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[svn r136] MAJOR UNSTABLE UPDATE!!! Initial commit after moving to Tango instead of Phobos. Lots of bugfixes... This build is not suitable for most things.
author lindquist
date Fri, 11 Jan 2008 17:57:40 +0100
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children 7816aafeea3c
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131:5825d48b27d1 132:1700239cab2e
1 /**
2 * This module contains the garbage collector front-end.
3 *
4 * Copyright: Copyright (C) 2005-2006 Digital Mars, www.digitalmars.com.
5 * All rights reserved.
6 * License:
7 * This software is provided 'as-is', without any express or implied
8 * warranty. In no event will the authors be held liable for any damages
9 * arising from the use of this software.
10 *
11 * Permission is granted to anyone to use this software for any purpose,
12 * including commercial applications, and to alter it and redistribute it
13 * freely, in both source and binary form, subject to the following
14 * restrictions:
15 *
16 * o The origin of this software must not be misrepresented; you must not
17 * claim that you wrote the original software. If you use this software
18 * in a product, an acknowledgment in the product documentation would be
19 * appreciated but is not required.
20 * o Altered source versions must be plainly marked as such, and must not
21 * be misrepresented as being the original software.
22 * o This notice may not be removed or altered from any source
23 * distribution.
24 * Authors: Walter Bright, Sean Kelly
25 */
26
27 private import gcx;
28 private import tango.stdc.stdlib;
29
30 version=GCCLASS;
31
32 version (GCCLASS)
33 alias GC gc_t;
34 else
35 alias GC* gc_t;
36
37 gc_t _gc;
38
39 extern (C) void thread_init();
40
41 extern (C) void gc_init()
42 {
43 version (GCCLASS)
44 { void* p;
45 ClassInfo ci = GC.classinfo;
46
47 p = tango.stdc.stdlib.malloc(ci.init.length);
48 (cast(byte*)p)[0 .. ci.init.length] = ci.init[];
49 _gc = cast(GC)p;
50 }
51 else
52 {
53 _gc = cast(GC*) tango.stdc.stdlib.calloc(1, GC.sizeof);
54 }
55 _gc.initialize();
56 // NOTE: The GC must initialize the thread library
57 // before its first collection.
58 thread_init();
59 }
60
61 extern (C) void gc_term()
62 {
63 // NOTE: There may be daemons threads still running when this routine is
64 // called. If so, cleaning memory out from under then is a good
65 // way to make them crash horribly. This probably doesn't matter
66 // much since the app is supposed to be shutting down anyway, but
67 // I'm disabling cleanup for now until I can think about it some
68 // more.
69 //
70 // NOTE: Due to popular demand, this has been re-enabled. It still has
71 // the problems mentioned above though, so I guess we'll see.
72 _gc.fullCollectNoStack(); // not really a 'collect all' -- still scans
73 // static data area, roots, and ranges.
74 _gc.Dtor();
75 }
76
77 extern (C) void gc_enable()
78 {
79 _gc.enable();
80 }
81
82 extern (C) void gc_disable()
83 {
84 _gc.disable();
85 }
86
87 extern (C) void gc_collect()
88 {
89 _gc.fullCollect();
90 }
91
92 extern (C) uint gc_getAttr( void* p )
93 {
94 return _gc.getAttr( p );
95 }
96
97 extern (C) uint gc_setAttr( void* p, uint a )
98 {
99 return _gc.setAttr( p, a );
100 }
101
102 extern (C) uint gc_clrAttr( void* p, uint a )
103 {
104 return _gc.clrAttr( p, a );
105 }
106
107 extern (C) void* gc_malloc( size_t sz, uint ba = 0 )
108 {
109 return _gc.malloc( sz, ba );
110 }
111
112 extern (C) void* gc_calloc( size_t sz, uint ba = 0 )
113 {
114 return _gc.calloc( sz, ba );
115 }
116
117 extern (C) void* gc_realloc( void* p, size_t sz, uint ba = 0 )
118 {
119 return _gc.realloc( p, sz, ba );
120 }
121
122 extern (C) size_t gc_extend( void* p, size_t mx, size_t sz )
123 {
124 return _gc.extend( p, mx, sz );
125 }
126
127 extern (C) void gc_free( void* p )
128 {
129 _gc.free( p );
130 }
131
132 extern (C) void* gc_addrOf( void* p )
133 {
134 return _gc.addrOf( p );
135 }
136
137 extern (C) size_t gc_sizeOf( void* p )
138 {
139 return _gc.sizeOf( p );
140 }
141
142 extern (C) BlkInfo gc_query( void* p )
143 {
144 return _gc.query( p );
145 }
146
147 extern (C) void gc_addRoot( void* p )
148 {
149 _gc.addRoot( p );
150 }
151
152 extern (C) void gc_addRange( void* p, size_t sz )
153 {
154 _gc.addRange( p, sz );
155 }
156
157 extern (C) void gc_removeRoot( void *p )
158 {
159 _gc.removeRoot( p );
160 }
161
162 extern (C) void gc_removeRange( void *p )
163 {
164 _gc.removeRange( p );
165 }