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Diffstat (limited to 'Source/DOH/dohint.h')
| -rw-r--r-- | Source/DOH/dohint.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/Source/DOH/dohint.h b/Source/DOH/dohint.h new file mode 100644 index 0000000..8f52d28 --- /dev/null +++ b/Source/DOH/dohint.h @@ -0,0 +1,133 @@ + +/* ----------------------------------------------------------------------------- + * dohint.h + * + * This file describes internally managed objects. + * + * Author(s) : David Beazley (beazley@cs.uchicago.edu) + * + * Copyright (C) 1999-2000. The University of Chicago + * See the file LICENSE for information on usage and redistribution. + * + * $Id: dohint.h 9607 2006-12-05 22:11:40Z beazley $ + * ----------------------------------------------------------------------------- */ + +#ifndef _DOHINT_H +#define _DOHINT_H + +#include "doh.h" + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <ctype.h> +#include <stdarg.h> + +/* Hash objects */ +typedef struct { + DOH *(*doh_getattr) (DOH *obj, DOH *name); /* Get attribute */ + int (*doh_setattr) (DOH *obj, DOH *name, DOH *value); /* Set attribute */ + int (*doh_delattr) (DOH *obj, DOH *name); /* Del attribute */ + DOH *(*doh_keys) (DOH *obj); /* All keys as a list */ +} DohHashMethods; + +/* List objects */ +typedef struct { + DOH *(*doh_getitem) (DOH *obj, int index); /* Get item */ + int (*doh_setitem) (DOH *obj, int index, DOH *value); /* Set item */ + int (*doh_delitem) (DOH *obj, int index); /* Delete item */ + int (*doh_insitem) (DOH *obj, int index, DOH *value); /* Insert item */ + int (*doh_delslice) (DOH *obj, int sindex, int eindex); /* Delete slice */ +} DohListMethods; + +/* File methods */ +typedef struct { + int (*doh_read) (DOH *obj, void *buffer, int nbytes); /* Read bytes */ + int (*doh_write) (DOH *obj, void *buffer, int nbytes); /* Write bytes */ + int (*doh_putc) (DOH *obj, int ch); /* Put character */ + int (*doh_getc) (DOH *obj); /* Get character */ + int (*doh_ungetc) (DOH *obj, int ch); /* Unget character */ + int (*doh_seek) (DOH *obj, long offset, int whence); /* Seek */ + long (*doh_tell) (DOH *obj); /* Tell */ + int (*doh_close) (DOH *obj); /* Close */ +} DohFileMethods; + +/* String methods */ +typedef struct { + int (*doh_replace) (DOH *obj, DOH *old, DOH *rep, int flags); + void (*doh_chop) (DOH *obj); +} DohStringMethods; + +/* ----------------------------------------------------------------------------- + * DohObjInfo + * ----------------------------------------------------------------------------- */ + +typedef struct DohObjInfo { + char *objname; /* Object name */ + + /* Basic object methods */ + void (*doh_del) (DOH *obj); /* Delete object */ + DOH *(*doh_copy) (DOH *obj); /* Copy and object */ + void (*doh_clear) (DOH *obj); /* Clear an object */ + + /* I/O methods */ + DOH *(*doh_str) (DOH *obj); /* Make a full string */ + void *(*doh_data) (DOH *obj); /* Return raw data */ + int (*doh_dump) (DOH *obj, DOH *out); /* Serialize on out */ + + /* Length and hash values */ + int (*doh_len) (DOH *obj); + int (*doh_hashval) (DOH *obj); + + /* Compare */ + int (*doh_cmp) (DOH *obj1, DOH *obj2); + + /* Equal */ + int (*doh_equal) (DOH *obj1, DOH *obj2); + + /* Iterators */ + DohIterator (*doh_first) (DOH *obj); + DohIterator (*doh_next) (DohIterator); + + /* Positional */ + void (*doh_setfile) (DOH *obj, DOHString_or_char *file); + DOH *(*doh_getfile) (DOH *obj); + void (*doh_setline) (DOH *obj, int line); + int (*doh_getline) (DOH *obj); + + DohHashMethods *doh_hash; /* Hash methods */ + DohListMethods *doh_list; /* List methods */ + DohFileMethods *doh_file; /* File methods */ + DohStringMethods *doh_string; /* String methods */ + void *doh_reserved; /* Reserved */ + void *clientdata; /* User data */ +} DohObjInfo; + +typedef struct { + void *data; /* Data pointer */ + DohObjInfo *type; + void *meta; /* Meta data */ + unsigned int flag_intern:1; /* Interned object */ + unsigned int flag_marked:1; /* Mark flag. Used to avoid recursive loops in places */ + unsigned int flag_user:1; /* User flag */ + unsigned int flag_usermark:1; /* User marked */ + unsigned int refcount:28; /* Reference count (max 16 million) */ +} DohBase; + +/* Macros for decrefing and increfing (safe for null objects). */ + +#define Decref(a) if (a) ((DohBase *) a)->refcount-- +#define Incref(a) if (a) ((DohBase *) a)->refcount++ +#define Refcount(a) ((DohBase *) a)->refcount + +/* Macros for manipulating objects in a safe manner */ +#define ObjData(a) ((DohBase *)a)->data +#define ObjSetMark(a,x) ((DohBase *)a)->flag_marked = x +#define ObjGetMark(a) ((DohBase *)a)->flag_marked +#define ObjType(a) ((DohBase *)a)->type + +extern DOH *DohObjMalloc(DohObjInfo *type, void *data); /* Allocate a DOH object */ +extern void DohObjFree(DOH *ptr); /* Free a DOH object */ + +#endif /* DOHINT_H */ |