pthread_getspecific.3 [plain text]
.\" Copyright (c) 1996 John Birrell <email@example.com>.
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.\" $FreeBSD: src/lib/libc_r/man/pthread_getspecific.3,v 18.104.22.168 2001/08/17 15:42:51 ru Exp $
.Dd April 4, 1996
.Dt PTHREAD_GETSPECIFIC 3
.Nd get a thread-specific data value
.Fd #include <pthread.h>
.Ft void *
.Fa "pthread_key_t key"
function returns the value that is currently bound to the specified
.Fa key ,
on behalf of the calling thread.
The effect of calling
value that was not obtained from
.Fn pthread_key_create ,
or after a
has been deleted with
.Fn pthread_key_delete ,
may be called from a thread-specific data destructor function.
.Sh RETURN VALUES
function will return the thread-specific data value associated with the given
.Fa key .
If no thread-specific data value is associated with
.Fa key ,
the value NULL is returned.
.Sh SEE ALSO
.Xr pthread_key_create 3 ,
.Xr pthread_key_delete 3 ,
.Xr pthread_setspecific 3
.St -p1003.1-96 .