Mercurial > projects > ldc
view dmd2/mem.h @ 1317:4099548c80e0
Allocate objects on the stack if they (a) don't have a destructor, and
(b) don't override the delete operator (on top of the regular conditions for
stack allocation that also apply to arrays, structs, etc.).
The "no destructor" clause is not strictly necessary, but calling them at the
right time would be tricky to say the least; it would involve, among other
things, "manually" inserting a try-finally block around anything that might
throw exceptions not caught in the current function.
Note: objects with custom new operators are automatically ignored because they
don't use the regular allocation runtime call, so there's no need to pay special
attention to them.
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Sat, 09 May 2009 00:50:15 +0200 |
parents | f04dde6e882c |
children |
line wrap: on
line source
// Copyright (C) 2000-2001 by Chromium Communications // All Rights Reserved #ifndef ROOT_MEM_H #define ROOT_MEM_H #include <stddef.h> // for size_t typedef void (*FINALIZERPROC)(void* pObj, void* pClientData); struct GC; // thread specific allocator struct Mem { GC *gc; // pointer to our thread specific allocator Mem() { gc = NULL; } void init(); // Derive from Mem to get these storage allocators instead of global new/delete void * operator new(size_t m_size); void * operator new(size_t m_size, Mem *mem); void * operator new(size_t m_size, GC *gc); void operator delete(void *p); void * operator new[](size_t m_size); void operator delete[](void *p); char *strdup(const char *s); void *malloc(size_t size); void *malloc_uncollectable(size_t size); void *calloc(size_t size, size_t n); void *realloc(void *p, size_t size); void free(void *p); void free_uncollectable(void *p); void *mallocdup(void *o, size_t size); void error(); void check(void *p); // validate pointer void fullcollect(); // do full garbage collection void fullcollectNoStack(); // do full garbage collection, no scan stack void mark(void *pointer); void addroots(char* pStart, char* pEnd); void removeroots(char* pStart); void setFinalizer(void* pObj, FINALIZERPROC pFn, void* pClientData); void setStackBottom(void *bottom); GC *getThreadGC(); // get apartment allocator for this thread }; extern Mem mem; #endif /* ROOT_MEM_H */