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cfilters: remove close method

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closing a filter chain and reconnecting it again is a complication
that only the HTTP/1.x proxy filter used. Remove it from all filters.

Instead, a filter can return CURLE_AGAIN during the connect phase
and the cf-setup filter will tear down all "sub filters" and restart
over.

With this, a filter never resets to the initial phase but progresses
through connect -> connected -> shutdown -> destroy once.

Closes #21831
This commit is contained in:
Stefan Eissing 2026-06-01 15:31:40 +02:00 • committed by Daniel Stenberg
parent ba600296d2
commit 31cb54e1fa
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21 changed files with 50 additions and 296 deletions
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9
lib/socks.c
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@ -1289,14 +1289,6 @@ static CURLcode socks_cf_adjust_pollset(struct Curl_cfilter *cf,
return result;
}
static void socks_proxy_cf_close(struct Curl_cfilter *cf,
struct Curl_easy *data)
{
cf->connected = FALSE;
if(cf->next)
cf->next->cft->do_close(cf->next, data);
}
static void socks_proxy_cf_destroy(struct Curl_cfilter *cf,
struct Curl_easy *data)
{
@ -1339,7 +1331,6 @@ struct Curl_cftype Curl_cft_socks_proxy = {
0,
socks_proxy_cf_destroy,
socks_proxy_cf_connect,
socks_proxy_cf_close,
Curl_cf_def_shutdown,
socks_cf_adjust_pollset,
Curl_cf_def_data_pending,