view src/nucleus/sms.c @ 265:e57bfdadf49a

mmiIcons.c: fix bogus icnType in incoming_call_animate[] The incoming call animation icons are actually drawn in 256-color format, but they were incorrectly declared as BMP_FORMAT_32BIT_COLOUR in the incoming_call_animate[] array. Why were they still getting displayed correctly despite this bogosity? Answer: because the mmi_dialogs_animation_new_CB() function overrides the icon bitmap type to 0x02, which means 256-color format. Needless to say, the icon format should be made correct at the source of the data, and at some later point we may need to remove the override from the animation display function.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 17 May 2021 07:18:36 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/*************************************************************************/
/*                                                                       */
/*               Copyright Mentor Graphics Corporation 2002              */
/*                         All Rights Reserved.                          */
/*                                                                       */
/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS  */
/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS   */
/* SUBJECT TO LICENSE TERMS.                                             */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                               VERSION       */
/*                                                                       */
/*      sms.c                                          Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      SM - Semaphore Management                                        */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains the supplemental routines for the Semaphore   */
/*      Management component.                                            */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      SMS_Reset_Semaphore                 Reset semaphore              */
/*                                            terminate condition        */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      cs_extr.h                           Common Service functions     */
/*      tc_extr.h                           Thread Control functions     */
/*      sm_extr.h                           Semaphore functions          */
/*      hi_extr.h                           History functions            */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1994      Created initial version 1.1 from                 */
/*                        routines originally in core                    */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*      04-17-1996      updated to version 1.2                           */
/*      03-24-1998      Released version 1.3.                            */
/*      03-26-1999      Released 1.11m (new release                      */
/*                        numbering scheme)                              */
/*      04-17-2002      Released version 1.13m                           */
/*      11-07-2002      Released version 1.14                            */
/*************************************************************************/
#define         NU_SOURCE_FILE


#include        "cs_extr.h"                 /* Common service functions  */
#include        "tc_extr.h"                 /* Thread control functions  */
#include        "sm_extr.h"                 /* Semaphore functions       */
#include        "hi_extr.h"                 /* History functions         */
#include        "profiler.h"                /* ProView interface         */



/*************************************************************************/
/*                                                                       */
/* FUNCTION                                                              */
/*                                                                       */
/*      SMS_Reset_Semaphore                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This function resets a semaphore back to the initial state.  All */
/*      tasks suspended on the semaphore are resumed with the reset      */
/*      completion status.                                               */
/*                                                                       */
/* CALLED BY                                                             */
/*                                                                       */
/*      Application                                                      */
/*      SMSE_Reset_Semaphore                Error checking shell         */
/*                                                                       */
/* CALLS                                                                 */
/*                                                                       */
/*      [HIC_Make_History_Entry]            Make entry in history log    */
/*      TCC_Resume_Task                     Resume a suspended task      */
/*      [TCT_Check_Stack]                   Stack checking function      */
/*      TCT_Control_To_System               Transfer control to system   */
/*      TCT_System_Protect                  Protect semaphore            */
/*      TCT_Unprotect                       Release protection           */
/*                                                                       */
/* INPUTS                                                                */
/*                                                                       */
/*      semaphore_ptr                       Semaphore control block ptr  */
/*      initial_count                       Initial count to reset the   */
/*                                            semaphore to               */
/*                                                                       */
/* OUTPUTS                                                               */
/*                                                                       */
/*      NU_SUCCESS                                                       */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Changed function interface to                    */
/*                        match the prototype, added                     */
/*                        register variable logic,                       */
/*                        optimized protection logic,                    */
/*                        resulting in version 1.1                       */
/*                                                                       */
/*      03-18-1994      Verified version 1.1                             */
/*                                                                       */
/*************************************************************************/
STATUS  SMS_Reset_Semaphore(NU_SEMAPHORE *semaphore_ptr,
                                                    UNSIGNED initial_count)
{

R1 SM_SCB      *semaphore;                  /* Semaphore control blk ptr */
R2 SM_SUSPEND  *suspend_ptr;                /* Suspend block pointer     */
R3 SM_SUSPEND  *next_ptr;                   /* Next suspend block pointer*/
STATUS          preempt;                    /* Status for resume call    */
NU_SUPERV_USER_VARIABLES

    /* Switch to supervisor mode */
    NU_SUPERVISOR_MODE();

    /* Move input semaphore pointer into internal pointer.  */
    semaphore =  (SM_SCB *) semaphore_ptr;

#ifdef  NU_ENABLE_STACK_CHECK

    /* Call stack checking function to check for an overflow condition.  */
    TCT_Check_Stack();

#endif

#ifdef  NU_ENABLE_HISTORY

    /* Make an entry that corresponds to this function in the system history
       log.  */
    HIC_Make_History_Entry(NU_RESET_SEMAPHORE_ID, (UNSIGNED) semaphore,
                                       (UNSIGNED) initial_count, (UNSIGNED) 0);

#endif

    /* Protect against access to the semaphore.  */
    TCT_System_Protect();

    /* Pickup the suspended task pointer list.  */
    suspend_ptr =  semaphore -> sm_suspension_list;

    /* Walk the chain task(s) currently suspended on the semaphore.  */
    preempt =  0;
    while (suspend_ptr)
    {

        /* Resume the suspended task.  Insure that the status returned is
           NU_SEMAPHORE_RESET.  */
        suspend_ptr -> sm_return_status =  NU_SEMAPHORE_RESET;

        /* Point to the next suspend structure in the link.  */
        next_ptr =  (SM_SUSPEND *) (suspend_ptr -> sm_suspend_link.cs_next);

        /* Resume the specified task.  */
        preempt =  preempt |
                TCC_Resume_Task((NU_TASK *) suspend_ptr -> sm_suspended_task,
                                                NU_SEMAPHORE_SUSPEND);

        /* Determine if the next is the same as the current pointer.  */
        if (next_ptr == semaphore -> sm_suspension_list)

            /* Clear the suspension pointer to signal the end of the list
               traversal.  */
            suspend_ptr =  NU_NULL;
        else

            /* Move the next pointer into the suspend block pointer.  */
            suspend_ptr =  next_ptr;
    }

    /* Initialize the semaphore.  */
    semaphore -> sm_semaphore_count =  initial_count;
    semaphore -> sm_tasks_waiting =    0;
    semaphore -> sm_suspension_list =  NU_NULL;

#ifdef INCLUDE_PROVIEW
    _RTProf_DumpSema(RT_PROF_RESET_SEMAPHORE,(SM_SCB *) semaphore, RT_PROF_OK);
#endif

    /* Determine if preemption needs to occur.  */
    if (preempt)

        /* Transfer control to system to facilitate preemption.  */
        TCT_Control_To_System();

    /* Release protection against access to the semaphore.  */
    TCT_Unprotect();

    /* Return to user mode */
    NU_USER_MODE();

    /* Return a successful completion.  */
    return(NU_SUCCESS);
}