Zend Lists - Adding my own type

Hi, I'm wanting to add support to PHP for a C based module I wrote (a self contained module). It supports a special file type, and most of my functions evolve around a "file pointer" of mine which is a simple structure. E.g: MY_FILE *myFilePtr; myFilePtr = my_file_open(); my_file_do_this(myFilePtr); my_file_do_that(myFilePtr); my_file_close(myFilePtr); bla bla bla... Looking through some of the extensions that come with PHP 4.0.2 (e.g. PDF, OCI8, etc.) I can see the functions I need to use (at least I think they're the right ones). They are: zend_list_insert() zend_list_find() zend_list_delete() This seems to make sense. However, I've had a bit of trouble understanding some of the other functions that are needed to add my own type to the Zend list, specifically my own "globals". Looking at the samples I can then return an INT id to the user to use with other functions that will bring back my "file pointer" for use in other functions. I also don't understand the difference between ZTS (I'm assuming Zend Thread Safe) and no ZTS being defined, and how that impacts the "globals". To be specific, my library does NOT make use of globals itself, only a MY_FILE pointer that is sent to the user to use. I would like to give the user the option to create two or more files in one PHP "instance". Can anyone out there help with this, or is there a ZEND function reference page I can look at? Thanks, Mike Berry-Porter mikebp@alverstone.com.au