FreeCalypso > hg > ffs-editor
diff src/nucleus/dm_defs.h @ 0:92470e5d0b9e
src: partial import from FC Selenite
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 15 May 2020 01:28:16 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/nucleus/dm_defs.h Fri May 15 01:28:16 2020 +0000 @@ -0,0 +1,153 @@ +/*************************************************************************/ +/* */ +/* 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 */ +/* */ +/* dm_defs.h Nucleus PLUS 1.14 */ +/* */ +/* COMPONENT */ +/* */ +/* DM - Dynamic Memory Management */ +/* */ +/* DESCRIPTION */ +/* */ +/* This file contains data structure definitions and constants for */ +/* the Dynamic Memory component. */ +/* */ +/* DATA STRUCTURES */ +/* */ +/* DM_PCB Dynamic Pool control block */ +/* DM_HEADER Header of each memory block */ +/* DM_SUSPEND Memory 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, */ +/* added padding logic, */ +/* resulting in version 1.1 */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* 04-17-1996 updated to version 1.2 */ +/* 01-07-1997 Added missing PAD_1 field to */ +/* DM_HEADER_STRUCT to be */ +/* consistent with other PLUS */ +/* structures creating 1.2a. */ +/* 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 DM_DEFS +#define DM_DEFS + + +/* Adjust a size to something that is evenly divisible by the number of bytes + in an UNSIGNED data type. */ + +#define DM_ADJUSTED_SIZE(size) \ + ((((size) + sizeof(UNSIGNED) - 1)/sizeof(UNSIGNED)) * sizeof(UNSIGNED)) + +#define DM_ADJUSTED_ALIGNMENT(alignment) DM_ADJUSTED_SIZE(alignment) + +/* Define constants local to this component. */ + +#define DM_DYNAMIC_ID 0x44594e41UL +#define DM_OVERHEAD ((sizeof(DM_HEADER) + sizeof(UNSIGNED) \ + - 1)/sizeof(UNSIGNED)) * \ + sizeof(UNSIGNED) + + +/* Define the Dynamic Pool Control Block data type. */ + +typedef struct DM_PCB_STRUCT +{ + CS_NODE dm_created; /* Node for linking to */ + /* created dynamic pools */ + TC_PROTECT dm_protect; /* Protection structure */ + UNSIGNED dm_id; /* Internal PCB ID */ + CHAR dm_name[NU_MAX_NAME]; /* Dynamic Pool name */ + VOID *dm_start_address; /* Starting pool address */ + UNSIGNED dm_pool_size; /* Size of pool */ + UNSIGNED dm_min_allocation; /* Minimum allocate size */ + UNSIGNED dm_available; /* Total available bytes */ + struct DM_HEADER_STRUCT + *dm_memory_list; /* Memory list */ + struct DM_HEADER_STRUCT + *dm_search_ptr; /* Search pointer */ + BOOLEAN dm_fifo_suspend; /* Suspension type flag */ +#if PAD_1 + DATA_ELEMENT dm_padding[PAD_1]; +#endif + UNSIGNED dm_tasks_waiting; /* Number of waiting tasks*/ + struct DM_SUSPEND_STRUCT + *dm_suspension_list; /* Suspension list */ +} DM_PCB; + + +/* Define the header structure that is in front of each memory block. */ + +typedef struct DM_HEADER_STRUCT +{ + struct DM_HEADER_STRUCT + *dm_next_memory, /* Next memory block */ + *dm_previous_memory; /* Previous memory block */ + BOOLEAN dm_memory_free; /* Memory block free flag */ +#if PAD_1 + DATA_ELEMENT dm_padding[PAD_1]; +#endif + DM_PCB *dm_memory_pool; /* Dynamic pool pointer */ +} DM_HEADER; + + +/* Define the dynamic memory suspension structure. This structure is + allocated off of the caller's stack. */ + +typedef struct DM_SUSPEND_STRUCT +{ + CS_NODE dm_suspend_link; /* Link to suspend blocks */ + DM_PCB *dm_memory_pool; /* Pointer to pool */ + UNSIGNED dm_request_size; /* Size of memory request */ + TC_TCB *dm_suspended_task; /* Task suspended */ + VOID *dm_return_pointer; /* Return memory address */ + STATUS dm_return_status; /* Return status */ +} DM_SUSPEND; + +#endif + + + + +