Displaying 3 results from an estimated 3 matches for "caml_callback3_exn".
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caml_callback2_exn
2017 Jan 27
2
Re: [nbdkit PATCH v3 1/4] plugins: Don't use bogus errno from non-C plugins
...However you'll need to save errno around caml_enter_blocking_section
since that unblocks and processes signals.
IOW:
static int
pread_wrapper (void *h, void *buf, uint32_t count, uint64_t offset)
{
CAMLparam0 ();
CAMLlocal3 (rv, strv, offsetv);
+ int saved_errno;
...
rv = caml_callback3_exn (pread_fn, *(value *) h, strv, offsetv);
+ saved_errno = errno;
if (Is_exception_result (rv)) {
nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
caml_enter_blocking_section ();
+ errno = saved_errno;
CAMLreturnT (int, -1);
}
Rich.
--...
2017 Jan 27
0
Re: [nbdkit PATCH v3 1/4] plugins: Don't use bogus errno from non-C plugins
...cking_section
> since that unblocks and processes signals.
>
> IOW:
>
> static int
> pread_wrapper (void *h, void *buf, uint32_t count, uint64_t offset)
> {
> CAMLparam0 ();
> CAMLlocal3 (rv, strv, offsetv);
> + int saved_errno;
> ...
> rv = caml_callback3_exn (pread_fn, *(value *) h, strv, offsetv);
> + saved_errno = errno;
> if (Is_exception_result (rv)) {
> nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
> caml_enter_blocking_section ();
> + errno = saved_errno;
> CAMLreturnT...
2017 Jan 27
6
[nbdkit PATCH v3 0/4] bind .zero to Python
This cleans up the existing code base with regards to implicit
use of errno from language bindings, then rebases the previous
work in python on top of that.
I'm still playing with the perl bindings, but got further after
reading 'perldoc perlembed'.
Eric Blake (4):
plugins: Don't use bogus errno from non-C plugins
plugins: Add new nbdkit_set_error() utility function
python: