Hi all,

I want to create my own File in memory that I can pipe output to and read it in from another part of the program. I dont want to physically write data to disk, just store it in memory.

I've been trawling the documentation for the past while and the closest I can find is std.stdio.tmpfile(), however this always opens in "rb" and therefore isnt useful for me (I think!)

The reason I need to be able to make a File is because I want to send these IOstreams to std.processes spawnProcess().

Maybe I'm just looking in the wrong place?

Thanks in advance!

On Tuesday, 8 October 2013 at 20:25:42 UTC, Colin Grogan wrote:
> Hi all,
>
> I want to create my own File in memory that I can pipe output to and read it in from another part of the program. I dont want to physically write data to disk, just store it in memory.
>
> I've been trawling the documentation for the past while and the closest I can find is std.stdio.tmpfile(), however this always opens in "rb" and therefore isnt useful for me (I think!)
>
> The reason I need to be able to make a File is because I want to send these IOstreams to std.processes spawnProcess().
>
> Maybe I'm just looking in the wrong place?
>
> Thanks in advance!

I should have specified, this is std.stdio.File, not
std.stream.File.

On Tuesday, 8 October 2013 at 20:26:49 UTC, Colin Grogan wrote:
> On Tuesday, 8 October 2013 at 20:25:42 UTC, Colin Grogan wrote:
>> Hi all,
>>
>> I want to create my own File in memory that I can pipe output to and read it in from another part of the program. I dont want to physically write data to disk, just store it in memory.
>>
>> I've been trawling the documentation for the past while and the closest I can find is std.stdio.tmpfile(), however this always opens in "rb" and therefore isnt useful for me (I think!)
>>
>> The reason I need to be able to make a File is because I want to send these IOstreams to std.processes spawnProcess().
>>
>> Maybe I'm just looking in the wrong place?
>>
>> Thanks in advance!
>
> I should have specified, this is std.stdio.File, not
> std.stream.File.

Is this helpful?

import std.stdio;
import std.process;

void main() {
  auto p = pipe();
  p.write("This is test\n");
  p.close();
  foreach( line; p.readEnd.byLine ) {
    writeln(line);
  }
}

Thanks
Dan

On Tuesday, 8 October 2013 at 20:38:56 UTC, Daniel Davidson wrote:
> On Tuesday, 8 October 2013 at 20:26:49 UTC, Colin Grogan wrote:
>> On Tuesday, 8 October 2013 at 20:25:42 UTC, Colin Grogan wrote:
>>> Hi all,
>>>
>>> I want to create my own File in memory that I can pipe output to and read it in from another part of the program. I dont want to physically write data to disk, just store it in memory.
>>>
>>> I've been trawling the documentation for the past while and the closest I can find is std.stdio.tmpfile(), however this always opens in "rb" and therefore isnt useful for me (I think!)
>>>
>>> The reason I need to be able to make a File is because I want to send these IOstreams to std.processes spawnProcess().
>>>
>>> Maybe I'm just looking in the wrong place?
>>>
>>> Thanks in advance!
>>
>> I should have specified, this is std.stdio.File, not
>> std.stream.File.
>
> Is this helpful?
>
> import std.stdio;
> import std.process;
>
> void main() {
>   auto p = pipe();
>   p.write("This is test\n");
>   p.close();
>   foreach( line; p.readEnd.byLine ) {
>     writeln(line);
>   }
> }
>
> Thanks
> Dan

It does!
I see the Pipeing functionality in std.process now. Guess I should have looked harder :)

Thanks.