ThreadDetach
Releases a thread handle without waiting for the thread to finish
Syntax
`
Declare Sub ThreadDetach ( ByVal id As Any Ptr )
`
Usage
`
#include "fbthread.bi"
ThreadDetach( id )
`
Parameters
`id`
`Any Ptr` handle of a thread created by `ThreadCreate` or `ThreadCall`
Description
ThreadDetach releases resources associated with the thread handle returned by `ThreadCreate` or `ThreadCall`. The thread handle will be destroyed by ThreadDetach and cannot be used anymore.
Unlike `ThreadWait`, ThreadDetach does not wait for the thread to finish and thread execution continues independently. Any allocated resources will be freed once the thread exits.
In order to avoid memory leaks, the safe way to end a thread is to always signal to it that it must end, and then call `ThreadWait` on that thread except if ThreadDetach has previously been called.
Note: As ThreadDetach destroys the thread handle, `ThreadWait` can no longer check for the thread ending, and even the use of `ThreadWait` becomes unpredictable (may crash the program). The use between `ThreadWait` and ThreadDetach must be exclusive.
But mutexes and conditional variables can also be used with detached threads.
Example
`
#include "fbthread.bi"
Sub mythread( ByVal param As Any Ptr )
Print "hi!"
End Sub
Dim As Any Ptr thread = ThreadCreate( @mythread )
ThreadDetach( thread )
'' or
ThreadDetach( ThreadCreate( @mythread ) )
Sleep
`
Dialect Differences

- Threading is not allowed in the -lang qb dialect.

Platform Differences

- ThreadDetach is not available with the DOS version of FreeBASIC, because multithreading is not supported by DOS kernel nor the used extender.

Differences from QB

- New to FreeBASIC

See also

- `ThreadWait`
- `ThreadCreate`