Mercurial > flash_v2

annotate packages/kernel/current/include/mfiximpl.hxx @ 64:c38311975d4f ecos-sw-2000-01-28

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Merge from eCos master repository on 2000-01-28-04:28:11-GMT
author jlarmour
date Fri, 28 Jan 2000 04:59:39 +0000
parents 443894e2e912
children bf00f99aec69
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
1 #ifndef CYGONCE_KERNEL_MFIXIMPL_HXX
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
2 #define CYGONCE_KERNEL_MFIXIMPL_HXX
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
3
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
4 //==========================================================================
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
5 //
2
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
6 // mfiximpl.hxx
0
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
7 //
2
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
8 // Memory pool with fixed block class declarations
0
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
9 //
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
10 //==========================================================================
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
11 //####COPYRIGHTBEGIN####
64
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
12 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
13 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
14 // The contents of this file are subject to the Red Hat eCos Public License
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
15 // Version 1.0 (the "License"); you may not use this file except in
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
16 // compliance with the License. You may obtain a copy of the License at
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
17 // http://sourceware.cygnus.com/ecos
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
18 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
19 // Software distributed under the License is distributed on an
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
20 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
21 // License for the specific language governing rights and limitations under
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
22 // the License.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
23 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
24 // The Original Code is eCos - Embedded Configurable Operating System,
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
25 // released September 30, 1998.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
26 //
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
27 // The Initial Developer of the Original Code is Red Hat.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
28 // Portions created by Red Hat are
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
29 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
30 // All Rights Reserved.
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
31 // -------------------------------------------
c38311975d4f Merge from eCos master repository on 2000-01-28-04:28:11-GMT
jlarmour
parents: 2
diff changeset
32 //
0
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
33 //####COPYRIGHTEND####
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
34 //==========================================================================
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
35 //#####DESCRIPTIONBEGIN####
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
36 //
2
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
37 // Author(s): hmt
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
38 // Contributors: hmt
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
39 // Date: 1998-03-23
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
40 // Purpose: Define Mfiximpl class interface
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
41 // Description: Inline class for constructing a fixed block allocator
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
42 // Usage: #include <cyg/kernel/mfiximpl.hxx>
443894e2e912 Block commit of eCos version 1.2.1
jlarmour
parents: 0
diff changeset
43 //
0
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
44 //
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
45 //####DESCRIPTIONEND####
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
46 //
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
47 //==========================================================================
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
48
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
49 #include <cyg/kernel/ktypes.h>
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
50 #include <cyg/infra/cyg_ass.h> // assertion macros
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
51 #include <cyg/kernel/thread.hxx>
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
52
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
53 class Cyg_Mempool_Fixed_Implementation {
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
54 private:
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
55 // these constructors are explicitly disallowed
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
56 Cyg_Mempool_Fixed_Implementation() {};
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
57 // Cyg_Mempool_Fixed_Implementation( Cyg_Mempool_Fixed_Implementation &ref )
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
58 // {};
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
59 Cyg_Mempool_Fixed_Implementation &
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
60 operator=( Cyg_Mempool_Fixed_Implementation &ref )
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
61 { return ref; };
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
62
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
63 private:
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
64 cyg_uint32 *bitmap;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
65 cyg_int32 maptop;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
66 cyg_uint8 *mempool;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
67 cyg_int32 numblocks;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
68 cyg_int32 freeblocks;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
69 cyg_int32 blocksize;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
70 cyg_int32 firstfree;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
71 cyg_uint8 *top;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
72
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
73 public:
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
74 // THIS is the public API of memory pools generally that can have the
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
75 // kernel oriented thread-safe package layer atop.
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
76 //
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
77 // The kernel package is a template whose type parameter is one of
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
78 // these. That is the reason there are superfluous parameters here and
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
79 // more genereralization than might be expected in a fixed block
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
80 // allocator.
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
81
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
82 // Constructor: gives the base and size of the arena in which memory is
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
83 // to be carved out, note that management structures are taken from the
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
84 // same arena. The alloc_unit may be any other param in general; it
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
85 // comes through from the outer constructor unchanged.
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
86 Cyg_Mempool_Fixed_Implementation(
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
87 cyg_uint8 *base,
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
88 cyg_int32 size,
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
89 CYG_ADDRWORD alloc_unit );
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
90
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
91 // Destructor
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
92 ~Cyg_Mempool_Fixed_Implementation();
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
93
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
94 // get some memory; size is ignored in a fixed block allocator
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
95 inline cyg_uint8 *alloc( cyg_int32 size );
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
96
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
97 // free the memory back to the pool; size ignored here
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
98 inline cyg_bool free( cyg_uint8 *p, cyg_int32 size );
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
99
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
100 // if applicable: return -1 if not fixed size
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
101 inline cyg_int32 get_blocksize() { return blocksize; }
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
102
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
103 // these two are obvious and generic
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
104 inline cyg_int32 get_totalmem() { return blocksize * numblocks; }
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
105 inline cyg_int32 get_freemem() { return blocksize * freeblocks; }
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
106
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
107 // get information about the construction parameters for external
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
108 // freeing after the destruction of the holding object
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
109 inline void get_arena( cyg_uint8 * &base, cyg_int32 &size, CYG_ADDRWORD &alloc )
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
110 {
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
111 base = (cyg_uint8 *)bitmap;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
112 size = top - base;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
113 alloc = blocksize;
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
114 }
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
115
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
116 };
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
117
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
118 // -------------------------------------------------------------------------
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
119 #endif // ifndef CYGONCE_KERNEL_MFIXIMPL_HXX
3111d98ba7b3 Initial commit of eCos version 1.1
jlarmour
parents:
diff changeset
120 // EOF mfiximpl.hxx