/usr/include/ncarg/hlu/Callbacks.h is in libncarg-dev 6.2.0-3+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | /*
* $Id: Callbacks.h,v 1.4 1997-03-31 16:16:01 boote Exp $
*/
/************************************************************************
* *
* Copyright (C) 1996 *
* University Corporation for Atmospheric Research *
* All Rights Reserved *
* *
************************************************************************/
/*
* File: Callbacks.h
*
* Author: Jeff W. Boote
* National Center for Atmospheric Research
* PO 3000, Boulder, Colorado
*
* Date: Sat May 4 00:48:23 MDT 1996
*
* Description:
*/
#ifndef _NHL_CALLBACKS_H
#define _NHL_CALLBACKS_H
#include <ncarg/hlu/hlu.h>
/*
* Definition of the CB function type. The cbdata is data passed in by
* the _NhlCBCallCallbacks function. The udata is the "user" data passed
* in from the _NhlCBAdd function call. It is re-used, so it is important
* that the user realize that they can't free any data they pass into
* the _NhlCBAdd function as the "udata" until they remove the given
* CB.
*/
typedef void (*_NhlCBFunc)(
#if NhlNeedProto
NhlArgVal cbdata, /* data from_NhlCBCallCallbacks */
NhlArgVal udata /* user data from _NhlCBAdd */
#endif
);
/*
* This function is called by _NhlCBAdd to determine where the given
* CB function should be placed in the "hash" table. It is only used if
* this is a "hashing" CB list.
*/
typedef long (*_NhlCBAddHash)(
#if NhlNeedProto
NhlArgVal selector, /* from _NhlCBAdd - not saved */
NhlArgVal udata
#endif
);
/*
* This function is called by _NhlCBCallCallbacks to determine which
* CB's should be called.
*/
typedef long (*_NhlCBCallHash)(
#if NhlNeedProto
NhlArgVal selector, /* from _NhlCBCallCallbacks */
NhlArgVal cbdata
#endif
);
typedef enum __NhlCBTask {
_NhlcbADD,
_NhlcbDELETE,
_NhlcbCALL
} _NhlCBTask;
/*
* This function does private stuff appropriate to the particular
* callback during add, call, and delete
*/
typedef NhlErrorTypes (*_NhlCBTaskProc)(
#if NhlNeedProto
NhlPointer proc_data,
_NhlCBTask task,
NhlArgVal selector,
NhlBoolean *do_it,
NhlArgVal *cbdata,
NhlPointer *cbnode_data
#endif
);
typedef struct _NhlCBRec _NhlCBRec, *_NhlCB;
typedef struct _NhlCBListRec _NhlCBListRec, *_NhlCBList;
/*
* Create a callback list.
* A hash_mult of 0 indicates that all CB funcs should be called when
* _NhlCBCallCallbacks is called, and there is no reason to hash them.
* The hash table is 2^hash_mult in size.
* The valid values of hash_mult are >= 0 and <= 8.
* If add_hash is NULL, then the arg "selector" to _NhlCBAdd is treated
* as a "longval", and used as the hash value. call_hash works the
* same way, but from the _NhlCBCallCallbacks side. If hash_mult
* is 0, then add_hash and call_hash are ignored. Likewise, the "selector"
* arg to _NhlCBAdd and _NhlCBCallCallbacks is ignored.
*
* The "longval" used for the hash must be a positive integer (0 ok).
*/
extern _NhlCBList
_NhlCBCreate(
#if NhlNeedProto
int hash_mult,
_NhlCBAddHash add_hash,
_NhlCBCallHash call_hash,
_NhlCBTaskProc task_proc,
NhlPointer task_proc_data
#endif
);
extern void
_NhlCBDestroy(
#if NhlNeedProto
_NhlCBList cblist
#endif
);
/*
* Add a function to the callback list
*/
extern _NhlCB
_NhlCBAdd(
#if NhlNeedProto
_NhlCBList cblist,
NhlArgVal selector,
_NhlCBFunc cbfunc,
NhlArgVal udata
#endif
);
/*
* Remove a function from a callback list
*/
extern void
_NhlCBDelete(
#if NhlNeedProto
_NhlCB cb
#endif
);
/*
* execute the callback list.
*/
extern void
_NhlCBCallCallbacks(
#if NhlNeedProto
_NhlCBList cblist,
NhlArgVal selector,
NhlArgVal cbdata
#endif
);
extern void
_NhlCBIterate(
#if NhlNeedProto
_NhlCBList cblist,
_NhlCBTask task,
NhlArgVal cbdata
#endif
);
#endif /* _NHL_CALLBACKS_H */
|