1 .\" $NetBSD: pthread_setspecific.3,v 1.2 2003/06/08 06:44:34 thorpej Exp $
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26 .\" Copyright (c) 1996 John Birrell <jb@cimlogic.com.au>.
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56 .\" $FreeBSD: src/lib/libpthread/man/pthread_setspecific.3,v 1.12 2002/09/16 19:29:29 mini Exp $
59 .Dt PTHREAD_SETSPECIFIC 3
62 .Nm pthread_setspecific
63 .Nd set a thread-specific data value
69 .Fn pthread_setspecific "pthread_key_t key" "const void *value"
72 .Fn pthread_setspecific
73 function associates a thread-specific value with a
75 obtained via a previous call to
76 .Fn pthread_key_create .
77 Different threads have different values bound to each key.
79 typically pointers to blocks of dynamically allocated memory that have been
80 reserved for use by the calling thread.
83 .Fn pthread_setspecific
84 with a key value not obtained from
85 .Fn pthread_key_create
89 .Fn pthread_key_delete
92 .Fn pthread_setspecific
93 may be called from a thread-specific data destructor function, however this
94 may result in lost storage or infinite loops.
97 .Fn pthread_setspecific
98 function will return zero.
99 Otherwise an error number will be returned to
102 .Fn pthread_setspecific
106 Insufficient memory exists to associate the value with the
110 .Fn pthread_setspecific
119 .Xr pthread_getspecific 3 ,
120 .Xr pthread_key_create 3 ,
121 .Xr pthread_key_delete 3
123 .Fn pthread_setspecific