[#subprocess-input]
= xref:subprocess.adoc[subprocess]::input
:relfileprefix: ../
:mrdocs:

Option to specify the input channel for the child process. It can be: 1. An already open file descriptor. 2. A file name. 3. IOTYPE. Usual a PIPE

== Synopsis

Declared in `<util/subprocess.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct input;
----

== Description

Eg: input{PIPE} OR in case of redirection, output of another Popen input{popen.output()}

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:subprocess/input/2constructor-0b.adoc[`input`]         [.small]#[constructor]#
| Constructors
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:subprocess/input/rd_ch_.adoc[`rd_ch_`] 
| Read end of the channel, or ‐1 if unused.
| xref:subprocess/input/wr_ch_.adoc[`wr_ch_`] 
| Write end of the channel, or ‐1 if unused.
|===



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