1.4 KiB
1.4 KiB
| c | SPDX-License-Identifier | Title | Section | Source | See-also | Protocol | |||
|---|---|---|---|---|---|---|---|---|---|
| Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. | curl | CURLOPT_CLOSESOCKETDATA | 3 | libcurl |
|
|
NAME
CURLOPT_CLOSESOCKETDATA - pointer passed to the socket close callback
SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CLOSESOCKETDATA,
void *pointer);
DESCRIPTION
Pass a pointer that remains untouched by libcurl and passed as the first argument in the closesocket callback set with CURLOPT_CLOSESOCKETFUNCTION(3).
DEFAULT
The default value of this parameter is NULL.
EXAMPLE
struct priv {
void *custom;
};
static int closesocket(void *clientp, curl_socket_t item)
{
struct priv *my = clientp;
printf("our ptr: %p\n", my->custom);
printf("libcurl wants to close %d now\n", (int)item);
return 0;
}
int main(void)
{
struct priv myown;
CURL *curl = curl_easy_init();
/* call this function to close sockets */
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closesocket);
curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &myown);
curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
AVAILABILITY
Added in 7.21.7
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.