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BUG/MEDIUM: connections: Let the xprt layer know a takeover happened.

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When we takeover a connection, let the xprt layer know. If it has its own
tasklet, and it is already scheduled, then it has to be destroyed, otherwise
it may run the new mux tasklet on the old thread.

Note that we only do this for the ssl xprt for now, because the only other
one that might wake the mux up is the handshake one, which is supposed to
disappear before idle connections exist.

No backport is needed, this is for 2.2.
This commit is contained in:
Olivier Houchard
2020-07-03 14:01:21 +02:00
committed by Willy Tarreau
parent 1662cdb0c6
commit a74bb7e26e
5 changed files with 85 additions and 3 deletions
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include/haproxy/connection-t.h
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@@ -354,6 +354,7 @@ struct xprt_ops {
int (*prepare_srv)(struct server *srv); /* prepare a server context */
void (*destroy_srv)(struct server *srv); /* destroy a server context */
int (*get_alpn)(const struct connection *conn, void *xprt_ctx, const char **str, int *len); /* get application layer name */
int (*takeover)(struct connection *conn, void *xprt_ctx, int orig_tid); /* Let the xprt know the fd have been taken over */
char name[8]; /* transport layer name, zero-terminated */
int (*subscribe)(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es); /* Subscribe <es> to events, such as "being able to send" */
int (*unsubscribe)(struct connection *conn, void *xprt_ctx, int event_type, struct wait_event *es); /* Unsubscribe <es> from events */