[EMAIL PROTECTED] wrote:
> What do you think about something like this:
> NOTE: you can open the same library more than once; they
> (dlopen/dlclose) maintain a reference count .
>
> #define MAX_CARD_TERMINAL 32
>
> struct ct_handle {
> void *libp;
> int (*CT_init) (unsigned int ctn, int pn);
> int (*CT_data) (...) /* The right prototype for CT_data */
> int (*CT_close) (unsigned int ctn);
> };
>
> struct ct_handle cts[MAX_CARD_TERMINAL];
>
> int CTB_LoadCTLibrary (unsigned int ctn, const char *cfg, const char *rdr)
> {
> ...
> cts[ctn].libp = dlopen ("The right library");
> cts[ctn].CT_init = dlsym (cts[ctn].libp, "CT_init");
> ...
> }
>
> int CT_CloseCTLibrary (unsigned int ctn)
> {
> ...
> dlclose (cts[ctn].libp);
> ...
> }
>
> int CTB_Data (unsigned int ctn, ...)
> {
> ...
> cts[ctn].CT_data (...);
> ...
> }
look quite good to me.
gregor
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