# How can I use 2 components with picoserver socket sync interface

**URL:** https://sel4.discourse.group/t/how-can-i-use-2-components-with-picoserver-socket-sync-interface/404
**Category:** seL4 kernel
**Created:** [September 1, 2021, 10:00am UTC](https://sel4.discourse.group/t/how-can-i-use-2-components-with-picoserver-socket-sync-interface/404 "2021-09-01T10:00:50Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![maidoumaizi](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@maidoumaizi](https://sel4.discourse.group/u/maidoumaizi)
#### Post date: [September 1, 2021, 10:00am UTC](https://sel4.discourse.group/t/how-can-i-use-2-components-with-picoserver-socket-sync-interface/404/1 "2021-09-01T10:00:50Z")

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I define 2 components like this  
 ![image](https://global.discourse-cdn.com/free1/uploads/sel4/original/1X/6fa14cdd184e067ea024bbe38ba1b35e5ce636c8.png)  
but in fact, in notify\_client function, it always call pico\_control\_emit(1), so we can not signal other process

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<div class="post-metadata">

### Author: ![maidoumaizi](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@maidoumaizi](https://sel4.discourse.group/u/maidoumaizi)
#### Post date: [September 1, 2021, 10:01am UTC](https://sel4.discourse.group/t/how-can-i-use-2-components-with-picoserver-socket-sync-interface/404/2 "2021-09-01T10:01:22Z")

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add a picture  
 ![image](https://global.discourse-cdn.com/free1/uploads/sel4/original/1X/b1378868df8012b004bef882ac8f3f9cdd8f79f9.png)