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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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2
src/net/ipv4.c
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@@ -222,7 +222,7 @@ static struct io_buffer * ipv4_reassemble ( struct io_buffer * iobuf ) {
free_iob ( iobuf );
/* Set the reassembly timer */
timer_init ( &fragbuf->frag_timer, ipv4_frag_expired );
timer_init ( &fragbuf->frag_timer, ipv4_frag_expired, NULL );
start_timer_fixed ( &fragbuf->frag_timer, IP_FRAG_TIMEOUT );
/* Add the fragment buffer to the list of fragment buffers */