/* Interface to Perl from OCaml.
- * Copyright (C) 2003 Merjis Ltd.
- * $Id: perl_c.c,v 1.19 2004-12-11 15:40:09 rich Exp $
+ Copyright (C) 2003 Merjis Ltd.
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this library; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+ $Id: perl_c.c,v 1.25 2008-03-01 13:02:21 rich Exp $
*/
#include <stdio.h>
#define Av_val(avv) ((AV *) Xv_val (avv))
#define Val_hv(hv) (Val_xv ((SV *)(hv)))
#define Hv_val(hvv) ((HV *) Xv_val (hvv))
+#define Val_he(he) (Val_voidptr ((he)))
+#define He_val(hev) (Voidptr_val (HE, (hev)))
static void
xs_init (pTHX)
perl4caml_sv_of_float (value fv)
{
CAMLparam1 (fv);
- CAMLreturn (Val_sv (newSViv (Double_val (fv))));
+ CAMLreturn (Val_sv (newSVnv (Double_val (fv))));
}
CAMLprim value
STRLEN len;
CAMLlocal1 (strv);
str = SvPV (sv, len);
- /* XXX This won't work if the string contains NUL. */
- strv = caml_copy_string (str);
+ strv = caml_alloc_string (len);
+ memcpy (String_val (strv), str, len);
CAMLreturn (strv);
}
CAMLreturn (Val_sv (&PL_sv_no));
}
+static int
+sv_type (SV *sv)
+{
+ switch (SvTYPE (sv))
+ {
+ case SVt_IV: return 1;
+ case SVt_NV: return 2;
+ case SVt_PV: return 3;
+ case SVt_RV: return 4;
+ case SVt_PVAV: return 5;
+ case SVt_PVHV: return 6;
+ case SVt_PVCV: return 7;
+ case SVt_PVGV: return 8;
+ case SVt_PVMG: return 9;
+ default: return 0;
+ }
+}
+
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));
- }
+ CAMLreturn (Val_int (sv_type (sv)));
+}
+
+CAMLprim value
+perl4caml_address_of_sv (value svv)
+{
+ CAMLparam1 (svv);
+ SV *sv = Sv_val (svv);
+ CAMLreturn (caml_copy_nativeint ((long) sv));
+}
+
+CAMLprim value
+perl4caml_address_of_av (value avv)
+{
+ CAMLparam1 (avv);
+ AV *av = Av_val (avv);
+ CAMLreturn (caml_copy_nativeint ((long) av));
+}
+
+CAMLprim value
+perl4caml_address_of_hv (value hvv)
+{
+ CAMLparam1 (hvv);
+ HV *hv = Hv_val (hvv);
+ CAMLreturn (caml_copy_nativeint ((long) hv));
}
CAMLprim value
}
CAMLprim value
+perl4caml_reftype (value svv)
+{
+ CAMLparam1 (svv);
+ SV *sv = Sv_val (svv);
+
+ if (!SvROK (sv))
+ caml_invalid_argument ("reftype: SV is not a reference");
+
+ CAMLreturn (Val_int (sv_type (SvRV (sv))));
+}
+
+CAMLprim value
perl4caml_deref (value svv)
{
CAMLparam1 (svv);
default:
caml_invalid_argument ("deref: SV is not a reference to a scalar");
}
- rsvv = Val_sv (SvRV (sv));
+ sv = SvRV (sv);
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced SV.
+ */
+ sv = SvREFCNT_inc (sv);
+ rsvv = Val_sv (sv);
CAMLreturn (rsvv);
}
default:
caml_invalid_argument ("deref_array: SV is not a reference to an array");
}
- ravv = Val_av ((AV *) SvRV (sv));
+ sv = SvRV (sv);
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced AV.
+ */
+ sv = SvREFCNT_inc (sv);
+ ravv = Val_av ((AV *) sv);
CAMLreturn (ravv);
}
default:
caml_invalid_argument ("deref_hash: SV is not a reference to a hash");
}
- rhvv = Val_hv ((HV *) SvRV (sv));
+ sv = SvRV (sv);
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced HV.
+ */
+ sv = SvREFCNT_inc (sv);
+ rhvv = Val_hv ((HV *) sv);
CAMLreturn (rhvv);
}
CAMLparam1 (avv);
AV *av = Av_val (avv);
SV *sv = av_pop (av);
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced AV.
+ */
+ sv = SvREFCNT_inc (sv);
CAMLreturn (Val_sv (sv));
}
CAMLparam1 (avv);
AV *av = Av_val (avv);
SV *sv = av_shift (av);
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced AV.
+ */
+ sv = SvREFCNT_inc (sv);
CAMLreturn (Val_sv (sv));
}
AV *av = Av_val (avv);
SV **svp = av_fetch (av, Int_val (i), 0);
if (svp == 0) caml_invalid_argument ("av_get: index out of bounds");
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced AV.
+ */
+ *svp = SvREFCNT_inc (*svp);
CAMLreturn (Val_sv (*svp));
}
HV *hv = Hv_val (hvv);
SV **svp = hv_fetch (hv, String_val (key), caml_string_length (key), 0);
if (svp == 0) caml_raise_not_found ();
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced SV.
+ */
+ SvREFCNT_inc (*svp);
CAMLreturn (Val_sv (*svp));
}
}
CAMLprim value
+perl4caml_hv_iterinit (value hvv)
+{
+ CAMLparam1 (hvv);
+ HV *hv = Hv_val (hvv);
+ int i = hv_iterinit (hv);
+ CAMLreturn (caml_copy_int32 (i));
+}
+
+CAMLprim value
+perl4caml_hv_iternext (value hvv)
+{
+ CAMLparam1 (hvv);
+ CAMLlocal1 (hev);
+ HV *hv = Hv_val (hvv);
+ HE *he = hv_iternext (hv);
+ if (he == NULL) caml_raise_not_found ();
+ hev = Val_he (he);
+ CAMLreturn (hev);
+}
+
+CAMLprim value
+perl4caml_hv_iterkey (value hev)
+{
+ CAMLparam1 (hev);
+ CAMLlocal1 (strv);
+ HE *he = He_val (hev);
+ I32 len;
+ char *str = hv_iterkey (he, &len);
+ strv = caml_alloc_string (len);
+ memcpy (String_val (strv), str, len);
+ CAMLreturn (strv);
+}
+
+CAMLprim value
+perl4caml_hv_iterval (value hvv, value hev)
+{
+ CAMLparam2 (hvv, hev);
+ CAMLlocal1 (svv);
+ HV *hv = Hv_val (hvv);
+ HE *he = He_val (hev);
+ SV *sv = hv_iterval (hv, he);
+ SvREFCNT_inc (sv);
+ svv = Val_sv (sv);
+ CAMLreturn (svv);
+}
+
+CAMLprim value
+perl4caml_hv_iternextsv (value hvv)
+{
+ CAMLparam1 (hvv);
+ CAMLlocal3 (strv, svv, rv);
+ HV *hv = Hv_val (hvv);
+ char *str; I32 len;
+ SV *sv = hv_iternextsv (hv, &str, &len);
+ if (sv == NULL) caml_raise_not_found ();
+ SvREFCNT_inc (sv);
+ svv = Val_sv (sv);
+ strv = caml_alloc_string (len);
+ memcpy (String_val (strv), str, len);
+ /* Construct a tuple (strv, svv). */
+ rv = caml_alloc_tuple (2);
+ Field (rv, 0) = strv;
+ Field (rv, 1) = svv;
+ CAMLreturn (rv);
+}
+
+CAMLprim value
perl4caml_get_sv (value optcreate, value name)
{
CAMLparam2 (optcreate, name);
sv = get_sv (String_val (name), create == Val_true ? TRUE : FALSE);
if (sv == NULL) caml_raise_not_found ();
+ /* Increment the reference count because we're creating another
+ * value pointing at the referenced SV.
+ */
+ SvREFCNT_inc (sv);
+
CAMLreturn (Val_sv (sv));
}
av = get_av (String_val (name), create == Val_true ? TRUE : FALSE);
if (av == NULL) caml_raise_not_found ();
+ /* Increment the reference count because we're creating another
+ * value pointing at the AV.
+ */
+ SvREFCNT_inc (av);
+
CAMLreturn (Val_av (av));
}
hv = get_hv (String_val (name), create == Val_true ? TRUE : FALSE);
if (hv == NULL) caml_raise_not_found ();
+ /* Increment the reference count because we're creating another
+ * value pointing at the HV.
+ */
+ SvREFCNT_inc (hv);
+
CAMLreturn (Val_hv (hv));
}
static void
xv_finalize (value v)
{
+ /*fprintf (stderr, "about to decrement %p\n", Xv_val (v));*/
SvREFCNT_dec ((SV *) Xv_val (v));
}
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