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Diffstat (limited to 'libguile/bytevectors.h')
-rw-r--r-- | libguile/bytevectors.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/libguile/bytevectors.h b/libguile/bytevectors.h new file mode 100644 index 000000000..98c38aca2 --- /dev/null +++ b/libguile/bytevectors.h @@ -0,0 +1,133 @@ +#ifndef SCM_BYTEVECTORS_H +#define SCM_BYTEVECTORS_H + +/* Copyright (C) 2009 Free Software Foundation, Inc. + * + * 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 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 + * Lesser General Public License for more details. + * + * 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 + */ + + + +#include "libguile/__scm.h" + + +/* R6RS bytevectors. */ + +#define SCM_BYTEVECTOR_LENGTH(_bv) \ + ((unsigned) SCM_SMOB_DATA (_bv)) +#define SCM_BYTEVECTOR_CONTENTS(_bv) \ + (SCM_BYTEVECTOR_INLINE_P (_bv) \ + ? (signed char *) SCM_SMOB_OBJECT_2_LOC (_bv) \ + : (signed char *) SCM_SMOB_DATA_2 (_bv)) + + +SCM_API SCM scm_endianness_big; +SCM_API SCM scm_endianness_little; + +SCM_API SCM scm_make_bytevector (SCM, SCM); +SCM_API SCM scm_c_make_bytevector (unsigned); +SCM_API SCM scm_native_endianness (void); +SCM_API SCM scm_bytevector_p (SCM); +SCM_API SCM scm_bytevector_length (SCM); +SCM_API SCM scm_bytevector_eq_p (SCM, SCM); +SCM_API SCM scm_bytevector_fill_x (SCM, SCM); +SCM_API SCM scm_bytevector_copy_x (SCM, SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_copy (SCM); + +SCM_API SCM scm_bytevector_to_u8_list (SCM); +SCM_API SCM scm_u8_list_to_bytevector (SCM); +SCM_API SCM scm_uint_list_to_bytevector (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_to_uint_list (SCM, SCM, SCM); +SCM_API SCM scm_sint_list_to_bytevector (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_to_sint_list (SCM, SCM, SCM); + +SCM_API SCM scm_bytevector_u16_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s16_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_u32_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s32_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_u64_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s64_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_u8_ref (SCM, SCM); +SCM_API SCM scm_bytevector_s8_ref (SCM, SCM); +SCM_API SCM scm_bytevector_uint_ref (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_sint_ref (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u16_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s16_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u32_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s32_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u64_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s64_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u16_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s16_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u32_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s32_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u64_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s64_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u8_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s8_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_uint_set_x (SCM, SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_sint_set_x (SCM, SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u16_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s16_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u32_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s32_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_u64_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_s64_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_single_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_ref (SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_native_ref (SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_set_x (SCM, SCM, SCM, SCM); +SCM_API SCM scm_bytevector_ieee_double_native_set_x (SCM, SCM, SCM); +SCM_API SCM scm_string_to_utf8 (SCM); +SCM_API SCM scm_string_to_utf16 (SCM, SCM); +SCM_API SCM scm_string_to_utf32 (SCM, SCM); +SCM_API SCM scm_utf8_to_string (SCM); +SCM_API SCM scm_utf16_to_string (SCM, SCM); +SCM_API SCM scm_utf32_to_string (SCM, SCM); + + + +/* Internal API. */ + +/* The threshold (in octets) under which bytevectors are stored "in-line", + i.e., without allocating memory beside the SMOB itself (a double cell). + This optimization is necessary since small bytevectors are expected to be + common. */ +#define SCM_BYTEVECTOR_INLINE_THRESHOLD (2 * sizeof (SCM)) +#define SCM_BYTEVECTOR_INLINEABLE_SIZE_P(_size) \ + ((_size) <= SCM_BYTEVECTOR_INLINE_THRESHOLD) +#define SCM_BYTEVECTOR_INLINE_P(_bv) \ + (SCM_BYTEVECTOR_INLINEABLE_SIZE_P (SCM_BYTEVECTOR_LENGTH (_bv))) + +/* Hint that is passed to `scm_gc_malloc ()' and friends. */ +#define SCM_GC_BYTEVECTOR "bytevector" + +SCM_API void scm_init_bytevectors (void); + +SCM_INTERNAL scm_t_bits scm_tc16_bytevector; +SCM_INTERNAL SCM scm_c_take_bytevector (signed char *, unsigned); + +#define scm_c_shrink_bytevector(_bv, _len) \ + (SCM_BYTEVECTOR_INLINE_P (_bv) \ + ? (_bv) \ + : scm_i_shrink_bytevector ((_bv), (_len))) + +SCM_INTERNAL SCM scm_i_shrink_bytevector (SCM, unsigned); +SCM_INTERNAL SCM scm_null_bytevector; + +#endif /* SCM_BYTEVECTORS_H */ |