#ifndef __SCMH
#define __SCMH
-/* Copyright (C) 1995, 1996, 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1998,1999,2000,2001 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
*/
#undef ENGNOT
-#undef SCM_CAREFUL_INTS
\f
/* {Unsupported Options}
*
#define SCM_DEBUG_DEPRECATED SCM_DEBUG
#endif
+/* If SCM_DEBUG_INTERRUPTS is set to 1, with every deferring and allowing of
+ * interrupts a consistency check will be performed.
+ */
+#ifndef SCM_DEBUG_INTERRUPTS
+#define SCM_DEBUG_INTERRUPTS SCM_DEBUG
+#endif
+
/* If SCM_DEBUG_REST_ARGUMENT is set to 1, functions that take rest arguments
* will check whether the rest arguments are actually passed as a proper list.
* Otherwise, if SCM_DEBUG_REST_ARGUMENT is 0, functions that take rest
#define SCM_DEBUG_TYPING_STRICTNESS 0
#endif
+/* If SCM_ENABLE_VCELLS is set to 1, a couple of functions that deal
+ * with vcells are defined for compatability reasons. Supporting
+ * vcells reduces performance however.
+ *
+ * We use a dedicated macro instead of just SCM_DEBUG_DEPRECATED so
+ * that code the belongs to the `vcell' feature is easier to find.
+ */
+#define SCM_ENABLE_VCELLS !SCM_DEBUG_DEPRECATED
+
\f
#ifdef HAVE_LONG_LONGS
/* Some auto-generated .h files contain unused prototypes
* that need these typedefs.
*/
+
+#if (SCM_DEBUG_DEPRECATED == 0)
typedef long long long_long;
typedef unsigned long long ulong_long;
+#endif
#endif /* HAVE_LONG_LONGS */
\f
-/* Define
+/* {Architecture and compiler properties}
*
- * SCM_CHAR_CODE_LIMIT == UCHAR_MAX + 1
- * SCM_MOST_POSITIVE_FIXNUM (LONG_MAX>>2)
- * SCM_MOST_NEGATIVE_FIXNUM == SCM_SRS((long)LONG_MIN, 2)
+ * Guile as of today can only work on systems which fulfill at least the
+ * following requirements:
+ * - long ints have at least 32 bits.
+ * Guile's type system is based on this assumption.
+ * - long ints consist of at least four characters.
+ * It is assumed that cells, i. e. pairs of long ints, are eight character
+ * aligned, because three bits of a cell pointer are used for type data.
+ * - sizeof (void*) == sizeof (long int)
+ * Pointers are stored in SCM objects, and sometimes SCM objects are passed
+ * as void*. Thus, there has to be a one-to-one correspondence.
+ * - numbers are encoded using two's complement.
+ * The implementation of the bitwise scheme level operations is based on
+ * this assumption.
+ * - ... add more
*/
#ifdef HAVE_LIMITS_H
# include <limits.h>
-# ifdef UCHAR_MAX
-# define SCM_CHAR_CODE_LIMIT (UCHAR_MAX+1L)
-# else
-# define SCM_CHAR_CODE_LIMIT 256L
-# endif /* def UCHAR_MAX */
-# define SCM_MOST_POSITIVE_FIXNUM (LONG_MAX>>2)
-# ifdef _UNICOS /* Stupid cray bug */
-# define SCM_MOST_NEGATIVE_FIXNUM ((long)LONG_MIN/4)
-# else
-# define SCM_MOST_NEGATIVE_FIXNUM SCM_SRS((long)LONG_MIN, 2)
-# endif /* UNICOS */
+#endif
+
+#ifdef CHAR_BIT
+# define SCM_CHAR_BIT CHAR_BIT
+#else
+# define SCM_CHAR_BIT 8
+#endif
+
+#ifdef LONG_BIT
+# define SCM_LONG_BIT LONG_BIT
+#else
+# define SCM_LONG_BIT (SCM_CHAR_BIT * sizeof (long) / sizeof (char))
+#endif
+
+#define SCM_BITS_LENGTH (SCM_CHAR_BIT * SCM_SIZEOF_BITS_T)
+
+#ifdef UCHAR_MAX
+# define SCM_CHAR_CODE_LIMIT (UCHAR_MAX + 1L)
#else
# define SCM_CHAR_CODE_LIMIT 256L
-# define SCM_MOST_POSITIVE_FIXNUM ((long)((unsigned long)~0L>>3))
-# if (0 != ~0)
-# define SCM_MOST_NEGATIVE_FIXNUM (-SCM_MOST_POSITIVE_FIXNUM-1)
-# else
-# define SCM_MOST_NEGATIVE_FIXNUM (-SCM_MOST_POSITIVE_FIXNUM)
-# endif /* (0 != ~0) */
-#endif /* def HAVE_LIMITS_H */
+#endif
+
\f
#ifdef STDC_HEADERS
# include <stdlib.h>
-# ifdef AMIGA
+# if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+# endif
+# if HAVE_SYS_STDTYPES_H
+# include <sys/stdtypes.h>
+# endif
# include <stddef.h>
-# endif /* def AMIGA */
-# define scm_sizet size_t
-#else
-# ifdef _SIZE_T
-# define scm_sizet size_t
-# else
-# define scm_sizet unsigned int
-# endif /* def _SIZE_T */
#endif /* def STDC_HEADERS */
+#if (SCM_DEBUG_DEPRECATED == 0)
+# define scm_sizet size_t
+#endif
+
\f
#include "libguile/tags.h"
\f
#ifndef USE_THREADS
-#define SCM_THREAD_DEFER
-#define SCM_THREAD_ALLOW
-#define SCM_THREAD_REDEFER
+#define SCM_CRITICAL_SECTION_START
+#define SCM_CRITICAL_SECTION_END
#define SCM_THREAD_SWITCHING_CODE
#endif
} while (0)
#endif
-#ifdef SCM_CAREFUL_INTS
+#if (SCM_DEBUG_INTERRUPTS == 1)
+#include <stdio.h>
#define SCM_CHECK_NOT_DISABLED \
- if (scm_ints_disabled) \
- fputs("ints already disabled\n", stderr); \
+ do { \
+ if (scm_ints_disabled) \
+ fprintf(stderr, "ints already disabled (at %s:%d)\n", \
+ __FILE__, __LINE__); \
+ } while (0)
#define SCM_CHECK_NOT_ENABLED \
- if (!scm_ints_disabled) \
- fputs("ints already enabled\n", stderr); \
+ do { \
+ if (!scm_ints_disabled) \
+ fprintf(stderr, "ints already enabled (at %s:%d)\n", \
+ __FILE__, __LINE__); \
+ } while (0)
#else
#define SCM_CHECK_NOT_DISABLED
do { \
SCM_FENCE; \
SCM_CHECK_NOT_DISABLED; \
- SCM_THREAD_DEFER; \
+ SCM_CRITICAL_SECTION_START; \
SCM_FENCE; \
scm_ints_disabled = 1; \
SCM_FENCE; \
#define SCM_ALLOW_INTS_ONLY \
do { \
- SCM_THREAD_ALLOW; \
+ SCM_CRITICAL_SECTION_END; \
scm_ints_disabled = 0; \
} while (0)
do { \
SCM_FENCE; \
SCM_CHECK_NOT_ENABLED; \
- SCM_THREAD_SWITCHING_CODE; \
+ SCM_CRITICAL_SECTION_END; \
SCM_FENCE; \
scm_ints_disabled = 0; \
SCM_FENCE; \
- SCM_THREAD_ALLOW; \
+ SCM_THREAD_SWITCHING_CODE; \
SCM_FENCE; \
} while (0)
#define SCM_REDEFER_INTS \
do { \
SCM_FENCE; \
- SCM_THREAD_REDEFER; \
+ SCM_CRITICAL_SECTION_START; \
++scm_ints_disabled; \
SCM_FENCE; \
} while (0)
#define SCM_REALLOW_INTS \
do { \
SCM_FENCE; \
- SCM_THREAD_SWITCHING_CODE; \
+ SCM_CRITICAL_SECTION_END; \
SCM_FENCE; \
--scm_ints_disabled; \
SCM_FENCE; \
#define SCM_TICK \
do { \
- SCM_DEFER_INTS; \
- SCM_ALLOW_INTS; \
SCM_ASYNC_TICK; \
+ SCM_THREAD_SWITCHING_CODE; \
} while (0)
\f
* at all times.
*/
-#ifdef SCM_POSIX_THREADS
-#define SCM_ENTER_A_SECTION
-#define SCM_EXIT_A_SECTION
-#else
-#define SCM_ENTER_A_SECTION SCM_DEFER_INTS
-#define SCM_EXIT_A_SECTION SCM_ALLOW_INTS
-#endif
+#define SCM_ENTER_A_SECTION SCM_CRITICAL_SECTION_START
+#define SCM_EXIT_A_SECTION SCM_CRITICAL_SECTION_END
\f
#ifdef SCM_RECKLESS
#define SCM_ASSERT(_cond, _arg, _pos, _subr)
-#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr)
+#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr, _msg)
#define SCM_ASRTGO(_cond, _label)
#else
#define SCM_ASSERT(_cond, _arg, _pos, _subr) \
if (!(_cond)) \
- scm_wta(_arg, (char *)(_pos), _subr)
+ scm_wrong_type_arg (_subr, _pos, _arg)
#define SCM_ASSERT_TYPE(_cond, _arg, _pos, _subr, _msg) \
if (!(_cond)) \
scm_wrong_type_arg_msg(_subr, _pos, _arg, _msg)
extern SCM scm_call_generic_0 (SCM gf);
-#define SCM_WTA_DISPATCH_0(gf, arg, pos, subr) \
- return (SCM_UNPACK (gf) \
- ? scm_call_generic_0 ((gf)) \
- : scm_wta ((arg), (char *) (pos), (subr)))
-#define SCM_GASSERT0(cond, gf, arg, pos, subr) \
- if (!(cond)) SCM_WTA_DISPATCH_0((gf), (arg), (pos), (subr))
+#define SCM_WTA_DISPATCH_0(gf, subr) \
+ return (SCM_UNPACK (gf) \
+ ? scm_call_generic_0 ((gf)) \
+ : (scm_error_num_args_subr ((subr)), SCM_UNSPECIFIED))
+#define SCM_GASSERT0(cond, gf, subr) \
+ if (!(cond)) SCM_WTA_DISPATCH_0((gf), (subr))
extern SCM scm_call_generic_1 (SCM gf, SCM a1);
-#define SCM_WTA_DISPATCH_1(gf, a1, pos, subr) \
- return (SCM_UNPACK (gf) \
- ? scm_call_generic_1 ((gf), (a1)) \
- : scm_wta ((a1), (char *) (pos), (subr)))
+#define SCM_WTA_DISPATCH_1(gf, a1, pos, subr) \
+ return (SCM_UNPACK (gf) \
+ ? scm_call_generic_1 ((gf), (a1)) \
+ : (scm_wrong_type_arg ((subr), (pos), (a1)), SCM_UNSPECIFIED))
#define SCM_GASSERT1(cond, gf, a1, pos, subr) \
if (!(cond)) SCM_WTA_DISPATCH_1((gf), (a1), (pos), (subr))
extern SCM scm_call_generic_2 (SCM gf, SCM a1, SCM a2);
-#define SCM_WTA_DISPATCH_2(gf, a1, a2, pos, subr) \
- return (SCM_UNPACK (gf) \
- ? scm_call_generic_2 ((gf), (a1), (a2)) \
- : scm_wta ((pos) == SCM_ARG1 ? (a1) : (a2), (char *) (pos), (subr)))
+#define SCM_WTA_DISPATCH_2(gf, a1, a2, pos, subr) \
+ return (SCM_UNPACK (gf) \
+ ? scm_call_generic_2 ((gf), (a1), (a2)) \
+ : (scm_wrong_type_arg ((subr), (pos), \
+ (pos) == SCM_ARG1 ? (a1) : (a2)), \
+ SCM_UNSPECIFIED))
#define SCM_GASSERT2(cond, gf, a1, a2, pos, subr) \
if (!(cond)) SCM_WTA_DISPATCH_2((gf), (a1), (a2), (pos), (subr))
extern SCM scm_apply_generic (SCM gf, SCM args);
-#define SCM_WTA_DISPATCH_n(gf, args, pos, subr) \
- return (SCM_UNPACK (gf) \
- ? scm_apply_generic ((gf), (args)) \
- : scm_wta (scm_list_ref ((args), SCM_MAKINUM ((pos) - 1)), \
- (char *) (pos), \
- (subr)))
+#define SCM_WTA_DISPATCH_n(gf, args, pos, subr) \
+ return (SCM_UNPACK (gf) \
+ ? scm_apply_generic ((gf), (args)) \
+ : (scm_wrong_type_arg ((subr), (pos), \
+ scm_list_ref ((args), \
+ SCM_MAKINUM ((pos) - 1))), \
+ SCM_UNSPECIFIED))
#define SCM_GASSERTn(cond, gf, args, pos, subr) \
if (!(cond)) SCM_WTA_DISPATCH_n((gf), (args), (pos), (subr))
#define SCM_ARG6 6
#define SCM_ARG7 7
-/* SCM_WNA must follow the last SCM_ARGn in sequence.
- */
+#if (SCM_DEBUG_DEPRECATED == 0)
+
+/* Use SCM_WRONG_NUM_ARGS instead of: */
#define SCM_WNA 8
+/* Use SCM_ASSERT_RANGE or SCM_VALIDATE_XXX_RANGE instead of: */
+#define SCM_OUTOFRANGE 10
+
+/* Use scm_memory_error instead of: */
+#define SCM_NALLOC 11
+
+#define SCM_HUP_SIGNAL 14
+#define SCM_INT_SIGNAL 15
+#define SCM_FPE_SIGNAL 16
+#define SCM_BUS_SIGNAL 17
+#define SCM_SEGV_SIGNAL 18
+#define SCM_ALRM_SIGNAL 19
+#define SCM_GC_SIGNAL 20
+#define SCM_TICK_SIGNAL 21
+#define SCM_SIG_ORD(X) ((X) - SCM_HUP_SIGNAL)
+#define SCM_ORD_SIG(X) ((X) + SCM_HUP_SIGNAL)
+#define SCM_NUM_SIGS (SCM_SIG_ORD (SCM_TICK_SIGNAL) + 1)
+
+#endif /* SCM_DEBUG_DEPRECATED == 0 */
+
#endif /* SCM_MAGIC_SNARFER */
\f
HCoop / bpt / guile.git / blobdiff