curl_multi_socket_all - reads/writes available data for all handles

Name

curl_multi_socket_all - reads/writes available data for all easy handles

Synopsis

#include <curl/curl.h>
 
CURLMcode curl_multi_socket_all(CURLM *multi_handle,
                                int *running_handles);

Description

This function is deprecated for performance reasons but there are no plans to remove it from the API. Use curl_multi_socket_action instead.

At return, the integer running_handles points to contains the number of still running easy handles within the multi handle. When this number reaches zero, all transfers are complete/done.

Force libcurl to (re-)check all its internal sockets and transfers instead of just a single one by calling curl_multi_socket_all. Note that there should not be any reason to use this function.

Protocols

This functionality affects all supported protocols

Example

int main(void)
{
  int running;
  int rc;
  CURLM *multi;
  rc = curl_multi_socket_all(multi, &running);
}

Availability

Added in curl 7.15.4

Return value

This function returns a CURLMcode indicating success or error.

CURLM_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors.

The return code is for the whole multi stack. Problems still might have occurred on individual transfers even when one of these functions return OK.