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Contact Us Post Here to Contact Site Administrators and Moderators Thread closed when learner has tried Post 302308636 by Neo on Sunday 19th of April 2009 10:19:21 PM
Old 04-20-2009
Posting homework is a direct violation of the terms of services (rules) of these forums.
 

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4. UNIX for Dummies Questions & Answers

This forum is closed for new thread ... post here.

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pthread_getspecific(3T) 												   pthread_getspecific(3T)

NAME
pthread_getspecific(), pthread_setspecific() - get or set the thread-specific data associated with a key SYNOPSIS
PARAMETERS
key Thread-specific data key whose value for the calling thread is to be set or retrieved. value Value to be assigned to the thread-specific data key for the calling thread. DESCRIPTION
The function returns the thread-specific data value associated with key for the calling thread. If no value has been associated with key for the calling thread, NULL is returned. The function associates the thread-specific data value with key. Each thread may bind a different value to key. These values are usually pointers to memory dynamically allocated by the calling thread. key must be a valid thread-specific data key created by calling If key is not a valid thread-specific data key, undefined behavior results when calling these functions. These functions may be called from a thread-specific data destructor function. However, calling from a destructor may result in lost stor- age. RETURN VALUE
The function returns the thread-specific data value associated with key. If no thread-specific data value is currently associated with key, the value NULL is returned. If successful, returns zero. Otherwise, an error number is returned to indicate the error (the variable is not set). ERRORS
No errors are returned by the function. If any of the following occur, the function returns the corresponding error number: [ENOMEM] There is insufficient memory available in which to associate value with key. For each of the following conditions, if the condition is detected, the function returns the corresponding error number: [EINVAL] key is an invalid thread-specific data key. AUTHOR
and were derived from the IEEE POSIX P1003.1c standard. SEE ALSO
pthread_key_create(3T), pthread_key_delete(3T). STANDARDS CONFORMANCE
Pthread Library pthread_getspecific(3T)

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