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Remove spinlocks from readwritesplit

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Spinlocks are no longer necessary as the threading model only allows a
specific thread to access the router session.
This commit is contained in:
Markus Mäkelä
2017-02-27 09:54:57 +02:00
parent d834c1bbdc
commit 677e8aaabf
6 changed files with 18 additions and 197 deletions
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3
server/modules/routing/readwritesplit/rwsplit_internal.h
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@ -56,7 +56,6 @@ bool handle_target_is_all(route_target_t route_target,
GWBUF *querybuf, int packet_type, qc_query_type_t qtype);
int determine_packet_type(GWBUF *querybuf, bool *non_empty_packet);
void log_transaction_status(ROUTER_CLIENT_SES *rses, GWBUF *querybuf, qc_query_type_t qtype);
void session_lock_failure_handling(GWBUF *querybuf, int packet_type, qc_query_type_t qtype);
bool is_packet_a_one_way_message(int packet_type);
sescmd_cursor_t *backend_ref_get_sescmd_cursor(backend_ref_t *bref);
bool is_packet_a_query(int packet_type);
@ -65,8 +64,6 @@ bool send_readonly_error(DCB *dcb);
/*
* The following are implemented in readwritesplit.c
*/
bool rses_begin_locked_router_action(ROUTER_CLIENT_SES *rses);
void rses_end_locked_router_action(ROUTER_CLIENT_SES *rses);
void bref_clear_state(backend_ref_t *bref, bref_state_t state);
void bref_set_state(backend_ref_t *bref, bref_state_t state);
int router_handle_state_switch(DCB *dcb, DCB_REASON reason, void *data);