PTHREAD_KEY_DELETE(3) BSD Library Functions Manual PTHREAD_KEY_DELETE(3)NAMEpthread_key_delete — delete a thread-specific data key
POSIX Threads Library (libpthread, -lpthread)
The pthread_key_delete() function deletes a thread-specific data key pre‐
viously returned by pthread_key_create(). The thread-specific data val‐
ues associated with key need not be NULL at the time that
pthread_key_delete() is called. It is the responsibility of the applica‐
tion 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. Oth‐
erwise an error number will be returned to indicate the error.
The pthread_key_delete() function will fail if:
[EINVAL] The key value is invalid.
SEE ALSOpthread_getspecific(3), pthread_key_create(3), pthread_setspecific(3)STANDARDS
The pthread_key_delete() function conforms to ISO/IEC 9945-1:1996
BSD April 4, 1996 BSD