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dvander@370
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1 |
/** |
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ds@653
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2 |
* vim: set ts=4 : |
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dvander@370
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3 |
* =============================================================== |
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dvander@370
|
4 |
* SourceMod (C)2004-2007 AlliedModders LLC. All rights reserved. |
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dvander@370
|
5 |
* =============================================================== |
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dvander@370
|
6 |
* |
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dvander@370
|
7 |
* This file is not open source and may not be copied without explicit |
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dvander@370
|
8 |
* written permission of AlliedModders LLC. This file may not be redistributed |
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dvander@370
|
9 |
* in whole or significant part. |
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dvander@370
|
10 |
* For information, see LICENSE.txt or http://www.sourcemod.net/license.php |
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dvander@370
|
11 |
* |
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dvander@370
|
12 |
* Version: $Id$ |
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dvander@370
|
13 |
*/ |
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dvander@370
|
14 |
|
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dvander@218
|
15 |
#include "HandleSys.h" |
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dvander@229
|
16 |
#include "ShareSys.h" |
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dvander@218
|
17 |
#include "PluginSys.h" |
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dvander@222
|
18 |
#include <assert.h> |
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dvander@351
|
19 |
#include <string.h> |
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dvander@218
|
20 |
|
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dvander@218
|
21 |
HandleSystem g_HandleSys; |
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dvander@218
|
22 |
|
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dvander@229
|
23 |
QHandle *ignore_handle; |
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dvander@229
|
24 |
|
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dvander@229
|
25 |
inline HandleType_t TypeParent(HandleType_t type) |
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dvander@229
|
26 |
{ |
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dvander@229
|
27 |
return (type & ~HANDLESYS_SUBTYPE_MASK); |
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dvander@229
|
28 |
} |
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dvander@229
|
29 |
|
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dvander@229
|
30 |
inline HandleError IdentityHandle(IdentityToken_t *token, unsigned int *index) |
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dvander@229
|
31 |
{ |
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dvander@262
|
32 |
return g_HandleSys.GetHandle(token->ident, g_ShareSys.GetIdentRoot(), &ignore_handle, index); |
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dvander@229
|
33 |
} |
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dvander@229
|
34 |
|
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dvander@218
|
35 |
HandleSystem::HandleSystem() |
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dvander@218
|
36 |
{ |
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dvander@218
|
37 |
m_Handles = new QHandle[HANDLESYS_MAX_HANDLES + 1]; |
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dvander@218
|
38 |
memset(m_Handles, 0, sizeof(QHandle) * (HANDLESYS_MAX_HANDLES + 1)); |
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dvander@218
|
39 |
|
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dvander@218
|
40 |
m_Types = new QHandleType[HANDLESYS_TYPEARRAY_SIZE]; |
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dvander@218
|
41 |
memset(m_Types, 0, sizeof(QHandleType) * HANDLESYS_TYPEARRAY_SIZE); |
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dvander@218
|
42 |
|
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dvander@218
|
43 |
m_TypeLookup = sm_trie_create(); |
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dvander@218
|
44 |
m_strtab = new BaseStringTable(512); |
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dvander@218
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45 |
|
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dvander@218
|
46 |
m_TypeTail = 0; |
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dvander@218
|
47 |
} |
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dvander@218
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48 |
|
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dvander@218
|
49 |
HandleSystem::~HandleSystem() |
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dvander@218
|
50 |
{ |
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dvander@218
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51 |
delete [] m_Handles; |
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dvander@218
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52 |
delete [] m_Types; |
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dvander@218
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53 |
sm_trie_destroy(m_TypeLookup); |
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dvander@218
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54 |
delete m_strtab; |
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dvander@218
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55 |
} |
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dvander@218
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56 |
|
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dvander@218
|
57 |
|
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dvander@262
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58 |
HandleType_t HandleSystem::CreateType(const char *name, |
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dvander@262
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59 |
IHandleTypeDispatch *dispatch, |
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dvander@262
|
60 |
HandleType_t parent, |
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dvander@262
|
61 |
const TypeAccess *typeAccess, |
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dvander@262
|
62 |
const HandleAccess *hndlAccess, |
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dvander@262
|
63 |
IdentityToken_t *ident, |
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dvander@262
|
64 |
HandleError *err) |
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dvander@218
|
65 |
{ |
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dvander@218
|
66 |
if (!dispatch) |
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dvander@218
|
67 |
{ |
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dvander@262
|
68 |
if (err) |
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dvander@262
|
69 |
{ |
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dvander@262
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70 |
*err = HandleError_Parameter; |
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dvander@262
|
71 |
} |
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dvander@262
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72 |
return 0; |
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dvander@262
|
73 |
} |
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dvander@262
|
74 |
|
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dvander@262
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75 |
if (typeAccess && typeAccess->hsVersion > SMINTERFACE_HANDLESYSTEM_VERSION) |
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dvander@262
|
76 |
{ |
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dvander@262
|
77 |
if (err) |
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dvander@262
|
78 |
{ |
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dvander@262
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79 |
*err = HandleError_Version; |
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dvander@262
|
80 |
} |
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dvander@262
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81 |
return 0; |
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dvander@262
|
82 |
} |
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dvander@262
|
83 |
|
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dvander@262
|
84 |
if (hndlAccess && hndlAccess->hsVersion > SMINTERFACE_HANDLESYSTEM_VERSION) |
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dvander@262
|
85 |
{ |
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dvander@262
|
86 |
if (err) |
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dvander@262
|
87 |
{ |
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dvander@262
|
88 |
*err = HandleError_Version; |
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dvander@262
|
89 |
} |
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dvander@218
|
90 |
return 0; |
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dvander@218
|
91 |
} |
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dvander@218
|
92 |
|
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dvander@218
|
93 |
bool isChild = false; |
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dvander@218
|
94 |
|
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dvander@218
|
95 |
if (parent != 0) |
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dvander@218
|
96 |
{ |
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dvander@218
|
97 |
isChild = true; |
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dvander@218
|
98 |
if (parent & HANDLESYS_SUBTYPE_MASK) |
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dvander@218
|
99 |
{ |
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dvander@262
|
100 |
if (err) |
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dvander@262
|
101 |
{ |
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dvander@262
|
102 |
*err = HandleError_NoInherit; |
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dvander@262
|
103 |
} |
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dvander@218
|
104 |
return 0; |
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dvander@218
|
105 |
} |
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dvander@218
|
106 |
if (parent >= HANDLESYS_TYPEARRAY_SIZE |
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dvander@262
|
107 |
|| m_Types[parent].dispatch == NULL) |
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dvander@218
|
108 |
{ |
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dvander@262
|
109 |
if (err) |
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dvander@262
|
110 |
{ |
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dvander@262
|
111 |
*err = HandleError_Parameter; |
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dvander@262
|
112 |
} |
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dvander@262
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113 |
return 0; |
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dvander@262
|
114 |
} |
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dvander@262
|
115 |
if (m_Types[parent].typeSec.access[HTypeAccess_Inherit] == false |
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dvander@262
|
116 |
&& (m_Types[parent].typeSec.ident != ident)) |
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dvander@262
|
117 |
{ |
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dvander@262
|
118 |
if (err) |
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dvander@262
|
119 |
{ |
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dvander@262
|
120 |
*err = HandleError_Access; |
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dvander@262
|
121 |
} |
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dvander@218
|
122 |
return 0; |
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dvander@218
|
123 |
} |
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dvander@218
|
124 |
} |
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dvander@218
|
125 |
|
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dvander@262
|
126 |
if (name && name[0] != '\0') |
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dvander@218
|
127 |
{ |
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dvander@262
|
128 |
if (sm_trie_retrieve(m_TypeLookup, name, NULL)) |
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dvander@218
|
129 |
{ |
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dvander@262
|
130 |
if (err) |
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dvander@262
|
131 |
{ |
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dvander@262
|
132 |
*err = HandleError_Parameter; |
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dvander@262
|
133 |
} |
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dvander@262
|
134 |
return 0; |
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dvander@218
|
135 |
} |
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dvander@218
|
136 |
} |
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dvander@218
|
137 |
|
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dvander@218
|
138 |
unsigned int index; |
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dvander@218
|
139 |
|
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dvander@218
|
140 |
if (isChild) |
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dvander@218
|
141 |
{ |
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dvander@218
|
142 |
QHandleType *pParent = &m_Types[parent]; |
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dvander@218
|
143 |
if (pParent->children >= HANDLESYS_MAX_SUBTYPES) |
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dvander@218
|
144 |
{ |
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dvander@262
|
145 |
if (err) |
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dvander@262
|
146 |
{ |
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dvander@262
|
147 |
*err = HandleError_Limit; |
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dvander@262
|
148 |
} |
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dvander@218
|
149 |
return 0; |
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dvander@218
|
150 |
} |
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dvander@218
|
151 |
index = 0; |
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dvander@218
|
152 |
for (unsigned int i=1; i<=HANDLESYS_MAX_SUBTYPES; i++) |
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dvander@218
|
153 |
{ |
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dvander@218
|
154 |
if (m_Types[parent + i].dispatch == NULL) |
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dvander@218
|
155 |
{ |
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dvander@218
|
156 |
index = parent + i; |
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dvander@218
|
157 |
break; |
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dvander@218
|
158 |
} |
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dvander@218
|
159 |
} |
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dvander@218
|
160 |
if (!index) |
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dvander@218
|
161 |
{ |
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dvander@262
|
162 |
if (err) |
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dvander@262
|
163 |
{ |
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dvander@262
|
164 |
*err = HandleError_Limit; |
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dvander@262
|
165 |
} |
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dvander@218
|
166 |
return 0; |
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dvander@218
|
167 |
} |
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dvander@218
|
168 |
pParent->children++; |
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dvander@218
|
169 |
} else { |
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dvander@218
|
170 |
if (m_FreeTypes == 0) |
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dvander@218
|
171 |
{ |
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dvander@218
|
172 |
/* Reserve another index */ |
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dvander@218
|
173 |
if (m_TypeTail >= HANDLESYS_TYPEARRAY_SIZE) |
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dvander@218
|
174 |
{ |
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dvander@262
|
175 |
if (err) |
|
dvander@262
|
176 |
{ |
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dvander@262
|
177 |
*err = HandleError_Limit; |
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dvander@262
|
178 |
} |
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dvander@218
|
179 |
return 0; |
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dvander@218
|
180 |
} else { |
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dvander@218
|
181 |
m_TypeTail += (HANDLESYS_MAX_SUBTYPES + 1); |
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dvander@218
|
182 |
index = m_TypeTail; |
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dvander@218
|
183 |
} |
|
dvander@218
|
184 |
} else { |
|
dvander@218
|
185 |
/* The "free array" is compacted into the normal array for easiness */ |
|
dvander@218
|
186 |
index = m_Types[m_FreeTypes--].freeID; |
|
dvander@218
|
187 |
} |
|
dvander@218
|
188 |
} |
|
dvander@218
|
189 |
|
|
dvander@218
|
190 |
QHandleType *pType = &m_Types[index]; |
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dvander@218
|
191 |
|
|
dvander@218
|
192 |
pType->dispatch = dispatch; |
|
dvander@218
|
193 |
if (name && name[0] != '\0') |
|
dvander@218
|
194 |
{ |
|
dvander@218
|
195 |
pType->nameIdx = m_strtab->AddString(name); |
|
dvander@218
|
196 |
sm_trie_insert(m_TypeLookup, name, (void *)pType); |
|
dvander@218
|
197 |
} else { |
|
dvander@218
|
198 |
pType->nameIdx = -1; |
|
dvander@218
|
199 |
} |
|
dvander@262
|
200 |
|
|
dvander@218
|
201 |
pType->opened = 0; |
|
dvander@218
|
202 |
|
|
dvander@262
|
203 |
if (typeAccess) |
|
dvander@262
|
204 |
{ |
|
dvander@262
|
205 |
pType->typeSec = *typeAccess; |
|
dvander@262
|
206 |
} else { |
|
dvander@262
|
207 |
InitAccessDefaults(&pType->typeSec, NULL); |
|
dvander@262
|
208 |
pType->typeSec.ident = ident; |
|
dvander@262
|
209 |
} |
|
dvander@262
|
210 |
|
|
dvander@262
|
211 |
if (hndlAccess) |
|
dvander@262
|
212 |
{ |
|
dvander@262
|
213 |
pType->hndlSec = *hndlAccess; |
|
dvander@262
|
214 |
} else { |
|
dvander@262
|
215 |
InitAccessDefaults(NULL, &pType->hndlSec); |
|
dvander@262
|
216 |
} |
|
dvander@262
|
217 |
|
|
dvander@218
|
218 |
if (!isChild) |
|
dvander@218
|
219 |
{ |
|
dvander@218
|
220 |
pType->children = 0; |
|
dvander@218
|
221 |
} |
|
dvander@218
|
222 |
|
|
dvander@218
|
223 |
return index; |
|
dvander@218
|
224 |
} |
|
dvander@218
|
225 |
|
|
dvander@218
|
226 |
bool HandleSystem::FindHandleType(const char *name, HandleType_t *type) |
|
dvander@218
|
227 |
{ |
|
dvander@218
|
228 |
QHandleType *_type; |
|
dvander@218
|
229 |
|
|
dvander@218
|
230 |
if (!sm_trie_retrieve(m_TypeLookup, name, (void **)&_type)) |
|
dvander@218
|
231 |
{ |
|
dvander@218
|
232 |
return false; |
|
dvander@218
|
233 |
} |
|
dvander@218
|
234 |
|
|
dvander@218
|
235 |
unsigned int offset = _type - m_Types; |
|
dvander@218
|
236 |
|
|
dvander@218
|
237 |
if (type) |
|
dvander@218
|
238 |
{ |
|
dvander@218
|
239 |
*type = offset; |
|
dvander@218
|
240 |
} |
|
dvander@218
|
241 |
|
|
dvander@218
|
242 |
return true; |
|
dvander@218
|
243 |
} |
|
dvander@218
|
244 |
|
|
dvander@222
|
245 |
HandleError HandleSystem::MakePrimHandle(HandleType_t type, |
|
dvander@222
|
246 |
QHandle **in_pHandle, |
|
dvander@222
|
247 |
unsigned int *in_index, |
|
dvander@229
|
248 |
Handle_t *in_handle, |
|
dvander@283
|
249 |
IdentityToken_t *owner, |
|
dvander@283
|
250 |
bool identity) |
|
dvander@222
|
251 |
{ |
|
dvander@229
|
252 |
unsigned int owner_index = 0; |
|
dvander@229
|
253 |
|
|
dvander@229
|
254 |
if (owner && (IdentityHandle(owner, &owner_index) != HandleError_None)) |
|
dvander@229
|
255 |
{ |
|
dvander@229
|
256 |
return HandleError_Identity; |
|
dvander@229
|
257 |
} |
|
dvander@229
|
258 |
|
|
dvander@222
|
259 |
unsigned int handle; |
|
dvander@222
|
260 |
if (m_FreeHandles == 0) |
|
dvander@222
|
261 |
{ |
|
dvander@222
|
262 |
if (m_HandleTail >= HANDLESYS_MAX_HANDLES) |
|
dvander@222
|
263 |
{ |
|
dvander@222
|
264 |
return HandleError_Limit;; |
|
dvander@222
|
265 |
} |
|
dvander@222
|
266 |
handle = ++m_HandleTail; |
|
dvander@222
|
267 |
} else { |
|
dvander@222
|
268 |
handle = m_Handles[m_FreeHandles--].freeID; |
|
dvander@222
|
269 |
} |
|
dvander@222
|
270 |
|
|
dvander@222
|
271 |
QHandle *pHandle = &m_Handles[handle]; |
|
dvander@222
|
272 |
|
|
dvander@222
|
273 |
assert(pHandle->set == false); |
|
dvander@222
|
274 |
|
|
dvander@222
|
275 |
if (++m_HSerial >= HANDLESYS_MAX_SERIALS) |
|
dvander@222
|
276 |
{ |
|
dvander@222
|
277 |
m_HSerial = 1; |
|
dvander@222
|
278 |
} |
|
dvander@222
|
279 |
|
|
dvander@222
|
280 |
/* Set essential information */ |
|
dvander@283
|
281 |
pHandle->set = identity ? HandleSet_Identity : HandleSet_Used; |
|
dvander@222
|
282 |
pHandle->refcount = 1; |
|
dvander@222
|
283 |
pHandle->type = type; |
|
dvander@222
|
284 |
pHandle->serial = m_HSerial; |
|
dvander@229
|
285 |
pHandle->owner = owner; |
|
dvander@229
|
286 |
pHandle->ch_next = 0; |
|
dvander@528
|
287 |
pHandle->access_special = false; |
|
dvander@789
|
288 |
pHandle->is_destroying = false; |
|
dvander@222
|
289 |
|
|
dvander@222
|
290 |
/* Create the hash value */ |
|
dvander@222
|
291 |
Handle_t hash = pHandle->serial; |
|
dvander@222
|
292 |
hash <<= 16; |
|
dvander@222
|
293 |
hash |= handle; |
|
dvander@222
|
294 |
|
|
dvander@222
|
295 |
/* Add a reference count to the type */ |
|
dvander@222
|
296 |
m_Types[type].opened++; |
|
dvander@222
|
297 |
|
|
dvander@222
|
298 |
/* Output */ |
|
dvander@222
|
299 |
*in_pHandle = pHandle; |
|
dvander@222
|
300 |
*in_index = handle; |
|
dvander@222
|
301 |
*in_handle = hash; |
|
dvander@222
|
302 |
|
|
dvander@283
|
303 |
/* Decode the identity token |
|
dvander@283
|
304 |
* For now, we don't allow nested ownership |
|
dvander@283
|
305 |
*/ |
|
dvander@283
|
306 |
if (owner && !identity) |
|
dvander@229
|
307 |
{ |
|
dvander@229
|
308 |
QHandle *pIdentity = &m_Handles[owner_index]; |
|
dvander@229
|
309 |
if (pIdentity->ch_prev == 0) |
|
dvander@229
|
310 |
{ |
|
dvander@229
|
311 |
pIdentity->ch_prev = handle; |
|
dvander@229
|
312 |
pIdentity->ch_next = handle; |
|
dvander@229
|
313 |
pHandle->ch_prev = 0; |
|
dvander@229
|
314 |
} else { |
|
dvander@229
|
315 |
/* Link previous node to us (forward) */ |
|
dvander@229
|
316 |
m_Handles[pIdentity->ch_next].ch_next = handle; |
|
dvander@229
|
317 |
/* Link us to previous node (backwards) */ |
|
dvander@229
|
318 |
pHandle->ch_prev = pIdentity->ch_next; |
|
dvander@229
|
319 |
/* Set new tail */ |
|
dvander@229
|
320 |
pIdentity->ch_next = handle; |
|
dvander@229
|
321 |
} |
|
dvander@229
|
322 |
pIdentity->refcount++; |
|
dvander@229
|
323 |
} else { |
|
dvander@229
|
324 |
pHandle->ch_prev = 0; |
|
dvander@229
|
325 |
} |
|
dvander@229
|
326 |
|
|
dvander@222
|
327 |
return HandleError_None; |
|
dvander@222
|
328 |
} |
|
dvander@222
|
329 |
|
|
dvander@229
|
330 |
void HandleSystem::SetTypeSecurityOwner(HandleType_t type, IdentityToken_t *pToken) |
|
dvander@229
|
331 |
{ |
|
dvander@229
|
332 |
if (!type |
|
dvander@229
|
333 |
|| type >= HANDLESYS_TYPEARRAY_SIZE |
|
dvander@229
|
334 |
|| m_Types[type].dispatch == NULL) |
|
dvander@229
|
335 |
{ |
|
dvander@229
|
336 |
return; |
|
dvander@229
|
337 |
} |
|
dvander@229
|
338 |
|
|
dvander@262
|
339 |
m_Types[type].typeSec.ident = pToken; |
|
dvander@229
|
340 |
} |
|
dvander@229
|
341 |
|
|
dvander@528
|
342 |
Handle_t HandleSystem::CreateHandleInt(HandleType_t type, |
|
dvander@528
|
343 |
void *object, |
|
dvander@528
|
344 |
const HandleSecurity *pSec, |
|
dvander@528
|
345 |
HandleError *err, |
|
dvander@528
|
346 |
const HandleAccess *pAccess, |
|
dvander@528
|
347 |
bool identity) |
|
dvander@218
|
348 |
{ |
|
dvander@528
|
349 |
IdentityToken_t *ident; |
|
dvander@528
|
350 |
IdentityToken_t *owner; |
|
dvander@528
|
351 |
|
|
dvander@528
|
352 |
if (pSec) |
|
dvander@528
|
353 |
{ |
|
dvander@528
|
354 |
ident = pSec->pIdentity; |
|
dvander@528
|
355 |
owner = pSec->pOwner; |
|
dvander@528
|
356 |
} else { |
|
dvander@528
|
357 |
ident = NULL; |
|
dvander@528
|
358 |
owner = NULL; |
|
dvander@528
|
359 |
} |
|
dvander@528
|
360 |
|
|
dvander@218
|
361 |
if (!type |
|
dvander@218
|
362 |
|| type >= HANDLESYS_TYPEARRAY_SIZE |
|
dvander@218
|
363 |
|| m_Types[type].dispatch == NULL) |
|
dvander@218
|
364 |
{ |
|
dvander@262
|
365 |
if (err) |
|
dvander@262
|
366 |
{ |
|
dvander@262
|
367 |
*err = HandleError_Parameter; |
|
dvander@262
|
368 |
} |
|
dvander@218
|
369 |
return 0; |
|
dvander@218
|
370 |
} |
|
dvander@218
|
371 |
|
|
dvander@262
|
372 |
/* Check to see if we're allowed to create this handle type */ |
|
dvander@218
|
373 |
QHandleType *pType = &m_Types[type]; |
|
dvander@262
|
374 |
if (!pType->typeSec.access[HTypeAccess_Create] |
|
dvander@283
|
375 |
&& (!pType->typeSec.ident |
|
dvander@283
|
376 |
|| pType->typeSec.ident != ident)) |
|
dvander@218
|
377 |
{ |
|
dvander@262
|
378 |
if (err) |
|
dvander@262
|
379 |
{ |
|
dvander@262
|
380 |
*err = HandleError_Access; |
|
dvander@262
|
381 |
} |
|
dvander@218
|
382 |
return 0; |
|
dvander@218
|
383 |
} |
|
dvander@218
|
384 |
|
|
dvander@222
|
385 |
unsigned int index; |
|
dvander@222
|
386 |
Handle_t handle; |
|
dvander@222
|
387 |
QHandle *pHandle; |
|
dvander@262
|
388 |
HandleError _err; |
|
dvander@222
|
389 |
|
|
dvander@283
|
390 |
if ((_err=MakePrimHandle(type, &pHandle, &index, &handle, owner, identity)) != HandleError_None) |
|
dvander@218
|
391 |
{ |
|
dvander@262
|
392 |
if (err) |
|
dvander@262
|
393 |
{ |
|
dvander@262
|
394 |
*err = _err; |
|
dvander@262
|
395 |
} |
|
dvander@222
|
396 |
return 0; |
|
dvander@218
|
397 |
} |
|
dvander@218
|
398 |
|
|
dvander@528
|
399 |
if (pAccess) |
|
dvander@528
|
400 |
{ |
|
dvander@528
|
401 |
pHandle->access_special = true; |
|
dvander@528
|
402 |
pHandle->sec = *pAccess; |
|
dvander@528
|
403 |
} |
|
dvander@528
|
404 |
|
|
dvander@218
|
405 |
pHandle->object = object; |
|
dvander@222
|
406 |
pHandle->clone = 0; |
|
dvander@218
|
407 |
|
|
dvander@222
|
408 |
return handle; |
|
dvander@218
|
409 |
} |
|
dvander@218
|
410 |
|
|
dvander@528
|
411 |
Handle_t HandleSystem::CreateHandleEx(HandleType_t type, void *object, const HandleSecurity *pSec, const HandleAccess *pAccess, HandleError *err) |
|
dvander@528
|
412 |
{ |
|
dvander@528
|
413 |
return CreateHandleInt(type, object, pSec, err, pAccess, false); |
|
dvander@528
|
414 |
} |
|
dvander@528
|
415 |
|
|
dvander@283
|
416 |
Handle_t HandleSystem::CreateHandle(HandleType_t type, void *object, IdentityToken_t *owner, IdentityToken_t *ident, HandleError *err) |
|
dvander@283
|
417 |
{ |
|
dvander@528
|
418 |
HandleSecurity sec; |
|
dvander@528
|
419 |
|
|
dvander@528
|
420 |
sec.pIdentity = ident; |
|
dvander@528
|
421 |
sec.pOwner = owner; |
|
dvander@528
|
422 |
|
|
dvander@528
|
423 |
return CreateHandleEx(type, object, &sec, NULL, err); |
|
dvander@283
|
424 |
} |
|
dvander@283
|
425 |
|
|
dvander@229
|
426 |
bool HandleSystem::TypeCheck(HandleType_t intype, HandleType_t outtype) |
|
dvander@229
|
427 |
{ |
|
dvander@229
|
428 |
/* Check the type inheritance */ |
|
dvander@229
|
429 |
if (intype & HANDLESYS_SUBTYPE_MASK) |
|
dvander@229
|
430 |
{ |
|
dvander@229
|
431 |
if (intype != outtype |
|
dvander@229
|
432 |
&& (TypeParent(intype) != TypeParent(outtype))) |
|
dvander@229
|
433 |
{ |
|
dvander@229
|
434 |
return false; |
|
dvander@229
|
435 |
} |
|
dvander@229
|
436 |
} else { |
|
dvander@229
|
437 |
if (intype != outtype) |
|
dvander@229
|
438 |
{ |
|
dvander@229
|
439 |
return false; |
|
dvander@229
|
440 |
} |
|
dvander@229
|
441 |
} |
|
dvander@229
|
442 |
|
|
dvander@229
|
443 |
return true; |
|
dvander@229
|
444 |
} |
|
dvander@229
|
445 |
|
|
dvander@222
|
446 |
HandleError HandleSystem::GetHandle(Handle_t handle, |
|
dvander@229
|
447 |
IdentityToken_t *ident, |
|
dvander@222
|
448 |
QHandle **in_pHandle, |
|
dvander@222
|
449 |
unsigned int *in_index, |
|
dvander@259
|
450 |
bool ignoreFree) |
|
dvander@218
|
451 |
{ |
|
dvander@218
|
452 |
unsigned int serial = (handle >> 16); |
|
dvander@218
|
453 |
unsigned int index = (handle & HANDLESYS_HANDLE_MASK); |
|
dvander@218
|
454 |
|
|
dvander@218
|
455 |
if (index == 0 || index == 0xFFFF) |
|
dvander@218
|
456 |
{ |
|
dvander@218
|
457 |
return HandleError_Index; |
|
dvander@218
|
458 |
} |
|
dvander@218
|
459 |
|
|
dvander@218
|
460 |
QHandle *pHandle = &m_Handles[index]; |
|
dvander@218
|
461 |
|
|
dvander@259
|
462 |
if (!pHandle->set |
|
dvander@259
|
463 |
|| (pHandle->set == HandleSet_Freed && !ignoreFree)) |
|
dvander@218
|
464 |
{ |
|
dvander@218
|
465 |
return HandleError_Freed; |
|
dvander@229
|
466 |
} else if (pHandle->set == HandleSet_Identity |
|
dvander@229
|
467 |
&& ident != g_ShareSys.GetIdentRoot()) |
|
dvander@229
|
468 |
{ |
|
dvander@229
|
469 |
/* Only IdentityHandle() can read this! */ |
|
dvander@229
|
470 |
return HandleError_Identity; |
|
dvander@218
|
471 |
} |
|
dvander@218
|
472 |
if (pHandle->serial != serial) |
|
dvander@218
|
473 |
{ |
|
dvander@218
|
474 |
return HandleError_Changed; |
|
dvander@218
|
475 |
} |
|
dvander@218
|
476 |
|
|
dvander@222
|
477 |
*in_pHandle = pHandle; |
|
dvander@222
|
478 |
*in_index = index; |
|
dvander@222
|
479 |
|
|
dvander@222
|
480 |
return HandleError_None; |
|
dvander@222
|
481 |
} |
|
dvander@222
|
482 |
|
|
dvander@262
|
483 |
bool HandleSystem::CheckAccess(QHandle *pHandle, HandleAccessRight right, const HandleSecurity *pSecurity) |
|
dvander@262
|
484 |
{ |
|
dvander@262
|
485 |
QHandleType *pType = &m_Types[pHandle->type]; |
|
dvander@528
|
486 |
unsigned int access; |
|
dvander@528
|
487 |
|
|
dvander@528
|
488 |
if (pHandle->access_special) |
|
dvander@528
|
489 |
{ |
|
dvander@528
|
490 |
access = pHandle->sec.access[right]; |
|
dvander@528
|
491 |
} else { |
|
dvander@528
|
492 |
access = pType->hndlSec.access[right]; |
|
dvander@528
|
493 |
} |
|
dvander@262
|
494 |
|
|
dvander@262
|
495 |
/* Check if the type's identity matches */ |
|
dvander@262
|
496 |
if (access & HANDLE_RESTRICT_IDENTITY) |
|
dvander@262
|
497 |
{ |
|
dvander@262
|
498 |
IdentityToken_t *owner = pType->typeSec.ident; |
|
dvander@262
|
499 |
if (!owner |
|
dvander@262
|
500 |
|| (!pSecurity || pSecurity->pIdentity != owner)) |
|
dvander@262
|
501 |
{ |
|
dvander@262
|
502 |
return false; |
|
dvander@262
|
503 |
} |
|
dvander@262
|
504 |
} |
|
dvander@262
|
505 |
|
|
dvander@262
|
506 |
/* Check if the owner is allowed */ |
|
dvander@262
|
507 |
if (access & HANDLE_RESTRICT_OWNER) |
|
dvander@262
|
508 |
{ |
|
dvander@262
|
509 |
IdentityToken_t *owner = pHandle->owner; |
|
dvander@262
|
510 |
if (owner |
|
dvander@262
|
511 |
&& (!pSecurity || pSecurity->pOwner != owner)) |
|
dvander@262
|
512 |
{ |
|
dvander@262
|
513 |
return false; |
|
dvander@262
|
514 |
} |
|
dvander@262
|
515 |
} |
|
dvander@262
|
516 |
|
|
dvander@262
|
517 |
return true; |
|
dvander@262
|
518 |
} |
|
dvander@262
|
519 |
|
|
dvander@283
|
520 |
HandleError HandleSystem::CloneHandle(QHandle *pHandle, unsigned int index, Handle_t *newhandle, IdentityToken_t *newOwner) |
|
dvander@283
|
521 |
{ |
|
dvander@283
|
522 |
/* Get a new Handle ID */ |
|
dvander@283
|
523 |
unsigned int new_index; |
|
dvander@283
|
524 |
QHandle *pNewHandle; |
|
dvander@283
|
525 |
Handle_t new_handle; |
|
dvander@283
|
526 |
HandleError err; |
|
dvander@283
|
527 |
|
|
dvander@283
|
528 |
if ((err=MakePrimHandle(pHandle->type, &pNewHandle, &new_index, &new_handle, newOwner)) != HandleError_None) |
|
dvander@283
|
529 |
{ |
|
dvander@283
|
530 |
return err; |
|
dvander@283
|
531 |
} |
|
dvander@283
|
532 |
|
|
dvander@528
|
533 |
/* Assign permissions from parent */ |
|
dvander@528
|
534 |
if (pHandle->access_special) |
|
dvander@528
|
535 |
{ |
|
dvander@528
|
536 |
pNewHandle->access_special = true; |
|
dvander@528
|
537 |
pNewHandle->sec = pHandle->sec; |
|
dvander@528
|
538 |
} |
|
dvander@528
|
539 |
|
|
dvander@283
|
540 |
pNewHandle->clone = index; |
|
dvander@283
|
541 |
pHandle->refcount++; |
|
dvander@283
|
542 |
|
|
dvander@283
|
543 |
*newhandle = new_handle; |
|
dvander@283
|
544 |
|
|
dvander@283
|
545 |
return HandleError_None; |
|
dvander@283
|
546 |
} |
|
dvander@283
|
547 |
|
|
dvander@262
|
548 |
HandleError HandleSystem::CloneHandle(Handle_t handle, Handle_t *newhandle, IdentityToken_t *newOwner, const HandleSecurity *pSecurity) |
|
dvander@222
|
549 |
{ |
|
dvander@222
|
550 |
HandleError err; |
|
dvander@222
|
551 |
QHandle *pHandle; |
|
dvander@222
|
552 |
unsigned int index; |
|
dvander@262
|
553 |
IdentityToken_t *ident = pSecurity ? pSecurity->pIdentity : NULL; |
|
dvander@222
|
554 |
|
|
dvander@262
|
555 |
if ((err=GetHandle(handle, ident, &pHandle, &index)) != HandleError_None) |
|
dvander@222
|
556 |
{ |
|
dvander@222
|
557 |
return err; |
|
dvander@222
|
558 |
} |
|
dvander@222
|
559 |
|
|
dvander@259
|
560 |
/* Identities cannot be cloned */ |
|
dvander@259
|
561 |
if (pHandle->set == HandleSet_Identity) |
|
dvander@259
|
562 |
{ |
|
dvander@259
|
563 |
return HandleError_Identity; |
|
dvander@259
|
564 |
} |
|
dvander@259
|
565 |
|
|
dvander@262
|
566 |
/* Check if the handle can be cloned */ |
|
dvander@262
|
567 |
if (!CheckAccess(pHandle, HandleAccess_Clone, pSecurity)) |
|
dvander@262
|
568 |
{ |
|
dvander@262
|
569 |
return HandleError_Access; |
|
dvander@262
|
570 |
} |
|
dvander@222
|
571 |
|
|
dvander@283
|
572 |
/* Make sure we're not cloning a clone */ |
|
dvander@283
|
573 |
if (pHandle->clone) |
|
dvander@222
|
574 |
{ |
|
dvander@283
|
575 |
QHandle *pParent = &m_Handles[pHandle->clone]; |
|
dvander@283
|
576 |
return CloneHandle(pParent, pHandle->clone, newhandle, newOwner); |
|
dvander@222
|
577 |
} |
|
dvander@222
|
578 |
|
|
dvander@283
|
579 |
return CloneHandle(pHandle, index, newhandle, newOwner); |
|
dvander@283
|
580 |
} |
|
dvander@283
|
581 |
|
|
dvander@283
|
582 |
HandleError HandleSystem::FreeHandle(QHandle *pHandle, unsigned int index) |
|
dvander@283
|
583 |
{ |
|
dvander@283
|
584 |
QHandleType *pType = &m_Types[pHandle->type]; |
|
dvander@283
|
585 |
|
|
dvander@283
|
586 |
if (pHandle->clone) |
|
dvander@283
|
587 |
{ |
|
dvander@283
|
588 |
/* If we're a clone, decrease the parent reference count */ |
|
dvander@283
|
589 |
QHandle *pMaster; |
|
dvander@283
|
590 |
unsigned int master; |
|
dvander@283
|
591 |
|
|
dvander@283
|
592 |
/* Note that if we ever have per-handle security, we would need to re-check |
|
dvander@283
|
593 |
* the access on this Handle. */ |
|
dvander@283
|
594 |
master = pHandle->clone; |
|
dvander@283
|
595 |
pMaster = &m_Handles[master]; |
|
dvander@283
|
596 |
|
|
dvander@283
|
597 |
/* Release the clone now */ |
|
dvander@283
|
598 |
ReleasePrimHandle(index); |
|
dvander@222
|
599 |
|
|
dvander@283
|
600 |
/* Decrement the master's reference count */ |
|
dvander@283
|
601 |
if (--pMaster->refcount == 0) |
|
dvander@283
|
602 |
{ |
|
dvander@283
|
603 |
/* Type should be the same but do this anyway... */ |
|
dvander@283
|
604 |
pType = &m_Types[pMaster->type]; |
|
dvander@789
|
605 |
pMaster->is_destroying = true; |
|
dvander@283
|
606 |
pType->dispatch->OnHandleDestroy(pMaster->type, pMaster->object); |
|
dvander@283
|
607 |
ReleasePrimHandle(master); |
|
dvander@283
|
608 |
} |
|
dvander@283
|
609 |
} else if (pHandle->set == HandleSet_Identity) { |
|
dvander@283
|
610 |
/* If we're an identity, skip all this stuff! |
|
dvander@283
|
611 |
* NOTE: SHARESYS DOES NOT CARE ABOUT THE DESTRUCTOR |
|
dvander@283
|
612 |
*/ |
|
dvander@283
|
613 |
ReleasePrimHandle(index); |
|
dvander@283
|
614 |
} else { |
|
dvander@283
|
615 |
/* Decrement, free if necessary */ |
|
dvander@283
|
616 |
if (--pHandle->refcount == 0) |
|
dvander@283
|
617 |
{ |
|
dvander@789
|
618 |
pHandle->is_destroying = true; |
|
dvander@283
|
619 |
pType->dispatch->OnHandleDestroy(pHandle->type, pHandle->object); |
|
dvander@283
|
620 |
ReleasePrimHandle(index); |
|
dvander@283
|
621 |
} else { |
|
dvander@283
|
622 |
/* We must be cloned, so mark ourselves as freed */ |
|
dvander@283
|
623 |
pHandle->set = HandleSet_Freed; |
|
dvander@283
|
624 |
/* Now, unlink us, so we're not being tracked by the owner */ |
|
dvander@283
|
625 |
if (pHandle->owner) |
|
dvander@283
|
626 |
{ |
|
dvander@283
|
627 |
UnlinkHandleFromOwner(pHandle, index); |
|
dvander@283
|
628 |
} |
|
dvander@283
|
629 |
} |
|
dvander@283
|
630 |
} |
|
dvander@222
|
631 |
|
|
dvander@222
|
632 |
return HandleError_None; |
|
dvander@222
|
633 |
} |
|
dvander@222
|
634 |
|
|
dvander@262
|
635 |
HandleError HandleSystem::FreeHandle(Handle_t handle, const HandleSecurity *pSecurity) |
|
dvander@222
|
636 |
{ |
|
dvander@222
|
637 |
unsigned int index; |
|
dvander@222
|
638 |
QHandle *pHandle; |
|
dvander@222
|
639 |
HandleError err; |
|
dvander@262
|
640 |
IdentityToken_t *ident = pSecurity ? pSecurity->pIdentity : NULL; |
|
dvander@222
|
641 |
|
|
dvander@262
|
642 |
if ((err=GetHandle(handle, ident, &pHandle, &index)) != HandleError_None) |
|
dvander@222
|
643 |
{ |
|
dvander@222
|
644 |
return err; |
|
dvander@222
|
645 |
} |
|
dvander@222
|
646 |
|
|
dvander@262
|
647 |
if (!CheckAccess(pHandle, HandleAccess_Delete, pSecurity)) |
|
dvander@259
|
648 |
{ |
|
dvander@259
|
649 |
return HandleError_Access; |
|
dvander@259
|
650 |
} |
|
dvander@259
|
651 |
|
|
dvander@789
|
652 |
if (pHandle->is_destroying) |
|
dvander@789
|
653 |
{ |
|
dvander@789
|
654 |
/* Someone tried to free this recursively. |
|
dvander@789
|
655 |
* We'll just ignore this safely. |
|
dvander@789
|
656 |
*/ |
|
dvander@789
|
657 |
return HandleError_None; |
|
dvander@789
|
658 |
} |
|
dvander@789
|
659 |
|
|
dvander@283
|
660 |
return FreeHandle(pHandle, index); |
|
dvander@218
|
661 |
} |
|
dvander@218
|
662 |
|
|
dvander@262
|
663 |
HandleError HandleSystem::ReadHandle(Handle_t handle, HandleType_t type, const HandleSecurity *pSecurity, void **object) |
|
dvander@218
|
664 |
{ |
|
dvander@222
|
665 |
unsigned int index; |
|
dvander@222
|
666 |
QHandle *pHandle; |
|
dvander@222
|
667 |
HandleError err; |
|
dvander@262
|
668 |
IdentityToken_t *ident = pSecurity ? pSecurity->pIdentity : NULL; |
|
dvander@218
|
669 |
|
|
dvander@262
|
670 |
if ((err=GetHandle(handle, ident, &pHandle, &index)) != HandleError_None) |
|
dvander@218
|
671 |
{ |
|
dvander@222
|
672 |
return err; |
|
dvander@218
|
673 |
} |
|
dvander@218
|
674 |
|
|
dvander@262
|
675 |
if (!CheckAccess(pHandle, HandleAccess_Read, pSecurity)) |
|
dvander@262
|
676 |
{ |
|
dvander@262
|
677 |
return HandleError_Access; |
|
dvander@262
|
678 |
} |
|
dvander@262
|
679 |
|
|
dvander@218
|
680 |
/* Check the type inheritance */ |
|
dvander@218
|
681 |
if (pHandle->type & HANDLESYS_SUBTYPE_MASK) |
|
dvander@218
|
682 |
{ |
|
dvander@218
|
683 |
if (pHandle->type != type |
|
dvander@218
|
684 |
&& (TypeParent(pHandle->type) != TypeParent(type))) |
|
dvander@218
|
685 |
{ |
|
dvander@218
|
686 |
return HandleError_Type; |
|
dvander@218
|
687 |
} |
|
dvander@247
|
688 |
} else if (type) { |
|
dvander@218
|
689 |
if (pHandle->type != type) |
|
dvander@218
|
690 |
{ |
|
dvander@218
|
691 |
return HandleError_Type; |
|
dvander@218
|
692 |
} |
|
dvander@218
|
693 |
} |
|
dvander@218
|
694 |
|
|
dvander@218
|
695 |
if (object) |
|
dvander@218
|
696 |
{ |
|
dvander@222
|
697 |
/* if we're a clone, the rules change - object is ONLY in our reference */ |
|
dvander@222
|
698 |
if (pHandle->clone) |
|
dvander@222
|
699 |
{ |
|
dvander@262
|
700 |
pHandle = &m_Handles[pHandle->clone]; |
|
dvander@222
|
701 |
} |
|
dvander@218
|
702 |
*object = pHandle->object; |
|
dvander@218
|
703 |
} |
|
dvander@218
|
704 |
|
|
dvander@218
|
705 |
return HandleError_None; |
|
dvander@218
|
706 |
} |
|
dvander@218
|
707 |
|
|
dvander@283
|
708 |
void HandleSystem::UnlinkHandleFromOwner(QHandle *pHandle, unsigned int index) |
|
dvander@283
|
709 |
{ |
|
dvander@283
|
710 |
/* Unlink us if necessary */ |
|
dvander@283
|
711 |
unsigned int ident_index; |
|
dvander@283
|
712 |
if (IdentityHandle(pHandle->owner, &ident_index) != HandleError_None) |
|
dvander@283
|
713 |
{ |
|
dvander@283
|
714 |
/* Uh-oh! */ |
|
dvander@283
|
715 |
assert(pHandle->owner == 0); |
|
dvander@283
|
716 |
return; |
|
dvander@283
|
717 |
} |
|
dvander@283
|
718 |
/* Note that since 0 is an invalid handle, if any of these links are 0, |
|
dvander@283
|
719 |
* the data can still be set. |
|
dvander@283
|
720 |
*/ |
|
dvander@283
|
721 |
QHandle *pIdentity = &m_Handles[ident_index]; |
|
dvander@283
|
722 |
|
|
dvander@283
|
723 |
/* Unlink case: We're the head AND tail node */ |
|
dvander@283
|
724 |
if (index == pIdentity->ch_prev && index == pIdentity->ch_next) |
|
dvander@283
|
725 |
{ |
|
dvander@283
|
726 |
pIdentity->ch_prev = 0; |
|
dvander@283
|
727 |
pIdentity->ch_next = 0; |
|
dvander@283
|
728 |
} |
|
dvander@283
|
729 |
/* Unlink case: We're the head node */ |
|
dvander@283
|
730 |
else if (index == pIdentity->ch_prev) { |
|
dvander@283
|
731 |
/* Link us to the next in the chain */ |
|
dvander@283
|
732 |
pIdentity->ch_prev = pHandle->ch_next; |
|
dvander@283
|
733 |
/* Patch up the previous link */ |
|
dvander@283
|
734 |
m_Handles[pHandle->ch_next].ch_prev = 0; |
|
dvander@283
|
735 |
} |
|
dvander@283
|
736 |
/* Unlink case: We're the tail node */ |
|
dvander@283
|
737 |
else if (index == pIdentity->ch_next) { |
|
dvander@283
|
738 |
/* Link us to the previous in the chain */ |
|
dvander@283
|
739 |
pIdentity->ch_next = pHandle->ch_prev; |
|
dvander@283
|
740 |
/* Patch up the next link */ |
|
dvander@283
|
741 |
m_Handles[pHandle->ch_prev].ch_next = 0; |
|
dvander@283
|
742 |
} |
|
dvander@283
|
743 |
/* Unlink case: We're in the middle! */ |
|
dvander@283
|
744 |
else { |
|
dvander@283
|
745 |
/* Patch the forward reference */ |
|
dvander@283
|
746 |
m_Handles[pHandle->ch_next].ch_prev = pHandle->ch_prev; |
|
dvander@283
|
747 |
/* Patch the backward reference */ |
|
dvander@283
|
748 |
m_Handles[pHandle->ch_prev].ch_next = pHandle->ch_next; |
|
dvander@283
|
749 |
} |
|
dvander@283
|
750 |
|
|
dvander@283
|
751 |
/* Lastly, decrease the reference count */ |
|
dvander@283
|
752 |
pIdentity->refcount--; |
|
dvander@283
|
753 |
} |
|
dvander@283
|
754 |
|
|
dvander@222
|
755 |
void HandleSystem::ReleasePrimHandle(unsigned int index) |
|
dvander@222
|
756 |
{ |
|
dvander@222
|
757 |
QHandle *pHandle = &m_Handles[index]; |
|
dvander@283
|
758 |
HandleSet set = pHandle->set; |
|
dvander@283
|
759 |
|
|
dvander@283
|
760 |
if (pHandle->owner && (set != HandleSet_Identity)) |
|
dvander@283
|
761 |
{ |
|
dvander@283
|
762 |
UnlinkHandleFromOwner(pHandle, index); |
|
dvander@283
|
763 |
} |
|
dvander@283
|
764 |
|
|
dvander@283
|
765 |
/* Were we an identity ourself? */ |
|
dvander@283
|
766 |
QHandle *pLocal; |
|
dvander@283
|
767 |
if (set == HandleSet_Identity) |
|
dvander@283
|
768 |
{ |
|
dvander@283
|
769 |
/* Extra work to do. We need to find everything connected to this identity and release it. */ |
|
dvander@351
|
770 |
unsigned int ch_index; |
|
dvander@364
|
771 |
#if defined _DEBUG |
|
dvander@364
|
772 |
unsigned int old_index = 0; |
|
dvander@364
|
773 |
#endif |
|
dvander@283
|
774 |
while ((ch_index = pHandle->ch_next) != 0) |
|
dvander@283
|
775 |
{ |
|
dvander@283
|
776 |
pLocal = &m_Handles[ch_index]; |
|
dvander@283
|
777 |
#if defined _DEBUG |
|
dvander@283
|
778 |
assert(old_index != ch_index); |
|
dvander@283
|
779 |
assert(pLocal->set == HandleSet_Used); |
|
dvander@283
|
780 |
old_index = ch_index; |
|
dvander@283
|
781 |
#endif |
|
dvander@283
|
782 |
FreeHandle(pLocal, ch_index); |
|
dvander@283
|
783 |
} |
|
dvander@283
|
784 |
} |
|
dvander@283
|
785 |
|
|
dvander@229
|
786 |
pHandle->set = HandleSet_None; |
|
dvander@222
|
787 |
m_Types[pHandle->type].opened--; |
|
dvander@222
|
788 |
m_Handles[++m_FreeHandles].freeID = index; |
|
dvander@222
|
789 |
} |
|
dvander@222
|
790 |
|
|
dvander@229
|
791 |
bool HandleSystem::RemoveType(HandleType_t type, IdentityToken_t *ident) |
|
dvander@218
|
792 |
{ |
|
dvander@218
|
793 |
if (type == 0 || type >= HANDLESYS_TYPEARRAY_SIZE) |
|
dvander@218
|
794 |
{ |
|
dvander@218
|
795 |
return false; |
|
dvander@218
|
796 |
} |
|
dvander@218
|
797 |
|
|
dvander@218
|
798 |
QHandleType *pType = &m_Types[type]; |
|
dvander@218
|
799 |
|
|
dvander@262
|
800 |
if (pType->typeSec.ident |
|
dvander@262
|
801 |
&& pType->typeSec.ident != ident) |
|
dvander@218
|
802 |
{ |
|
dvander@218
|
803 |
return false; |
|
dvander@218
|
804 |
} |
|
dvander@218
|
805 |
|
|
dvander@218
|
806 |
if (pType->dispatch == NULL) |
|
dvander@218
|
807 |
{ |
|
dvander@218
|
808 |
return false; |
|
dvander@218
|
809 |
} |
|
dvander@218
|
810 |
|
|
dvander@218
|
811 |
/* Remove children if we have to */ |
|
dvander@218
|
812 |
if (!(type & HANDLESYS_SUBTYPE_MASK)) |
|
dvander@218
|
813 |
{ |
|
dvander@218
|
814 |
QHandleType *childType; |
|
dvander@218
|
815 |
for (unsigned int i=1; i<=HANDLESYS_MAX_SUBTYPES; i++) |
|
dvander@218
|
816 |
{ |
|
dvander@218
|
817 |
childType = &m_Types[type + i]; |
|
dvander@218
|
818 |
if (childType->dispatch) |
|
dvander@218
|
819 |
{ |
|
dvander@262
|
820 |
RemoveType(type + i, childType->typeSec.ident); |
|
dvander@218
|
821 |
} |
|
dvander@218
|
822 |
} |
|
dvander@218
|
823 |
/* Link us into the free chain */ |
|
dvander@218
|
824 |
m_Types[++m_FreeTypes].freeID = type; |
|
dvander@218
|
825 |
} |
|
dvander@218
|
826 |
|
|
dvander@218
|
827 |
/* Invalidate the type now */ |
|
dvander@218
|
828 |
IHandleTypeDispatch *dispatch = pType->dispatch; |
|
dvander@218
|
829 |
pType->dispatch = NULL; |
|
dvander@218
|
830 |
|
|
dvander@218
|
831 |
/* Make sure nothing is using this type. */ |
|
dvander@218
|
832 |
if (pType->opened) |
|
dvander@218
|
833 |
{ |
|
dvander@218
|
834 |
QHandle *pHandle; |
|
dvander@297
|
835 |
for (unsigned int i=1; i<=m_HandleTail; i++) |
|
dvander@218
|
836 |
{ |
|
dvander@218
|
837 |
pHandle = &m_Handles[i]; |
|
dvander@218
|
838 |
if (!pHandle->set || pHandle->type != type) |
|
dvander@218
|
839 |
{ |
|
dvander@218
|
840 |
continue; |
|
dvander@218
|
841 |
} |
|
dvander@222
|
842 |
if (pHandle->clone) |
|
dvander@222
|
843 |
{ |
|
dvander@222
|
844 |
/* Get parent */ |
|
dvander@222
|
845 |
QHandle *pOther = &m_Handles[pHandle->clone]; |
|
dvander@222
|
846 |
if (--pOther->refcount == 0) |
|
dvander@222
|
847 |
{ |
|
dvander@222
|
848 |
/* Free! */ |
|
dvander@222
|
849 |
dispatch->OnHandleDestroy(type, pOther->object); |
|
dvander@222
|
850 |
ReleasePrimHandle(pHandle->clone); |
|
dvander@222
|
851 |
} |
|
dvander@222
|
852 |
/* Unlink ourselves since we don't have a reference count */ |
|
dvander@222
|
853 |
ReleasePrimHandle(i); |
|
dvander@222
|
854 |
} else { |
|
dvander@222
|
855 |
/* If it's not a clone, we still have to check the reference count. |
|
dvander@222
|
856 |
* Either way, we'll be destroyed eventually because the handle types do not change. |
|
dvander@222
|
857 |
*/ |
|
dvander@222
|
858 |
if (--pHandle->refcount == 0) |
|
dvander@222
|
859 |
{ |
|
dvander@222
|
860 |
/* Free! */ |
|
dvander@222
|
861 |
dispatch->OnHandleDestroy(type, pHandle->object); |
|
dvander@222
|
862 |
ReleasePrimHandle(i); |
|
dvander@222
|
863 |
} |
|
dvander@222
|
864 |
} |
|
dvander@222
|
865 |
if (pType->opened == 0) |
|
dvander@218
|
866 |
{ |
|
dvander@218
|
867 |
break; |
|
dvander@218
|
868 |
} |
|
dvander@218
|
869 |
} |
|
dvander@218
|
870 |
} |
|
dvander@218
|
871 |
|
|
dvander@218
|
872 |
return true; |
|
dvander@218
|
873 |
} |
|
dvander@229
|
874 |
|
|
dvander@262
|
875 |
bool HandleSystem::InitAccessDefaults(TypeAccess *pTypeAccess, HandleAccess *pHandleAccess) |
|
dvander@262
|
876 |
{ |
|
dvander@262
|
877 |
if (pTypeAccess) |
|
dvander@262
|
878 |
{ |
|
dvander@262
|
879 |
if (pTypeAccess->hsVersion > SMINTERFACE_HANDLESYSTEM_VERSION) |
|
dvander@262
|
880 |
{ |
|
dvander@262
|
881 |
return false; |
|
dvander@262
|
882 |
} |
|
dvander@262
|
883 |
pTypeAccess->access[HTypeAccess_Create] = false; |
|
dvander@262
|
884 |
pTypeAccess->access[HTypeAccess_Inherit] = false; |
|
dvander@262
|
885 |
pTypeAccess->ident = NULL; |
|
dvander@262
|
886 |
} |
|
dvander@262
|
887 |
|
|
dvander@262
|
888 |
if (pHandleAccess) |
|
dvander@262
|
889 |
{ |
|
dvander@262
|
890 |
if (pHandleAccess->hsVersion > SMINTERFACE_HANDLESYSTEM_VERSION) |
|
dvander@262
|
891 |
{ |
|
dvander@262
|
892 |
return false; |
|
dvander@262
|
893 |
} |
|
dvander@262
|
894 |
|
|
dvander@262
|
895 |
pHandleAccess->access[HandleAccess_Clone] = 0; |
|
dvander@262
|
896 |
pHandleAccess->access[HandleAccess_Delete] = HANDLE_RESTRICT_OWNER; |
|
dvander@262
|
897 |
pHandleAccess->access[HandleAccess_Read] = HANDLE_RESTRICT_IDENTITY; |
|
dvander@262
|
898 |
} |
|
dvander@262
|
899 |
|
|
dvander@262
|
900 |
return true; |
|
dvander@262
|
901 |
} |
