c_stubs: use 'new' acquire and release runtime functions #6341
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These functions have a more relevant name than the previous ones, especially with the advent of OCaml 5.0 the runtime lock becomes more important and programmers must be aware of it. These functions were introduced in OCaml 3.12. Signed-off-by: Pau Ruiz Safont <[email protected]>
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Mar 6, 2025
last-genius
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Mar 6, 2025
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Does not introduce any new problems so all good, but might just as well clean things up. I think @edwintorok has a pending PR doing this and more, but it hit some issues in testing, though.
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| const char* const hashed = | ||
| crypt_r(String_val(key), String_val(setting), &cd); |
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Not the fault of this (totally correct) commit, but these accesses to OCaml values should be brought out of this section.
| } else { | ||
| flags |= O_RDONLY; | ||
| } | ||
| fd = open(filename_c, flags, Int_val(perm)); |
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Here and above with Bool_val too
| int pirq = Int_val(irq); | ||
| caml_enter_blocking_section(); | ||
| caml_release_runtime_system(); | ||
| int retval = xc_physdev_map_pirq(xch, Int_val(domid), pirq, &pirq); |
| xc_interface *xch = xch_of_val(xch_val); | ||
| caml_enter_blocking_section(); | ||
| caml_release_runtime_system(); | ||
| int retval = xc_assign_device(xch, Int_val(domid), Int_val(machine_sbdf), Int_val(flag)); |
| xc_interface *xc = xch_of_val(xch_val); | ||
| caml_enter_blocking_section(); | ||
| caml_release_runtime_system(); | ||
| int retval = xc_deassign_device(xc, Int_val(domid), Int_val(machine_sbdf)); |
| xc_interface *xc = xch_of_val(xch_val); | ||
| caml_enter_blocking_section(); | ||
| caml_release_runtime_system(); | ||
| int retval = xc_domain_soft_reset(xc, Int_val(domid)); |
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Then I think it's worth leaving the changes to that PR |
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The Ocaml libraries in upstream Xen look like they need the same treatment. (We're going to need to take the plunge on Ocaml-5-ing them at some point) |
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These functions have a more relevant name than the previous ones, especially with the advent of OCaml 5.0 the runtime lock becomes more important and programmers must be aware of it.
These functions were introduced in OCaml 3.12.