Thanks, Matt.
Actually, I did mean thread-local storage, which is a language extension
supported by some compilers. These compilers probably use
thread-specific data to implement thread-local storage.
I can use thread-specific data to accomplish what I want, but it's a
little more "bulky." With thread-local storage, I simply declare a
global variable with a special attribute (e.g., __thread or
__declspec(thread)). Every thread gets its own copy. To access a copy,
the thread simply refers the it like any other global variable.
With thread-specific data, I have to call pthread_key_create() to create
the variable and pthread_set/getspecific() to access it.
I was hoping g++ supported this extension as well.
If I do use pthread_key_create(), does my main() thread also get its own
copy of the data, or only threads created by pthread_create()?
Thanks.
Terry
-----Original Message-----
From: Matt Fahrner [mailto:[EMAIL PROTECTED]]
Sent: Thursday, April 26, 2001 3:19 PM
To: [EMAIL PROTECTED]
Subject: Re: Thread-local storage
If you mean "thread specific" data then POSIX threads (pthreads) has
"pthread_key_create()" and "pthread_setspecific()" to do so....
See the man for it.
- Matt
Terry Gin wrote:
>
> I'm porting an app that currently runs on both Win32 and HP-UX to
Linux.
> MSVC++ supports thread-local storage via the __declspec(thread)
> attribute, and HP-UX's aCC supports it via the __thread attribute.
Does
> Linux (g++) have similar mechanism that supports thread-local storage?
>
> Thanks in advance.
>
> Terry
>
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