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Move action dispatch out of main epoll loop.

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This commit is contained in:
Nicholas J. Kain 2015-02-15 06:48:49 -05:00
parent 61387408d0
commit 37aa866ae4
1 changed files with 55 additions and 48 deletions
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71
src/ndhc.c
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@ -296,46 +296,32 @@ static void do_ndhc_work(void)
else
suicide("epoll_wait failed");
}
int sev_dhcp = -1;
uint32_t dhcp_srcaddr;
uint8_t dhcp_msgtype;
int sev_arp = ARPR_NONE;
int sev_nl = IFS_NONE;
int sev_rfk = RFK_NONE;
int sev_signal = SIGNAL_NONE;
for (int i = 0; i < maxi; ++i) {
int fd = events[i].data.fd;
if (fd == cs.signalFd) {
if (!(events[i].events & EPOLLIN))
return;
int sigv = signal_dispatch();
if (sigv == SIGNAL_RENEW)
force_renew_action(&cs);
else if (sigv == SIGNAL_RELEASE)
force_release_action(&cs);
sev_signal = signal_dispatch();
} else if (fd == cs.listenFd) {
if (!(events[i].events & EPOLLIN))
return;
uint32_t srcaddr;
uint8_t msgtype;
int r = dhcp_packet_get(&cs, &dhcp_packet, &msgtype, &srcaddr);
if (!r)
packet_action(&cs, &dhcp_packet, msgtype, srcaddr);
sev_dhcp = dhcp_packet_get(&cs, &dhcp_packet, &dhcp_msgtype,
&dhcp_srcaddr);
} else if (fd == cs.arpFd) {
if (!(events[i].events & EPOLLIN))
return;
int r = arp_packet_get(&cs);
if (r == ARPR_PENDING) {
arp_packet_action(&cs);
} else if (r == ARPR_ERROR) {
if (garp.state == AS_COLLISION_CHECK)
arp_failed(&cs);
else if (garp.state == AS_GW_CHECK)
arp_gw_failed(&cs);
else
arp_reopen_fd(&cs);
handle_arp_timeout(&cs, curms());
} else if (r == ARPR_CLOSED)
handle_arp_timeout(&cs, curms());
sev_arp = arp_packet_get(&cs);
} else if (fd == cs.nlFd) {
if (!(events[i].events & EPOLLIN))
return;
int nl_event = nl_event_get(&cs);
if (nl_event != IFS_NONE)
nl_event_react(&cs, nl_event);
sev_nl = nl_event_get(&cs);
} else if (fd == ifchStream[0]) {
if (events[i].events & (EPOLLHUP|EPOLLERR|EPOLLRDHUP))
exit(EXIT_FAILURE);
@ -345,8 +331,32 @@ static void do_ndhc_work(void)
} else if (fd == cs.rfkillFd && client_config.enable_rfkill) {
if (!(events[i].events & EPOLLIN))
return;
int rfk = rfkill_get(&cs, 1, client_config.rfkillIdx);
if (rfk == RFK_ENABLED) {
sev_rfk = rfkill_get(&cs, 1, client_config.rfkillIdx);
} else
suicide("epoll_wait: unknown fd");
}
if (sev_signal == SIGNAL_RENEW)
force_renew_action(&cs);
else if (sev_signal == SIGNAL_RELEASE)
force_release_action(&cs);
if (!sev_dhcp)
packet_action(&cs, &dhcp_packet, dhcp_msgtype, dhcp_srcaddr);
if (sev_arp == ARPR_PENDING) {
arp_packet_action(&cs);
} else if (sev_arp == ARPR_ERROR) {
if (garp.state == AS_COLLISION_CHECK)
arp_failed(&cs);
else if (garp.state == AS_GW_CHECK)
arp_gw_failed(&cs);
else
arp_reopen_fd(&cs);
handle_arp_timeout(&cs, curms());
} else if (sev_arp == ARPR_CLOSED)
handle_arp_timeout(&cs, curms());
if (sev_nl != IFS_NONE)
nl_event_react(&cs, sev_nl);
if (sev_rfk == RFK_ENABLED) {
cs.rfkill_set = 1;
if (cs.ifsPrevState == IFS_UP) {
log_line("rfkill: radio now blocked; bringing interface down");
@ -354,7 +364,7 @@ static void do_ndhc_work(void)
ifnocarrier_action(&cs);
} else
log_line("rfkill: radio now blocked, but interface isn't up");
} else if (rfk == RFK_DISABLED) {
} else if (sev_rfk == RFK_DISABLED) {
cs.rfkill_set = 0;
if (cs.ifsPrevState == IFS_DOWN) {
log_line("rfkill: radio now unblocked; bringing interface up");
@ -367,9 +377,6 @@ static void do_ndhc_work(void)
log_line("rfkill: radio now unblocked, but interface is removed");
}
}
} else
suicide("epoll_wait: unknown fd");
}
for (;;) {
nowts = curms();