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pthread_key_delete(3) [osx man page]

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

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pthread_key_delete(3)					     Library Functions Manual					     pthread_key_delete(3)

NAME
pthread_key_delete - Deletes a thread-specific data key. LIBRARY
DECthreads POSIX 1003.1c Library (libpthread.so) SYNOPSIS
#include <pthread.h> int pthread_key_delete( pthread_key_t key); STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: IEEE Std 1003.1c-1995, POSIX System Application Program Interface PARAMETERS
Context key to be deleted. DESCRIPTION
This routine deletes the thread-specific data key specified by the key argument, which must have been previously returned by pthread_key_create(3). The thread-specific data values associated with key need not be NULL at the time this routine is called. The application must 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 this routine is called. Do not attempt to use the key after calling this routine; this results in unpredictable behavior. No destructor functions are invoked by this routine. Any destructor functions that may have been associated with key shall no longer be called upon thread exit. pthread_key_delete(3) can be called from within destructor functions. RETURN VALUES
If an error condition occurs, this routine returns an integer value indicating the type of error. Possible return values are as follows: Successful completion. The key value is an invalid argument. ERRORS
None RELATED INFORMATION
Functions: pthread_exit(3), pthread_getspecific(3), pthread_key_create(3) Manuals: Guide to DECthreads and Programmer's Guide delim off pthread_key_delete(3)

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