urldata: rename easy_conn to just conn

We use "conn" everywhere to be a pointer to the connection.

Introduces two functions that "attaches" and "detaches" the connection
to and from the transfer.

Going forward, we should favour using "data->conn" (since a transfer
always only has a single connection or none at all) to "conn->data"
(since a connection can have none, one or many transfers associated with
it and updating conn->data to be correct is error prone and a frequent
reason for internal issues).

Closes #3442
This commit is contained in:
Daniel Stenberg 2019-01-02 18:04:58 +01:00
parent 61faa0b420
commit ba243235ec
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15 changed files with 199 additions and 204 deletions

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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -643,7 +643,7 @@ static CURLcode CONNECT(struct connectdata *conn,
void Curl_connect_free(struct Curl_easy *data)
{
struct connectdata *conn = data->easy_conn;
struct connectdata *conn = data->conn;
struct http_connect_state *s = conn->connect_state;
if(s) {
free(s);