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fio: provide access to stdin/stdout/stderr #1338

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kostja opened this issue Feb 18, 2016 · 8 comments
Open

fio: provide access to stdin/stdout/stderr #1338

kostja opened this issue Feb 18, 2016 · 8 comments
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feature A new functionality good first issue Good for newcomers
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wishlist

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@kostja
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kostja commented Feb 18, 2016

Make it possible to read stdin/stdout/stderr using fio API. Update the documentation.
@kostja kostja added this to the 1.6.9 milestone Feb 18, 2016
@kostja kostja added the feature A new functionality label Feb 18, 2016
@rtsisyk
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rtsisyk commented Apr 1, 2016

Who need this feature in 1.6.x? Please consider to move to 1.7.x

@rtsisyk
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rtsisyk commented Jul 21, 2016

There is no customer => wishlist

@rtsisyk rtsisyk modified the milestones: wishlist, 1.6.9 Jul 21, 2016
@kostja kostja added the good first issue Good for newcomers label Feb 7, 2018
@upkrf
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upkrf commented Oct 9, 2019

Our team wants this feature ASAP!

@olegrok
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olegrok commented Oct 9, 2019

quite strange way (read as workaround) to do this

fd = fio.open('/dev/null')
fd.fh = 2 -- or 1 for stdout
tarantool> fd:write('test')
test---
- true
...

@igormunkin
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@olegrok, it looks more like a bug than a workaround. IMHO, fd.fh field ought to be immutable.
@kyukhin, I think it have to be fixed.

@printercu
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@cyrillos looks like non-blocking pipe io from #4031 can be useful for this one.

@cyrillos cyrillos self-assigned this Dec 20, 2019
@printercu
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@igormunkin I think even if io.stdin:read will be fixed to be non-blocking, there should be fio interface for this standard descriptors because fio and io have different api. Modules like csv work only with fio.

olegrok added a commit that referenced this issue Apr 4, 2020
@olegrok
fio: provide access to stdin/stdout/stderr
d3e581f 
This patch introduces fio API for interaction with
stdin/stdout/stderr streams.

Closes #1338

@TarantoolBot document
Title: fio provides access to stdin/stdout/stderr

Now access to standard streams is available via:
  * fio.stdin
  * fio.stdout
  * fio.stderr

Each of this streams have usual fio file interface.

Example:
```lua
fio.stdin:read(5) -- read 5 bytes from stdin
fio.stdout:write("Hello") -- write "Hello" to stdout
fio.stderr:write("Error") -- write "Error" to stderr
```
olegrok added a commit that referenced this issue Apr 4, 2020
@olegrok
fio: provide access to stdin/stdout/stderr
e15cd40 
This patch introduces fio API for interaction with
stdin/stdout/stderr streams.

Closes #1338

@TarantoolBot document
Title: fio provides access to stdin/stdout/stderr

Now access to standard streams is available via:
  * fio.stdin
  * fio.stdout
  * fio.stderr

Each of this streams have usual fio file interface.

Example:
```lua
fio.stdin:read(5) -- read 5 bytes from stdin
fio.stdout:write("Hello") -- write "Hello" to stdout
fio.stderr:write("Error") -- write "Error" to stderr
```
@olegrok olegrok closed this as completed Nov 8, 2021
@olegrok olegrok reopened this Nov 10, 2021
@olegrok
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olegrok commented Nov 10, 2021

Sorry, it was a mistake. Reopened.

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@cyrillos @kostja @printercu @rtsisyk @upkrf @igormunkin @olegrok