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isisd: use a smaller #ifdef for isis_receive()

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There's no need to provide two definitions of the isis_receive()
function (one for GNU_LINUX and the other for !GNU_LINUX). Both differ
only slightly so it makes more sense to define isis_receive() just once
and use a smaller #ifdef to account for these differences. This improves
code readability.

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
This commit is contained in:
Renato Westphal 2016-11-28 18:35:36 -02:00
parent 18653436b7
commit 0649629483
1 changed files with 4 additions and 36 deletions
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40
isisd/isis_pdu.c
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@ -2139,7 +2139,6 @@ isis_handle_pdu (struct isis_circuit *circuit, u_char * ssnpa)
return retval;
}
#ifdef GNU_LINUX
int
isis_receive (struct thread *thread)
{
@ -2153,10 +2152,11 @@ isis_receive (struct thread *thread)
circuit = THREAD_ARG (thread);
assert (circuit);
circuit->t_read = NULL;
isis_circuit_stream(circuit, &circuit->rcv_stream);
retval = circuit->rx (circuit, ssnpa);
circuit->t_read = NULL;
if (retval == ISIS_OK)
retval = isis_handle_pdu (circuit, ssnpa);
@ -2166,52 +2166,20 @@ isis_receive (struct thread *thread)
*/
if (!circuit->is_passive)
{
#ifdef GNU_LINUX
THREAD_READ_ON (master, circuit->t_read, isis_receive, circuit,
circuit->fd);
}
return retval;
}
#else
int
isis_receive (struct thread *thread)
{
struct isis_circuit *circuit;
u_char ssnpa[ETH_ALEN];
int retval;
/*
* Get the circuit
*/
circuit = THREAD_ARG (thread);
assert (circuit);
circuit->t_read = NULL;
isis_circuit_stream(circuit, &circuit->rcv_stream);
retval = circuit->rx (circuit, ssnpa);
if (retval == ISIS_OK)
retval = isis_handle_pdu (circuit, ssnpa);
/*
* prepare for next packet.
*/
if (!circuit->is_passive)
{
circuit->t_read = thread_add_timer_msec (master, isis_receive, circuit,
listcount
(circuit->area->circuit_list) *
100);
#endif
}
return retval;
}
#endif
/* filling of the fixed isis header */
void
fill_fixed_hdr (struct isis_fixed_hdr *hdr, u_char pdu_type)