BloombergLP::bdlbb::Blob

In‐core container for BlobBuffer objects.

Synopsis

Declared in <bdlbb_blob.h>

class Blob;

Description

Blob is an in‐core container for BlobBuffer objects. This class is exception‐neutral with no guarantee of rollback: if an exception is thrown during the invocation of a method on a pre‐existing instance, the container is left in a valid state, but its value is undefined. In no event is memory leaked.

Member Functions

Name

Description

Blob [constructor]

Constructors

~Blob [destructor]

Destroy this blob.

Assignment operators

Return the allocator used by this object to supply memory.

appendBuffer overloads

appendDataBuffer

appendDataBuffer overloads

Return a reference to the non‐modifiable blob buffer at index.

Return the factory used by this object.

insertBuffer overloads

lastDataBufferLength

Return the length of the last blob buffer in this blob, or 0 if this blob is of 0 length.

Return the length of this blob.

moveAndAppendDataBuffers

Append to this blob by moving the data buffers held by srcBlob.

Replace this blob's buffers by moving all buffers from srcBlob.

moveDataBuffers

Replace this blob's buffers by moving the data buffers from srcBlob.

Return the number of blob buffers held by this blob.

numDataBuffers

Return the number of blob buffers containing data in this blob.

prependDataBuffer

prependDataBuffer overloads

Remove all blob buffers from this blob, and set its length to 0.

Remove the buffer at the specified index from this blob.

removeBuffers

Remove the specified numBuffers starting at the specified index.

removeUnusedBuffers

Remove any unused capacity buffers from this blob.

replaceDataBuffer

Replace the data buffer at the specified index with buffer.

reserveBufferCapacity

Allocate capacity to store at least the specified numBuffers buffers.

Set the length of this blob to the specified length.

Efficiently exchange the value of this object with that of other.

swapBufferRaw

Swap the blob buffer at the specified index with srcBuffer.

Return the sum of the sizes of all blob buffers in this blob (i.e., the capacity of this blob).

trimLastDataBuffer

Trim the last data buffer down to lastDataBufferLength().

Friends

Name

Description

BloombergLP::bdlbb::operator!=

Return true if the specified lhs and rhs blobs do not have the same value.

BloombergLP::bdlbb::operator==

Return true if the specified lhs and rhs blobs have the same value.

Non-Member Functions

Name

Description

Efficiently exchange the values of the specified a and b objects.

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