?? pmce.c
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/* 03-18-1994 Verified version 1.1 */
/* */
/*************************************************************************/
STATUS PMCE_Delete_Partition_Pool(NU_PARTITION_POOL *pool_ptr)
{
PM_PCB *pool; /* Pool control block ptr */
STATUS status; /* Completion status */
/* Move input pool pointer into internal pointer. */
pool = (PM_PCB *) pool_ptr;
/* Determine if the partition pool pointer is valid. */
if ((pool) && (pool -> pm_id == PM_PARTITION_ID))
/* Partition pool pointer is valid, call function to delete it. */
status = PMC_Delete_Partition_Pool(pool_ptr);
else
/* Partition pool pointer is invalid, indicate in completion status. */
status = NU_INVALID_POOL;
/* Return completion status. */
return(status);
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* PMCE_Allocate_Partition */
/* */
/* DESCRIPTION */
/* */
/* This function performs error checking on the parameters supplied */
/* to the allocate partition function. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* PMC_Allocate_Partition Actual partition allocate */
/* function */
/* TCCE_Suspend_Error Check for a task suspension */
/* error */
/* */
/* INPUTS */
/* */
/* pool_ptr Memory partition pool pointer*/
/* return_pointer Pointer to the destination */
/* memory pointer */
/* suspend Suspension option if full */
/* */
/* OUTPUTS */
/* */
/* NU_INVALID_POOL Indicates the pool pointer */
/* is invalid */
/* NU_INVALID_POINTER Indicates the return pointer */
/* is NULL */
/* NU_INVALID_SUSPEND Indicates the suspension 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 */
/* */
/* 03-18-1994 Verified version 1.1 */
/* */
/*************************************************************************/
STATUS PMCE_Allocate_Partition(NU_PARTITION_POOL *pool_ptr,
VOID **return_pointer, UNSIGNED suspend)
{
PM_PCB *pool; /* Pool control block ptr */
STATUS status; /* Completion status */
/* Move input pool pointer into internal pointer. */
pool = (PM_PCB *) pool_ptr;
/* Determine if partition pool pointer is invalid. */
if (pool == NU_NULL)
/* Partition pool pointer is invalid, indicate in completion status. */
status = NU_INVALID_POOL;
else if (pool -> pm_id != PM_PARTITION_ID)
/* Partition pool pointer is invalid, indicate in completion status. */
status = NU_INVALID_POOL;
else if (return_pointer == NU_NULL)
/* Return pointer is invalid. */
status = NU_INVALID_POINTER;
else if ((suspend) && (TCCE_Suspend_Error()))
/* Suspension from a non-task thread. */
status = NU_INVALID_SUSPEND;
else
/* Parameters are valid, call actual function. */
status = PMC_Allocate_Partition(pool_ptr, return_pointer, suspend);
/* Return the completion status. */
return(status);
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* PMCE_Deallocate_Partition */
/* */
/* DESCRIPTION */
/* */
/* This function performs error checking on the parameters supplied */
/* to the deallocate partition function. */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/* CALLS */
/* */
/* PMC_Deallocate_Partition Deallocate a partition */
/* */
/* INPUTS */
/* */
/* partition Pointer to partition memory */
/* */
/* OUTPUTS */
/* */
/* NU_INVALID_POINTER Indicates the supplied */
/* partition pointer is NULL, */
/* or otherwise invalid. */
/* NU_SUCCESS */
/* */
/* 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_Deallocate_Partition(VOID *partition)
{
PM_PCB *pool; /* Pool pointer */
PM_HEADER *header_ptr; /* Pointer to partition hdr */
STATUS status; /* Completion status */
/* Pickup the associated pool's pointer. It is inside the header of
each partition. */
header_ptr = (PM_HEADER *) (((BYTE_PTR) partition) - PM_OVERHEAD);
/* Determine if the pointer(s) are NULL. */
if ((header_ptr == NU_NULL) || (partition == NU_NULL))
/* Partition pointer is invalid. */
status = NU_INVALID_POINTER;
/* Determine if partition pool pointer is invalid. */
else if ((pool = header_ptr -> pm_partition_pool) == NU_NULL)
/* Partition pointer is invalid, indicate in completion status. */
status = NU_INVALID_POINTER;
else if (pool -> pm_id != PM_PARTITION_ID)
/* Partition pool pointer is invalid, indicate in completion status. */
status = NU_INVALID_POINTER;
else if (header_ptr -> pm_next_available)
/* Partition is still linked on the available list- must not be
allocated. */
status = NU_INVALID_POINTER;
else
/* Parameters are valid, call actual function. */
status = PMC_Deallocate_Partition(partition);
/* Return the completion status. */
return(status);
}
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