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lib: add CURLINFO_CONN_ID and CURLINFO_XFER_ID

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- add an `id` long to Curl_easy, -1 on init
- once added to a multi (or its own multi), it gets
  a non-negative number assigned by the connection cache
- `id` is unique among all transfers using the same
  cache until reaching LONG_MAX where it will wrap
  around. So, not unique eternally.
- CURLINFO_CONN_ID returns the connection id attached to
  data or, if none present, data->state.lastconnect_id
- variables and type declared in tool for write out

Closes #11185
This commit is contained in:
Stefan Eissing 2023-05-23 12:48:58 +02:00 • committed by Daniel Stenberg
parent fdda99c6ee
commit e024d5665d
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GPG key ID: 5CC908FDB71E12C2
31 changed files with 252 additions and 94 deletions
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4
lib/curl_log.c
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@ -134,9 +134,7 @@ void Curl_log_cf_debug(struct Curl_easy *data, struct Curl_cfilter *cf,
va_list ap;
int len;
char buffer[MAXINFO + 2];
len = msnprintf(buffer, MAXINFO, "[CONN-%ld%s-%s] ",
cf->conn->connection_id, cf->sockindex? "/2" : "",
cf->cft->name);
len = msnprintf(buffer, MAXINFO, "[%s] ", cf->cft->name);
va_start(ap, fmt);
len += mvsnprintf(buffer + len, MAXINFO - len, fmt, ap);
va_end(ap);