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7ed54fd36d
* libguile/array-handle.c (initialize_vector_handle): Add mutable_p argument. Unless the vector handle is mutable, null out its writable_elements member. (scm_array_get_handle): Adapt to determine mutability of the various arrays. (scm_array_handle_elements, scm_array_handle_writable_elements): Reverse the sense: instead of implementing read-only in terms of read-write, go the other way around, adding an assertion in the read-write case that the array handle is mutable. * libguile/array-map.c (racp): Assert that the destination is mutable. * libguile/bitvectors.c (SCM_F_BITVECTOR_IMMUTABLE, IS_BITVECTOR): (IS_MUTABLE_BITVECTOR): Add a flag to indicate immutability. (scm_i_bitvector_bits): Fix indentation. (scm_i_is_mutable_bitvector): New helper. (scm_array_handle_bit_elements) ((scm_array_handle_bit_writable_elements): Build writable_elements in terms of elements. (scm_bitvector_elements, scm_bitvector_writable_elements): Likewise. (scm_c_bitvector_set_x): Require a mutable bitvector for the fast-path. (scm_bitvector_to_list, scm_bit_count): Use read-only elements() function. * libguile/bitvectors.h (scm_i_is_mutable_bitvector): New decl. * libguile/bytevectors.c (INTEGER_ACCESSOR_PROLOGUE): (INTEGER_GETTER_PROLOGUE, INTEGER_SETTER_PROLOGUE): (INTEGER_REF, INTEGER_NATIVE_REF, INTEGER_SET, INTEGER_NATIVE_SET): (GENERIC_INTEGER_ACCESSOR_PROLOGUE): (GENERIC_INTEGER_GETTER_PROLOGUE, GENERIC_INTEGER_SETTER_PROLOGUE): (LARGE_INTEGER_NATIVE_REF, LARGE_INTEGER_NATIVE_SET): (IEEE754_GETTER_PROLOGUE, IEEE754_SETTER_PROLOGUE): (IEEE754_REF, IEEE754_NATIVE_REF, IEEE754_SET, IEEE754_NATIVE_SET): Setters require a mutable bytevector. (SCM_BYTEVECTOR_SET_FLAG): New helper. (SCM_BYTEVECTOR_SET_CONTIGUOUS_P, SCM_BYTEVECTOR_SET_ELEMENT_TYPE): Remove helpers. (SCM_VALIDATE_MUTABLE_BYTEVECTOR): New helper. (make_bytevector, make_bytevector_from_buffer): Use SCM_SET_BYTEVECTOR_FLAGS. (scm_c_bytevector_set_x, scm_bytevector_fill_x) (scm_bytevector_copy_x): Require a mutable bytevector. * libguile/bytevectors.h (SCM_F_BYTEVECTOR_CONTIGUOUS) (SCM_F_BYTEVECTOR_IMMUTABLE, SCM_MUTABLE_BYTEVECTOR_P): New definitions. * libguile/bytevectors.h (SCM_BYTEVECTOR_CONTIGUOUS_P): Just access one bit. * libguile/srfi-4.c (DEFINE_SRFI_4_C_FUNCS): Implement writable_elements() in terms of elements(). * libguile/strings.c (scm_i_string_is_mutable): New helper. * libguile/uniform.c (scm_array_handle_uniform_elements): (scm_array_handle_uniform_writable_elements): Implement writable_elements in terms of elements. * libguile/vectors.c (SCM_VALIDATE_MUTABLE_VECTOR): New helper. (scm_vector_elements, scm_vector_writable_elements): Implement writable_elements in terms of elements. (scm_c_vector_set_x): Require a mutable vector. * libguile/vectors.h (SCM_F_VECTOR_IMMUTABLE, SCM_I_IS_MUTABLE_VECTOR): New definitions. * libguile/vm-engine.c (VM_VALIDATE_MUTABLE_BYTEVECTOR): (VM_VALIDATE_MUTABLE_VECTOR, vector-set!, vector-set!/immediate) (BV_BOUNDED_SET, BV_SET): Require mutable bytevector/vector. * libguile/vm.c (vm_error_not_a_mutable_bytevector): (vm_error_not_a_mutable_vector): New definitions. * module/system/vm/assembler.scm (link-data): Mark residualized vectors, bytevectors, and bitvectors as being read-only.
97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/* Copyright (C) 1995,1996,1997,1998,2000,2001,2002,2003,2004, 2005, 2006, 2009, 2010, 2013, 2014 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "libguile/_scm.h"
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#include "libguile/__scm.h"
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#include "libguile/uniform.h"
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const size_t scm_i_array_element_type_sizes[SCM_ARRAY_ELEMENT_TYPE_LAST + 1] = {
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0,
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0,
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1,
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8,
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8, 8,
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16, 16,
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32, 32,
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64, 64,
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32, 64,
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64, 128
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};
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size_t
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scm_array_handle_uniform_element_size (scm_t_array_handle *h)
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{
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size_t ret = scm_i_array_element_type_sizes[h->element_type];
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if (ret && ret % 8 == 0)
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return ret / 8;
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else if (ret)
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scm_wrong_type_arg_msg (NULL, 0, h->array, "byte-aligned uniform array");
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else
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scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array");
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}
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size_t
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scm_array_handle_uniform_element_bit_size (scm_t_array_handle *h)
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{
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size_t ret = scm_i_array_element_type_sizes[h->element_type];
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if (ret)
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return ret;
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else
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scm_wrong_type_arg_msg (NULL, 0, h->array, "uniform array");
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}
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const void *
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scm_array_handle_uniform_elements (scm_t_array_handle *h)
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{
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size_t esize;
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const scm_t_uint8 *ret;
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esize = scm_array_handle_uniform_element_size (h);
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ret = ((const scm_t_uint8 *) h->elements) + h->base * esize;
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return ret;
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}
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void *
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scm_array_handle_uniform_writable_elements (scm_t_array_handle *h)
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{
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if (h->writable_elements != h->elements)
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scm_wrong_type_arg_msg (NULL, 0, h->array, "mutable array");
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return (void *) scm_array_handle_uniform_elements (h);
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}
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void
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scm_init_uniform (void)
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{
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#include "libguile/uniform.x"
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}
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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