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- buster 7.64.0-4+deb10u2
- buster-backports 7.74.0-1.2~bpo10+1
- testing 7.74.0-1.2
- unstable 7.74.0-1.3
CURLMOPT_SOCKETDATA(3) | curl_multi_setopt options | CURLMOPT_SOCKETDATA(3) |
NAME¶
CURLMOPT_SOCKETDATA - custom pointer passed to the socket callbackSYNOPSIS¶
#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 CURLMOPT_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¶
NULLPROTOCOLS¶
AllEXAMPLE¶
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 7.15.4RETURN VALUE¶
Returns CURLM_OK.SEE ALSO¶
CURLMOPT_SOCKETFUNCTION(3), curl_multi_socket_action(3), CURLMOPT_TIMERFUNCTION(3)November 4, 2020 | libcurl 7.74.0 |