BloombergLP::bslma::SequentialAllocator

Name

Description

ManagedAllocator

Provide a protocol for allocators with the ability to release all memory currently allocated through the protocol back to the memory supplier of the derived concrete allocator object.

Name

Description

size_type

Alias for an unsigned integral type capable of representing the number of bytes in this platform's virtual address space.

Name

Description

SequentialAllocator [constructor]

Constructors

~SequentialAllocator [destructor] [virtual]

Destroy this sequential allocator and release all associated memory.

operator=

allocate

allocate overloads

allocateAndExpand

allocateAndExpand overloads

deallocate

This method has no effect for this allocator.

deleteObject

deleteObject overloads

deleteObjectRaw

deleteObjectRaw overloads

expand

expand overloads

is_equal

release [virtual]

Release all memory currently allocated through this allocator.

reserveCapacity [virtual]

Reserve sufficient memory to satisfy allocation requests for at least the specified numBytes without replenishment (i.e., without internal allocation). The behavior is undefined unless 0 <= numBytes.

truncate

Reduce the amount of memory allocated at the specified address.

Name

Description

throwBadAlloc

Throw std::bad_alloc if exceptions are enabled or abort the program otherwise. Derived classes and helper functions will typically call this function when they are unable to satisfy an allocation request. This function never returns.

Name

Description

do_allocate [virtual]

Return a newly allocated block of memory of (at least) the specified positive bytes and having at least the specified alignment. Unless overriden in a derived class, the return value is this‐>allocate(bytes). If this allocator cannot return the requested number of bytes or cannot satisfy the alignment request, then it will throw a std::bad_alloc exception in an exception‐enabled build, or else will abort the program in a non‐exception build. Unless overriden in a derived class, this function will forward the allocation request to the allocate virtual function, padding bytes and adjusting the return value as necessary to ensure sufficient alignment. Note that if bytes is 0, the same non‐null value will be returned every time.

do_deallocate [virtual]

Return the memory block at the specified p address, having the specified bytes and specified alignment, back to this allocator. Unless overriden in a derived class, this function will forward the deallocation request to the deallocate virtual function, padding bytes and adjusting p as necessary to account for alignment values other than the natural alignment for an object of size bytes. The behavior is undefined unless address is a block allocated from this allocator object using the same bytes and alignment and not already deallocated.

do_is_equal [virtual]

Return true if this allocator is equal to the specified other allocator, meaning (at least) that a memory block allocated by one can be deallocated by the other; otherwise return false. Unless overriden, this method returns this == &other.