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4535. [bug] Address race condition in setting / testing of

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DNS_REQUEST_F_SENDING. [RT #43889]
This commit is contained in:
Mark Andrews
2016-12-14 10:31:26 +11:00
parent 45f03878c9
commit 37a8db0ba4
2 changed files with 6 additions and 2 deletions
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5
lib/dns/request.c
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@@ -445,10 +445,11 @@ req_send(dns_request_t *request, isc_task_t *task, isc_sockaddr_t *address) {
sendevent->dscp = request->dscp;
}
request->flags |= DNS_REQUEST_F_SENDING;
result = isc_socket_sendto2(sock, &r, task, address, NULL,
sendevent, 0);
if (result == ISC_R_SUCCESS)
request->flags |= DNS_REQUEST_F_SENDING;
if (result != ISC_R_SUCCESS)
request->flags &= ~DNS_REQUEST_F_SENDING;
return (result);
}