NAME

pthread_mutex_setname_np − Changes the object name in a mutex object. 

LIBRARY

DECthreads POSIX 1003.1c Library (libpthread.so)

SYNOPSIS

#include <pthread.h>

int   pthread_mutex_setname_np(
                      pthread_mutex_t           ∗mutex,
                      const char                ∗name,
                      void                      ∗mbz);

PARAMETERS

mutexMutex object whose object name is to be changed. 

nameObject name value to copy into the mutex object. 

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

DESCRIPTION

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

The object name is a C language string and provides an identifier that is meaningful to a person debugging a DECthreads-based 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 mutex is invalid, or the length in characters of name exceeds 31. 

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

ERRORS

None

RELATED INFORMATION

Functions: pthread_mutex_getname_np(3), pthread_mutex_init(3)

Manuals: Guide to DECthreads and Programmer’s Guide