class Allocator

Class do easily allocate/deallocate memory in Torch.

Public Methods

Allocator()

Create a new allocator

void* alloc(size_t size, int object_style=0)

Returns size bytes of allocated memory.

void* realloc(void* ptr, size_t size)

Reallocate a part of the memory which has been already allocated with alloc (and object_style=0).

void free(void* ptr)

Force given pointer to memory to be freed now.

void retain(void* ptr, int object_style=0)

Tells to the allocator that it should handle the memory given by ptr.

int release(void* ptr)

Tells to the allocator to stop taking in account the memory given by ptr.

void steal(void* ptr, Allocator* allocator)

Handles the memory given by ptr which was previouly handled by allocator.

void steal(Allocator* allocator)

Steals all pointers contained in allocator

AllocatorNode* isMine(void* ptr)

Returns true iff ptr is handled by the allocator

void freeAll()

Force all pointers contained in the allocator to be freed now.

static void* sysAlloc(int size)

System allocation.

static void* sysRealloc(void* ptr, int size)

System reallocation.

Documentation

Class do easily allocate/deallocate memory in Torch. The memory allocated by an allocator will be destroyed when the allocator will be destroyed.

Allocator()

Create a new allocator

void* alloc(size_t size, int object_style=0)

Returns size bytes of allocated memory.

• If object_style is 0, the allocated memory is considered as if it wasn't for an object. At the destruction of the allocator the memory will be freed, and that's all.
• If 1, the Object destructor will be called at the destruction and the memory will be freed.
• If 2, the destructor will be called, but the memory won't be freed.

void* realloc(void* ptr, size_t size)

Reallocate a part of the memory which has been already allocated with alloc (and object_style=0). Same behaviour as the realloc() system function.

void free(void* ptr)

Force given pointer to memory to be freed now. It considers the object_style given by alloc() and calls the Object destructor, if needed.

void retain(void* ptr, int object_style=0)

Tells to the allocator that it should handle the memory given by ptr. Take in account the object_style.

int release(void* ptr)

Tells to the allocator to stop taking in account the memory given by ptr. The memory will not be released.

void steal(void* ptr, Allocator* allocator)

Handles the memory given by ptr which was previouly handled by allocator. allocator looses the control of this memory

void steal(Allocator* allocator)

Steals all pointers contained in allocator

AllocatorNode* isMine(void* ptr)

Returns true iff ptr is handled by the allocator

void freeAll()

Force all pointers contained in the allocator to be freed now. It considers the object_style given by alloc() and calls the Object destructor, if needed.

static void* sysAlloc(int size)

System allocation. As system malloc function, but do an error if there is no more memory.

static void* sysRealloc(void* ptr, int size)

System reallocation. As system realloc function, but do an error if there is no more memory.

This class has no child classes.

Author:

Ronan Collobert (collober@idiap.ch)

See Also:

Object

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