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fixed a bug of not resetting the heap limit after gc.

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added some pointer arithmetic macros.
This commit is contained in:
hyunghwan.chung 2015-05-08 14:29:35 +00:00
parent 0b97fee2c4
commit 10661777a1
10 changed files with 152 additions and 81 deletions
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12
stix/lib/dic.c
View File

@ -60,7 +60,7 @@ static stix_oop_oop_t expand_bucket (stix_t* stix, stix_oop_oop_t old_bucket)
return new_bucket;
}
stix_oop_t find_or_insert (stix_t* stix, stix_oop_char_t key, stix_oop_t value)
static stix_oop_t find_or_insert (stix_t* stix, stix_oop_char_t key, stix_oop_t value)
{
stix_oow_t index, tally;
stix_oop_association_t ass;
@ -81,18 +81,12 @@ stix_oop_t find_or_insert (stix_t* stix, stix_oop_char_t key, stix_oop_t value)
STIX_ASSERT (STIX_CLASSOF(stix,ass) == stix->_association);
STIX_ASSERT (STIX_CLASSOF(stix,ass->key) == stix->_symbol);
if (STIX_OBJ_GET_SIZE(key) == STIX_OBJ_GET_SIZE(ass->key))
if (STIX_OBJ_GET_SIZE(key) == STIX_OBJ_GET_SIZE(ass->key) &&
stix_equalchars (key->slot, ((stix_oop_char_t)ass->key)->slot, STIX_OBJ_GET_SIZE(key)))
{
stix_oow_t i;
for (i = 0; i < STIX_OBJ_GET_SIZE(key); i++)
{
if (key->slot[i] != ((stix_oop_char_t)ass->key)->slot[i]) goto not_equal;
}
return (stix_oop_t)ass;
}
not_equal:
index = (index + 1) % STIX_OBJ_GET_SIZE(stix->sysdic->bucket);
}

28
stix/lib/gc.c
View File

@ -26,7 +26,7 @@
#include "stix-prv.h"
static void cleanup_symbols_for_gc (stix_t* stix, stix_oop_t _nil)
static void compact_symbol_table (stix_t* stix, stix_oop_t _nil)
{
stix_oop_char_t symbol;
stix_oow_t tally, index, i, x, y, z;
@ -107,12 +107,11 @@ static stix_oop_t move_one (stix_t* stix, stix_oop_t oop)
}
else
{
stix_oow_t nbytes, nbytes_aligned;
stix_oow_t nbytes_aligned;
stix_oop_t tmp;
/* calculate the payload size in bytes */
nbytes = (oop->_size + STIX_OBJ_GET_FLAGS_EXTRA(oop)) * STIX_OBJ_GET_FLAGS_UNIT(oop);
nbytes_aligned = STIX_ALIGN (nbytes, STIX_SIZEOF(stix_oop_t));
nbytes_aligned = STIX_ALIGN (STIX_OBJ_BYTESOF(oop), STIX_SIZEOF(stix_oop_t));
/* allocate space in the new heap */
tmp = stix_allocheapmem (stix, stix->newheap, STIX_SIZEOF(stix_obj_t) + nbytes_aligned);
@ -144,15 +143,15 @@ static stix_oop_t move_one (stix_t* stix, stix_oop_t oop)
static stix_uint8_t* scan_new_heap (stix_t* stix, stix_uint8_t* ptr)
{
while (ptr < stix->newheap->ptr)
/*while (ptr < stix->newheap->ptr)*/
while (STIX_LTPTR(stix_uint8_t, ptr, stix->newheap->ptr))
{
stix_oow_t i;
stix_oow_t nbytes, nbytes_aligned;
stix_oow_t nbytes_aligned;
stix_oop_t oop;
oop = (stix_oop_t)ptr;
nbytes = (STIX_OBJ_GET_SIZE(oop) + STIX_OBJ_GET_FLAGS_EXTRA(oop)) * STIX_OBJ_GET_FLAGS_UNIT(oop);
nbytes_aligned = STIX_ALIGN (nbytes, STIX_SIZEOF(stix_oop_t));
nbytes_aligned = STIX_ALIGN (STIX_OBJ_BYTESOF(oop), STIX_SIZEOF(stix_oop_t));
STIX_OBJ_SET_CLASS (oop, move_one(stix, STIX_OBJ_GET_CLASS(oop)));
if (STIX_OBJ_GET_FLAGS_TYPE(oop) == STIX_OBJ_TYPE_OOP)
@ -167,8 +166,8 @@ static stix_uint8_t* scan_new_heap (stix_t* stix, stix_uint8_t* ptr)
}
}
/*wprintf (L"ptr in gc => %p size => %d, aligned size => %d\n", ptr, (int)nbytes, (int)nbytes_aligned);*/
ptr = ptr + STIX_SIZEOF(stix_obj_t) + nbytes_aligned;
/*ptr = ptr + STIX_SIZEOF(stix_obj_t) + nbytes_aligned;*/
ptr = STIX_INCPTR (stix_uint8_t, ptr, STIX_SIZEOF(stix_obj_t) + nbytes_aligned);
}
/* return the pointer to the beginning of the free space in the heap */
@ -188,6 +187,8 @@ void stix_gc (stix_t* stix)
stix_oop_t old_nil;
stix_oow_t i;
printf ("STARTING GC curheap base %p ptr %p newheap base %p ptr %p\n",
stix->curheap->base, stix->curheap->ptr, stix->newheap->base, stix->newheap->ptr);
/* TODO: allocate common objects like _nil and the root dictionary
* in the permanant heap. minimize moving around */
old_nil = stix->_nil;
@ -226,7 +227,7 @@ void stix_gc (stix_t* stix)
* if the symbol has not moved to the new heap, the symbol
* is not referenced by any other objects than the symbol
* table itself */
cleanup_symbols_for_gc (stix, old_nil);
compact_symbol_table (stix, old_nil);
/* move the symbol table itself */
stix->symtab = (stix_oop_set_t)move_one (stix, (stix_oop_t)stix->symtab);
@ -236,6 +237,11 @@ void stix_gc (stix_t* stix)
* the symbol table. */
ptr = scan_new_heap (stix, ptr);
/* the contents of the current heap is not needed any more.
* reset the upper bound to the base. don't forget to align the heap
* pointer to the OOP size. See stix_makeheap() also */
stix->curheap->ptr = (stix_uint8_t*)STIX_ALIGN(((stix_uintptr_t)stix->curheap->base), STIX_SIZEOF(stix_oop_t));
/* swap the current heap and old heap */
tmp = stix->curheap;
stix->curheap = stix->newheap;

10
stix/lib/heap.c
View File

@ -42,9 +42,11 @@ stix_heap_t* stix_makeheap (stix_t* stix, stix_size_t size)
heap->base = (stix_uint8_t*)(heap + 1);
/* adjust the initial allocation pointer to a multiple of the oop size */
heap->ptr = (stix_uint8_t*)STIX_ALIGN(((stix_uintptr_t)heap->base), STIX_SIZEOF(stix_oop_t));
heap->limit = heap->base + size;
heap->limit = STIX_INCPTR(stix_uint8_t, heap->base, size); /*heap->base + size;*/
STIX_ASSERT (heap->ptr >= heap->base);
STIX_ASSERT (STIX_GTPTR(stix_uint8_t, heap->limit, heap->base)); /* heap->limit >= heap->base */
STIX_ASSERT (STIX_SUBPTR(stix_uint8_t, heap->limit, heap->base) == size);
/* if size is too small, heap->ptr may go past heap->limit even at
* this moment depending on the alignment of heap->base. subsequent
@ -64,7 +66,9 @@ void* stix_allocheapmem (stix_t* stix, stix_heap_t* heap, stix_size_t size)
stix_uint8_t* ptr;
/* check the heap size limit */
if (heap->ptr >= heap->limit || heap->limit - heap->ptr < size)
/*if (heap->ptr >= heap->limit || heap->limit - heap->ptr < size)*/
if (STIX_GEPTR(stix_uint8_t, heap->ptr, heap->limit) ||
STIX_SUBPTR(stix_uint8_t, heap->limit, heap->ptr) < size)
{
stix->errnum = STIX_ENOMEM;
return STIX_NULL;
@ -72,7 +76,7 @@ void* stix_allocheapmem (stix_t* stix, stix_heap_t* heap, stix_size_t size)
/* allocation is as simple as moving the heap pointer */
ptr = heap->ptr;
heap->ptr += size;
heap->ptr = STIX_INCPTR (stix_uint8_t, heap->ptr, size); /*heap->ptr += size;*/
return ptr;
}

9
stix/lib/ignite.c
View File

@ -180,7 +180,12 @@ static int ignite_2 (stix_t* stix)
if (!stix->symtab) return -1;
stix->symtab->tally = STIX_OOP_FROM_SMINT(0);
arr = (stix_oop_oop_t)stix_instantiate (stix, stix->_array, STIX_NULL, stix->option.default_symtab_size);
/* It's important to assign the result of stix_instantiate() to a temporary
* variable first and then assign it to stix->symtab->bucket.
* The pointer 'stix->symtab; can change in stix_instantiate() and the
* target address of assignment may get set before stix_instantiate()
* is called. */
arr = (stix_oop_oop_t)stix_instantiate (stix, stix->_array, STIX_NULL, stix->option.dfl_symtab_size);
if (!arr) return -1;
stix->symtab->bucket = arr;
@ -189,7 +194,7 @@ static int ignite_2 (stix_t* stix)
if (!stix->sysdic) return -1;
stix->sysdic->tally = STIX_OOP_FROM_SMINT(0);
arr = (stix_oop_oop_t)stix_instantiate (stix, stix->_array, STIX_NULL, stix->option.default_sysdic_size);
arr = (stix_oop_oop_t)stix_instantiate (stix, stix->_array, STIX_NULL, stix->option.dfl_sysdic_size);
if (!arr) return -1;
stix->sysdic->bucket = arr;

46
stix/lib/main.c
View File

@ -1,3 +1,29 @@
/*
* $Id$
*
Copyright (c) 2014-2015 Chung, Hyung-Hwan. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "stix-prv.h"
#include <stdio.h>
@ -69,7 +95,7 @@ int main (int argc, char* argv[])
(unsigned long int)STIX_CLASS_SPEC_INDEXED_TYPE(x));
}
stix = stix_open (&sys_mmgr, 0, 1000000lu, STIX_NULL);
stix = stix_open (&sys_mmgr, 0, 512000lu, STIX_NULL);
if (!stix)
{
printf ("cannot open stix\n");
@ -78,8 +104,8 @@ int main (int argc, char* argv[])
{
stix_oow_t symtab_size = 5000;
stix_setoption (stix, STIX_DEFAULT_SYMTAB_SIZE, &symtab_size);
stix_setoption (stix, STIX_DEFAULT_SYSDIC_SIZE, &symtab_size);
stix_setoption (stix, STIX_DFL_SYMTAB_SIZE, &symtab_size);
stix_setoption (stix, STIX_DFL_SYSDIC_SIZE, &symtab_size);
}
if (stix_ignite(stix) <= -1)
@ -89,6 +115,7 @@ int main (int argc, char* argv[])
return -1;
}
{
stix_char_t x[] = { 'S', 't', 'r', 'i', 'n', 'g', '\0' };
stix_char_t y[] = { 'S', 'y', 'm', 'b', 'o', 'l', '\0' };
@ -98,18 +125,17 @@ a = stix_makesymbol (stix, x, 6);
b = stix_makesymbol (stix, y, 6);
printf ("%p %p\n", a, b);
}
dump_symbol_table (stix);
stix_gc (stix);
a = stix_findsymbol (stix, x, 6);
printf ("%p\n", a);
dump_symbol_table (stix);
}
stix_close (stix);
#if defined(__BORLANDC__)
printf ("Press the enter key...\n");
getchar ();
#endif
return 0;
}

29
stix/lib/obj.c
View File

@ -31,7 +31,7 @@ void* stix_allocbytes (stix_t* stix, stix_size_t size)
stix_uint8_t* ptr;
#if defined(STIX_DEBUG_GC_1)
stix_gc (stix);
stix_gc (stix);
#endif
ptr = stix_allocheapmem (stix, stix->curheap, size);
@ -65,8 +65,8 @@ stix_oop_t stix_allocoopobj (stix_t* stix, stix_oow_t size)
if (!hdr) return STIX_NULL;
hdr->_flags = STIX_OBJ_MAKE_FLAGS(STIX_OBJ_TYPE_OOP, STIX_SIZEOF(stix_oop_t), 0, 0, 0);
hdr->_size = size;
hdr->_class = stix->_nil;
STIX_OBJ_SET_SIZE (hdr, size);
STIX_OBJ_SET_CLASS (hdr, stix->_nil);
while (size > 0) hdr->slot[--size] = stix->_nil;
@ -85,7 +85,7 @@ static stix_oop_t alloc_numeric_array (stix_t* stix, const void* ptr, stix_oow_t
* it's useful to store a string with a terminating null */
nbytes = extra? xbytes + len: xbytes;
nbytes_aligned = STIX_ALIGN(nbytes, STIX_SIZEOF(stix_oop_t));
/* TODO: check overflow in size calculation*/
/* TODO: check overflow in size calculation*/
/* making the number of bytes to allocate a multiple of
* STIX_SIZEOF(stix_oop_t) will guarantee the starting address
@ -96,7 +96,8 @@ static stix_oop_t alloc_numeric_array (stix_t* stix, const void* ptr, stix_oow_t
hdr->_flags = STIX_OBJ_MAKE_FLAGS(type, unit, extra, 0, 0);
hdr->_size = len;
hdr->_class = stix->_nil;
STIX_OBJ_SET_SIZE (hdr, len);
STIX_OBJ_SET_CLASS (hdr, stix->_nil);
if (ptr)
{
@ -135,6 +136,7 @@ stix_oop_t stix_instantiate (stix_t* stix, stix_oop_t _class, const void* vptr,
stix_oow_t spec;
stix_oow_t named_instvar;
stix_obj_type_t indexed_type;
stix_oow_t tmp_count = 0;
STIX_ASSERT (stix->_nil != STIX_NULL);
@ -174,7 +176,7 @@ stix_oop_t stix_instantiate (stix_t* stix, stix_oop_t _class, const void* vptr,
if (named_instvar > STIX_MAX_NAMED_INSTVARS) goto einval;
}
stix_pushtmp (stix, &_class);
stix_pushtmp (stix, &_class); tmp_count++;
switch (indexed_type)
{
@ -182,9 +184,8 @@ stix_oop_t stix_instantiate (stix_t* stix, stix_oop_t _class, const void* vptr,
/* both the fixed part(named instance variables) and
* the variable part(indexed instance variables) are allowed. */
oop = stix_allocoopobj(stix, named_instvar + vlen);
if (!oop) return STIX_NULL;
if (vptr && vlen > 0)
if (oop && vptr && vlen > 0)
{
stix_oop_oop_t hdr = (stix_oop_oop_t)oop;
STIX_MEMCPY (&hdr->slot[named_instvar], vptr, vlen * STIX_SIZEOF(stix_oop_t));
@ -193,30 +194,26 @@ stix_oop_t stix_instantiate (stix_t* stix, stix_oop_t _class, const void* vptr,
case STIX_OBJ_TYPE_CHAR:
oop = stix_alloccharobj(stix, vptr, vlen);
if (!oop) return STIX_NULL;
break;
case STIX_OBJ_TYPE_UINT8:
oop = stix_allocuint8obj(stix, vptr, vlen);
if (!oop) return STIX_NULL;
break;
case STIX_OBJ_TYPE_UINT16:
oop = stix_allocuint16obj(stix, vptr, vlen);
if (!oop) return STIX_NULL;
break;
default:
stix->errnum = STIX_EINTERN;
return STIX_NULL;
oop = STIX_NULL;
break;
}
STIX_OBJ_SET_CLASS (oop, _class);
stix_poptmp (stix);
if (oop) STIX_OBJ_SET_CLASS (oop, _class);
stix_poptmps (stix, tmp_count);
return oop;
einval:
stix->errnum = STIX_EINVAL;
return STIX_NULL;

8
stix/lib/stix-prv.h
View File

@ -171,7 +171,13 @@ stix_oow_t stix_hashbytes (
stix_oow_t stix_hashchars (
const stix_char_t* ptr,
stix_size_t len
stix_oow_t len
);
int stix_equalchars (
const stix_char_t* str1,
const stix_char_t* str2,
stix_oow_t len
);
/* ========================================================================= */

29
stix/lib/stix.c
View File

@ -92,11 +92,11 @@ int stix_setoption (stix_t* stix, stix_option_t id, const void* value)
stix->option.trait = *(const int*)value;
return 0;
case STIX_DEFAULT_SYMTAB_SIZE:
stix->option.default_symtab_size = *(stix_oow_t*)value;
case STIX_DFL_SYMTAB_SIZE:
stix->option.dfl_symtab_size = *(stix_oow_t*)value;
case STIX_DEFAULT_SYSDIC_SIZE:
stix->option.default_sysdic_size = *(stix_oow_t*)value;
case STIX_DFL_SYSDIC_SIZE:
stix->option.dfl_sysdic_size = *(stix_oow_t*)value;
}
stix->errnum = STIX_EINVAL;
@ -111,11 +111,11 @@ int stix_getoption (stix_t* stix, stix_option_t id, void* value)
*(int*)value = stix->option.trait;
return 0;
case STIX_DEFAULT_SYMTAB_SIZE:
*(stix_oow_t*)value = stix->option.default_symtab_size;
case STIX_DFL_SYMTAB_SIZE:
*(stix_oow_t*)value = stix->option.dfl_symtab_size;
case STIX_DEFAULT_SYSDIC_SIZE:
*(stix_oow_t*)value = stix->option.default_sysdic_size;
case STIX_DFL_SYSDIC_SIZE:
*(stix_oow_t*)value = stix->option.dfl_sysdic_size;
};
stix->errnum = STIX_EINVAL;
@ -134,9 +134,20 @@ stix_oow_t stix_hashbytes (const stix_uint8_t* ptr, stix_oow_t len)
return h;
}
stix_oow_t stix_hashchars (const stix_char_t* ptr, stix_size_t len)
stix_oow_t stix_hashchars (const stix_char_t* ptr, stix_oow_t len)
{
return stix_hashbytes ((const stix_uint8_t *)ptr, len * STIX_SIZEOF(*ptr));
}
int stix_equalchars (const stix_char_t* str1, const stix_char_t* str2, stix_oow_t len)
{
stix_oow_t i;
for (i = 0; i < len; i++)
{
if (str1[i] != str2[i]) return 0;
}
return 1;
}

50
stix/lib/stix.h
View File

@ -27,6 +27,26 @@
#ifndef _STIX_H_
#define _STIX_H_
#if defined(__MSDOS__)
# define STIX_INCPTR(type,base,inc) (((type __huge*)base) + (inc))
# define STIX_DECPTR(type,base,inc) (((type __huge*)base) - (inc))
# define STIX_GTPTR(type,ptr1,ptr2) (((type __huge*)ptr1) > ((type __huge*)ptr2))
# define STIX_GEPTR(type,ptr1,ptr2) (((type __huge*)ptr1) >= ((type __huge*)ptr2))
# define STIX_LTPTR(type,ptr1,ptr2) (((type __huge*)ptr1) < ((type __huge*)ptr2))
# define STIX_LEPTR(type,ptr1,ptr2) (((type __huge*)ptr1) <= ((type __huge*)ptr2))
# define STIX_EQPTR(type,ptr1,ptr2) (((type __huge*)ptr1) == ((type __huge*)ptr2))
# define STIX_SUBPTR(type,ptr1,ptr2) (((type __huge*)ptr1) - ((type __huge*)ptr2))
#else
# define STIX_INCPTR(type,base,inc) (((type*)base) + (inc))
# define STIX_DECPTR(type,base,inc) (((type*)base) - (inc))
# define STIX_GTPTR(type,ptr1,ptr2) (((type*)ptr1) > ((type*)ptr2))
# define STIX_GEPTR(type,ptr1,ptr2) (((type*)ptr1) >= ((type*)ptr2))
# define STIX_LTPTR(type,ptr1,ptr2) (((type*)ptr1) < ((type*)ptr2))
# define STIX_LEPTR(type,ptr1,ptr2) (((type*)ptr1) <= ((type*)ptr2))
# define STIX_EQPTR(type,ptr1,ptr2) (((type*)ptr1) == ((type*)ptr2))
# define STIX_SUBPTR(type,ptr1,ptr2) (((type*)ptr1) - ((type*)ptr2))
#endif
/* ========================================================================== */
/* TODO: define these types and macros using autoconf */
typedef unsigned char stix_uint8_t;
@ -189,8 +209,8 @@ typedef enum stix_errnum_t stix_errnum_t;
enum stix_option_t
{
STIX_TRAIT,
STIX_DEFAULT_SYMTAB_SIZE,
STIX_DEFAULT_SYSDIC_SIZE
STIX_DFL_SYMTAB_SIZE,
STIX_DFL_SYSDIC_SIZE
};
typedef enum stix_option_t stix_option_t;
@ -495,8 +515,12 @@ typedef enum stix_obj_type_t stix_obj_type_t;
#define STIX_OBJ_GET_SIZE(oop) ((oop)->_size)
#define STIX_OBJ_GET_CLASS(oop) ((oop)->_class)
#define STIX_OBJ_SET_SIZE(oop,v) ((oop)->_size = (v))
#define STIX_OBJ_SET_CLASS(oop,c) ((oop)->_class = (c))
#define STIX_OBJ_BYTESOF(oop) ((STIX_OBJ_GET_SIZE(oop) + STIX_OBJ_GET_FLAGS_EXTRA(oop)) * STIX_OBJ_GET_FLAGS_UNIT(oop))
/* this macro doesn't check the range of the actual value.
* make sure that the value of each bit fields given fall within the number
* of defined bits */
@ -655,18 +679,22 @@ enum stix_class_desc_t
};
#endif
/**
* The STIX_CLASSOF() macro return the class of an object including a numeric
* object encoded into a pointer.
*/
#define STIX_CLASSOF(stix,oop) ( \
STIX_OOP_IS_SMINT(oop)? (stix)->_small_integer: \
STIX_OOP_IS_CHAR(oop)? (stix)->_character: (oop)->_class \
STIX_OOP_IS_CHAR(oop)? (stix)->_character: STIX_OBJ_GET_CLASS(oop) \
)
/*
/**
* The STIX_BYTESOF() macro returns the size of the payload of
* an object in bytes. If the pointer given encodes a numeric value,
* it returns the size of #stix_oow_t in bytes.
*/
#define STIX_BYTESOF(stix,oop) \
(STIX_OOP_IS_NUMERIC(oop)? \
(STIX_SIZEOF(stix_oow_t)): \
(STIX_SIZEOF(stix_obj_t) + STIX_ALIGN(((oop)->size + (oop)->extra) * (oop)->unit), STIX_SIZEOF(stix_oop_t)) \
)
*/
(STIX_OOP_IS_NUMERIC(oop)? STIX_SIZEOF(stix_oow_t): STIX_OBJ_BYTESOF(oop))
typedef struct stix_heap_t stix_heap_t;
@ -687,8 +715,8 @@ struct stix_t
struct
{
int trait;
stix_oow_t default_symtab_size;
stix_oow_t default_sysdic_size;
stix_oow_t dfl_symtab_size;
stix_oow_t dfl_sysdic_size;
} option;
/* ========================= */

10
stix/lib/sym.c
View File

@ -79,18 +79,12 @@ static stix_oop_t find_or_make_symbol (stix_t* stix, const stix_char_t* ptr, sti
symbol = (stix_oop_char_t)stix->symtab->bucket->slot[index];
STIX_ASSERT (STIX_CLASSOF(stix,symbol) == (stix_oop_t)stix->_symbol);
if (len == STIX_OBJ_GET_SIZE(symbol))
if (len == STIX_OBJ_GET_SIZE(symbol) &&
stix_equalchars (ptr, symbol->slot, len))
{
stix_oow_t i;
for (i = 0; i < len; i++)
{
if (ptr[i] != symbol->slot[i]) goto not_equal;
}
return (stix_oop_t)symbol;
}
not_equal:
index = (index + 1) % STIX_OBJ_GET_SIZE(stix->symtab->bucket);
}