/* Interface to Perl from OCaml.
* Copyright (C) 2003 Merjis Ltd.
- * $Id: perl_c.c,v 1.1 2003-10-11 18:25:52 rich Exp $
+ * $Id: perl_c.c,v 1.8 2003-10-18 12:36:09 rich Exp $
*/
#include <stdio.h>
/* Wrap up an arbitrary void pointer in an opaque OCaml object. */
static value Val_voidptr (void *ptr);
+/* Get the concrete value from an optional field. */
+static value unoption (value option, value deflt);
+
/* Unwrap an arbitrary void pointer from an opaque OCaml object. */
#define Voidptr_val(type,rv) ((type *) Field ((rv), 0))
#define Perl_val(plv) (Voidptr_val (PerlInterpreter, (plv)))
#define Val_sv(sv) (Val_voidptr ((sv)))
#define Sv_val(svv) (Voidptr_val (SV, (svv)))
+#define Val_av(av) (Val_voidptr ((av)))
+#define Av_val(avv) (Voidptr_val (AV, (avv)))
+#define Val_hv(hv) (Val_voidptr ((hv)))
+#define Hv_val(hvv) (Voidptr_val (HV, (hvv)))
CAMLprim value
perl4caml_init (value unit)
{
+ CAMLparam1 (unit);
PERL_SYS_INIT3 (NULL, NULL, NULL);
- return Val_unit;
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_current_interpreter (value unit)
+{
+ CAMLparam1 (unit);
+ if (my_perl == 0) raise_not_found ();
+ CAMLreturn (Val_perl (my_perl));
+}
+
+static void
+xs_init (pTHX)
+{
+ char *file = __FILE__;
+ EXTERN_C void boot_DynaLoader (pTHX_ CV* cv);
+
+ newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
}
CAMLprim value
CAMLlocal1 (args);
int argc, i;
char **argv;
- static char *no_args[] = { "", "-e", "0" };
+ static char *no_args[] = { "", "-w", "-e", "0" };
/* Arguments given? */
if (optargs == Val_int (0)) /* "None" */
{
- argc = 3;
+ argc = 4;
argv = no_args;
}
else /* "Some args" where args is a string array. */
my_perl = perl_alloc ();
perl_construct (my_perl);
PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
- perl_parse (my_perl, NULL, argc, argv, NULL);
- perl_run (my_perl);
+ perl_parse (my_perl, xs_init, argc, argv, NULL);
+ /*perl_run (my_perl);*/
CAMLreturn (Val_perl (my_perl));
}
perl_destruct (pl);
perl_free (pl);
+ /* Current interpreter? */
+ if (my_perl == pl) my_perl = 0;
+
CAMLreturn (Val_unit);
}
}
CAMLprim value
-perl4caml_call_scalar (value fnname, value arglist)
+perl4caml_sv_is_true (value svv)
+{
+ CAMLparam1 (svv);
+ SV *sv = Sv_val (svv);
+ CAMLreturn (SvTRUE (sv) ? Val_true : Val_false);
+}
+
+CAMLprim value
+perl4caml_sv_is_undef (value svv)
+{
+ CAMLparam1 (svv);
+ SV *sv = Sv_val (svv);
+ CAMLreturn (SvLEN (sv) == 0 ? Val_true : Val_false);
+}
+
+CAMLprim value
+perl4caml_sv_undef (value unit)
+{
+ CAMLparam1 (unit);
+ CAMLreturn (Val_sv (newSV (0)));
+}
+
+CAMLprim value
+perl4caml_sv_yes (value unit)
+{
+ CAMLparam1 (unit);
+ CAMLreturn (Val_sv (&PL_sv_yes));
+}
+
+CAMLprim value
+perl4caml_sv_no (value unit)
+{
+ CAMLparam1 (unit);
+ CAMLreturn (Val_sv (&PL_sv_no));
+}
+
+CAMLprim value
+perl4caml_sv_type (value svv)
+{
+ CAMLparam1 (svv);
+ SV *sv = Sv_val (svv);
+
+ switch (SvTYPE (sv))
+ {
+ case SVt_IV: CAMLreturn (Val_int (1));
+ case SVt_NV: CAMLreturn (Val_int (2));
+ case SVt_PV: CAMLreturn (Val_int (3));
+ case SVt_RV: CAMLreturn (Val_int (4));
+ case SVt_PVAV: CAMLreturn (Val_int (5));
+ case SVt_PVHV: CAMLreturn (Val_int (6));
+ case SVt_PVCV: CAMLreturn (Val_int (7));
+ case SVt_PVGV: CAMLreturn (Val_int (8));
+ case SVt_PVMG: CAMLreturn (Val_int (9));
+ default: CAMLreturn (Val_int (0));
+ }
+}
+
+CAMLprim value
+perl4caml_deref (value svv)
{
- CAMLparam2 (fnname, arglist);
+ CAMLparam1 (svv);
+ CAMLlocal1 (rsvv);
+ SV *sv = Sv_val (svv);
+
+ if (SvTYPE (sv) != SVt_RV)
+ invalid_argument ("deref: SV is not a reference");
+ switch (SvTYPE (SvRV (sv))) {
+ case SVt_IV:
+ case SVt_NV:
+ case SVt_PV:
+ case SVt_RV:
+ case SVt_PVMG:
+ break;
+ default:
+ invalid_argument ("deref: SV is not a reference to a scalar");
+ }
+ rsvv = Val_sv (SvRV (sv));
+ CAMLreturn (rsvv);
+}
+
+CAMLprim value
+perl4caml_deref_array (value svv)
+{
+ CAMLparam1 (svv);
+ CAMLlocal1 (ravv);
+ SV *sv = Sv_val (svv);
+
+ if (SvTYPE (sv) != SVt_RV)
+ invalid_argument ("deref_array: SV is not a reference");
+ switch (SvTYPE (SvRV (sv))) {
+ case SVt_PVAV:
+ break;
+ default:
+ invalid_argument ("deref_array: SV is not a reference to an array");
+ }
+ ravv = Val_av ((AV *) SvRV (sv));
+ CAMLreturn (ravv);
+}
+
+CAMLprim value
+perl4caml_deref_hash (value svv)
+{
+ CAMLparam1 (svv);
+ CAMLlocal1 (rhvv);
+ SV *sv = Sv_val (svv);
+
+ if (SvTYPE (sv) != SVt_RV)
+ invalid_argument ("deref_array: SV is not a reference");
+ switch (SvTYPE (SvRV (sv))) {
+ case SVt_PVHV:
+ break;
+ default:
+ invalid_argument ("deref_array: SV is not a reference to a hash");
+ }
+ rhvv = Val_hv ((HV *) SvRV (sv));
+ CAMLreturn (rhvv);
+}
+
+CAMLprim value
+perl4caml_av_empty (value unit)
+{
+ CAMLparam1 (unit);
+ AV *av = newAV ();
+ CAMLreturn (Val_av (av));
+}
+
+/* We don't know in advance how long the list will be, which makes this
+ * a little harder.
+ */
+CAMLprim value
+perl4caml_av_of_sv_list (value svlistv)
+{
+ CAMLparam1 (svlistv);
+ CAMLlocal1 (svv);
+ SV *sv, **svlist = 0;
+ int alloc = 0, size = 0;
+ AV *av;
+
+ for (; svlistv != Val_int (0); svlistv = Field (svlistv, 1))
+ {
+ svv = Field (svlistv, 0);
+ sv = Sv_val (svv);
+ if (size >= alloc) {
+ alloc = alloc == 0 ? 1 : alloc * 2;
+ svlist = realloc (svlist, alloc * sizeof (SV *));
+ }
+ svlist[size++] = sv;
+ }
+
+ av = av_make (size, svlist);
+
+ if (alloc > 0) free (svlist); /* Free memory allocated to SV list. */
+
+ CAMLreturn (Val_av (av));
+}
+
+/* XXX av_map would be faster if we also had sv_list_of_av. */
+
+CAMLprim value
+perl4caml_av_push (value avv, value svv)
+{
+ CAMLparam2 (avv, svv);
+ AV *av = Av_val (avv);
+ SV *sv = Sv_val (svv);
+ av_push (av, sv);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_av_pop (value avv)
+{
+ CAMLparam1 (avv);
+ AV *av = Av_val (avv);
+ SV *sv = av_pop (av);
+ CAMLreturn (Val_sv (sv));
+}
+
+CAMLprim value
+perl4caml_av_unshift (value avv, value svv)
+{
+ CAMLparam2 (avv, svv);
+ AV *av = Av_val (avv);
+ SV *sv = Sv_val (svv);
+ av_unshift (av, 1);
+ SvREFCNT_inc (sv);
+ if (av_store (av, 0, sv) == 0)
+ SvREFCNT_dec (sv);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_av_shift (value avv)
+{
+ CAMLparam1 (avv);
+ AV *av = Av_val (avv);
+ SV *sv = av_shift (av);
+ CAMLreturn (Val_sv (sv));
+}
+
+CAMLprim value
+perl4caml_av_length (value avv)
+{
+ CAMLparam1 (avv);
+ AV *av = Av_val (avv);
+ CAMLreturn (Val_int (av_len (av) + 1));
+}
+
+CAMLprim value
+perl4caml_av_set (value avv, value i, value svv)
+{
+ CAMLparam3 (avv, i, svv);
+ AV *av = Av_val (avv);
+ SV *sv = Sv_val (svv);
+ SvREFCNT_inc (sv);
+ if (av_store (av, Int_val (i), sv) == 0)
+ SvREFCNT_dec (sv);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_av_get (value avv, value i)
+{
+ CAMLparam2 (avv, i);
+ AV *av = Av_val (avv);
+ SV **svp = av_fetch (av, Int_val (i), 0);
+ if (svp == 0) invalid_argument ("av_get: index out of bounds");
+ CAMLreturn (Val_sv (*svp));
+}
+
+CAMLprim value
+perl4caml_av_clear (value avv)
+{
+ CAMLparam1 (avv);
+ AV *av = Av_val (avv);
+ av_clear (av);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_av_undef (value avv)
+{
+ CAMLparam1 (avv);
+ AV *av = Av_val (avv);
+ av_undef (av);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_av_extend (value avv, value i)
+{
+ CAMLparam2 (avv, i);
+ AV *av = Av_val (avv);
+ av_extend (av, Int_val (i));
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_hv_empty (value unit)
+{
+ CAMLparam1 (unit);
+ HV *hv = newHV ();
+ CAMLreturn (Val_hv (hv));
+}
+
+CAMLprim value
+perl4caml_hv_set (value hvv, value key, value svv)
+{
+ CAMLparam3 (hvv, key, svv);
+ HV *hv = Hv_val (hvv);
+ SV *sv = Sv_val (svv);
+ SvREFCNT_inc (sv);
+ if (hv_store (hv, String_val (key), string_length (key), sv, 0) == 0)
+ SvREFCNT_dec (sv);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_hv_get (value hvv, value key)
+{
+ CAMLparam2 (hvv, key);
+ HV *hv = Hv_val (hvv);
+ SV **svp = hv_fetch (hv, String_val (key), string_length (key), 0);
+ if (svp == 0) raise_not_found ();
+ CAMLreturn (Val_sv (*svp));
+}
+
+CAMLprim value
+perl4caml_hv_exists (value hvv, value key)
+{
+ CAMLparam2 (hvv, key);
+ HV *hv = Hv_val (hvv);
+ bool r = hv_exists (hv, String_val (key), string_length (key));
+ CAMLreturn (r ? Val_true : Val_false);
+}
+
+CAMLprim value
+perl4caml_hv_delete (value hvv, value key)
+{
+ CAMLparam2 (hvv, key);
+ HV *hv = Hv_val (hvv);
+ hv_delete (hv, String_val (key), string_length (key), G_DISCARD);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_hv_clear (value hvv)
+{
+ CAMLparam1 (hvv);
+ HV *hv = Hv_val (hvv);
+ hv_clear (hv);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_hv_undef (value hvv)
+{
+ CAMLparam1 (hvv);
+ HV *hv = Hv_val (hvv);
+ hv_undef (hv);
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_get_sv (value optcreate, value name)
+{
+ CAMLparam2 (optcreate, name);
+ CAMLlocal1 (create);
+ SV *sv;
+
+ create = unoption (optcreate, Val_false);
+ sv = get_sv (String_val (name), create == Val_true ? TRUE : FALSE);
+ if (sv == NULL) raise_not_found ();
+
+ CAMLreturn (Val_sv (sv));
+}
+
+CAMLprim value
+perl4caml_get_av (value optcreate, value name)
+{
+ CAMLparam2 (optcreate, name);
+ CAMLlocal1 (create);
+ AV *av;
+
+ create = unoption (optcreate, Val_false);
+ av = get_av (String_val (name), create == Val_true ? TRUE : FALSE);
+ if (av == NULL) raise_not_found ();
+
+ CAMLreturn (Val_av (av));
+}
+
+CAMLprim value
+perl4caml_get_hv (value optcreate, value name)
+{
+ CAMLparam2 (optcreate, name);
+ CAMLlocal1 (create);
+ HV *hv;
+
+ create = unoption (optcreate, Val_false);
+ hv = get_hv (String_val (name), create == Val_true ? TRUE : FALSE);
+ if (hv == NULL) raise_not_found ();
+
+ CAMLreturn (Val_hv (hv));
+}
+
+static inline void
+check_perl_failure ()
+{
+ SV *errsv = get_sv ("@", TRUE);
+
+ if (SvTRUE (errsv)) /* Equivalent of $@ in Perl. */
+ {
+ CAMLlocal1 (errv);
+ STRLEN n_a;
+ const char *err = SvPV (errsv, n_a);
+
+ errv = copy_string (err);
+
+ raise_with_arg (*caml_named_value ("perl4caml_perl_failure"), errv);
+ }
+}
+
+CAMLprim value
+perl4caml_call (value optsv, value optfnname, value arglist)
+{
+ CAMLparam3 (optsv, optfnname, arglist);
dSP;
int count;
SV *sv;
- CAMLlocal2 (errv, svv);
+ CAMLlocal3 (errv, svv, fnname);
ENTER;
SAVETMPS;
/* Push the parameter list. */
PUSHMARK (SP);
- /* XXX NOT IMPLEMENTED YET. */
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
PUTBACK;
- count = call_pv (String_val (fnname), G_EVAL|G_SCALAR);
+ if (optsv != Val_int (0))
+ {
+ svv = unoption (optsv, Val_false);
+ sv = Sv_val (svv);
+ count = call_sv (sv, G_EVAL|G_SCALAR);
+ }
+ else if (optfnname != Val_int (0))
+ {
+ fnname = unoption (optfnname, Val_false);
+ count = call_pv (String_val (fnname), G_EVAL|G_SCALAR);
+ }
+ else
+ {
+ fprintf (stderr,
+ "Perl.call: must supply either 'sv' or 'fn' parameters.");
+ abort ();
+ }
SPAGAIN;
assert (count == 1); /* Pretty sure it should never be anything else. */
- /* Pop return value off the stack and restore Perl stack. Note that the
- * return value on the stack is mortal, so we need to take a copy.
+ /* Pop return value off the stack. Note that the return value on the
+ * stack is mortal, so we need to take a copy.
*/
sv = newSVsv (POPs);
PUTBACK;
FREETMPS;
LEAVE;
- /* Died with an error? */
- if (SvTRUE (ERRSV))
+ check_perl_failure ();
+
+ svv = Val_sv (sv);
+ CAMLreturn (svv);
+}
+
+CAMLprim value
+perl4caml_call_array (value optsv, value optfnname, value arglist)
+{
+ CAMLparam3 (optsv, optfnname, arglist);
+ dSP;
+ int i, count;
+ SV *sv;
+ CAMLlocal5 (errv, svv, fnname, list, cons);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
{
- STRLEN n_a;
- const char *err = SvPV (ERRSV, n_a); /* Equivalent of $@ in Perl. */
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
- errv = copy_string (err);
+ PUTBACK;
- raise_with_arg (*caml_named_value ("perl4caml_perl_failure"), errv);
+ if (optsv != Val_int (0))
+ {
+ svv = unoption (optsv, Val_false);
+ sv = Sv_val (svv);
+ count = call_sv (sv, G_EVAL|G_ARRAY);
+ }
+ else if (optfnname != Val_int (0))
+ {
+ fnname = unoption (optfnname, Val_false);
+ count = call_pv (String_val (fnname), G_EVAL|G_ARRAY);
}
else
{
- svv = Val_sv (sv);
- CAMLreturn (svv);
+ fprintf (stderr,
+ "Perl.call_array: must supply either 'sv' or 'fn' parameters.");
+ abort ();
}
+
+ SPAGAIN;
+
+ /* Pop all the return values off the stack into a list. Values on the
+ * stack are mortal, so we must copy them.
+ */
+ list = Val_int (0);
+ for (i = 0; i < count; ++i) {
+ cons = alloc (2, 0);
+ Field (cons, 1) = list;
+ list = cons;
+ Field (cons, 0) = Val_sv (newSVsv (POPs));
+ }
+
+ /* Restore the stack. */
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ CAMLreturn (list);
+}
+
+CAMLprim value
+perl4caml_call_void (value optsv, value optfnname, value arglist)
+{
+ CAMLparam3 (optsv, optfnname, arglist);
+ dSP;
+ int count;
+ SV *sv;
+ CAMLlocal3 (errv, svv, fnname);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ if (optsv != Val_int (0))
+ {
+ svv = unoption (optsv, Val_false);
+ sv = Sv_val (svv);
+ count = call_sv (sv, G_EVAL|G_VOID);
+ }
+ else if (optfnname != Val_int (0))
+ {
+ fnname = unoption (optfnname, Val_false);
+ count = call_pv (String_val (fnname), G_EVAL|G_VOID);
+ }
+ else
+ {
+ fprintf (stderr,
+ "Perl.call_void: must supply either 'sv' or 'fn' parameters.");
+ abort ();
+ }
+
+ SPAGAIN;
+
+ assert (count == 0); /* Pretty sure it should never be anything else. */
+
+ /* Restore the stack. */
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_eval (value expr)
+{
+ CAMLparam1 (expr);
+ dSP;
+ SV *sv;
+ CAMLlocal2 (errv, svv);
+
+ sv = eval_pv (String_val (expr), G_SCALAR);
+
+ check_perl_failure ();
+
+ svv = Val_sv (sv);
+ CAMLreturn (svv);
+}
+
+CAMLprim value
+perl4caml_call_method (value ref, value name, value arglist)
+{
+ CAMLparam3 (ref, name, arglist);
+ dSP;
+ int count;
+ SV *sv;
+ CAMLlocal2 (errv, svv);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ sv = Sv_val (ref);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ count = call_method (String_val (name), G_EVAL|G_SCALAR);
+
+ SPAGAIN;
+
+ assert (count == 1); /* Pretty sure it should never be anything else. */
+
+ /* Pop return value off the stack. Note that the return value on the
+ * stack is mortal, so we need to take a copy.
+ */
+ sv = newSVsv (POPs);
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ svv = Val_sv (sv);
+ CAMLreturn (svv);
+}
+
+CAMLprim value
+perl4caml_call_method_array (value ref, value name, value arglist)
+{
+ CAMLparam3 (ref, name, arglist);
+ dSP;
+ int count, i;
+ SV *sv;
+ CAMLlocal4 (errv, svv, list, cons);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ sv = Sv_val (ref);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ count = call_method (String_val (name), G_EVAL|G_ARRAY);
+
+ SPAGAIN;
+
+ /* Pop all return values off the stack. Note that the return values on the
+ * stack are mortal, so we need to take a copy.
+ */
+ list = Val_int (0);
+ for (i = 0; i < count; ++i) {
+ cons = alloc (2, 0);
+ Field (cons, 1) = list;
+ list = cons;
+ Field (cons, 0) = Val_sv (newSVsv (POPs));
+ }
+
+ /* Restore the stack. */
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ CAMLreturn (list);
+}
+
+CAMLprim value
+perl4caml_call_method_void (value ref, value name, value arglist)
+{
+ CAMLparam3 (ref, name, arglist);
+ dSP;
+ int count;
+ SV *sv;
+ CAMLlocal2 (errv, svv);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ sv = Sv_val (ref);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ count = call_method (String_val (name), G_EVAL|G_VOID);
+
+ SPAGAIN;
+
+ assert (count == 0); /* Pretty sure it should never be anything else. */
+
+ /* Restore the stack. */
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ CAMLreturn (Val_unit);
+}
+
+CAMLprim value
+perl4caml_call_class_method (value classname, value name, value arglist)
+{
+ CAMLparam3 (classname, name, arglist);
+ dSP;
+ int count;
+ SV *sv;
+ CAMLlocal2 (errv, svv);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ XPUSHs (sv_2mortal (newSVpv (String_val (classname), 0)));
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ count = call_method (String_val (name), G_EVAL|G_SCALAR);
+
+ SPAGAIN;
+
+ assert (count == 1); /* Pretty sure it should never be anything else. */
+
+ /* Pop return value off the stack. Note that the return value on the
+ * stack is mortal, so we need to take a copy.
+ */
+ sv = newSVsv (POPs);
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ svv = Val_sv (sv);
+ CAMLreturn (svv);
+}
+
+CAMLprim value
+perl4caml_call_class_method_array (value classname, value name, value arglist)
+{
+ CAMLparam3 (classname, name, arglist);
+ dSP;
+ int count, i;
+ SV *sv;
+ CAMLlocal4 (errv, svv, list, cons);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ XPUSHs (sv_2mortal (newSVpv (String_val (classname), 0)));
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ count = call_method (String_val (name), G_EVAL|G_ARRAY);
+
+ SPAGAIN;
+
+ /* Pop all return values off the stack. Note that the return values on the
+ * stack are mortal, so we need to take a copy.
+ */
+ list = Val_int (0);
+ for (i = 0; i < count; ++i) {
+ cons = alloc (2, 0);
+ Field (cons, 1) = list;
+ list = cons;
+ Field (cons, 0) = Val_sv (newSVsv (POPs));
+ }
+
+ /* Restore the stack. */
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ CAMLreturn (list);
}
-value
+CAMLprim value
+perl4caml_call_class_method_void (value classname, value name, value arglist)
+{
+ CAMLparam3 (classname, name, arglist);
+ dSP;
+ int count;
+ SV *sv;
+ CAMLlocal2 (errv, svv);
+
+ ENTER;
+ SAVETMPS;
+
+ /* Push the parameter list. */
+ PUSHMARK (SP);
+
+ XPUSHs (sv_2mortal (newSVpv (String_val (classname), 0)));
+
+ /* Iteration over the linked list. */
+ for (; arglist != Val_int (0); arglist = Field (arglist, 1))
+ {
+ svv = Field (arglist, 0);
+ sv = Sv_val (svv);
+ XPUSHs (sv_2mortal (newSVsv (sv)));
+ }
+
+ PUTBACK;
+
+ count = call_method (String_val (name), G_EVAL|G_VOID);
+
+ SPAGAIN;
+
+ assert (count == 0); /* Pretty sure it should never be anything else. */
+
+ /* Restore the stack. */
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure ();
+
+ CAMLreturn (Val_unit);
+}
+
+static value
Val_voidptr (void *ptr)
{
value rv = alloc (1, Abstract_tag); /* XXX Is this correct? */
Field(rv, 0) = (value) ptr;
return rv;
}
+
+static value
+unoption (value option, value deflt)
+{
+ if (option == Val_int (0)) /* "None" */
+ return deflt;
+ else /* "Some 'a" */
+ return Field (option, 0);
+}
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