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pthread_key_delete(3) [freebsd man page]

PTHREAD_KEY_DELETE(3)					   BSD Library Functions Manual 				     PTHREAD_KEY_DELETE(3)

pthread_key_delete -- delete a thread-specific data key LIBRARY
POSIX Threads Library (libpthread, -lpthread) 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
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''). BSD
April 4, 1996 BSD

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PTHREAD_GETSPECIFIC(3)					   BSD Library Functions Manual 				    PTHREAD_GETSPECIFIC(3)

pthread_getspecific -- get a thread-specific data value LIBRARY
POSIX Threads Library (libpthread, -lpthread) SYNOPSIS
#include <pthread.h> void * pthread_getspecific(pthread_key_t key); DESCRIPTION
The pthread_getspecific() function returns the value currently bound to the specified key on behalf of the calling thread. The effect of calling pthread_getspecific() with a key value not obtained from pthread_key_create() or after key has been deleted with pthread_key_delete() is undefined. The pthread_getspecific() function may be called from a thread-specific data destructor function. RETURN VALUES
The pthread_getspecific() function will return the thread-specific data value associated with the given key. If no thread-specific data value is associated with key, then the value NULL is returned. ERRORS
pthread_key_create(3), pthread_key_delete(3), pthread_setspecific(3) STANDARDS
The pthread_getspecific() function conforms to ISO/IEC 9945-1:1996 (``POSIX.1''). BSD
April 4, 1996 BSD
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