CURLMOPT_SOCKETDATA - custom pointer passed to the socket callback
#include <curl/curl.h> CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_SOCKETDATA, void *pointer);
CURLMOPT_SOCKETDATA(3) curl_multi_setopt options CURLMOPT_SOCKETDATA(3) NAME CURLMOPT_SOCKETDATA - custom pointer passed to the socket callback SYNOPSIS #include <curl/curl.h> CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_SOCKETDATA, void *pointer); DESCRIPTION A data pointer to pass to the socket callback set with the CURL- MOPT_SOCKETFUNCTION(3) option. This pointer will not be touched by libcurl but will only be passed in to the socket callbacks's userp argument. DEFAULT NULL PROTOCOLS All EXAMPLE static int sock_cb(CURL *e, curl_socket_t s, int what, void *cbp, void *sockp) { GlobalInfo *g = (GlobalInfo*) cbp; SockInfo *fdp = (SockInfo*) sockp; if(what == CURL_POLL_REMOVE) { remsock(fdp); } else { if(!fdp) { addsock(s, e, what, g); } else { setsock(fdp, s, e, what, g); } } return 0; } main() { GlobalInfo setup; /* ... use socket callback and custom pointer */ curl_multi_setopt(multi, CURLMOPT_SOCKETFUNCTION, sock_cb); curl_multi_setopt(multi, CURLMOPT_SOCKETDATA, &setup); } AVAILABILITY Added in 7.15.4 RETURN VALUE Returns CURLM_OK. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+------------------+ |Availability | web/curl | +---------------+------------------+ |Stability | Uncommitted | +---------------+------------------+ SEE ALSO CURLMOPT_SOCKETFUNCTION(3), curl_multi_socket_action(3), CURL- MOPT_TIMERFUNCTION(3) NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://curl.se/down- load/curl-7.83.1.tar.bz2. Further information about this software can be found on the open source community website at http://curl.haxx.se/. libcurl 7.83.1 November 04, 2020 CURLMOPT_SOCKETDATA(3)