/* semPxShow.c - POSIX semaphore show library *//* Copyright 1984-1998 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01i,17mar99,jdi  doc: updated w/ info about proj facility (SPR 25727).01h,05oct98,jmp  doc: replaced INCLUDE_SHOW_RTNS by INCLUDE_SHOW_ROUTINES.01g,19jan95,jdi  doc tweaks.01f,03feb94,kdl  changed show format.01e,01feb94,dvs  documentation tweaks.01d,21jan94,kdl	 minor changes to display labels.01c,05jan94,kdl	 changed sem_t "close" field to "refCnt"; general cleanup.01b,17dec93,dvs  changed semClassId to semPxClassId01a,16jun93,smb  created.*//*DESCRIPTIONThis library provides a show routine for POSIX semaphore objects.*/#include "vxWorks.h"#include "semPxShow.h"#include "semaphore.h"#include "stdio.h"#include "sys/types.h"#include "taskLib.h"#include "classLib.h"#include "private/objLibP.h"#include "private/stdioP.h"#include "private/semPxLibP.h"/******************************************************************************** semPxShowInit - initialize the POSIX semaphore show facility** This routine links the POSIX semaphore show routine into the VxWorks system.* It is called automatically when the this show facility is* configured into VxWorks using either of the following methods:* .iP* If you use the configuration header files, define* INCLUDE_SHOW_ROUTINES in config.h.* .iP* If you use the Tornado project facility, select INCLUDE_POSIX_SEM_SHOW.** RETURNS: OK, or ERROR if an error occurs installing the file pointer * show routine.*/STATUS semPxShowInit (void)    {    classShowConnect (semPxClassId, (FUNCPTR)semPxShow);    return (OK);    }/********************************************************************************* semPxShow - display semaphore internals** NOMANUAL*/STATUS semPxShow    (    sem_t *	semDesc,    int		level    )    {    int 	sval;    if (OBJ_VERIFY (semDesc, semPxClassId) != OK)	{        return (ERROR);                         /* invalid file pointer */	}    if (semDesc->sem_name != NULL)		/* if a named semaphore */	{    	printf ("%-32s: %-10s\n", "Semaphore name", semDesc->sem_name);    	printf ("%-32s: %-10d\n", "sem_open() count", semDesc->refCnt);	}    sem_getvalue (semDesc, &sval);    if (sval >= 0)	{        printf ("%-32s: %-10d\n", "Semaphore value", sval);	}    else	{	/* tell the user the value is zero */        printf ("%-32s: %-10d\n", "Semaphore value", 0);        printf ("%-32s: %-10d\n", "No. of blocked tasks", -(sval));	}    printf ("\n");    /* someday display the buffer contents with level >= 1 */    return (OK);    }