From 2c1ec6771bd09266308686ab13ca32e2aa73da49 Mon Sep 17 00:00:00 2001 From: Michael Bebenita Date: Tue, 17 Aug 2010 23:40:07 -0700 Subject: Lots of changes around memory managment in the Runtime. Added memory regions and fixed race caused by calling rust_srv::malloc() from multiple threads when sending messages. --- src/rt/memory_region.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 src/rt/memory_region.h (limited to 'src/rt/memory_region.h') diff --git a/src/rt/memory_region.h b/src/rt/memory_region.h new file mode 100644 index 00000000..3411d867 --- /dev/null +++ b/src/rt/memory_region.h @@ -0,0 +1,37 @@ +/* + * The Rust runtime uses memory regions to provide a primitive level of + * memory management and isolation between tasks, and domains. + * + * TODO: Implement a custom lock-free malloc / free instead of relying solely + * on the standard malloc / free. + */ + +#ifndef MEMORY_REGION_H +#define MEMORY_REGION_H + +#include "sync/spin_lock.h" + +class rust_srv; + +class memory_region { +private: + rust_srv *_srv; + memory_region *_parent; + size_t _live_allocations; + array_list _allocation_list; + const bool _synchronized; + spin_lock _lock; +public: + enum memory_region_type { + LOCAL = 0x1, SYNCHRONIZED = 0x2 + }; + memory_region(rust_srv *srv, bool synchronized); + memory_region(memory_region *parent); + void *malloc(size_t size); + void *calloc(size_t size); + void *realloc(void *mem, size_t size); + void free(void *mem); + virtual ~memory_region(); +}; + +#endif /* MEMORY_REGION_H */ -- cgit v1.2.3