curlopt_buffersize(3) [mojave man page]

CURLOPT_BUFFERSIZE(3)					     curl_easy_setopt options					     CURLOPT_BUFFERSIZE(3)

NAME

       CURLOPT_BUFFERSIZE - set preferred receive buffer size

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_BUFFERSIZE, long size);

DESCRIPTION

       Pass  a	long  specifying your preferred size (in bytes) for the receive buffer in libcurl.  The main point of this would be that the write
       callback gets called more often and with smaller chunks. Secondly, for some protocols, there's a benefit of having a larger buffer for per-
       formance.

       This is just treated as a request, not an order. You cannot be guaranteed to actually get the given size.

       This buffer size is by default CURL_MAX_WRITE_SIZE (16kB). The maximum buffer size allowed to set is CURL_MAX_READ_SIZE (512kB).

DEFAULT

       CURL_MAX_WRITE_SIZE (16kB)

PROTOCOLS

       All

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.10.  Growing the buffer was added in 7.53.0.

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_MAX_RECV_SPEED_LARGE(3), CURLOPT_WRITEFUNCTION(3),

libcurl 7.54.0							 December 20, 2016					     CURLOPT_BUFFERSIZE(3)

CURLOPT_POSTFIELDSIZE_LARGE(3)				     curl_easy_setopt options				    CURLOPT_POSTFIELDSIZE_LARGE(3)

NAME

       CURLOPT_POSTFIELDSIZE_LARGE - size of POST data pointed to

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_POSTFIELDSIZE_LARGE,
				 curl_off_t size);

DESCRIPTION

       If  you	want to post data to the server without having libcurl do a strlen() to measure the data size, this option must be used. When this
       option is used you can post fully binary data, which otherwise is likely to fail. If this size is set to -1, the library will use  strlen()
       to get the size.

DEFAULT

       -1

PROTOCOLS

       HTTP(S)

EXAMPLE

       CURL *curl = curl_easy_init();
       if(curl) {
	 const char *data = large_chunk;
	 curl_off_t length_of_data; /* set somehow */

	 curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");

	 /* size of the POST data */
	 curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE, length_of_data);

	 curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);

	 curl_easy_perform(curl);
       }

AVAILABILITY

       Along with HTTP

RETURN VALUE

       Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_POSTFIELDS(3), CURLOPT_COPYPOSTFIELDS(3), CURLOPT_POSTFIELDSIZE(3),

libcurl 7.54.0							 February 03, 2016				    CURLOPT_POSTFIELDSIZE_LARGE(3)