#ifndef SCM_SMOB_H
#define SCM_SMOB_H
-/* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1998,1999,2000,2001, 2004, 2006 Free Software Foundation, Inc.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
\f
#include "libguile/__scm.h"
#include "libguile/print.h"
+#include "libguile/boehm-gc.h"
+
+
\f
/* This is the internal representation of a smob type */
typedef struct scm_smob_descriptor
{
- char *name;
+ char const *name;
size_t size;
SCM (*mark) (SCM);
size_t (*free) (SCM);
int gsubr_type; /* Used in procprop.c */
} scm_smob_descriptor;
-\f
-
-#define SCM_NEWSMOB(z, tc, data) \
-do { \
- z = scm_alloc_cell ((tc), (scm_t_bits) (data)); \
-} while (0)
-#define SCM_RETURN_NEWSMOB(tc, data) \
- do { SCM __SCM_smob_answer; \
- SCM_NEWSMOB (__SCM_smob_answer, (tc), (data)); \
- return __SCM_smob_answer; \
+\f
+SCM_API SCM scm_i_new_smob_with_mark_proc (scm_t_bits tc,
+ scm_t_bits, scm_t_bits, scm_t_bits);
+
+
+
+#define SCM_NEWSMOB(z, tc, data) \
+do \
+ { \
+ register scm_t_bits _smobnum = SCM_TC2SMOBNUM (tc); \
+ z = (scm_smobs[_smobnum].mark \
+ ? scm_i_new_smob_with_mark_proc ((tc), (scm_t_bits)(data), \
+ 0, 0) \
+ : scm_cell (tc, (scm_t_bits)(data))); \
+ if (scm_smobs[_smobnum].free) \
+ { \
+ GC_finalization_proc _prev_finalizer; \
+ GC_PTR _prev_finalizer_data; \
+ \
+ GC_REGISTER_FINALIZER_NO_ORDER (SCM2PTR (z), scm_i_finalize_smob, \
+ NULL, \
+ &_prev_finalizer, \
+ &_prev_finalizer_data); \
+ } \
+ } \
+while (0)
+
+#define SCM_RETURN_NEWSMOB(tc, data) \
+ do { SCM __SCM_smob_answer; \
+ SCM_NEWSMOB (__SCM_smob_answer, (tc), (data)); \
+ return __SCM_smob_answer; \
} while (0)
-#define SCM_NEWSMOB2(z, tc, data1, data2) \
-do { \
- z = scm_alloc_double_cell ((tc), (scm_t_bits)(data1), \
- (scm_t_bits)(data2), 0); \
-} while (0)
+#define SCM_NEWSMOB2(z, tc, data1, data2) \
+ SCM_NEWSMOB3 (z, tc, data1, data2, 0)
-#define SCM_RETURN_NEWSMOB2(tc, data1, data2) \
- do { SCM __SCM_smob_answer; \
- SCM_NEWSMOB2 (__SCM_smob_answer, (tc), (data1), (data2)); \
- return __SCM_smob_answer; \
+#define SCM_RETURN_NEWSMOB2(tc, data1, data2) \
+ do { SCM __SCM_smob_answer; \
+ SCM_NEWSMOB2 (__SCM_smob_answer, (tc), (data1), (data2)); \
+ return __SCM_smob_answer; \
} while (0)
-#define SCM_NEWSMOB3(z, tc, data1, data2, data3) \
-do { \
- z = scm_alloc_double_cell ((tc), (scm_t_bits)(data1), \
- (scm_t_bits)(data2), (scm_t_bits)(data3)); \
-} while (0)
-
-#define SCM_RETURN_NEWSMOB3(tc, data1, data2, data3) \
- do { SCM __SCM_smob_answer; \
- SCM_NEWSMOB3 (__SCM_smob_answer, (tc), (data1), (data2), (data3)); \
- return __SCM_smob_answer; \
+#define SCM_NEWSMOB3(z, tc, data1, data2, data3) \
+do \
+ { \
+ register scm_t_bits _smobnum = SCM_TC2SMOBNUM (tc); \
+ z = (scm_smobs[_smobnum].mark \
+ ? scm_i_new_smob_with_mark_proc (tc, (scm_t_bits)(data1), \
+ (scm_t_bits)(data2), \
+ (scm_t_bits)(data3)) \
+ : scm_double_cell ((tc), (scm_t_bits)(data1), \
+ (scm_t_bits)(data2), \
+ (scm_t_bits)(data3))); \
+ if (scm_smobs[_smobnum].free) \
+ { \
+ GC_finalization_proc _prev_finalizer; \
+ GC_PTR _prev_finalizer_data; \
+ \
+ GC_REGISTER_FINALIZER_NO_ORDER (SCM2PTR (z), scm_i_finalize_smob, \
+ NULL, \
+ &_prev_finalizer, \
+ &_prev_finalizer_data); \
+ } \
+ } \
+while (0)
+
+#define SCM_RETURN_NEWSMOB3(tc, data1, data2, data3) \
+ do { SCM __SCM_smob_answer; \
+ SCM_NEWSMOB3 (__SCM_smob_answer, (tc), (data1), (data2), (data3)); \
+ return __SCM_smob_answer; \
} while (0)
+#define SCM_SMOB_FLAGS(x) (SCM_CELL_WORD_0 (x) >> 16)
#define SCM_SMOB_DATA(x) (SCM_CELL_WORD_1 (x))
+#define SCM_SMOB_DATA_2(x) (SCM_CELL_WORD_2 (x))
+#define SCM_SMOB_DATA_3(x) (SCM_CELL_WORD_3 (x))
#define SCM_SET_SMOB_DATA(x, data) (SCM_SET_CELL_WORD_1 ((x), (data)))
+#define SCM_SET_SMOB_DATA_2(x, data) (SCM_SET_CELL_WORD_2 ((x), (data)))
+#define SCM_SET_SMOB_DATA_3(x, data) (SCM_SET_CELL_WORD_3 ((x), (data)))
+#define SCM_SET_SMOB_FLAGS(x, data) (scm_i_set_smob_flags((x),(data)<<16))
+
+#define SCM_SMOB_OBJECT(x) (SCM_CELL_OBJECT_1 (x))
+#define SCM_SMOB_OBJECT_2(x) (SCM_CELL_OBJECT_2 (x))
+#define SCM_SMOB_OBJECT_3(x) (SCM_CELL_OBJECT_3 (x))
+#define SCM_SET_SMOB_OBJECT(x,obj) (SCM_SET_CELL_OBJECT_1 ((x), (obj)))
+#define SCM_SET_SMOB_OBJECT_2(x,obj) (SCM_SET_CELL_OBJECT_2 ((x), (obj)))
+#define SCM_SET_SMOB_OBJECT_3(x,obj) (SCM_SET_CELL_OBJECT_3 ((x), (obj)))
+#define SCM_SMOB_OBJECT_LOC(x) (SCM_CELL_OBJECT_LOC ((x), 1))
+#define SCM_SMOB_OBJECT_2_LOC(x) (SCM_CELL_OBJECT_LOC ((x), 2))
+#define SCM_SMOB_OBJECT_3_LOC(x) (SCM_CELL_OBJECT_LOC ((x), 3))
+
#define SCM_TC2SMOBNUM(x) (0x0ff & ((x) >> 8))
#define SCM_SMOBNUM(x) (SCM_TC2SMOBNUM (SCM_CELL_TYPE (x)))
/* SCM_SMOBNAME can be 0 if name is missing */
#define SCM_SMOB_DESCRIPTOR(x) (scm_smobs[SCM_SMOBNUM (x)])
#define SCM_SMOB_APPLICABLE_P(x) (SCM_SMOB_DESCRIPTOR (x).apply)
#define SCM_SMOB_APPLY_0(x) (SCM_SMOB_DESCRIPTOR (x).apply_0 (x))
-#define SCM_SMOB_APPLY_1(x,a1) (SCM_SMOB_DESCRIPTOR (x).apply_1 (x, (a1)))
-#define SCM_SMOB_APPLY_2(x,a1,a2) (SCM_SMOB_DESCRIPTOR (x).apply_2 (x, (a1), (a2)))
-#define SCM_SMOB_APPLY_3(x,a1,a2,rst) (SCM_SMOB_DESCRIPTOR (x).apply_3 (x, (a1), (a2), (rst)))
+#define SCM_SMOB_APPLY_1(x, a1) (SCM_SMOB_DESCRIPTOR (x).apply_1 (x, (a1)))
+#define SCM_SMOB_APPLY_2(x, a1, a2) (SCM_SMOB_DESCRIPTOR (x).apply_2 (x, (a1), (a2)))
+#define SCM_SMOB_APPLY_3(x, a1, a2, rst) (SCM_SMOB_DESCRIPTOR (x).apply_3 (x, (a1), (a2), (rst)))
SCM_API long scm_numsmob;
SCM_API scm_smob_descriptor scm_smobs[];
+SCM_API void scm_i_set_smob_flags (SCM x, scm_t_bits data);
+SCM_API void scm_i_finalize_smob (GC_PTR obj, GC_PTR data);
+
\f
SCM_API SCM scm_mark0 (SCM ptr);
* values using `scm_set_smob_xxx'.
*/
-SCM_API scm_t_bits scm_make_smob_type (char *name, size_t size);
+SCM_API scm_t_bits scm_make_smob_type (char const *name, size_t size);
SCM_API void scm_set_smob_mark (scm_t_bits tc, SCM (*mark) (SCM));
SCM_API void scm_set_smob_free (scm_t_bits tc, size_t (*free) (SCM));
unsigned int opt,
unsigned int rst);
+SCM_API void scm_assert_smob_type (scm_t_bits tag, SCM val);
+
/* Function for creating smobs */
SCM_API SCM scm_make_smob (scm_t_bits tc);
+
SCM_API void scm_smob_prehistory (void);
#endif /* SCM_SMOB_H */
HCoop / bpt / guile.git / blobdiff