?? pmce.c
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/*************************************************************************/
/* */
/* 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 */
/* */
/* pmce.c Nucleus PLUS 1.14 */
/* */
/* COMPONENT */
/* */
/* PM - Partition Memory Management */
/* */
/* DESCRIPTION */
/* */
/* This file contains the error checking routines for the functions */
/* in the Partition component. This permits easy removal of error */
/* checking logic when it is not needed. */
/* */
/* DATA STRUCTURES */
/* */
/* None */
/* */
/* FUNCTIONS */
/* */
/* PMCE_Create_Partition_Pool Create a Partition Pool */
/* PMCE_Delete_Partition_Pool Delete a Partition Pool */
/* PMCE_Allocate_Partition Allocate a partition from a */
/* pool */
/* PMCE_Deallocate_Partition Deallocate a partition from */
/* a pool */
/* */
/* DEPENDENCIES */
/* */
/* cs_extr.h Common Service functions */
/* tc_extr.h Thread Control functions */
/* pm_extr.h Partition functions */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* 03-01-1994 Changed name original error */
/* checking file and changed */
/* function interfaces, 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 */
/* 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 "pm_extr.h" /* Partition functions */
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* PMCE_Create_Partition_Pool */
/* */
/* DESCRIPTION */
/* */
/* This function performs error checking on the parameters supplied */
/* to the create partition pool function. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* PMC_Create_Partition_Pool Actual create partition pool */
/* function */
/* */
/* INPUTS */
/* */
/* pool_ptr Partition pool control block */
/* pointer */
/* name Partition pool name */
/* start_address Starting address of the pool */
/* pool_size Number of bytes in the pool */
/* partition_size Number of bytes in each */
/* partition of the pool */
/* suspend_type Suspension type */
/* */
/* OUTPUTS */
/* */
/* NU_INVALID_POOL Pool control block pointer */
/* is NULL */
/* NU_INVALID_MEMORY Pool starting address is NULL*/
/* NU_INVALID_SIZE Partition size is 0 or it is */
/* larger than the pool area */
/* NU_INVALID_SUSPEND Suspension selection is not */
/* valid */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* 03-01-1994 Modified function interface, */
/* resulting in version 1.1 */
/* */
/* 03-18-1994 Verified version 1.1 */
/* */
/*************************************************************************/
STATUS PMCE_Create_Partition_Pool(NU_PARTITION_POOL *pool_ptr, CHAR *name,
VOID *start_address, UNSIGNED pool_size,
UNSIGNED partition_size, OPTION suspend_type)
{
PM_PCB *pool; /* Pool control block ptr */
STATUS status; /* Completion status */
UNSIGNED size; /* Adjusted size of partition*/
/* Move input pool pointer into internal pointer. */
pool = (PM_PCB *) pool_ptr;
/* Adjust the partition size to something that is evenly divisible by
the number of bytes in an UNSIGNED data type. */
size = ((partition_size + sizeof(UNSIGNED) - 1)/sizeof(UNSIGNED)) *
sizeof(UNSIGNED);
/* Check for a NULL partition pool control block pointer or a control
block that is already created. */
if ((pool == NU_NULL) || (pool -> pm_id == PM_PARTITION_ID))
/* Invalid partition pool control block pointer. */
status = NU_INVALID_POOL;
else if (start_address == NU_NULL)
/* Invalid memory pointer. */
status = NU_INVALID_MEMORY;
else if ((size == 0) || ((size + PM_OVERHEAD) > pool_size))
/* Pool could not even accommodate one partition. */
status = NU_INVALID_SIZE;
else if ((suspend_type != NU_FIFO) && (suspend_type != NU_PRIORITY))
/* Invalid suspension type. */
status = NU_INVALID_SUSPEND;
else
/* Call the actual service to create the partition pool. */
status = PMC_Create_Partition_Pool(pool_ptr, name, start_address,
pool_size, partition_size, suspend_type);
/* Return completion status. */
return(status);
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* PMCE_Delete_Partition_Pool */
/* */
/* DESCRIPTION */
/* */
/* This function performs error checking on the parameters supplied */
/* to the delete partition pool function. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* PMC_Delete_Partition_Pool Actual function to delete a */
/* partition pool */
/* */
/* INPUTS */
/* */
/* pool_ptr Partition pool control block */
/* pointer */
/* */
/* OUTPUTS */
/* */
/* NU_INVALID_POOL Indicates the supplied pool */
/* pointer is invalid */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 03-01-1993 Created initial version 1.0 */
/* 04-19-1993 Verified version 1.0 */
/* 03-01-1994 Modified function interface, */
/* resulting in version 1.1 */
/* */
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