pthread_key_delete Subroutine

Purpose

Deletes a thread-specific data key.

Library

Threads Library (libpthreads.a)

Syntax

#include <pthread.h>

int pthread_key_delete (key)
pthread_key_t key;

Description

The pthread_key_delete subroutine deletes the thread-specific data key key, previously created with the pthread_key_create subroutine. The application must ensure that no thread-specific data is associated with the key. No destructor routine is called.

Note: The pthread.h header file must be the first included file of each source file using the threads library. Otherwise, the -D_THREAD_SAFE compilation flag should be used, or the cc_r compiler used. In this case, the flag is automatically set.

Parameters

Item	Description
key	Specifies the key to delete.

Return Values

If successful, the pthread_key_delete function returns zero. Otherwise, an error number is returned to indicate the error.

Error Codes

The pthread_key_delete function will fail if:

Item	Description
EINVAL	The key value is invalid.

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