pthread_key_delete(3THR)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO

NAME

pthread_key_delete– delete thread-specific data key

SYNOPSIS

cc –mt [ flag... ] file... –lpthread [ -lrt library... ]
#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 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 behaviour.

The pthread_key_delete() function is callable from within destructor functions. No destructor functions will be 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 returns 0. Otherwise, an error number is returned to indicate the error.

ERRORS

The pthread_key_delete() function may fail if:

EINVAL

The key value is invalid.

The pthread_key_delete() function will not return an error code of EINTR.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
MT-Level	MT-Safe

SEE ALSO

pthread_key_create(3THR), attributes(5), standards(5)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | ATTRIBUTES | SEE ALSO