Mercurial > projects > ldc
view druntime/src/gc/basic/gc.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
---|---|
date | Tue, 02 Jun 2009 17:43:06 +0100 |
parents | |
children |
line wrap: on
line source
/** * Contains the external GC interface. * * Copyright: Copyright Digital Mars 2005 - 2009. * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. * Authors: Walter Bright, Sean Kelly * * Copyright Digital Mars 2005 - 2009. * Distributed under the Boost Software License, Version 1.0. * (See accompanying file LICENSE_1_0.txt or copy at * http://www.boost.org/LICENSE_1_0.txt) */ module gc.gc; private { import gc.gcx; import gc.gcstats; import core.stdc.stdlib; version = GCCLASS; version( GCCLASS ) alias GC gc_t; else alias GC* gc_t; __gshared gc_t _gc; extern (C) void thread_init(); struct Proxy { extern (C) void function() gc_enable; extern (C) void function() gc_disable; extern (C) void function() gc_collect; extern (C) void function() gc_minimize; extern (C) uint function(void*) gc_getAttr; extern (C) uint function(void*, uint) gc_setAttr; extern (C) uint function(void*, uint) gc_clrAttr; extern (C) void* function(size_t, uint) gc_malloc; extern (C) void* function(size_t, uint) gc_calloc; extern (C) void* function(void*, size_t, uint ba) gc_realloc; extern (C) size_t function(void*, size_t, size_t) gc_extend; extern (C) size_t function(size_t) gc_reserve; extern (C) void function(void*) gc_free; extern (C) void* function(void*) gc_addrOf; extern (C) size_t function(void*) gc_sizeOf; extern (C) BlkInfo function(void*) gc_query; extern (C) void function(void*) gc_addRoot; extern (C) void function(void*, size_t) gc_addRange; extern (C) void function(void*) gc_removeRoot; extern (C) void function(void*) gc_removeRange; } __gshared Proxy pthis; __gshared Proxy* proxy; void initProxy() { pthis.gc_enable = &gc_enable; pthis.gc_disable = &gc_disable; pthis.gc_collect = &gc_collect; pthis.gc_minimize = &gc_minimize; pthis.gc_getAttr = &gc_getAttr; pthis.gc_setAttr = &gc_setAttr; pthis.gc_clrAttr = &gc_clrAttr; pthis.gc_malloc = &gc_malloc; pthis.gc_calloc = &gc_calloc; pthis.gc_realloc = &gc_realloc; pthis.gc_extend = &gc_extend; pthis.gc_reserve = &gc_reserve; pthis.gc_free = &gc_free; pthis.gc_addrOf = &gc_addrOf; pthis.gc_sizeOf = &gc_sizeOf; pthis.gc_query = &gc_query; pthis.gc_addRoot = &gc_addRoot; pthis.gc_addRange = &gc_addRange; pthis.gc_removeRoot = &gc_removeRoot; pthis.gc_removeRange = &gc_removeRange; } } extern (C) void gc_init() { version (GCCLASS) { void* p; ClassInfo ci = GC.classinfo; p = malloc(ci.init.length); (cast(byte*)p)[0 .. ci.init.length] = ci.init[]; _gc = cast(GC)p; } else { _gc = cast(GC*) calloc(1, GC.sizeof); } _gc.initialize(); // NOTE: The GC must initialize the thread library // before its first collection. thread_init(); initProxy(); } extern (C) void gc_term() { // NOTE: There may be daemons threads still running when this routine is // called. If so, cleaning memory out from under then is a good // way to make them crash horribly. This probably doesn't matter // much since the app is supposed to be shutting down anyway, but // I'm disabling cleanup for now until I can think about it some // more. // // NOTE: Due to popular demand, this has been re-enabled. It still has // the problems mentioned above though, so I guess we'll see. _gc.fullCollectNoStack(); // not really a 'collect all' -- still scans // static data area, roots, and ranges. _gc.Dtor(); } extern (C) void gc_enable() { if( proxy is null ) return _gc.enable(); return proxy.gc_enable(); } extern (C) void gc_disable() { if( proxy is null ) return _gc.disable(); return proxy.gc_disable(); } extern (C) void gc_collect() { if( proxy is null ) return _gc.fullCollect(); return proxy.gc_collect(); } extern (C) void gc_minimize() { if( proxy is null ) return _gc.minimize(); return proxy.gc_minimize(); } extern (C) uint gc_getAttr( void* p ) { if( proxy is null ) return _gc.getAttr( p ); return proxy.gc_getAttr( p ); } extern (C) uint gc_setAttr( void* p, uint a ) { if( proxy is null ) return _gc.setAttr( p, a ); return proxy.gc_setAttr( p, a ); } extern (C) uint gc_clrAttr( void* p, uint a ) { if( proxy is null ) return _gc.clrAttr( p, a ); return proxy.gc_clrAttr( p, a ); } extern (C) void* gc_malloc( size_t sz, uint ba = 0 ) { if( proxy is null ) return _gc.malloc( sz, ba ); return proxy.gc_malloc( sz, ba ); } extern (C) void* gc_calloc( size_t sz, uint ba = 0 ) { if( proxy is null ) return _gc.calloc( sz, ba ); return proxy.gc_calloc( sz, ba ); } extern (C) void* gc_realloc( void* p, size_t sz, uint ba = 0 ) { if( proxy is null ) return _gc.realloc( p, sz, ba ); return proxy.gc_realloc( p, sz, ba ); } extern (C) size_t gc_extend( void* p, size_t mx, size_t sz ) { if( proxy is null ) return _gc.extend( p, mx, sz ); return proxy.gc_extend( p, mx, sz ); } extern (C) size_t gc_reserve( size_t sz ) { if( proxy is null ) return _gc.reserve( sz ); return proxy.gc_reserve( sz ); } extern (C) void gc_free( void* p ) { if( proxy is null ) return _gc.free( p ); return proxy.gc_free( p ); } extern (C) void* gc_addrOf( void* p ) { if( proxy is null ) return _gc.addrOf( p ); return proxy.gc_addrOf( p ); } extern (C) size_t gc_sizeOf( void* p ) { if( proxy is null ) return _gc.sizeOf( p ); return proxy.gc_sizeOf( p ); } extern (C) BlkInfo gc_query( void* p ) { if( proxy is null ) return _gc.query( p ); return proxy.gc_query( p ); } // NOTE: This routine is experimental. The stats or function name may change // before it is made officially available. extern (C) GCStats gc_stats() { if( proxy is null ) { GCStats stats = void; _gc.getStats( stats ); return stats; } // TODO: Add proxy support for this once the layout of GCStats is // finalized. //return proxy.gc_stats(); return GCStats.init; } extern (C) void gc_addRoot( void* p ) { if( proxy is null ) return _gc.addRoot( p ); return proxy.gc_addRoot( p ); } extern (C) void gc_addRange( void* p, size_t sz ) { if( proxy is null ) return _gc.addRange( p, sz ); return proxy.gc_addRange( p, sz ); } extern (C) void gc_removeRoot( void* p ) { if( proxy is null ) return _gc.removeRoot( p ); return proxy.gc_removeRoot( p ); } extern (C) void gc_removeRange( void* p ) { if( proxy is null ) return _gc.removeRange( p ); return proxy.gc_removeRange( p ); } extern (C) Proxy* gc_getProxy() { return &pthis; } export extern (C) void gc_setProxy( Proxy* p ) { if( proxy !is null ) { // TODO: Decide if this is an error condition. } proxy = p; foreach( r; _gc.rootIter ) proxy.gc_addRoot( r ); foreach( r; _gc.rangeIter ) proxy.gc_addRange( r.pbot, r.ptop - r.pbot ); } export extern (C) void gc_clrProxy() { foreach( r; _gc.rangeIter ) proxy.gc_removeRange( r.pbot ); foreach( r; _gc.rootIter ) proxy.gc_removeRoot( r ); proxy = null; }