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Introcuding a new timestamp for curl_easy_getinfo():

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CURLINFO_APPCONNECT_TIME. This is set with the "application layer"
handshake/connection is completed (typically SSL, TLS or SSH). By using this
you can figure out the application layer's own connect time. You can extract
the time stamp using curl's -w option and the new variable named
'time_appconnect'. This feature was sponsored by Lenny Rachitsky at NeuStar.
This commit is contained in:
Daniel Stenberg
2008-07-03 06:56:03 +00:00
parent ee64d14733
commit 7c648782bc
13 changed files with 74 additions and 21 deletions
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34
docs/libcurl/curl_easy_getinfo.3
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@@ -71,6 +71,12 @@ start until the name resolving was completed.
.IP CURLINFO_CONNECT_TIME
Pass a pointer to a double to receive the time, in seconds, it took from the
start until the connect to the remote host (or proxy) was completed.
.IP CURLINFO_APPCONNECT_TIME
Pass a pointer to a double to receive the time, in seconds, it took from the
start until the SSL/SSH connect/handshake to the remote host was completed.
This time is most often very near to the PRETRANSFER time, except for cases
such as HTTP pippelining where the pretransfer time can be delayed due to
waits in line for the pipeline and more. (Added in 7.19.0)
.IP CURLINFO_PRETRANSFER_TIME
Pass a pointer to a double to receive the time, in seconds, it took from the
start until the file transfer is just about to begin. This includes all
@@ -190,29 +196,33 @@ An overview of the six time values available from curl_easy_getinfo()
curl_easy_perform()
|
|--NT
|--|--CT
|--|--|--PT
|--|--|--|--ST
|--|--|--|--|--TT
|--|--|--|--|--RT
|--NAMELOOKUP
|--|--CONNECT
|--|--|--APPCONNECT
|--|--|--|--PRETRANSFER
|--|--|--|--|--STARTTRANSFER
|--|--|--|--|--|--TOTAL
|--|--|--|--|--|--REDIRECT
.FI
.IP NT
.IP NAMELOOKUP
\fICURLINFO_NAMELOOKUP_TIME\fP. The time it took from the start until the name
resolving was completed.
.IP CT
.IP CONNECT
\fICURLINFO_CONNECT_TIME\fP. The time it took from the start until the connect
to the remote host (or proxy) was completed.
.IP PT
.IP APPCONNECT
\fICURLINFO_APPCONNECT_TIME\fP. The time it took from the start until the SSL
connect/handshake with the remote host was completed. (Added in in 7.19.0)
.IP PRETRANSFER
\fICURLINFO_PRETRANSFER_TIME\fP. The time it took from the start until the
file transfer is just about to begin. This includes all pre-transfer commands
and negotiations that are specific to the particular protocol(s) involved.
.IP ST
.IP STARTTRANSFER
\fICURLINFO_STARTTRANSFER_TIME\fP. The time it took from the start until the
first byte is just about to be transferred.
.IP TT
.IP TOTAL
\fICURLINFO_TOTAL_TIME\fP. Total time of the previous request.
.IP RT
.IP REDIRECT
\fICURLINFO_REDIRECT_TIME\fP. The time it took for all redirection steps
include name lookup, connect, pretransfer and transfer before final
transaction was started. So, this is zero if no redirection took place.