-/*
- (c) FSF 2002.
-*/
-
-
-#ifndef PRIVATE_GC
-#define PRIVATE_GC
-
-#include "_scm.h"
-
-/* {heap tuning parameters}
- *
- * These are parameters for controlling memory allocation. The heap
- * is the area out of which scm_cons, and object headers are allocated.
- *
- * 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_INIT_HEAP_SIZE is the initial size of heap. If this much heap is
- * allocated initially the heap will grow by half its current size
- * each subsequent time more heap is needed.
- *
- * If SCM_INIT_HEAP_SIZE heap cannot be allocated initially, SCM_HEAP_SEG_SIZE
- * will be used, and the heap will grow by SCM_HEAP_SEG_SIZE when more
- * heap is needed. SCM_HEAP_SEG_SIZE must fit into type size_t. This code
- * is in scm_init_storage() and alloc_some_heap() in sys.c
- *
- * If SCM_INIT_HEAP_SIZE can be allocated initially, the heap will grow by
- * SCM_EXPHEAP(scm_heap_size) when more heap is needed.
- *
- * 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
-
-/* 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);
-
-
-typedef enum { return_on_error, abort_on_error } policy_on_error;
-
-
-#define SCM_MAX(A, B) ((A) > (B) ? (A) : (B))
-#define SCM_MIN(A, B) ((A) < (B) ? (A) : (B))
-
-/* CELL_P checks a random word whether it has the right form for a
- pointer to a cell. Use scm_i_find_heap_segment_containing_object
- to find out whether it actually points to a real cell.
-
- The right form for a cell pointer is this: the low three bits must
- be scm_tc3_cons, and when the scm_tc3_cons tag is stripped, the
- resulting pointer must be correctly aligned.
- scm_i_initialize_heap_segment_data guarantees that the test below
- works.
-*/
-#define CELL_P(x) ((SCM_UNPACK(x) & (sizeof(scm_t_cell)-1)) == scm_tc3_cons)
-
-/*
- gc-mark
- */
-
-
-void scm_mark_all (void);
-
-
-char const *scm_i_tag_name (scm_t_bits tag); /* MOVEME */
-
-
-extern long int scm_i_deprecated_memory_return;
-
-
-/*
- 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
+/*
+ * private-gc.h - private declarations for garbage collection.
+ *
+ * Copyright (C) 2002, 03, 04, 05, 06, 07, 08, 09 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
+ */
+
+#ifndef SCM_PRIVATE_GC
+#define SCM_PRIVATE_GC
+
+#include "_scm.h"
+
+/* {heap tuning parameters}
+ *
+ * These are parameters for controlling memory allocation. The heap
+ * is the area out of which scm_cons, and object headers are allocated.
+ *
+ * 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.
+ */
+
+
+#define SCM_DEFAULT_INIT_HEAP_SIZE_2 32*1024
+
+#define SCM_DOUBLECELL_ALIGNED_P(x) (((2 * sizeof (scm_t_cell) - 1) & SCM_UNPACK (x)) == 0)
+
+
+SCM_INTERNAL int scm_getenv_int (const char *var, int def);
+
+
+typedef enum { return_on_error, abort_on_error } policy_on_error;
+
+
+#define SCM_MAX(A, B) ((A) > (B) ? (A) : (B))
+#define SCM_MIN(A, B) ((A) < (B) ? (A) : (B))
+
+/* CELL_P checks a random word whether it has the right form for a
+ pointer to a cell. Use scm_i_find_heap_segment_containing_object
+ to find out whether it actually points to a real cell.
+
+ The right form for a cell pointer is this: the low three bits must
+ be scm_tc3_cons, and when the scm_tc3_cons tag is stripped, the
+ resulting pointer must be correctly aligned.
+ scm_i_initialize_heap_segment_data guarantees that the test below
+ works.
+*/
+#define CELL_P(x) ((SCM_UNPACK(x) & (sizeof(scm_t_cell)-1)) == scm_tc3_cons)
+
+SCM_INTERNAL char const *scm_i_tag_name (scm_t_bits tag); /* MOVEME */
+
+#endif
HCoop / bpt / guile.git / blobdiff