[#Transport-MarkBytesSent]
= xref:Transport.adoc[Transport]::MarkBytesSent
:relfileprefix: ../
:mrdocs:

Report how many bytes returned by the last GetBytesToSend() have been sent.

== Synopsis

Declared in `<net.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
MarkBytesSent(size_t bytes_sent) noexcept = 0;
----

== Description

bytes_sent cannot exceed to_send.size() of the last GetBytesToSend() result.

If bytes_sent=0, this call has no effect.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bytes_sent* [in]
| number of bytes actually written to the wire.
|===


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