NAME

pthread_key_setname_np − Change the object name in a thread-specific data key object

SYNOPSIS

#include <pthread.h>
int pthread_key_setname_np(
        pthread_key_t ∗key,
        const char ∗name,
        void ∗mbz );

LIBRARY

DECthreads POSIX 1003.1c Library (libpthread.so)

PARAMETERS

keyAddress of the thread-specific data key object whose object name is to be changed. 

name
Object name value to copy into the thread-specific data key object.

mbzReserved for future use. The value must be zero (0). 

DESCRIPTION

This routine changes the object name in the thread-specific data key object specified by key to the value specified by name.  To set a new thread-specific data key object’s object name, call this routine immediately after initializing the key object. 

The object name is a C language string and provides an identifier that is meaningful to a person debugging a multithreaded application. The maximum number of characters in the object name is 31. 

RETURN VALUES

If an error condition occurs, this routine returns an integer value indicating the type of error. Possible return values are as follows:

0Successful completion. 

[EINVAL]
The value specified by key is not a valid key, or the length in characters of name exceeds 31. 

[ENOMEM]
Insufficient memory exists to create a copy of the object name string.

ERRORS

None

SEE ALSO

Functions: pthread_key_getname_np(3)

Manuals: Guide to DECthreads and Programmer’s Guide