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[retry] Hold reference while timer is running and during expiry callback

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Guarantee that a retry timer cannot go out of scope while the timer is
running, and provide a guarantee to the expiry callback that the timer
will remain in scope during the entire callback (similar to the
guarantee provided to interface methods).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-09-02 03:34:04 +01:00
parent 25447294d5
commit 28934eef81
10 changed files with 31 additions and 14 deletions
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src/net/tcp.c
+2 -2
View File
@@ -265,8 +265,8 @@ static int tcp_open ( struct interface *xfer, struct sockaddr *peer,
DBGC ( tcp, "TCP %p allocated\n", tcp );
ref_init ( &tcp->refcnt, NULL );
intf_init ( &tcp->xfer, &tcp_xfer_desc, &tcp->refcnt );
timer_init ( &tcp->timer, tcp_expired );
timer_init ( &tcp->wait, tcp_wait_expired );
timer_init ( &tcp->timer, tcp_expired, &tcp->refcnt );
timer_init ( &tcp->wait, tcp_wait_expired, &tcp->refcnt );
tcp->prev_tcp_state = TCP_CLOSED;
tcp->tcp_state = TCP_STATE_SENT ( TCP_SYN );
tcp_dump_state ( tcp );