Make the fault handling code more readable.
The code that decides whether a fault qualifies for ASAP treatment is a tangle of logical operators. This patch replaces the open coded logic with a helper function whose name makes the intent clear. This is a cosmetic change only. Signed-off-by: Richard Cochran <richardcochran@gmail.com>master
parent
80a28a9dc3
commit
1f66948d38
17
port.c
17
port.c
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@ -161,6 +161,19 @@ static void announce_to_dataset(struct ptp_message *m, struct port *p,
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out->receiver = p->portIdentity;
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}
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static int clear_fault_asap(struct fault_interval *faint)
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{
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switch (faint->type) {
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case FTMO_LINEAR_SECONDS:
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return faint->val == 0 ? 1 : 0;
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case FTMO_LOG2_SECONDS:
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return faint->val == FRI_ASAP ? 1 : 0;
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case FTMO_CNT:
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return 0;
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}
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return 0;
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}
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static int msg_current(struct ptp_message *m, struct timespec now)
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{
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int64_t t1, t2, tmo;
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@ -2143,9 +2156,9 @@ int port_dispatch(struct port *p, enum fsm_event event, int mdiff)
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next = p->state_machine(p->state, event, mdiff);
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fault_interval(p, last_fault_type(p), &i);
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if ((i.val == FRI_ASAP && i.type == FTMO_LOG2_SECONDS) ||
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(i.val == 0 && i.type == FTMO_LINEAR_SECONDS))
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if (clear_fault_asap(&i)) {
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fri_asap = 1;
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}
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if (PS_INITIALIZING == next || (PS_FAULTY == next && fri_asap)) {
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/*
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* This is a special case. Since we initialize the
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