curl_share_init(3)

curl_share_init3

Create a share object

Usage

#include <curl/curl.h>
CURLSH *curl_share_init();

Overview

This function returns a pointer to a CURLSH handle to be used as input to all the other share-functions, sometimes referred to as a share handle in some places in the documentation. This init call MUST have a corresponding call to curl_share_cleanup(3) when all operations using the share are complete.

This share handle is what you pass to curl using the CURLOPT_SHARE(3) option with curl_easy_setopt(3), to make that specific curl handle use the data in this share.

Protocols

This functionality affects all supported protocols

Examples

int main(void)
{
  CURLSHcode sh;
  CURLSH *share = curl_share_init();
  sh = curl_share_setopt(share, CURLSHOPT_SHARE, CURL_LOCK_DATA_CONNECT);
  if(sh)
    printf("Error: %s\n", curl_share_strerror(sh));
}

Return value

If this function returns NULL, something went wrong (out of memory, etc.) and therefore the share object was not created.

Releases

11 releases since Debian 4.0 (Etch); the text changed 9 times.

  1. 4.0–5.0
  2. 6.0
  3. 7
  4. 8
  5. 9
  6. 10
  7. 11
  8. 12
  9. 13
  10. Arch

Availability

Added in curl 7.10

From curl 8.23.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.