Re: unpacking an array of structs...

have you considered using json as transport? http://json.org/ has code you can re-use. On Tue, Feb 23, 2010 at 7:29 AM, php.list@juun.com <php.list@juun.com> wrote: > > I have a desktop app that has a data structure that looks like this: > > typedef struct MANGOpie > { >   unsigned char   mango; >   unsigned short  pie; > } > MANGOpie; > > > > I manage a C array of these things in memory: > > MANGOpie * pies = (MANGOpie *)malloc(count*sizeof(MANGOpie)); > > > > > I pass these to a PHP script on my webserver who needs to unpack the array > of structs. > > The unpack() PHP function appears to be what I need, but it doesn't like the > formatting I'm using to describe an array of these structs: > > "(Cmango/npie)*" > > What it doesn't like are the parentheses.  I've tried brackets and curlies > too, but nothing works.  I have to have the parentheses to tell the parser > to repeat the entire struct: > > mango > pie > mango > pie > mango > pie > ... > > > > Formatting without the parentheses -- "Cmango/npie*" -- is: > > mango > pie > pie > pie > pie > pie > ... > > > > One workaround is to drop the struct and just manage two separate parallel > arrays of each data type in the desktop app: > > unsigned char *   mangos = (unsigned char  *)malloc(count*sizeof(unsigned > char)); > unsigned short *  pies   = (unsigned short *)malloc(count*sizeof(unsigned > short)); > > With PHP unpack() format strings: > > "Cmango*" > "npie*" > > But, I'd rather keep the struct for the sake of code clarity and neatness.. > > > > Another would be to iterate thru the binary data, unpacking one struct at a > time, but that would be slower, presumably. > > > > > > > > > > Anyone know the trick to this? > > Thanks. > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >