/* Malloc implementation for multiple threads without lock contention.
- Copyright (C) 2001-2006, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2001-2006, 2007, 2008, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Wolfram Gloger <wg@malloc.de>, 2001.
#if 0 /* Erase freed memory. */
memset(mem, 0, chunksize(p) - (SIZE_SZ+1));
#endif
- _int_free(&main_arena, mem);
+ _int_free(&main_arena, p);
(void)mutex_unlock(&main_arena.mutex);
}
Void_t* oldmem; size_t bytes; const Void_t *caller;
#endif
{
- mchunkptr oldp;
- INTERNAL_SIZE_T nb, oldsize;
+ INTERNAL_SIZE_T nb;
Void_t* newmem = 0;
unsigned char *magic_p;
return NULL;
}
(void)mutex_lock(&main_arena.mutex);
- oldp = mem2chunk_check(oldmem, &magic_p);
+ const mchunkptr oldp = mem2chunk_check(oldmem, &magic_p);
(void)mutex_unlock(&main_arena.mutex);
if(!oldp) {
malloc_printerr(check_action, "realloc(): invalid pointer", oldmem);
return malloc_check(bytes, NULL);
}
- oldsize = chunksize(oldp);
+ const INTERNAL_SIZE_T oldsize = chunksize(oldp);
checked_request2size(bytes+1, nb);
(void)mutex_lock(&main_arena.mutex);
} else {
#endif /* HAVE_MMAP */
if (top_check() >= 0)
- newmem = _int_realloc(&main_arena, oldmem, bytes+1);
+ newmem = _int_realloc(&main_arena, oldp, bytes+1);
#if 0 /* Erase freed memory. */
if(newmem)
newp = mem2chunk(newmem);
return;
}
#endif
- _int_free(&main_arena, mem);
+ _int_free(&main_arena, p);
}
# endif /* !defiend NO_STARTER */
#if __STD_C
-Void_t* _int_malloc(mstate, size_t);
-void _int_free(mstate, Void_t*);
-Void_t* _int_realloc(mstate, Void_t*, size_t);
-Void_t* _int_memalign(mstate, size_t, size_t);
-Void_t* _int_valloc(mstate, size_t);
+static Void_t* _int_malloc(mstate, size_t);
+static void _int_free(mstate, mchunkptr);
+static Void_t* _int_realloc(mstate, mchunkptr, size_t);
+static Void_t* _int_memalign(mstate, size_t, size_t);
+static Void_t* _int_valloc(mstate, size_t);
static Void_t* _int_pvalloc(mstate, size_t);
/*static Void_t* cALLOc(size_t, size_t);*/
#ifndef _LIBC
#else
-Void_t* _int_malloc();
-void _int_free();
-Void_t* _int_realloc();
-Void_t* _int_memalign();
-Void_t* _int_valloc();
-Void_t* _int_pvalloc();
+static Void_t* _int_malloc();
+static void _int_free();
+static Void_t* _int_realloc();
+static Void_t* _int_memalign();
+static Void_t* _int_valloc();
+static Void_t* _int_pvalloc();
/*static Void_t* cALLOc();*/
static Void_t** _int_icalloc();
static Void_t** _int_icomalloc();
set_head(chunk_at_offset(old_top, old_size), (2*SIZE_SZ)|PREV_INUSE);
set_foot(chunk_at_offset(old_top, old_size), (2*SIZE_SZ));
set_head(old_top, old_size|PREV_INUSE|NON_MAIN_ARENA);
- _int_free(av, chunk2mem(old_top));
+ _int_free(av, old_top);
} else {
set_head(old_top, (old_size + 2*SIZE_SZ)|PREV_INUSE);
set_foot(old_top, (old_size + 2*SIZE_SZ));
/* If possible, release the rest. */
if (old_size >= MINSIZE) {
- _int_free(av, chunk2mem(old_top));
+ _int_free(av, old_top);
}
}
#else
(void)mutex_lock(&ar_ptr->mutex);
#endif
- _int_free(ar_ptr, mem);
+ _int_free(ar_ptr, p);
(void)mutex_unlock(&ar_ptr->mutex);
}
#ifdef libc_hidden_def
mstate ar_ptr;
INTERNAL_SIZE_T nb; /* padded request size */
- mchunkptr oldp; /* chunk corresponding to oldmem */
- INTERNAL_SIZE_T oldsize; /* its size */
-
Void_t* newp; /* chunk to return */
__malloc_ptr_t (*hook) (__malloc_ptr_t, size_t, __const __malloc_ptr_t) =
/* realloc of null is supposed to be same as malloc */
if (oldmem == 0) return public_mALLOc(bytes);
- oldp = mem2chunk(oldmem);
- oldsize = chunksize(oldp);
+ /* chunk corresponding to oldmem */
+ const mchunkptr oldp = mem2chunk(oldmem);
+ /* its size */
+ const INTERNAL_SIZE_T oldsize = chunksize(oldp);
/* Little security check which won't hurt performance: the
allocator never wrapps around at the end of the address space.
tsd_setspecific(arena_key, (Void_t *)ar_ptr);
#endif
- newp = _int_realloc(ar_ptr, oldmem, bytes);
+ newp = _int_realloc(ar_ptr, oldp, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
assert(!newp || chunk_is_mmapped(mem2chunk(newp)) ||
#else
(void)mutex_lock(&ar_ptr->mutex);
#endif
- _int_free(ar_ptr, oldmem);
+ _int_free(ar_ptr, oldp);
(void)mutex_unlock(&ar_ptr->mutex);
}
}
------------------------------ malloc ------------------------------
*/
-Void_t*
+static Void_t*
_int_malloc(mstate av, size_t bytes)
{
INTERNAL_SIZE_T nb; /* normalized request size */
------------------------------ free ------------------------------
*/
-void
-_int_free(mstate av, Void_t* mem)
+static void
+_int_free(mstate av, mchunkptr p)
{
- mchunkptr p; /* chunk corresponding to mem */
INTERNAL_SIZE_T size; /* its size */
mfastbinptr* fb; /* associated fastbin */
mchunkptr nextchunk; /* next contiguous chunk */
const char *errstr = NULL;
- p = mem2chunk(mem);
size = chunksize(p);
/* Little security check which won't hurt performance: the
{
errstr = "free(): invalid pointer";
errout:
- malloc_printerr (check_action, errstr, mem);
+ malloc_printerr (check_action, errstr, chunk2mem(p));
return;
}
/* We know that each chunk is at least MINSIZE bytes in size. */
}
if (__builtin_expect (perturb_byte, 0))
- free_perturb (mem, size - SIZE_SZ);
+ free_perturb (chunk2mem(p), size - SIZE_SZ);
p->fd = *fb;
*fb = p;
}
if (__builtin_expect (perturb_byte, 0))
- free_perturb (mem, size - SIZE_SZ);
+ free_perturb (chunk2mem(p), size - SIZE_SZ);
/* consolidate backward */
if (!prev_inuse(p)) {
*/
Void_t*
-_int_realloc(mstate av, Void_t* oldmem, size_t bytes)
+_int_realloc(mstate av, mchunkptr oldp, size_t bytes)
{
INTERNAL_SIZE_T nb; /* padded request size */
- mchunkptr oldp; /* chunk corresponding to oldmem */
- INTERNAL_SIZE_T oldsize; /* its size */
-
mchunkptr newp; /* chunk to return */
INTERNAL_SIZE_T newsize; /* its size */
Void_t* newmem; /* corresponding user mem */
checked_request2size(bytes, nb);
- oldp = mem2chunk(oldmem);
- oldsize = chunksize(oldp);
+ /* oldmem size */
+ const INTERNAL_SIZE_T oldsize = chunksize(oldp);
/* Simple tests for old block integrity. */
if (__builtin_expect (misaligned_chunk (oldp), 0))
{
errstr = "realloc(): invalid pointer";
errout:
- malloc_printerr (check_action, errstr, oldmem);
+ malloc_printerr (check_action, errstr, chunk2mem(oldp));
return NULL;
}
if (__builtin_expect (oldp->size <= 2 * SIZE_SZ, 0)
*/
copysize = oldsize - SIZE_SZ;
- s = (INTERNAL_SIZE_T*)(oldmem);
+ s = (INTERNAL_SIZE_T*)(chunk2mem(oldp));
d = (INTERNAL_SIZE_T*)(newmem);
ncopies = copysize / sizeof(INTERNAL_SIZE_T);
assert(ncopies >= 3);
}
}
- _int_free(av, oldmem);
+ _int_free(av, oldp);
check_inuse_chunk(av, newp);
return chunk2mem(newp);
}
(av != &main_arena ? NON_MAIN_ARENA : 0));
/* Mark remainder as inuse so free() won't complain */
set_inuse_bit_at_offset(remainder, remainder_size);
- _int_free(av, chunk2mem(remainder));
+ _int_free(av, remainder);
}
check_inuse_chunk(av, newp);
/* don't need to remap if still within same page */
if (oldsize == newsize - offset)
- return oldmem;
+ return chunk2mem(oldp);
cp = (char*)mremap((char*)oldp - offset, oldsize + offset, newsize, 1);
/* Note the extra SIZE_SZ overhead. */
if ((unsigned long)(oldsize) >= (unsigned long)(nb + SIZE_SZ))
- newmem = oldmem; /* do nothing */
+ newmem = chunk2mem(oldp); /* do nothing */
else {
/* Must alloc, copy, free. */
newmem = _int_malloc(av, nb - MALLOC_ALIGN_MASK);
if (newmem != 0) {
- MALLOC_COPY(newmem, oldmem, oldsize - 2*SIZE_SZ);
- _int_free(av, oldmem);
+ MALLOC_COPY(newmem, chunk2mem(oldp), oldsize - 2*SIZE_SZ);
+ _int_free(av, oldp);
}
}
return newmem;
------------------------------ memalign ------------------------------
*/
-Void_t*
+static Void_t*
_int_memalign(mstate av, size_t alignment, size_t bytes)
{
INTERNAL_SIZE_T nb; /* padded request size */
(av != &main_arena ? NON_MAIN_ARENA : 0));
set_inuse_bit_at_offset(newp, newsize);
set_head_size(p, leadsize | (av != &main_arena ? NON_MAIN_ARENA : 0));
- _int_free(av, chunk2mem(p));
+ _int_free(av, p);
p = newp;
assert (newsize >= nb &&
set_head(remainder, remainder_size | PREV_INUSE |
(av != &main_arena ? NON_MAIN_ARENA : 0));
set_head_size(p, nb);
- _int_free(av, chunk2mem(remainder));
+ _int_free(av, remainder);
}
}
------------------------------ valloc ------------------------------
*/
-Void_t*
+static Void_t*
#if __STD_C
_int_valloc(mstate av, size_t bytes)
#else
*/
-Void_t*
+static Void_t*
#if __STD_C
_int_pvalloc(mstate av, size_t bytes)
#else