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replace per-protocol keepalive functions with a common one

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this commit removes isc__nm_tcpdns_keepalive() and
isc__nm_tlsdns_keepalive(); keepalive for these protocols and
for TCP will now be set directly from isc_nmhandle_keepalive().

protocols that have an underlying TCP socket (i.e., TLS stream
and HTTP), now have protocol-specific routines, called by
isc_nmhandle_keeaplive(), to set the keepalive value on the
underlying socket.
This commit is contained in:
Evan Hunt
2021-07-14 21:12:37 -07:00
parent 7867b8b57d
commit fc6f751fbe
6 changed files with 67 additions and 49 deletions
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13
lib/isc/netmgr/tcpdns.c
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@@ -1435,16 +1435,3 @@ isc__nm_async_tcpdnscancel(isc__networker_t *worker, isc__netievent_t *ev0) {
isc__nm_failed_read_cb(sock, ISC_R_EOF, false);
}
void
isc__nm_tcpdns_keepalive(isc_nmhandle_t *handle, bool value) {
isc_nmsocket_t *sock = NULL;
REQUIRE(VALID_NMHANDLE(handle));
REQUIRE(VALID_NMSOCK(handle->sock));
REQUIRE(handle->sock->type == isc_nm_tcpdnssocket);
sock = handle->sock;
atomic_store(&sock->keepalive, value);
}