CURLOPT_TIMEOUT(3)
CURLOPT_TIMEOUT(3) curl_easy_setopt options CURLOPT_TIMEOUT(3)
NAME
CURLOPT_TIMEOUT - set maximum time the request is allowed to
take
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT,
long timeout);
DESCRIPTION
Pass a long as parameter containing timeout - the maximum
time in seconds that you allow the libcurl transfer opera-
tion to take. Normally, name lookups can take a considerable
time and limiting operations to less than a few minutes risk
aborting perfectly normal operations. This option may cause
libcurl to use the SIGALRM signal to timeout system calls.
In unix-like systems, this might cause signals to be used
unless CURLOPT_NOSIGNAL(3) is set.
If both CURLOPT_TIMEOUT(3) and CURLOPT_TIMEOUT_MS(3) are
set, the value set last will be used.
Since this puts a hard limit for how long time a request is
allowed to take, it has limited use in dynamic use cases
with varying transfer times. You are then advised to explore
CURLOPT_LOW_SPEED_LIMIT(3), CURLOPT_LOW_SPEED_TIME(3) or
using CURLOPT_PROGRESSFUNCTION(3) to implement your own
timeout logic.
DEFAULT
Default timeout is 0 (zero) which means it never times out
during transfer.
PROTOCOLS
All
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
/* complete within 20 seconds */
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L);
curl_easy_perform(curl);
}
AVAILABILITY
Always
libcurl 7.58.0 Last change: October 03, 2017 1
CURLOPT_TIMEOUT(3) curl_easy_setopt options CURLOPT_TIMEOUT(3)
RETURN VALUE
Returns CURLE_OK. Returns CURLE_BAD_FUNCTION_ARGUMENT if set
to a negative value or a value that when converted to mil-
liseconds is too large.
SEE ALSO
CURLOPT_TIMEOUT_MS(3), CURLOPT_CONNECTTIMEOUT(3),
CURLOPT_LOW_SPEED_LIMIT(3),
libcurl 7.58.0 Last change: October 03, 2017 2
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