[#BloombergLP-bdlma-ConcurrentFixedPool-2constructor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlma.adoc[bdlma]::xref:BloombergLP/bdlma/ConcurrentFixedPool.adoc[ConcurrentFixedPool]::ConcurrentFixedPool
:relfileprefix: ../../../
:mrdocs:

Create a fixed‐size pool of uniformly sized memory blocks.

== Synopsis

Declared in `<bdlma_concurrentfixedpool.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
ConcurrentFixedPool(
    int objectSize,
    int poolSize,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Create a memory pool that returns memory of the specified `objectSize` for each invocation of the `allocate` method. Configure this pool to support allocation of up to the specified `poolSize` number of memory blocks. The largest supported `poolSize` is 33554431. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used. The behavior is undefined unless `0 < objectSize`, `0 < poolSize`, and `0x1FFFFFF >= poolSize`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *objectSize*
| size in bytes of each pooled memory block
| *poolSize*
| maximum number of blocks that may be allocated
| *basicAllocator*
| memory allocator; null uses the default
|===


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