diff options
Diffstat (limited to 'libguile/bytevectors.c')
-rw-r--r-- | libguile/bytevectors.c | 43 |
1 files changed, 30 insertions, 13 deletions
diff --git a/libguile/bytevectors.c b/libguile/bytevectors.c index dc326f526..668c46d17 100644 --- a/libguile/bytevectors.c +++ b/libguile/bytevectors.c @@ -193,6 +193,9 @@ SCM_SET_BYTEVECTOR_FLAGS ((bv), \ (hint) \ | (SCM_BYTEVECTOR_CONTIGUOUS_P (bv) << 8UL)) +#define SCM_BYTEVECTOR_SET_PARENT(_bv, _parent) \ + SCM_SET_CELL_OBJECT_3 ((_bv), (_parent)) + #define SCM_BYTEVECTOR_TYPE_SIZE(var) \ (scm_i_array_element_type_sizes[SCM_BYTEVECTOR_ELEMENT_TYPE (var)]/8) #define SCM_BYTEVECTOR_TYPED_LENGTH(var) \ @@ -210,7 +213,7 @@ make_bytevector (size_t len, scm_t_array_element_type element_type) if (SCM_UNLIKELY (element_type > SCM_ARRAY_ELEMENT_TYPE_LAST || scm_i_array_element_type_sizes[element_type] < 8 - || len >= (SCM_I_SIZE_MAX + || len >= (((size_t) -1) / (scm_i_array_element_type_sizes[element_type]/8)))) /* This would be an internal Guile programming error */ abort (); @@ -226,13 +229,14 @@ make_bytevector (size_t len, scm_t_array_element_type element_type) contents = scm_gc_malloc_pointerless (SCM_BYTEVECTOR_HEADER_BYTES + c_len, SCM_GC_BYTEVECTOR); - ret = PTR2SCM (contents); + ret = SCM_PACK_POINTER (contents); contents += SCM_BYTEVECTOR_HEADER_BYTES; SCM_BYTEVECTOR_SET_LENGTH (ret, c_len); SCM_BYTEVECTOR_SET_CONTENTS (ret, contents); SCM_BYTEVECTOR_SET_CONTIGUOUS_P (ret, 1); SCM_BYTEVECTOR_SET_ELEMENT_TYPE (ret, element_type); + SCM_BYTEVECTOR_SET_PARENT (ret, SCM_BOOL_F); } return ret; @@ -253,7 +257,7 @@ make_bytevector_from_buffer (size_t len, void *contents, { size_t c_len; - ret = PTR2SCM (scm_gc_malloc (SCM_BYTEVECTOR_HEADER_BYTES, + ret = SCM_PACK_POINTER (scm_gc_malloc (SCM_BYTEVECTOR_HEADER_BYTES, SCM_GC_BYTEVECTOR)); c_len = len * (scm_i_array_element_type_sizes[element_type] / 8); @@ -262,6 +266,7 @@ make_bytevector_from_buffer (size_t len, void *contents, SCM_BYTEVECTOR_SET_CONTENTS (ret, contents); SCM_BYTEVECTOR_SET_CONTIGUOUS_P (ret, 0); SCM_BYTEVECTOR_SET_ELEMENT_TYPE (ret, element_type); + SCM_BYTEVECTOR_SET_PARENT (ret, SCM_BOOL_F); } return ret; @@ -282,19 +287,31 @@ scm_i_make_typed_bytevector (size_t len, scm_t_array_element_type element_type) return make_bytevector (len, element_type); } -/* Return a bytevector of size LEN made up of CONTENTS. The area pointed to - by CONTENTS must have been allocated using `scm_gc_malloc ()'. */ +/* Return a bytevector of size LEN made up of CONTENTS. The area + pointed to by CONTENTS must be protected from GC somehow: either + because it was allocated using `scm_gc_malloc ()', or because it is + part of PARENT. */ SCM -scm_c_take_gc_bytevector (signed char *contents, size_t len) +scm_c_take_gc_bytevector (signed char *contents, size_t len, SCM parent) { - return make_bytevector_from_buffer (len, contents, SCM_ARRAY_ELEMENT_TYPE_VU8); + SCM ret; + + ret = make_bytevector_from_buffer (len, contents, SCM_ARRAY_ELEMENT_TYPE_VU8); + SCM_BYTEVECTOR_SET_PARENT (ret, parent); + + return ret; } SCM scm_c_take_typed_bytevector (signed char *contents, size_t len, - scm_t_array_element_type element_type) + scm_t_array_element_type element_type, SCM parent) { - return make_bytevector_from_buffer (len, contents, element_type); + SCM ret; + + ret = make_bytevector_from_buffer (len, contents, element_type); + SCM_BYTEVECTOR_SET_PARENT (ret, parent); + + return ret; } /* Shrink BV to C_NEW_LEN (which is assumed to be smaller than its current @@ -398,17 +415,17 @@ scm_i_print_bytevector (SCM bv, SCM port, scm_print_state *pstate SCM_UNUSED) scm_array_get_handle (bv, &h); - scm_putc ('#', port); + scm_putc_unlocked ('#', port); scm_write (scm_array_handle_element_type (&h), port); - scm_putc ('(', port); + scm_putc_unlocked ('(', port); for (i = h.dims[0].lbnd, ubnd = h.dims[0].ubnd, inc = h.dims[0].inc; i <= ubnd; i += inc) { if (i > 0) - scm_putc (' ', port); + scm_putc_unlocked (' ', port); scm_write (scm_array_handle_ref (&h, i), port); } - scm_putc (')', port); + scm_putc_unlocked (')', port); return 1; } |