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Man Pages


Manual Reference Pages  -  CURLOPT_TCP_KEEPINTVL (3)

NAME

CURLOPT_TCP_KEEPINTVL - set TCP keep-alive interval

CONTENTS

Synopsis
Description
Default
Protocols
Example
Availability
Return Value

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TCP_KEEPINTVL, long interval);

DESCRIPTION

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 7.25.0)

DEFAULT

PROTOCOLS

EXAMPLE

CURL *curl = curl_easy_init();
if(curl) {
  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

/* enable TCP keep-alive for this transfer */ curl_easy_setopt(curl, CURLOPT_TCP_KEEPALIVE, 1L);

/* keep-alive idle time to 120 seconds */ curl_easy_setopt(curl, CURLOPT_TCP_KEEPIDLE, 120L);

/* interval time between keep-alive probes: 60 seconds */ curl_easy_setopt(curl, CURLOPT_TCP_KEEPINTVL, 60L);

curl_easy_perform(curl); }

AVAILABILITY

Always

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

CURLOPT_TCP_KEEPALIVE(3), CURLOPT_TCP_KEEPIDLE(3),
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libcurl 7.37.0 CURLOPT_TCP_KEEPINTVL (3) 19 Jun 2014

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