curl-w32/docs/libcurl/opts/CURLOPT_SERVER_RESPONSE_TIMEOUT_MS.md

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---
c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
SPDX-License-Identifier: curl
Title: CURLOPT_SERVER_RESPONSE_TIMEOUT_MS
Section: 3
Source: libcurl
See-also:
- CURLOPT_CONNECTTIMEOUT (3)
- CURLOPT_LOW_SPEED_LIMIT (3)
- CURLOPT_TIMEOUT (3)
---
# NAME
CURLOPT_SERVER_RESPONSE_TIMEOUT_MS - time allowed to wait for server response
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SERVER_RESPONSE_TIMEOUT_MS,
long timeout);
~~~
# DESCRIPTION
Pass a long. Causes libcurl to set a *timeout* period (in milliseconds) on the
amount of time that the server is allowed to take in order to send a response
message for a command before the session is considered dead. While libcurl is
waiting for a response, this value overrides CURLOPT_TIMEOUT(3). It is
recommended that if used in conjunction with CURLOPT_TIMEOUT(3), you set
CURLOPT_SERVER_RESPONSE_TIMEOUT_MS(3) to a value smaller than
CURLOPT_TIMEOUT(3).
The maximum accepted value is 2147483648.
This is the millisecond version of CURLOPT_SERVER_RESPONSE_TIMEOUT(3).
# DEFAULT
None
# PROTOCOLS
FTP, IMAP, POP3, SMTP, and SSH
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "ftp://example.com/slow.txt");
/* wait no more than 237 milliseconds */
curl_easy_setopt(curl, CURLOPT_SERVER_RESPONSE_TIMEOUT_MS, 237L);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
}
~~~
# AVAILABILITY
Added in 8.6.0.
# RETURN VALUE
Returns CURLE_OK if supported, and CURLE_UNKNOWN_OPTION if not. Returns
CURLE_BAD_FUNCTION_ARGUMENT if set to a negative value or a value that when
converted to milliseconds is too large.