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PTHREAD_KEY_DELETE(3) DragonFly Library Functions Manual
pthread_key_delete - delete a thread-specific data key
POSIX Threads Library (libpthread, -lpthread)
The pthread_key_delete() function deletes a thread-specific data key
previously returned by pthread_key_create(). The thread-specific data
values associated with key need not be NULL at the time that
pthread_key_delete() is called. It is the responsibility of the
application to free any application storage or perform any cleanup
actions for data structures related to the deleted key or associated
thread-specific data in any threads; this cleanup can be done either
before or after pthread_key_delete() is called. Any attempt to use key
following the call to pthread_key_delete() results in undefined behavior.
The pthread_key_delete() function is callable from within destructor
functions. Destructor functions are not invoked by pthread_key_delete().
Any destructor function that may have been associated with key will no
longer be called upon thread exit.
If successful, the pthread_key_delete() function will return zero.
Otherwise an error number will be returned to indicate the error.
The pthread_key_delete() function will fail if:
[EINVAL] The key value is invalid.
pthread_getspecific(3), pthread_key_create(3), pthread_setspecific(3)
The pthread_key_delete() function conforms to ISO/IEC 9945-1:1996
DragonFly 5.9-DEVELOPMENT July 10, 2009 DragonFly 5.9-DEVELOPMENT