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| .TH CURLOPT_TIMEOUT 3 "October 15, 2019" "libcurl 7.70.0" "curl_easy_setopt options" |
| |
| .SH NAME |
| CURLOPT_TIMEOUT \- set maximum time the request is allowed to take |
| .SH SYNOPSIS |
| #include <curl/curl.h> |
| |
| CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TIMEOUT, long timeout); |
| .SH DESCRIPTION |
| Pass a long as parameter containing \fItimeout\fP - the maximum time in |
| seconds that you allow the libcurl transfer operation to take. Normally, name |
| lookups can take a considerable time and limiting operations 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 |
| \fICURLOPT_NOSIGNAL(3)\fP is set. |
| |
| If both \fICURLOPT_TIMEOUT(3)\fP and \fICURLOPT_TIMEOUT_MS(3)\fP are set, the |
| value set last will be used. |
| |
| Since this option puts a hard limit on how long time a request is allowed to |
| take, it has limited use in dynamic use cases with varying transfer times. That |
| is especially apparent when using the multi interface, which may queue the |
| transfer, and that time is included. You are advised to explore |
| \fICURLOPT_LOW_SPEED_LIMIT(3)\fP, \fICURLOPT_LOW_SPEED_TIME(3)\fP or using |
| \fICURLOPT_PROGRESSFUNCTION(3)\fP to implement your own timeout logic. |
| .SH DEFAULT |
| Default timeout is 0 (zero) which means it never times out during transfer. |
| .SH PROTOCOLS |
| All |
| .SH EXAMPLE |
| .nf |
| 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); |
| } |
| .fi |
| .SH AVAILABILITY |
| Always |
| .SH RETURN VALUE |
| Returns CURLE_OK. Returns CURLE_BAD_FUNCTION_ARGUMENT if set to a negative |
| value or a value that when converted to milliseconds is too large. |
| .SH "SEE ALSO" |
| .BR CURLOPT_TIMEOUT_MS "(3), " |
| .BR CURLOPT_CONNECTTIMEOUT "(3), " CURLOPT_LOW_SPEED_LIMIT "(3), " |
