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1 | #ifndef SCM_BYTEVECTORS_H |
2 | #define SCM_BYTEVECTORS_H | |
3 | ||
4 | /* Copyright (C) 2009 Free Software Foundation, Inc. | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | \f | |
22 | ||
23 | #include "libguile/__scm.h" | |
24 | ||
25 | ||
26 | /* R6RS bytevectors. */ | |
27 | ||
28 | #define SCM_BYTEVECTOR_LENGTH(_bv) \ | |
29 | ((unsigned) SCM_SMOB_DATA (_bv)) | |
30 | #define SCM_BYTEVECTOR_CONTENTS(_bv) \ | |
31 | (SCM_BYTEVECTOR_INLINE_P (_bv) \ | |
32 | ? (signed char *) SCM_SMOB_OBJECT_2_LOC (_bv) \ | |
33 | : (signed char *) SCM_SMOB_DATA_2 (_bv)) | |
34 | ||
35 | ||
36 | SCM_API SCM scm_endianness_big; | |
37 | SCM_API SCM scm_endianness_little; | |
38 | ||
39 | SCM_API SCM scm_make_bytevector (SCM, SCM); | |
40 | SCM_API SCM scm_c_make_bytevector (unsigned); | |
41 | SCM_API SCM scm_native_endianness (void); | |
42 | SCM_API SCM scm_bytevector_p (SCM); | |
43 | SCM_API SCM scm_bytevector_length (SCM); | |
44 | SCM_API SCM scm_bytevector_eq_p (SCM, SCM); | |
45 | SCM_API SCM scm_bytevector_fill_x (SCM, SCM); | |
46 | SCM_API SCM scm_bytevector_copy_x (SCM, SCM, SCM, SCM, SCM); | |
47 | SCM_API SCM scm_bytevector_copy (SCM); | |
48 | ||
49 | SCM_API SCM scm_bytevector_to_u8_list (SCM); | |
50 | SCM_API SCM scm_u8_list_to_bytevector (SCM); | |
51 | SCM_API SCM scm_uint_list_to_bytevector (SCM, SCM, SCM); | |
52 | SCM_API SCM scm_bytevector_to_uint_list (SCM, SCM, SCM); | |
53 | SCM_API SCM scm_sint_list_to_bytevector (SCM, SCM, SCM); | |
54 | SCM_API SCM scm_bytevector_to_sint_list (SCM, SCM, SCM); | |
55 | ||
56 | SCM_API SCM scm_bytevector_u16_native_ref (SCM, SCM); | |
57 | SCM_API SCM scm_bytevector_s16_native_ref (SCM, SCM); | |
58 | SCM_API SCM scm_bytevector_u32_native_ref (SCM, SCM); | |
59 | SCM_API SCM scm_bytevector_s32_native_ref (SCM, SCM); | |
60 | SCM_API SCM scm_bytevector_u64_native_ref (SCM, SCM); | |
61 | SCM_API SCM scm_bytevector_s64_native_ref (SCM, SCM); | |
62 | SCM_API SCM scm_bytevector_u8_ref (SCM, SCM); | |
63 | SCM_API SCM scm_bytevector_s8_ref (SCM, SCM); | |
64 | SCM_API SCM scm_bytevector_uint_ref (SCM, SCM, SCM, SCM); | |
65 | SCM_API SCM scm_bytevector_sint_ref (SCM, SCM, SCM, SCM); | |
66 | SCM_API SCM scm_bytevector_u16_ref (SCM, SCM, SCM); | |
67 | SCM_API SCM scm_bytevector_s16_ref (SCM, SCM, SCM); | |
68 | SCM_API SCM scm_bytevector_u32_ref (SCM, SCM, SCM); | |
69 | SCM_API SCM scm_bytevector_s32_ref (SCM, SCM, SCM); | |
70 | SCM_API SCM scm_bytevector_u64_ref (SCM, SCM, SCM); | |
71 | SCM_API SCM scm_bytevector_s64_ref (SCM, SCM, SCM); | |
72 | SCM_API SCM scm_bytevector_u16_native_set_x (SCM, SCM, SCM); | |
73 | SCM_API SCM scm_bytevector_s16_native_set_x (SCM, SCM, SCM); | |
74 | SCM_API SCM scm_bytevector_u32_native_set_x (SCM, SCM, SCM); | |
75 | SCM_API SCM scm_bytevector_s32_native_set_x (SCM, SCM, SCM); | |
76 | SCM_API SCM scm_bytevector_u64_native_set_x (SCM, SCM, SCM); | |
77 | SCM_API SCM scm_bytevector_s64_native_set_x (SCM, SCM, SCM); | |
78 | SCM_API SCM scm_bytevector_u8_set_x (SCM, SCM, SCM); | |
79 | SCM_API SCM scm_bytevector_s8_set_x (SCM, SCM, SCM); | |
80 | SCM_API SCM scm_bytevector_uint_set_x (SCM, SCM, SCM, SCM, SCM); | |
81 | SCM_API SCM scm_bytevector_sint_set_x (SCM, SCM, SCM, SCM, SCM); | |
82 | SCM_API SCM scm_bytevector_u16_set_x (SCM, SCM, SCM, SCM); | |
83 | SCM_API SCM scm_bytevector_s16_set_x (SCM, SCM, SCM, SCM); | |
84 | SCM_API SCM scm_bytevector_u32_set_x (SCM, SCM, SCM, SCM); | |
85 | SCM_API SCM scm_bytevector_s32_set_x (SCM, SCM, SCM, SCM); | |
86 | SCM_API SCM scm_bytevector_u64_set_x (SCM, SCM, SCM, SCM); | |
87 | SCM_API SCM scm_bytevector_s64_set_x (SCM, SCM, SCM, SCM); | |
88 | SCM_API SCM scm_bytevector_ieee_single_ref (SCM, SCM, SCM); | |
89 | SCM_API SCM scm_bytevector_ieee_single_native_ref (SCM, SCM); | |
90 | SCM_API SCM scm_bytevector_ieee_single_set_x (SCM, SCM, SCM, SCM); | |
91 | SCM_API SCM scm_bytevector_ieee_single_native_set_x (SCM, SCM, SCM); | |
92 | SCM_API SCM scm_bytevector_ieee_double_ref (SCM, SCM, SCM); | |
93 | SCM_API SCM scm_bytevector_ieee_double_native_ref (SCM, SCM); | |
94 | SCM_API SCM scm_bytevector_ieee_double_set_x (SCM, SCM, SCM, SCM); | |
95 | SCM_API SCM scm_bytevector_ieee_double_native_set_x (SCM, SCM, SCM); | |
96 | SCM_API SCM scm_string_to_utf8 (SCM); | |
97 | SCM_API SCM scm_string_to_utf16 (SCM, SCM); | |
98 | SCM_API SCM scm_string_to_utf32 (SCM, SCM); | |
99 | SCM_API SCM scm_utf8_to_string (SCM); | |
100 | SCM_API SCM scm_utf16_to_string (SCM, SCM); | |
101 | SCM_API SCM scm_utf32_to_string (SCM, SCM); | |
102 | ||
103 | ||
104 | \f | |
105 | /* Internal API. */ | |
106 | ||
107 | /* The threshold (in octets) under which bytevectors are stored "in-line", | |
108 | i.e., without allocating memory beside the SMOB itself (a double cell). | |
109 | This optimization is necessary since small bytevectors are expected to be | |
110 | common. */ | |
111 | #define SCM_BYTEVECTOR_INLINE_THRESHOLD (2 * sizeof (SCM)) | |
112 | #define SCM_BYTEVECTOR_INLINEABLE_SIZE_P(_size) \ | |
113 | ((_size) <= SCM_BYTEVECTOR_INLINE_THRESHOLD) | |
114 | #define SCM_BYTEVECTOR_INLINE_P(_bv) \ | |
115 | (SCM_BYTEVECTOR_INLINEABLE_SIZE_P (SCM_BYTEVECTOR_LENGTH (_bv))) | |
116 | ||
117 | /* Hint that is passed to `scm_gc_malloc ()' and friends. */ | |
118 | #define SCM_GC_BYTEVECTOR "bytevector" | |
119 | ||
120 | SCM_API void scm_init_bytevectors (void); | |
121 | ||
122 | SCM_INTERNAL scm_t_bits scm_tc16_bytevector; | |
123 | SCM_INTERNAL SCM scm_c_take_bytevector (signed char *, unsigned); | |
124 | ||
125 | #define scm_c_shrink_bytevector(_bv, _len) \ | |
126 | (SCM_BYTEVECTOR_INLINE_P (_bv) \ | |
127 | ? (_bv) \ | |
128 | : scm_i_shrink_bytevector ((_bv), (_len))) | |
129 | ||
130 | SCM_INTERNAL SCM scm_i_shrink_bytevector (SCM, unsigned); | |
131 | SCM_INTERNAL SCM scm_null_bytevector; | |
132 | ||
133 | #endif /* SCM_BYTEVECTORS_H */ |