curl_multi_info_read

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curl_multi_info_read(3)		libcurl Manual	      curl_multi_info_read(3)



NAME
       curl_multi_info_read - read multi stack informationals

SYNOPSIS
       #include <curl/curl.h>

       CURLMsg *curl_multi_info_read( CURLM *multi_handle,
				      int *msgs_in_queue);

DESCRIPTION
       Ask the multi handle if there are any messages/informationals from the
       individual transfers. Messages may include informationals such  as  an
       error  code from the transfer or just the fact that a transfer is com-
       pleted. More details on these should be written down as well.

       Repeated calls to this function will return a new  struct  each	time,
       until  a	 NULL is returned as a signal that there is no more to get at
       this point. The integer pointed to with msgs_in_queue will contain the
       number of remaining messages after this function was called.

       The  data  the  returned	 pointer  points  to will not survive calling
       curl_multi_cleanup(3).

       The ’CURLMsg’ struct is very simple and only contain very basic infor-
       mation.	 If more involved information is wanted, the particular "easy
       handle" in present in that struct and can thus be used  in  subsequent
       regular curl_easy_getinfo(3) calls (or similar):

	struct CURLMsg {
	  CURLMSG msg;	     /* what this message means */
	  CURL *easy_handle; /* the handle it concerns */
	  union {
	    void *whatever;    /* message-specific data */
	    CURLcode result;   /* return code for transfer */
	  } data;
	};

RETURN VALUE
       A  pointer  to  a filled-in struct, or NULL if it failed or ran out of
       structs. It also writes the number  of  messages	 left  in  the	queue
       (after this read) in the integer the second argument points to.

SEE ALSO
       curl_multi_cleanup(3), curl_multi_init(3), curl_multi_perform(3)



libcurl 7.10.3			 27 Feb 2002	      curl_multi_info_read(3)