[Haskell] reader-like IO, parents of threads
john at repetae.net
Tue Oct 18 18:46:56 EDT 2005
On Tue, Oct 18, 2005 at 07:12:13PM +0100, Frederik Eaton wrote:
> (Pthreads also has support for "thread-specific data":
> -- Function: int pthread_setspecific (pthread_key_t KEY, const void
> `pthread_setspecific' changes the value associated with KEY in the
> calling thread, storing the given POINTER instead.
> If there is no such key KEY, it returns `EINVAL'. Otherwise it
> returns 0.
> -- Function: void * pthread_getspecific (pthread_key_t KEY)
> `pthread_getspecific' returns the value currently associated with
> KEY in the calling thread.
> If there is no such key KEY, it returns `NULL'.
in gcc you can create (faster) thread local storage with the __thread
keyword. as in
__thread int foo;
means that foo will be local to each thread.
John Meacham - ⑆repetae.net⑆john⑈
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