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connect: fix race condition with happy eyeballs timeout

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The timer should be started after conn->connecttime is set. Otherwise
the timer could expire without this condition being true:

    /* should we try another protocol family? */
    if(i == 0 && conn->tempaddr[1] == NULL &&
      curlx_tvdiff(now, conn->connecttime) >= HAPPY_EYEBALLS_TIMEOUT) {

Ref: #1928
This commit is contained in:
Anders Bakken 2017-09-28 08:20:04 -07:00 committed by Daniel Stenberg
parent c66d94d6da
commit 49d75a4c15
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 1 additions and 1 deletions
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lib/connect.c
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@ -1161,7 +1161,6 @@ CURLcode Curl_connecthost(struct connectdata *conn, /* context */
conn->tempaddr[1] = NULL;
conn->tempsock[0] = CURL_SOCKET_BAD;
conn->tempsock[1] = CURL_SOCKET_BAD;
Curl_expire(conn->data, HAPPY_EYEBALLS_TIMEOUT, EXPIRE_HAPPY_EYEBALLS);
/* Max time for the next connection attempt */
conn->timeoutms_per_addr =
@ -1182,6 +1181,7 @@ CURLcode Curl_connecthost(struct connectdata *conn, /* context */
}
data->info.numconnects++; /* to track the number of connections made */
Curl_expire(conn->data, HAPPY_EYEBALLS_TIMEOUT, EXPIRE_HAPPY_EYEBALLS);
return CURLE_OK;
}