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Use barriers for netmgr synchronization

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The netmgr listening, stoplistening, pausing and resuming functions
now use barriers for synchronization, which makes the code much simpler.

isc/barrier.h defines isc_barrier macros as a front-end for uv_barrier
on platforms where that works, and pthread_barrier where it doesn't
(including TSAN builds).
This commit is contained in:
Ondřej Surý
2021-05-05 11:51:39 +02:00
committed by Evan Hunt
parent 2eae7813b6
commit 4c8f6ebeb1
14 changed files with 589 additions and 328 deletions
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4
lib/isc/netmgr/http.c
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@@ -1199,7 +1199,7 @@ isc_nm_httpconnect(isc_nm_t *mgr, isc_nmiface_t *local, isc_nmiface_t *peer,
sock->extrahandlesize = extrahandlesize;
sock->connect_timeout = timeout;
sock->result = ISC_R_DEFAULT;
sock->result = ISC_R_UNSET;
sock->connect_cb = cb;
sock->connect_cbarg = cbarg;
atomic_init(&sock->client, true);
@@ -2170,7 +2170,7 @@ isc_nm_listenhttp(isc_nm_t *mgr, isc_nmiface_t *iface, int backlog,
isc__nmsocket_attach(sock, &sock->outer->h2.httpserver);
sock->nchildren = sock->outer->nchildren;
sock->result = ISC_R_DEFAULT;
sock->result = ISC_R_UNSET;
sock->tid = isc_random_uniform(sock->nchildren);
sock->fd = (uv_os_sock_t)-1;