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authorDave Reisner <dreisner@archlinux.org>2012-01-24 01:28:06 +0000
committerDaniel Stenberg <daniel@haxx.se>2012-02-09 18:53:51 +0100
commit705f0f7a5b6120bb783d139c9266b285a4c8acd8 (patch)
tree25e53650101274f8f178cd7f2468ee2fe4f3da28 /docs/libcurl
parentea055407fa45c4247042e7370d463364f03c3136 (diff)
add library support for tuning TCP_KEEPALIVE
This adds three new options to control the behavior of TCP keepalives: - CURLOPT_TCP_KEEPALIVE: enable/disable probes - CURLOPT_TCP_KEEPIDLE: idle time before sending first probe - CURLOPT_TCP_KEEPINTVL: delay between successive probes While not all operating systems support the TCP_KEEPIDLE and TCP_KEEPINTVL knobs, the library will still allow these options to be set by clients, silently ignoring the values.
Diffstat (limited to 'docs/libcurl')
-rw-r--r--docs/libcurl/curl_easy_setopt.318
-rw-r--r--docs/libcurl/symbols-in-versions3
2 files changed, 21 insertions, 0 deletions
diff --git a/docs/libcurl/curl_easy_setopt.3 b/docs/libcurl/curl_easy_setopt.3
index d94a84b78..a7688a7d0 100644
--- a/docs/libcurl/curl_easy_setopt.3
+++ b/docs/libcurl/curl_easy_setopt.3
@@ -915,6 +915,24 @@ overdone.
.IP CURLOPT_ADDRESS_SCOPE
Pass a long specifying the scope_id value to use when connecting to IPv6
link-local or site-local addresses. (Added in 7.19.0)
+
+.IP CURLOPT_TCP_KEEPALIVE
+Pass a long. If set to 1, TCP keepalive probes will be sent. The delay and
+frequency of these probes can be controlled by the \fICURLOPT_TCP_KEEPIDLE\fP
+and \fICURLOPT_TCP_KEEPINTVL\fP options, provided the operating system supports
+them. Set to 0 (default behavior) to disable keepalive probes (Added in
+7.24.1).
+
+.IP CURLOPT_TCP_KEEPIDLE
+Pass a long. Sets the delay, in seconds, that the operating system will wait
+while the connection is idle before sending keepalive probes. Not all operating
+systems support this option. (Added in 7.24.1)
+
+.IP CURLOPT_TCP_KEEPINTVL
+Pass a long. Sets the interval, in seconds, that the operating system will wait
+between sending keepalive probes. Not all operating systems support this
+option. (Added in 7.24.1)
+
.SH NAMES and PASSWORDS OPTIONS (Authentication)
.IP CURLOPT_NETRC
This parameter controls the preference of libcurl between using user names and
diff --git a/docs/libcurl/symbols-in-versions b/docs/libcurl/symbols-in-versions
index 73d50a2b2..a9f8a9d6e 100644
--- a/docs/libcurl/symbols-in-versions
+++ b/docs/libcurl/symbols-in-versions
@@ -486,6 +486,9 @@ CURLOPT_SSL_SESSIONID_CACHE 7.16.0
CURLOPT_SSL_VERIFYHOST 7.8.1
CURLOPT_SSL_VERIFYPEER 7.4.2
CURLOPT_STDERR 7.1
+CURLOPT_TCP_KEEPALIVE 7.24.1
+CURLOPT_TCP_KEEPIDLE 7.24.1
+CURLOPT_TCP_KEEPINTVL 7.24.1
CURLOPT_TCP_NODELAY 7.11.2
CURLOPT_TELNETOPTIONS 7.7
CURLOPT_TFTP_BLKSIZE 7.19.4