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implement isc_nm_cancelread()

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The isc_nm_cancelread() function cancels reading on a connected
socket and calls its read callback function with a 'result'
parameter of ISC_R_CANCELED.
This commit is contained in:
Evan Hunt
2020-06-05 17:32:36 -07:00
parent 870204fe47
commit 5191ec8f86
5 changed files with 49 additions and 1 deletions
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17
lib/isc/netmgr/netmgr.c
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@@ -1348,9 +1348,24 @@ isc_nm_read(isc_nmhandle_t *handle, isc_nm_recv_cb_t cb, void *cbarg) {
}
}
void
isc_nm_cancelread(isc_nmhandle_t *handle) {
REQUIRE(VALID_NMHANDLE(handle));
switch (handle->sock->type) {
case isc_nm_tcpsocket:
isc__nm_tcp_cancelread(handle->sock);
break;
default:
INSIST(0);
ISC_UNREACHABLE();
}
}
isc_result_t
isc_nm_pauseread(isc_nmsocket_t *sock) {
REQUIRE(VALID_NMSOCK(sock));
switch (sock->type) {
case isc_nm_tcpsocket:
return (isc__nm_tcp_pauseread(sock));
@@ -1363,6 +1378,7 @@ isc_nm_pauseread(isc_nmsocket_t *sock) {
isc_result_t
isc_nm_resumeread(isc_nmsocket_t *sock) {
REQUIRE(VALID_NMSOCK(sock));
switch (sock->type) {
case isc_nm_tcpsocket:
return (isc__nm_tcp_resumeread(sock));
@@ -1375,6 +1391,7 @@ isc_nm_resumeread(isc_nmsocket_t *sock) {
void
isc_nm_stoplistening(isc_nmsocket_t *sock) {
REQUIRE(VALID_NMSOCK(sock));
switch (sock->type) {
case isc_nm_udplistener:
isc__nm_udp_stoplistening(sock);