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comparison src/nucleus/pid.c @ 7:0f80e1e4dce4

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src/nucleus: library C code import from FreeNucleus package
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 15 Jul 2018 20:57:33 +0000
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6:8b2a9a374324 7:0f80e1e4dce4
1 /*************************************************************************/
2 /* */
3 /* Copyright Mentor Graphics Corporation 2002 */
4 /* All Rights Reserved. */
5 /* */
6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
8 /* SUBJECT TO LICENSE TERMS. */
9 /* */
10 /*************************************************************************/
11
12 /*************************************************************************/
13 /* */
14 /* FILE NAME VERSION */
15 /* */
16 /* pid.c Nucleus PLUS 1.14 */
17 /* */
18 /* COMPONENT */
19 /* */
20 /* PI - Pipe Management */
21 /* */
22 /* DESCRIPTION */
23 /* */
24 /* This file contains global data structures for use within the */
25 /* pipe management component. */
26 /* */
27 /* DATA STRUCTURES */
28 /* */
29 /* PID_Created_Pipe_List Pointer to the linked-list */
30 /* of created pipes */
31 /* PID_Total_Pipes Total number of created */
32 /* pipes */
33 /* PID_List_Protect Pipe list protection */
34 /* */
35 /* FUNCTIONS */
36 /* */
37 /* None */
38 /* */
39 /* DEPENDENCIES */
40 /* */
41 /* pi_defs.h Pipe Management constants */
42 /* */
43 /* HISTORY */
44 /* */
45 /* DATE REMARKS */
46 /* */
47 /* 03-01-1993 Created initial version 1.0 */
48 /* 04-19-1993 Verified version 1.0 */
49 /* 03-01-1994 Modified copyright, resulting in */
50 /* version 1.1 */
51 /* */
52 /* 03-18-1994 Verified version 1.1 */
53 /* 04-17-1996 updated to version 1.2 */
54 /* 03-24-1998 Released version 1.3 */
55 /* 03-26-1999 Released 1.11m (new release */
56 /* numbering scheme) */
57 /* 04-17-2002 Released version 1.13m */
58 /* 11-07-2002 Released version 1.14 */
59 /*************************************************************************/
60 #define NU_SOURCE_FILE
61
62 #include "pi_defs.h" /* Pipe constants */
63
64
65 /* PID_Created_Pipes_List is the head pointer of the linked list of
66 created pipes. If the list is NU_NULL, there are no pipes
67 created. */
68
69 CS_NODE *PID_Created_Pipes_List;
70
71
72 /* PID_Total_Pipes contains the number of currently created
73 pipes. */
74
75 UNSIGNED PID_Total_Pipes;
76
77
78 /* PID_List_Protect is a list protection structure used to block any other
79 thread from access to the created pipe list. */
80
81 TC_PROTECT PID_List_Protect;
82
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87