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Code Issues Releases Wiki Activity

Allow listening on less than nworkers threads

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For some applications, it's useful to not listen on full battery of
threads.  Add workers argument to all isc_nm_listen*() functions and
convenience ISC_NM_LISTEN_ONE and ISC_NM_LISTEN_ALL macros.
This commit is contained in:
Ondřej Surý
2022-03-25 16:44:21 +01:00
parent dad43a128d
commit f55a4d3e55
14 changed files with 214 additions and 164 deletions
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6
lib/isc/netmgr/tcp.c
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@@ -425,7 +425,7 @@ enqueue_stoplistening(isc_nmsocket_t *sock) {
}
isc_result_t
isc_nm_listentcp(isc_nm_t *mgr, isc_sockaddr_t *iface,
isc_nm_listentcp(isc_nm_t *mgr, uint32_t workers, isc_sockaddr_t *iface,
isc_nm_accept_cb_t accept_cb, void *accept_cbarg, int backlog,
isc_quota_t *quota, isc_nmsocket_t **sockp) {
isc_result_t result = ISC_R_SUCCESS;
@@ -439,7 +439,9 @@ isc_nm_listentcp(isc_nm_t *mgr, isc_sockaddr_t *iface,
isc__nmsocket_init(sock, mgr, isc_nm_tcplistener, iface);
atomic_init(&sock->rchildren, 0);
sock->nchildren = mgr->nworkers;
sock->nchildren = (workers == ISC_NM_LISTEN_ALL)
? (uint32_t)mgr->nworkers
: workers;
children_size = sock->nchildren * sizeof(sock->children[0]);
sock->children = isc_mem_get(mgr->mctx, children_size);
memset(sock->children, 0, children_size);