Re: Thread_Id

[RVK <rvk@prodmail.net>]

Arjan van de Ven wrote:

>On Thu, 2005-07-14 at 11:03 +0530, RVK wrote:
>  
>
>>Robert Hancock wrote:
>>
>>    
>>
>>>RVK wrote:
>>>
>>>      
>>>
>>>>Can anyone suggest me how to get the threadId using 2.6.x kernels.
>>>>pthread_self() does not work and returns some -ve integer.
>>>>        
>>>>
>>>What do you mean, negative integer? It's not an integer, it's a
>>>pthread_t, you're not even supposed to look at it..
>>>      
>>>
>>What is pthread_t inturn defined to ? pthread_self for 2.4.x thread
>>libraries return +ve number(as u have a objection me calling it as
>>integer :-))
>>    
>>
>
>it doesn't return a number it returns a pointer ;) or a floating point
>number. You don't know :)
>
>what it returns is a *cookie*. A cookie that you can only use to pass
>back to various pthread functions.
>
>  
>
Hahaha......common. Please clarify following....
SYNOPSIS
       #include <pthread.h>

       pthread_t pthread_self(void);

DESCRIPTION
       pthread_self return the thread identifier for the calling thread.

bits/pthreadtypes.h:150:typedef unsigned long int pthread_t;

rvk

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