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c31041b17e
This adds connection shutdown infrastructure and first use for FTP. FTP
data connections, when not encountering an error, are now shut down in a
blocking way with a 2sec timeout.
- add cfilter `Curl_cft_shutdown` callback
- keep a shutdown start timestamp and timeout at connectdata
- provide shutdown timeout default and member in
`data->set.shutdowntimeout`.
- provide methods for starting, interrogating and clearing
shutdown timers
- provide `Curl_conn_shutdown_blocking()` to shutdown the
`sockindex` filter chain in a blocking way. Use that in FTP.
- add `Curl_conn_cf_poll()` to wait for socket events during
shutdown of a connection filter chain.
This gets the monitoring sockets and events via the filters
"adjust_pollset()" methods. This gives correct behaviour when
shutting down a TLS connection through a HTTP/2 proxy.
- Implement shutdown for all socket filters
- for HTTP/2 and h2 proxying to send GOAWAY
- for TLS backends to the best of their capabilities
- for tcp socket filter to make a final, nonblocking
receive to avoid unwanted RST states
- add shutdown forwarding to happy eyeballers and
https connect ballers when applicable.
Closes #13904
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|---|---|---|
| .. | ||
| bearssl.c | ||
| bearssl.h | ||
| cipher_suite.c | ||
| cipher_suite.h | ||
| gtls.c | ||
| gtls.h | ||
| hostcheck.c | ||
| hostcheck.h | ||
| keylog.c | ||
| keylog.h | ||
| mbedtls.c | ||
| mbedtls.h | ||
| mbedtls_threadlock.c | ||
| mbedtls_threadlock.h | ||
| openssl.c | ||
| openssl.h | ||
| rustls.c | ||
| rustls.h | ||
| schannel.c | ||
| schannel.h | ||
| schannel_int.h | ||
| schannel_verify.c | ||
| sectransp.c | ||
| sectransp.h | ||
| vtls.c | ||
| vtls.h | ||
| vtls_int.h | ||
| wolfssl.c | ||
| wolfssl.h | ||
| x509asn1.c | ||
| x509asn1.h | ||