Re: Use memory to ftp upload large image and got a bad performance

[Daniel Stenberg]

On Fri, 24 Apr 2009, huafeng wu wrote:

   if (pRead->size)
   {
       *(char *)ptr = pRead->memory[0]; // copy one single byte
       pRead->memory++; // advance pointer
       pRead->size--; // less data left */
       return 1;
   }

This is the reason. It returns one byte at a time. You should rewrite it to 
fill as much as possible of the buffer in each invoke.

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 / daniel.haxx.se