ikarus/bin/ikarus.h

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#ifndef IKARUS_H
#define IKARUS_H
#include <stdio.h>
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#include <sys/resource.h>
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extern int total_allocated_pages;
extern int total_malloced;
extern int hash_table_count;
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#define cardsize 512
#define cards_per_page 8
#define most_bytes_in_minor 0x10000000
#define old_gen_mask 0x00000007
#define new_gen_mask 0x00000008
#define gen_mask 0x0000000F
#define new_gen_tag 0x00000008
#define meta_dirty_mask 0x000000F0
#define type_mask 0x00000F00
#define scannable_mask 0x0000F000
#define dealloc_mask 0x000F0000
#define large_object_mask 0x00100000
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#define meta_dirty_shift 4
#define hole_type 0x00000000
#define mainheap_type 0x00000100
#define mainstack_type 0x00000200
#define pointers_type 0x00000300
#define dat_type 0x00000400
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#define code_type 0x00000500
#define weak_pairs_type 0x00000600
#define symbols_type 0x00000700
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#define scannable_tag 0x00001000
#define unscannable_tag 0x00000000
#define dealloc_tag 0x00010000
#define retain_tag 0x00000000
#define large_object_tag 0x00100000
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#define hole_mt (hole_type | unscannable_tag | retain_tag)
#define mainheap_mt (mainheap_type | unscannable_tag | retain_tag)
#define mainstack_mt (mainstack_type | unscannable_tag | retain_tag)
#define pointers_mt (pointers_type | scannable_tag | dealloc_tag)
#define symbols_mt (symbols_type | scannable_tag | dealloc_tag)
#define data_mt (dat_type | unscannable_tag | dealloc_tag)
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#define code_mt (code_type | scannable_tag | dealloc_tag)
#define weak_pairs_mt (weak_pairs_type | scannable_tag | dealloc_tag)
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static int
inthash(int key) {
key += ~(key << 15);
key ^= (key >> 10);
key += (key << 3);
key ^= (key >> 6);
key += ~(key << 11);
key ^= (key >> 16);
return key;
return inthash(key);
}
#define wordsize 4
#define wordshift 2
#define pagesize 4096
#define generation_count 5 /* generations 0 (nursery), 1, 2, 3, 4 */
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typedef unsigned char* ikp;
void ik_error(ikp args);
typedef struct ikpage{
ikp base;
struct ikpage* next;
} ikpage;
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typedef struct ikpages{
ikp base;
int size;
struct ikpages* next;
} ikpages;
typedef struct ikdl{ /* double-link */
struct ikdl* prev;
struct ikdl* next;
} ikdl;
typedef struct ik_guardian_pair{
ikp tc;
ikp obj;
} ik_guardian_pair;
#define ik_guardian_table_size \
((pagesize - sizeof(int) - sizeof(struct ik_guardian_table*))/sizeof(ik_guardian_pair))
typedef struct ik_guardian_table{
int count;
struct ik_guardian_table* next;
ik_guardian_pair p[ik_guardian_table_size];
} ik_guardian_table;
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typedef struct ikpcb{
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/* the first locations may be accessed by some */
/* compiled code to perform overflow/underflow ops */
ikp allocation_pointer; /* offset = 0 */
ikp allocation_redline; /* offset = 4 */
ikp frame_pointer; /* offset = 8 */
ikp frame_base; /* offset = 12 */
ikp frame_redline; /* offset = 16 */
ikp next_k; /* offset = 20 */
void* system_stack; /* offset = 24 */
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unsigned int* dirty_vector; /* offset = 28 */
ikp arg_list; /* offset = 32 */
int engine_counter; /* offset = 36 */
int interrupted; /* offset = 40 */
ikp base_rtd; /* offset = 44 */
ikp collect_key; /* offset = 48 */
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/* the rest are not used by any scheme code */
/* they only support the runtime system (gc, etc.) */
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unsigned int* segment_vector;
ikp weak_pairs_ap;
ikp weak_pairs_ep;
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ikp heap_base;
int heap_size;
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ikpages* heap_pages;
ikpage* cached_pages; /* pages cached so that we don't map/unmap */
ikpage* uncached_pages; /* ikpages cached so that we don't malloc/free */
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ikp stack_base;
int stack_size;
ikp symbol_table;
ikp gensym_table;
ik_guardian_table* guardians[generation_count];
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unsigned int* dirty_vector_base;
unsigned int* segment_vector_base;
unsigned char* memory_base;
unsigned char* memory_end;
int collection_id;
int allocation_count_minor;
int allocation_count_major;
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struct timeval collect_utime;
struct timeval collect_stime;
struct timeval collect_rtime;
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} ikpcb;
void* ik_malloc(int);
void ik_free(void*, int);
void* ik_mmap(int);
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void* ik_mmap_typed(int size, unsigned int type, ikpcb*);
void* ik_mmap_ptr(int size, int gen, ikpcb*);
void* ik_mmap_data(int size, int gen, ikpcb*);
void* ik_mmap_code(int size, int gen, ikpcb*);
void* ik_mmap_mixed(int size, ikpcb*);
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void ik_munmap(void*, int);
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void ik_munmap_from_segment(unsigned char*, int, ikpcb*);
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ikpcb* ik_make_pcb();
void ik_delete_pcb(ikpcb*);
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void ik_free_symbol_table(ikpcb* pcb);
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void ik_fasl_load(ikpcb* pcb, char* filename);
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void ik_relocate_code(ikp);
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ikp ik_exec_code(ikpcb* pcb, ikp code_ptr);
void ik_print(ikp x);
void ik_fprint(FILE*, ikp x);
ikp ikrt_string_to_symbol(ikp, ikpcb*);
ikp ikrt_strings_to_gensym(ikp, ikp, ikpcb*);
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ikp ik_cstring_to_symbol(char*, ikpcb*);
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ikp ik_asm_enter(ikpcb*, ikp code_object, ikp arg);
ikp ik_asm_reenter(ikpcb*, ikp code_object, ikp val);
ikp ik_underflow_handler(ikpcb*);
ikp ik_alloc(ikpcb* pcb, int size);
#include "ikarus-data.h"
#define ik_eof_p(x) ((x) == ik_eof_object)
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#define page_index(x) (((unsigned int)(x)) >> pageshift)
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#endif