PTHREAD_KEY_DELETE(3) BSD Library Functions Manual PTHREAD_KEY_DELETE(3)
NAME
pthread_key_delete -- delete a thread-specific data key
SYNOPSIS
#include <pthread.h>
int
pthread_key_delete(pthread_key_t key);
DESCRIPTION
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.
RETURN VALUES
If successful, the pthread_key_delete() function will return zero. Otherwise, an error number will be returned to indicate the error.
ERRORS
pthread_key_delete() will fail if:
[EINVAL] The key value is invalid.
SEE ALSO
pthread_getspecific(3), pthread_key_create(3), pthread_setspecific(3)
STANDARDS
pthread_key_delete() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'').
BSD
April 4, 1996 BSD
