pthread_attr_getname_np(3) [netbsd man page]

PTHREAD_ATTR_GETNAME_NP(3)				   BSD Library Functions Manual 				PTHREAD_ATTR_GETNAME_NP(3)

NAME

     pthread_attr_getname_np -- get and set descriptive name of an attribute

LIBRARY

     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS

     #include <pthread.h>

     int
     pthread_attr_getname_np(const pthread_attr_t attr, char *name, size_t len);

     int
     pthread_attr_setname_np(pthread_attr_t attr, const char *name, void *arg);

DESCRIPTION

     The pthread_attr_getname_np() function gets the descriptive name of a thread attribute.  It takes the following arguments:

	   attr    The attribute whose descriptive name will be obtained.

	   name    The buffer to be filled with the descriptive name of the attribute.

	   len	   The size of the buffer name in bytes.

     The pthread_attr_setname_np() function sets the descriptive name of a thread attribute.  It takes the following arguments:

	   attr  The attribute whose descriptive name will be set.

	   name  The printf(3) format string to be used to construct the descriptive name of the attribute.  The resulted descriptive name should
		 be shorter than PTHREAD_MAX_NAMELEN_NP.

	   arg	 The printf(3) argument used with name.

RETURN VALUES

     Both functions return 0 on success.  Otherwise, an error number is returned.

COMPATIBILITY

     Both functions are non-standard extensions.

ERRORS

     No errors are defined for pthread_attr_getname_np().

     The pthread_attr_setname_np() function may fail if:

     [EINVAL]		The supplied descriptive name was longer than PTHREAD_MAX_NAMELEN_NP.

     [ENOMEM]		There was insufficient memory for the operation.

SEE ALSO

     pthread_attr(3), pthread_getname_np(3)

BSD
								   July 7, 2010 							       BSD

PTHREAD_ATTR(3) 					   BSD Library Functions Manual 					   PTHREAD_ATTR(3)

NAME

     pthread_attr_init, pthread_attr_destroy -- thread attribute operations

LIBRARY

     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS

     #include <pthread.h>

     int
     pthread_attr_init(pthread_attr_t *attr);

     int
     pthread_attr_destroy(pthread_attr_t *attr);

DESCRIPTION

     Thread attributes are used to specify parameters to pthread_create().  One attribute object can be used in multiple calls to
     pthread_create(), with or without modifications between the calls.  The pthread_attr_t type is an opaque representation of the thread
     attributes; any access to the object other than via the described pthread_attr_*() functions may result in undefined behavior.

     The pthread_attr_init() function initializes attr with the default thread attributes used in the implementation.  Depending on the implemen-
     tation, undefined behavior may follow if an uninitialized thread attribute object is used with some of the thread attribute functions.  It is
     therefore a good practice to always use pthread_attr_init(), even if this might be unnecessary.  Undefined behavior may also follow if an
     already initialized attr is used with pthread_attr_init().

     When the attribute object is no longer needed, it should be destroyed by using pthread_attr_destroy().  The function has no effect on threads
     that were created by using a given attribute object.  A destroyed attr can be reinitialized using pthread_attr_init(), but all other actions
     with the destroyed object are unspecified.

     The following standard thread attribute functions are available:

	   Function			    Description
	   pthread_attr_getdetachstate(3)   thread detach state
	   pthread_attr_getguardsize(3)     thread guard size
	   pthread_attr_getinheritsched(3)  inherit scheduler attribute
	   pthread_attr_getschedparam(3)    thread scheduling parameter
	   pthread_attr_getschedpolicy(3)   thread scheduling policy
	   pthread_attr_getscope(3)	    thread contention scope
	   pthread_attr_getstack(3)	    thread stack
	   pthread_attr_getstacksize(3)     thread stack size
	   pthread_attr_getstackaddr(3)     thread stack address

     Each listed pthread_attr_get*() function contains a pthread_attr_set*() counterpart.  In addition, the following NetBSD specific extensions
     are available:

	   Function			    Description
	   pthread_attr_get_np(3)	    attributes of a running thread
	   pthread_attr_getname_np(3)	    descriptive name of an attribute

RETURN VALUES

     If successful, these functions return 0.  Otherwise, an error number is returned to indicate the error.

ERRORS

     No errors are defined for pthread_attr_init() and pthread_attr_destroy().

SEE ALSO

     pthread_create(3), pthread_join(3)

STANDARDS

     Both pthread_attr_init() and pthread_attr_destroy() conform to IEEE Std 1003.1-2001 (``POSIX.1'').

BSD
								   July 9, 2010 							       BSD