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Code Issues Releases Wiki Activity

netmgr: add shutdown function

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- new function isc_nm_shutdown() shuts down all active TCP connections,
  but does not destroy the netmgr.
This commit is contained in:
Evan Hunt
2019-11-22 15:57:42 -08:00
parent d6c5052f7e
commit 00333a5c97
6 changed files with 61 additions and 27 deletions
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12
lib/isc/netmgr/netmgr-int.h
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@@ -182,7 +182,6 @@ typedef isc__netievent__socket_t isc__netievent_tcpstoplisten_t;
typedef isc__netievent__socket_t isc__netievent_tcpclose_t;
typedef isc__netievent__socket_t isc__netievent_startread_t;
typedef isc__netievent__socket_t isc__netievent_pauseread_t;
typedef isc__netievent__socket_t isc__netievent_resumeread_t;
typedef isc__netievent__socket_t isc__netievent_closecb_t;
typedef struct isc__netievent__socket_req {
@@ -242,6 +241,12 @@ struct isc_nm {
atomic_uint_fast32_t maxudp;
atomic_bool paused;
/*
* Acive connections are being closed and new connections are
* no longer allowed.
*/
atomic_bool closing;
/*
* A worker is actively waiting for other workers, for example to
* stop listening; that means no other thread can do the same thing
@@ -582,15 +587,12 @@ isc__nm_async_startread(isc__networker_t *worker, isc__netievent_t *ievent0);
void
isc__nm_async_pauseread(isc__networker_t *worker, isc__netievent_t *ievent0);
void
isc__nm_async_resumeread(isc__networker_t *worker, isc__netievent_t *ievent0);
void
isc__nm_async_tcpclose(isc__networker_t *worker, isc__netievent_t *ievent0);
/*%<
* Callback handlers for asynchronous TCP events (connect, listen,
* stoplisten, send, read, pauseread, resumeread, close).
* stoplisten, send, read, pause, close).
*/
isc_result_t
isc__nm_tcpdns_send(isc_nmhandle_t *handle, isc_region_t *region,
isc_nm_cb_t cb, void *cbarg);