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PTHREAD_GETSPECIFIC (3) | C library functions | Unix Manual Pages | :man

NAME

pthread_getspecific - get a thread-specific data value

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards

LIBRARY


.Lb libc_r
.Lb libpthread
.Lb libthr

SYNOPSIS


.In pthread.h void * pthread_getspecific "pthread_key_t key"

DESCRIPTION

The pthread_getspecific function returns the value currently bound to the specified key on behalf of the calling thread.

The effect of calling pthread_getspecific with a key value not obtained from pthread_key_create or after key has been deleted with pthread_key_delete is undefined.

The pthread_getspecific function may be called from a thread-specific data destructor function.

RETURN VALUES

The pthread_getspecific function will return the thread-specific data value associated with the given key. If no thread-specific data value is associated with key, then the value NULL is returned.

ERRORS

None.

SEE ALSO

pthread_key_create(3), pthread_key_delete(3), pthread_setspecific(3)

STANDARDS


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