pm_defs.h

test file nucleus 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       */
/*                                                                       */
/*      pm_defs.h                                      Nucleus PLUS 1.14 */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      PM - Partition Memory Management                                 */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains data structure definitions and constants for  */
/*      the Partition Memory component.                                  */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      PM_PCB                              Partition Pool control block */
/*      PM_HEADER                           Header of each partition     */
/*      PM_SUSPEND                          Partition suspension block   */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      cs_defs.h                           Common service definitions   */
/*      tc_defs.h                           Thread Control definitions   */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*         DATE                    REMARKS                               */
/*                                                                       */
/*      03-01-1993      Created initial version 1.0                      */
/*      04-19-1993      Verified version 1.0                             */
/*      03-01-1994      Moved include files outside of                   */
/*                      the file #ifndef to allow the                    */
/*                      use of actual data structures,                   */
/*                      removed protect structure,                       */
/*                      added padding logic,                             */
/*                      resulting in version 1.1                         */
/*                                                                       */
/*      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                            */
/*************************************************************************/

#include        "cs_defs.h"                 /* Common service constants  */
#include        "tc_defs.h"                 /* Thread control constants  */


/* Check to see if the file has been included already.  */

#ifndef PM_DEFS
#define PM_DEFS


/* Define constants local to this component.  */

#define         PM_PARTITION_ID         0x50415254UL
#define         PM_OVERHEAD            ((sizeof(PM_HEADER) + sizeof(UNSIGNED) \
                                        - 1)/sizeof(UNSIGNED)) *    \
                                        sizeof(UNSIGNED)


/* Define the Partition Pool Control Block data type.  */

typedef struct PM_PCB_STRUCT 
{
    CS_NODE             pm_created;            /* Node for linking to    */
                                               /* created partition list */
    UNSIGNED            pm_id;                 /* Internal PCB ID        */
    CHAR                pm_name[NU_MAX_NAME];  /* Partition Pool name    */
    VOID               *pm_start_address;      /* Starting pool address  */
    UNSIGNED            pm_pool_size;          /* Size of pool           */
    UNSIGNED            pm_partition_size;     /* Size of each partition */
    UNSIGNED            pm_available;          /* Available partitions   */
    UNSIGNED            pm_allocated;          /* Allocated partitions   */
    struct PM_HEADER_STRUCT    
                       *pm_available_list;     /* Available list         */
    BOOLEAN             pm_fifo_suspend;       /* Suspension type flag   */
#if     PAD_1
    DATA_ELEMENT        pm_padding[PAD_1];
#endif 
    UNSIGNED            pm_tasks_waiting;      /* Number of waiting tasks*/
    struct PM_SUSPEND_STRUCT
                       *pm_suspension_list;    /* Suspension list        */
} PM_PCB;    


/* Define the header structure that is in front of each memory partition.  */

typedef struct PM_HEADER_STRUCT
{
    struct PM_HEADER_STRUCT
                       *pm_next_available;     /* Next available memory  */
                                               /*   partition            */
    PM_PCB             *pm_partition_pool;     /* Partition pool pointer */
} PM_HEADER;


/* Define the partition suspension structure.  This structure is allocated 
   off of the caller's stack.  */
   
typedef struct PM_SUSPEND_STRUCT
{
    CS_NODE             pm_suspend_link;       /* Link to suspend blocks */
    PM_PCB             *pm_partition_pool;     /* Pointer to pool        */
    TC_TCB             *pm_suspended_task;     /* Task suspended         */
    VOID               *pm_return_pointer;     /* Return memory address  */
    STATUS              pm_return_status;      /* Return status          */
} PM_SUSPEND;

#endif