source: rtems/c/src/exec/score/headers/wkspace.h @ 3a4ae6c

4.104.114.84.95
Last change on this file since 3a4ae6c was 3a4ae6c, checked in by Joel Sherrill <joel.sherrill@…>, on 09/11/95 at 19:35:39

The word "RTEMS" almost completely removed from the core.

Configuration Table Template file added and all tests
modified to use this. All gvar.h and conftbl.h files
removed from test directories.

Configuration parameter maximum_devices added.

Core semaphore and mutex handlers added and RTEMS API Semaphore
Manager updated to reflect this.

Initialization sequence changed to invoke API specific initialization
routines. Initialization tasks table now owned by RTEMS Tasks Manager.

Added user extension for post-switch.

Utilized user extensions to implement API specific functionality
like signal dispatching.

Added extensions to the System Initialization Thread so that an
API can register a function to be invoked while the system
is being initialized. These are largely equivalent to the
pre-driver and post-driver hooks.

Added the Modules file oar-go32_p5, modified oar-go32, and modified
the file make/custom/go32.cfg to look at an environment varable which
determines what CPU model is being used.

All BSPs updated to reflect named devices and clock driver's IOCTL
used by the Shared Memory Driver. Also merged clock isr into
main file and removed ckisr.c where possible.

Updated spsize to reflect new and moved variables.

Makefiles for the executive source and include files updated to show
break down of files into Core, RTEMS API, and Neither.

Header and inline files installed into subdirectory based on whether
logically in the Core or a part of the RTEMS API.
  • Property mode set to 100644
File size: 2.1 KB
Line 
1/*  wkspace.h
2 *
3 *  This include file contains information related to the
4 *  RAM Workspace.  This Handler provides mechanisms which can be used to
5 *  define, initialize and manipulate the workspace.
6 *
7 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
8 *  On-Line Applications Research Corporation (OAR).
9 *  All rights assigned to U.S. Government, 1994.
10 *
11 *  This material may be reproduced by or for the U.S. Government pursuant
12 *  to the copyright license under the clause at DFARS 252.227-7013.  This
13 *  notice must appear in all copies of this file and its derivatives.
14 *
15 *  $Id$
16 */
17
18#ifndef __WORKSPACE_h
19#define __WORKSPACE_h
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25#include <rtems/core/heap.h>
26#include <rtems/core/interr.h>
27
28/*
29 *  The following is used to manage the Workspace.
30 *
31 */
32
33EXTERN Heap_Control _Workspace_Area;  /* executive heap header */
34
35/*
36 *  _Workspace_Handler_initialization
37 *
38 *  DESCRIPTION:
39 *
40 *  This routine performs the initialization necessary for this handler.
41 */
42
43STATIC INLINE void _Workspace_Handler_initialization(
44  void       *starting_address,
45  unsigned32  size
46);
47
48/*
49 *  _Workspace_Allocate
50 *
51 *  DESCRIPTION:
52 *
53 *  This routine returns the address of a block of memory of size
54 *  bytes.  If a block of the appropriate size cannot be allocated
55 *  from the workspace, then NULL is returned.
56 */
57
58STATIC INLINE void *_Workspace_Allocate(
59  unsigned32 size
60);
61
62/*
63 *  _Workspace_Allocate_or_fatal_error
64 *
65 *  DESCRIPTION:
66 *
67 *  This routine returns the address of a block of memory of size
68 *  bytes.  If a block of the appropriate size cannot be allocated
69 *  from the workspace, then the internal error handler is invoked.
70 */
71
72void *_Workspace_Allocate_or_fatal_error(
73  unsigned32   size
74);
75
76/*
77 *  _Workspace_Free
78 *
79 *  DESCRIPTION:
80 *
81 *  This function frees the specified block of memory.  If the block
82 *  belongs to the Workspace and can be successfully freed, then
83 *  TRUE is returned.  Otherwise FALSE is returned.
84 */
85
86STATIC INLINE boolean _Workspace_Free(
87  void *block
88);
89
90#include <rtems/core/wkspace.inl>
91
92#ifdef __cplusplus
93}
94#endif
95
96#endif
97/* end of include file */
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