[#BloombergLP-ball-AsyncFileObserver-2constructor-0c]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/AsyncFileObserver.adoc[AsyncFileObserver]::AsyncFileObserver
:relfileprefix: ../../../
:mrdocs:

Create an async file observer that asynchronously publishes log records to `stdout` if their severity is at least as severe as the specified `stdoutThreshold` level, and has file logging initially disabled&period; The timestamp attribute of published records is written in local time if the specified `publishInLocalTime` flag is `true`, and in UTC time otherwise&period; Optionally specify a `basicAllocator` used to supply memory&period; If `basicAllocator` is 0, the currently installed default allocator is used&period; Records received by the `publish` method are appended to a queue having a maximum (fixed) length of 8192, and published later by an independent publication thread&period; All records received while the queue is full are discarded&period; (See &lcub;Log Record Queue&rcub; for further information&period;) Note that independent default record formats are in effect for `stdout` and file logging (see `setLogFormat`)&period;

== Synopsis

Declared in `&lt;ball&lowbar;asyncfileobserver&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
AsyncFileObserver(
    xref:BloombergLP/ball/Severity/Level.adoc[Severity::Level] stdoutThreshold,
    bool publishInLocalTime,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----


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