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midl.h
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1 
11 /* $OpenLDAP$ */
12 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
13  *
14  * Copyright 2000-2018 The OpenLDAP Foundation.
15  * Portions Copyright 2001-2018 Howard Chu, Symas Corp.
16  * All rights reserved.
17  *
18  * Redistribution and use in source and binary forms, with or without
19  * modification, are permitted only as authorized by the OpenLDAP
20  * Public License.
21  *
22  * A copy of this license is available in the file LICENSE in the
23  * top-level directory of the distribution or, alternatively, at
24  * <http://www.OpenLDAP.org/license.html>.
25  */
26 
27 #ifndef _MDB_MIDL_H_
28 #define _MDB_MIDL_H_
29 
30 #include <stddef.h>
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
46 typedef size_t MDB_ID;
47 
54 typedef MDB_ID *MDB_IDL;
55 
56 /* IDL sizes - likely should be even bigger
57  * limiting factors: sizeof(ID), thread stack size
58  */
59 #define MDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
60 #define MDB_IDL_DB_SIZE (1<<MDB_IDL_LOGN)
61 #define MDB_IDL_UM_SIZE (1<<(MDB_IDL_LOGN+1))
62 
63 #define MDB_IDL_DB_MAX (MDB_IDL_DB_SIZE-1)
64 #define MDB_IDL_UM_MAX (MDB_IDL_UM_SIZE-1)
65 
66 #define MDB_IDL_SIZEOF(ids) (((ids)[0]+1) * sizeof(MDB_ID))
67 #define MDB_IDL_IS_ZERO(ids) ( (ids)[0] == 0 )
68 #define MDB_IDL_CPY( dst, src ) (memcpy( dst, src, MDB_IDL_SIZEOF( src ) ))
69 #define MDB_IDL_FIRST( ids ) ( (ids)[1] )
70 #define MDB_IDL_LAST( ids ) ( (ids)[(ids)[0]] )
71 
73 #define MDB_IDL_ALLOCLEN( ids ) ( (ids)[-1] )
74 
76 #define mdb_midl_xappend(idl, id) do { \
77  MDB_ID *xidl = (idl), xlen = ++(xidl[0]); \
78  xidl[xlen] = (id); \
79  } while (0)
80 
86 unsigned mdb_midl_search( MDB_IDL ids, MDB_ID id );
87 
92 MDB_IDL mdb_midl_alloc(int num);
93 
97 void mdb_midl_free(MDB_IDL ids);
98 
103 void mdb_midl_shrink(MDB_IDL *idp);
104 
110 int mdb_midl_need(MDB_IDL *idp, unsigned num);
111 
117 int mdb_midl_append( MDB_IDL *idp, MDB_ID id );
118 
124 int mdb_midl_append_list( MDB_IDL *idp, MDB_IDL app );
125 
132 int mdb_midl_append_range( MDB_IDL *idp, MDB_ID id, unsigned n );
133 
138 void mdb_midl_xmerge( MDB_IDL idl, MDB_IDL merge );
139 
143 void mdb_midl_sort( MDB_IDL ids );
144 
147 typedef struct MDB_ID2 {
148  MDB_ID mid;
149  void *mptr;
150 } MDB_ID2;
151 
157 typedef MDB_ID2 *MDB_ID2L;
158 
164 unsigned mdb_mid2l_search( MDB_ID2L ids, MDB_ID id );
165 
166 
172 int mdb_mid2l_insert( MDB_ID2L ids, MDB_ID2 *id );
173 
179 int mdb_mid2l_append( MDB_ID2L ids, MDB_ID2 *id );
180 
183 #ifdef __cplusplus
184 }
185 #endif
186 #endif /* _MDB_MIDL_H_ */
MDB_ID2 * MDB_ID2L
Definition: midl.h:157
void mdb_midl_shrink(MDB_IDL *idp)
Definition: midl.c:120
void * mptr
Definition: midl.h:149
size_t MDB_ID
Definition: midl.h:46
int mdb_mid2l_append(MDB_ID2L ids, MDB_ID2 *id)
Definition: midl.c:347
void mdb_midl_xmerge(MDB_IDL idl, MDB_IDL merge)
Definition: midl.c:201
unsigned mdb_midl_search(MDB_IDL ids, MDB_ID id)
Definition: midl.c:34
Definition: midl.h:147
int mdb_midl_append_list(MDB_IDL *idp, MDB_IDL app)
Definition: midl.c:171
unsigned mdb_mid2l_search(MDB_ID2L ids, MDB_ID id)
Definition: midl.c:281
int mdb_mid2l_insert(MDB_ID2L ids, MDB_ID2 *id)
Definition: midl.c:316
MDB_IDL mdb_midl_alloc(int num)
Definition: midl.c:104
MDB_ID mid
Definition: midl.h:148
MDB_ID * MDB_IDL
Definition: midl.h:54
void mdb_midl_free(MDB_IDL ids)
Definition: midl.c:114
int mdb_midl_append_range(MDB_IDL *idp, MDB_ID id, unsigned n)
Definition: midl.c:185
void mdb_midl_sort(MDB_IDL ids)
Definition: midl.c:221
int mdb_midl_need(MDB_IDL *idp, unsigned num)
Definition: midl.c:143
int mdb_midl_append(MDB_IDL *idp, MDB_ID id)
Definition: midl.c:157