_session_commands())
{
/** We are executing a session command */
if (GWBUF_IS_TYPE_SESCMD_RESPONSE((*ppPacket)))