At Fri, 5 Nov 2021 08:58:06 -0700 (PDT), "thomas_d...@alumni.brown.edu" wrote: > - What are the preconditions and error-handling setup for calling > `racket_dynamic_require` and/or other `racket_*` functions?
There's not really anything you can do to catch exception C-side right now. If you need to catch exceptions, that has to be done Racket-side, possibly with a helper created via `racket_eval`. > - How does one obtain a path from a C string to pass to > `racket_dynamic_require`? (i.e. what's the equivalent idiom to > `scheme_make_path`? You can use `Sstring` to create a Scheme string from a C string or use `Smake_bytevector` plus `memcpy` to create a Racket byte string. For conversions like `bytes->path`, use `racket_primitive` to get the Scheme/Racket function and call it. > - There don't appear to be documented equivalents to SCHEME_CPTRP and > SCHEME_CPTR_TYPE. > What does `racket_cpointer_address` do if the argument is not a cpointer, > and is there some way to check the type tag without triggering garbage > collection? You can get `cpointer?` using `racket_primitive`. To disable garbage collection, I don't have a better idea than using `disable-interrupts` and `enable-interrupts` (again, obtained via `racket_primitive`), although that's limited in the sense that `disable-interrupts` could itself allow a GC through before disabling interrupts, at least in principle. > - One of the hassles with Racket BC is that the garbage collection > algorithm intetionally triggers segfaults and uses a signal handler to > resolve them, marking it hard to use GDB on the larger embedded > application. Does Racket CS have the same behavior, or is this not a > problem anymore? Racket CS does not do that --- so, that's something easier, for a change. Matthew -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/20211220123425.3fb%40sirmail.smtps.cs.utah.edu.
