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// Copyright 2011 Google Inc. All Rights Reserved.
// Author: cshapiro@google.com (Carl Shapiro)
#ifndef ART_SRC_SPACE_H_
#define ART_SRC_SPACE_H_
#include "src/globals.h"
#include "src/macros.h"
namespace art {
class Object;
// A space contains memory allocated for managed objects.
class Space {
public:
static Space* Create(size_t startup_size, size_t maximum_size);
~Space();
Object* AllocWithGrowth(size_t num_bytes);
Object* AllocWithoutGrowth(size_t num_bytes);
size_t Free(void* ptr);
void Trim();
size_t MaxAllowedFootprint();
void Grow(size_t num_bytes);
byte* GetBase() {
return base_;
}
size_t Size() {
return limit_ - base_;
}
private:
Space(size_t startup_size, size_t maximum_size) :
mspace_(NULL),
base_(NULL),
startup_size_(startup_size),
maximum_size_(maximum_size) {
}
bool Init();
void* CreateMallocSpace(void* base, size_t startup_size,
size_t maximum_size);
static void DontNeed(void* start, void* end, void* num_bytes);
void* mspace_;
byte* base_;
byte* limit_;
size_t startup_size_;
size_t maximum_size_;
DISALLOW_IMPLICIT_CONSTRUCTORS(Space);
};
} // namespace art
#endif // ART_SRC_SPACE_H_
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