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Remove deprecated variables/macros from the GC headers.

Browse source 
* libguile/deprecated.c (scm_mtrigger, scm_mallocated,
  scm_max_segment_size): New global variables, from gc.c.
  (scm_map_free_list,
  scm_gc_set_debug_check_freelist_x)[GUILE_DEBUG_FREELIST]: New stubs.

* libguile/deprecated.h (scm_mallocated, scm_mtrigger,
  scm_max_segment_size): New declarations.
  (scm_map_free_list,
  scm_gc_set_debug_check_freelist_x)[GUILE_DEBUG_FREELIST]: New
  declarations.

* libguile/gc-malloc.c (scm_i_minyield_malloc): Remove.
  (scm_gc_init_malloc): Remove references to `scm_i_minyield_malloc' and
  `scm_mtrigger'.

* libguile/gc.c (scm_mtrigger, scm_mallocated): Remove.
  (scm_init_storage): Remove reference to `SCM_HEAP_SEG_SIZE'.

* libguile/gc.h (scm_max_segment_size, SCM_SET_FREELIST_LOC,
  SCM_FREELIST_LOC, scm_i_master_freelist, scm_i_master_freelist2,
  scm_mallocated, scm_mtrigger): Remove.
  (scm_map_free_list,
  scm_gc_set_debug_check_freelist_x)[SCM_ENABLE_DEPRECATED &&
  GUILE_DEBUG_FREELIST]: Remove.

* libguile/private-gc.h (SCM_DEFAULT_INIT_HEAP_SIZE_1,
  SCM_DEFAULT_MIN_YIELD_1, SCM_DEFAULT_MIN_YIELD_2,
  DEFAULT_SWEEP_AMOUNT, SCM_DEFAULT_MAX_SEGMENT_SIZE,
  SCM_MIN_HEAP_SEG_SIZE, SCM_HEAP_SEG_SIZE,
  SCM_GC_CARD_BVEC_SIZE_IN_LONGS, SCM_GC_IN_CARD_HEADERP): Remove.
  (scm_getenv_int): Made internal.
  (scm_i_marking, scm_mark_all, scm_i_deprecated_memory_return,
  scm_i_find_heap_calls, scm_gc_init_malloc, scm_gc_init_freelist,
  scm_gc_init_segments, scm_gc_init_mark): Remove declarations.

* libguile/gc-segment-table.c: Remove, finally.
This commit is contained in:
Ludovic Courtès 2009-08-28 20:25:49 +02:00
parent 7af531508c
commit 760fb97d1f
7 changed files with 46 additions and 417 deletions
Download patch file Download diff file Expand all files Collapse all files

25
libguile/deprecated.c
View file

@ -2,7 +2,7 @@
deprecate something, move it here when that is feasible.
*/
/* Copyright (C) 2003, 2004, 2006, 2008 Free Software Foundation, Inc.
/* Copyright (C) 2003, 2004, 2006, 2008, 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
@ -1503,6 +1503,29 @@ SCM_DEFINE (scm_destroy_guardian_x, "destroy-guardian!", 1, 0, 0,
}
#undef FUNC_NAME
/* GC-related things. */
unsigned long scm_mallocated, scm_mtrigger;
size_t scm_max_segment_size;
#if defined (GUILE_DEBUG) || defined (GUILE_DEBUG_FREELIST)
SCM
scm_map_free_list (void)
{
return SCM_EOL;
}
#endif
#if defined (GUILE_DEBUG_FREELIST)
SCM
scm_gc_set_debug_check_freelist_x (SCM flag)
{
return SCM_UNSPECIFIED;
}
#endif
void
scm_i_init_deprecated ()
{

19
libguile/deprecated.h
View file

@ -583,6 +583,25 @@ SCM_API SCM scm_destroy_guardian_x (SCM guardian);
SCM_API SCM scm_guardian_greedy_p (SCM guardian);
SCM_API SCM scm_guardian_destroyed_p (SCM guardian);
/* GC-related things deprecated with the move to BDW-GC starting from 1.9.3
(2009-09-15). */
SCM_API unsigned long scm_mallocated;
SCM_API unsigned long scm_mtrigger;
SCM_API size_t scm_max_segment_size;
#if defined (GUILE_DEBUG) || defined (GUILE_DEBUG_FREELIST)
SCM_API SCM scm_map_free_list (void);
#endif
#if defined (GUILE_DEBUG_FREELIST)
SCM_API SCM scm_gc_set_debug_check_freelist_x (SCM flag);
#endif
void scm_i_init_deprecated (void);
#endif

21
libguile/gc-malloc.c
View file

@ -78,27 +78,6 @@ extern unsigned long * __libc_ia64_register_backing_store_base;
/* #define DEBUGINFO */
static int scm_i_minyield_malloc;
void
scm_gc_init_malloc (void)
{
int mtrigger = scm_getenv_int ("GUILE_INIT_MALLOC_LIMIT",
SCM_DEFAULT_INIT_MALLOC_LIMIT);
scm_i_minyield_malloc = scm_getenv_int ("GUILE_MIN_YIELD_MALLOC",
SCM_DEFAULT_MALLOC_MINYIELD);
if (scm_i_minyield_malloc >= 100)
scm_i_minyield_malloc = 99;
if (scm_i_minyield_malloc < 1)
scm_i_minyield_malloc = 1;
if (mtrigger < 0)
scm_mtrigger = SCM_DEFAULT_INIT_MALLOC_LIMIT;
else
scm_mtrigger = mtrigger;
}
/* Function for non-cell memory management.

300
libguile/gc-segment-table.c
View file

@ -1,300 +0,0 @@
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2006, 2008 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 3 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
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "libguile/_scm.h"
#include "libguile/pairs.h"
#include "libguile/gc.h"
#include "libguile/private-gc.h"
/*
Heap segment table.
The table is sorted by the address of the data itself. This makes
for easy lookups. This is not portable: according to ANSI C,
pointers can only be compared within the same object (i.e. the same
block of malloced memory.). For machines with weird architectures,
this should be revised.
(Apparently, for this reason 1.6 and earlier had macros for pointer
comparison. )
perhaps it is worthwhile to remove the 2nd level of indirection in
the table, but this certainly makes for cleaner code.
*/
scm_t_heap_segment **scm_i_heap_segment_table;
size_t scm_i_heap_segment_table_size;
static scm_t_cell *lowest_cell;
static scm_t_cell *highest_cell;
/*
RETURN: index of inserted segment.
*/
int
scm_i_insert_segment (scm_t_heap_segment *seg)
{
size_t size = (scm_i_heap_segment_table_size + 1) * sizeof (scm_t_heap_segment *);
SCM_SYSCALL (scm_i_heap_segment_table
= ((scm_t_heap_segment **)
realloc ((char *)scm_i_heap_segment_table, size)));
/*
We can't alloc 4 more bytes. This is hopeless.
*/
if (!scm_i_heap_segment_table)
{
fprintf (stderr, "scm_i_get_new_heap_segment: Could not grow heap segment table.\n");
abort ();
}
if (!lowest_cell)
{
lowest_cell = seg->bounds[0];
highest_cell = seg->bounds[1];
}
else
{
lowest_cell = SCM_MIN (lowest_cell, seg->bounds[0]);
highest_cell = SCM_MAX (highest_cell, seg->bounds[1]);
}
{
int i = 0;
int j = 0;
while (i < scm_i_heap_segment_table_size
&& scm_i_heap_segment_table[i]->bounds[0] <= seg->bounds[0])
i++;
/*
We insert a new entry; if that happens to be before the
"current" segment of a freelist, we must move the freelist index
as well.
*/
if (scm_i_master_freelist.heap_segment_idx >= i)
scm_i_master_freelist.heap_segment_idx ++;
if (scm_i_master_freelist2.heap_segment_idx >= i)
scm_i_master_freelist2.heap_segment_idx ++;
for (j = scm_i_heap_segment_table_size; j > i; --j)
scm_i_heap_segment_table[j] = scm_i_heap_segment_table[j - 1];
scm_i_heap_segment_table[i] = seg;
scm_i_heap_segment_table_size ++;
return i;
}
}
/*
Determine whether the given value does actually represent a cell in
some heap segment. If this is the case, the number of the heap
segment is returned. Otherwise, -1 is returned. Binary search is
used to determine the heap segment that contains the cell.
I think this function is too long to be inlined. --hwn
*/
int
scm_i_find_heap_segment_containing_object (SCM obj)
{
if (!CELL_P (obj))
return -1;
scm_i_find_heap_calls ++;
if ((scm_t_cell *) obj < lowest_cell || (scm_t_cell *) obj >= highest_cell)
return -1;
{
scm_t_cell *ptr = SCM2PTR (obj);
unsigned int i = 0;
unsigned int j = scm_i_heap_segment_table_size - 1;
if (ptr < scm_i_heap_segment_table[i]->bounds[0])
return -1;
else if (scm_i_heap_segment_table[j]->bounds[1] <= ptr)
return -1;
else
{
while (i < j)
{
if (ptr < scm_i_heap_segment_table[i]->bounds[1])
{
break;
}
else if (scm_i_heap_segment_table[j]->bounds[0] <= ptr)
{
i = j;
break;
}
else
{
unsigned long int k = (i + j) / 2;
if (k == i)
return -1;
else if (ptr < scm_i_heap_segment_table[k]->bounds[1])
{
j = k;
++i;
if (ptr < scm_i_heap_segment_table[i]->bounds[0])
return -1;
}
else if (scm_i_heap_segment_table[k]->bounds[0] <= ptr)
{
i = k;
--j;
if (scm_i_heap_segment_table[j]->bounds[1] <= ptr)
return -1;
}
}
}
if (!SCM_DOUBLECELL_ALIGNED_P (obj) && scm_i_heap_segment_table[i]->span == 2)
return -1;
else if (SCM_GC_IN_CARD_HEADERP (ptr))
return -1;
else
return i;
}
}
}
int
scm_i_marked_count (void)
{
int i = 0;
int c = 0;
for (; i < scm_i_heap_segment_table_size; i++)
{
c += scm_i_heap_segment_marked_count (scm_i_heap_segment_table[i]);
}
return c;
}
SCM
scm_i_sweep_some_segments (scm_t_cell_type_statistics *freelist,
scm_t_sweep_statistics *sweep_stats)
{
int i = freelist->heap_segment_idx;
SCM collected = SCM_EOL;
if (i == -1) /* huh? --hwn */
i++;
for (;
i < scm_i_heap_segment_table_size; i++)
{
if (scm_i_heap_segment_table[i]->freelist != freelist)
continue;
collected = scm_i_sweep_some_cards (scm_i_heap_segment_table[i],
sweep_stats,
DEFAULT_SWEEP_AMOUNT);
if (collected != SCM_EOL) /* Don't increment i */
break;
}
freelist->heap_segment_idx = i;
return collected;
}
void
scm_i_reset_segments (void)
{
int i = 0;
for (; i < scm_i_heap_segment_table_size; i++)
{
scm_t_heap_segment *seg = scm_i_heap_segment_table[i];
seg->next_free_card = seg->bounds[0];
}
}
/*
Return a hashtab with counts of live objects, with tags as keys.
*/
SCM
scm_i_all_segments_statistics (SCM tab)
{
int i = 0;
for (; i < scm_i_heap_segment_table_size; i++)
{
scm_t_heap_segment *seg = scm_i_heap_segment_table[i];
scm_i_heap_segment_statistics (seg, tab);
}
return tab;
}
unsigned long*
scm_i_segment_table_info (int* size)
{
*size = scm_i_heap_segment_table_size;
unsigned long *bounds = malloc (sizeof (unsigned long) * *size * 2);
int i;
if (!bounds)
abort ();
for (i = *size; i-- > 0; )
{
bounds[2*i] = (unsigned long)scm_i_heap_segment_table[i]->bounds[0];
bounds[2*i+1] = (unsigned long)scm_i_heap_segment_table[i]->bounds[1];
}
return bounds;
}
void
scm_i_sweep_all_segments (char const *reason,
scm_t_sweep_statistics *sweep_stats)
{
unsigned i= 0;
for (i = 0; i < scm_i_heap_segment_table_size; i++)
{
scm_i_sweep_segment (scm_i_heap_segment_table[i], sweep_stats);
}
}
void
scm_i_clear_mark_space (void)
{
int i = 0;
for (; i < scm_i_heap_segment_table_size; i++)
{
scm_i_clear_segment_mark_space (scm_i_heap_segment_table[i]);
}
}

9
libguile/gc.c
View file

@ -208,17 +208,10 @@ scm_t_c_hook scm_after_sweep_c_hook;
scm_t_c_hook scm_after_gc_c_hook;
/* scm_mtrigger
* is the number of bytes of malloc allocation needed to trigger gc.
*/
unsigned long scm_mtrigger;
/* GC Statistics Keeping
*/
unsigned long scm_mallocated = 0;
unsigned long scm_gc_ports_collected = 0;
static unsigned long protected_obj_count = 0;
@ -673,8 +666,6 @@ scm_init_storage ()
while (j)
scm_sys_protects[--j] = SCM_BOOL_F;
j = SCM_HEAP_SEG_SIZE;
#if 0
/* We can't have a cleanup handler since we have no thread to run it
in. */

22
libguile/gc.h
View file

@ -152,17 +152,7 @@ SCM_API size_t scm_default_max_segment_size;
#define scm_default_max_segment_size deprecated
#endif
SCM_API size_t scm_max_segment_size;
#define SCM_SET_FREELIST_LOC(key,ptr) scm_i_pthread_setspecific ((key), (ptr))
#define SCM_FREELIST_LOC(key) ((SCM *) scm_i_pthread_getspecific (key))
SCM_API struct scm_t_cell_type_statistics scm_i_master_freelist;
SCM_API struct scm_t_cell_type_statistics scm_i_master_freelist2;
SCM_API unsigned long scm_mallocated;
SCM_API unsigned long scm_gc_ports_collected;
SCM_API unsigned long scm_mtrigger;
SCM_API SCM scm_after_gc_hook;
@ -172,18 +162,6 @@ SCM_API scm_t_c_hook scm_before_sweep_c_hook;
SCM_API scm_t_c_hook scm_after_sweep_c_hook;
SCM_API scm_t_c_hook scm_after_gc_c_hook;
#if defined (GUILE_DEBUG) || defined (GUILE_DEBUG_FREELIST)
#if (SCM_ENABLE_DEPRECATED == 1)
SCM scm_map_free_list (void);
#else
#define scm_map_free_list deprecated
#define scm_free_list_length deprecated
#endif
#endif
#if (SCM_ENABLE_DEPRECATED == 1) && defined (GUILE_DEBUG_FREELIST)
SCM_API SCM scm_gc_set_debug_check_freelist_x (SCM flag);
#endif
#if (SCM_DEBUG_CELL_ACCESSES == 1)

67
libguile/private-gc.h
View file

@ -19,8 +19,8 @@
* 02110-1301 USA
*/
#ifndef PRIVATE_GC
#define PRIVATE_GC
#ifndef SCM_PRIVATE_GC
#define SCM_PRIVATE_GC
#include "_scm.h"
@ -32,54 +32,15 @@
* Each heap cell is 8 bytes on a 32 bit machine and 16 bytes on a
* 64 bit machine. The units of the _SIZE parameters are bytes.
* Cons pairs and object headers occupy one heap cell.
*
* SCM_MIN_HEAP_SEG_SIZE is minimum size of heap to accept when more heap
* is needed.
*/
/*
* Heap size 45000 and 40% min yield gives quick startup and no extra
* heap allocation. Having higher values on min yield may lead to
* large heaps, especially if code behaviour is varying its
* maximum consumption between different freelists.
*/
/*
These values used to be global C variables. However, they're also
available through the environment, and having a double interface is
confusing. Now they're #defines --hwn.
*/
#define SCM_DEFAULT_INIT_HEAP_SIZE_1 256*1024
#define SCM_DEFAULT_MIN_YIELD_1 40
#define SCM_DEFAULT_INIT_HEAP_SIZE_2 32*1024
/*
How many cells to collect during one sweep call. This is the pool
size of each thread.
*/
#define DEFAULT_SWEEP_AMOUNT 512
/* The following value may seem large, but note that if we get to GC at
* all, this means that we have a numerically intensive application
*/
#define SCM_DEFAULT_MIN_YIELD_2 40
#define SCM_DEFAULT_MAX_SEGMENT_SIZE (20*1024*1024L)
#define SCM_MIN_HEAP_SEG_SIZE (8 * SCM_GC_SIZEOF_CARD)
#define SCM_HEAP_SEG_SIZE (16384L * sizeof (scm_t_cell))
#define SCM_DOUBLECELL_ALIGNED_P(x) (((2 * sizeof (scm_t_cell) - 1) & SCM_UNPACK (x)) == 0)
#define SCM_GC_CARD_BVEC_SIZE_IN_LONGS \
((SCM_GC_CARD_N_CELLS + SCM_C_BVEC_LONG_BITS - 1) / SCM_C_BVEC_LONG_BITS)
#define SCM_GC_IN_CARD_HEADERP(x) \
(scm_t_cell *) (x) < SCM_GC_CELL_CARD (x) + SCM_GC_CARD_N_HEADER_CELLS
int scm_getenv_int (const char *var, int def);
SCM_INTERNAL int scm_getenv_int (const char *var, int def);
typedef enum { return_on_error, abort_on_error } policy_on_error;
@ -100,28 +61,6 @@ typedef enum { return_on_error, abort_on_error } policy_on_error;
*/
#define CELL_P(x) ((SCM_UNPACK(x) & (sizeof(scm_t_cell)-1)) == scm_tc3_cons)
/*
gc-mark
*/
/* Non-zero while in the mark phase. */
SCM_INTERNAL int scm_i_marking;
SCM_INTERNAL void scm_mark_all (void);
extern long int scm_i_deprecated_memory_return;
extern long int scm_i_find_heap_calls;
SCM_INTERNAL char const *scm_i_tag_name (scm_t_bits tag); /* MOVEME */
/*
global init funcs.
*/
void scm_gc_init_malloc (void);
void scm_gc_init_freelist (void);
void scm_gc_init_segments (void);
void scm_gc_init_mark (void);
#endif