NAME
pthread_key_delete —
delete a thread-specific data
key
LIBRARY
library “libpthread”
SYNOPSIS
#include
<pthread.h>
int
pthread_key_delete(pthread_key_t
key);
DESCRIPTION
Thepthread_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
The pthread_key_delete() function will
fail if:
- [
EINVAL] - The key value is invalid.
SEE ALSO
pthread_getspecific(3), pthread_key_create(3), pthread_setspecific(3)
STANDARDS
The pthread_key_delete() function conforms
to ISO/IEC 9945-1:1996
(“POSIX.1”).