Index for Section 3

Alphabetical listing for P

pthread_mutexattr_gettype_np(3)
NAME
  pthread_mutexattr_gettype_np - Obtains the mutex type attribute in the
  specified mutex attribute object.

LIBRARY
  DECthreads POSIX 1003.1c Library (libpthread.so)

SYNOPSIS
  #include <pthread.h>

  int	pthread_mutexattr_gettype_np(
		      const pthread_mutexattr_t	  *attr,
		      int			  *type);

STANDARDS
  None

PARAMETERS
  attr	    Mutex attributes object whose mutex type is obtained.

  type	    Receives the value of the mutex type attribute.  The type
	    argument specifies the type of mutex that can be created.  Valid
	    values are:

	      ·
	      PTHREAD_MUTEX_NORMAL

	      ·
	      PTHREAD_MUTEX_DEFAULT (default)

	      ·
	      PTHREAD_MUTEX_RECURSIVE

	      ·
	      PTHREAD_MUTEX_ERRORCHECK

DESCRIPTION
  This routine obtains the value of the mutex type attribute in the mutex
  attributes object specified by the attr argument and stores it in the
  location specified by the type argument.  See the
  pthread_mutexattr_settype(3) description for information about mutex types.

NOTES
  This routine has been superseded by the pthread_mutexattr_gettype(3)
  routine, as specified by the Single UNIX Specification, Version 2.

RETURN VALUES
  On successful completion, this routine returns the mutex type attribute in
  the location specified by the type argument.


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

  0	    Successful completion.

  [EINVAL]  The value specified by attr is invalid.

ERRORS
  None

RELATED INFORMATION
  Functions: pthread_mutexattr_init(3), pthread_mutexattr_settype_np(3),
  pthread_mutex_init(3)

  Manuals: Guide to DECthreads and Programmer's Guide