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/*
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  $Id: semaphore.h,v 1.2 2001-09-27 11:59:12 chris Exp $
 */
 
#ifndef __ITRON_SEMAPHORE_h_
#define __ITRON_SEMAPHORE_h_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 *  Create Semaphore (cre_sem) Structure
 */
 
typedef struct t_csem {
  VP    exinf;    /* extended information */
  ATR   sematr;   /* semaphore attributes */
  /* Following is the extended function for [level X]. */
  INT   isemcnt;   /* initial semaphore count */
  INT   maxsem;    /* maximum semaphore count */
  /* additional information may be included depending on the implementation */
} T_CSEM;
 
/*
 *  sematr - Semaphore Attribute Values
 */
 
#define TA_TFIFO   0x00   /* waiting tasks are handled by FIFO */
#define TA_TPRI    0x01   /* waiting tasks are handled by priority */
 
#define _ITRON_SEMAPHORE_UNUSED_ATTRIBUTES ~(TA_TPRI)
 
/*
 *  Reference Semaphore (ref_sem) Structure
 */
 
typedef struct t_rsem {
  VP      exinf;    /* extended information */
  BOOL_ID wtsk;     /* indicates whether or not there is a waiting task */
  INT     semcnt;   /* current semaphore count */
  /* additional information may be included depending on the implementation */
} T_RSEM;
 
/*
 *  Semaphore Functions
 */
 
/*
 *  cre_sem - Create Semaphore
 */
 
ER cre_sem(
  ID semid,
  T_CSEM *pk_csem
);
 
/*
 *  del_sem - Delete Semaphore
 */
 
ER del_sem(
  ID semid
);
 
/*
 *  sig_sem - Signal Semaphore
 */
 
ER sig_sem(
  ID semid
);
 
/*
 *  wai_sem - Wait on Semaphore
 */
 
ER wai_sem(
  ID semid
);
 
/*
 *  preq_sem - Poll and Request Semaphore
 */
 
ER preq_sem(
  ID semid
);
 
/*
 *  twai_sem - Wait on Semaphore with Timeout
 */
 
ER twai_sem(
  ID semid,
  TMO tmout
);
 
/*
 *  ref_sem - Reference Semaphore Status
 */
 
ER ref_sem(
  ID      semid,
  T_RSEM *pk_rsem
);
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */
 

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`* COPYRIGHT (c) 1989-1999.`
3			`* On-Line Applications Research Corporation (OAR).`
4			`*`
5			`* The license and distribution terms for this file may be`
6			`* found in the file LICENSE in this distribution or at`
7			`* http://www.OARcorp.com/rtems/license.html.`
8			`*`
9			`* $Id: semaphore.h,v 1.2 2001-09-27 11:59:12 chris Exp $`
10			`*/`
11
12			`#ifndef __ITRON_SEMAPHORE_h_`
13			`#define __ITRON_SEMAPHORE_h_`
14
15			`#ifdef __cplusplus`
16			`extern "C" {`
17			`#endif`
18
19			`/*`
20			`* Create Semaphore (cre_sem) Structure`
21			`*/`
22
23			`typedef struct t_csem {`
24			`VP exinf; /* extended information */`
25			`ATR sematr; /* semaphore attributes */`
26			`/* Following is the extended function for [level X]. */`
27			`INT isemcnt; /* initial semaphore count */`
28			`INT maxsem; /* maximum semaphore count */`
29			`/* additional information may be included depending on the implementation */`
30			`} T_CSEM;`
31
32			`/*`
33			`* sematr - Semaphore Attribute Values`
34			`*/`
35
36			`#define TA_TFIFO 0x00 /* waiting tasks are handled by FIFO */`
37			`#define TA_TPRI 0x01 /* waiting tasks are handled by priority */`
38
39			`#define _ITRON_SEMAPHORE_UNUSED_ATTRIBUTES ~(TA_TPRI)`
40
41			`/*`
42			`* Reference Semaphore (ref_sem) Structure`
43			`*/`
44
45			`typedef struct t_rsem {`
46			`VP exinf; /* extended information */`
47			`BOOL_ID wtsk; /* indicates whether or not there is a waiting task */`
48			`INT semcnt; /* current semaphore count */`
49			`/* additional information may be included depending on the implementation */`
50			`} T_RSEM;`
51
52			`/*`
53			`* Semaphore Functions`
54			`*/`
55
56			`/*`
57			`* cre_sem - Create Semaphore`
58			`*/`
59
60			`ER cre_sem(`
61			`ID semid,`
62			`T_CSEM *pk_csem`
63			`);`
64
65			`/*`
66			`* del_sem - Delete Semaphore`
67			`*/`
68
69			`ER del_sem(`
70			`ID semid`
71			`);`
72
73			`/*`
74			`* sig_sem - Signal Semaphore`
75			`*/`
76
77			`ER sig_sem(`
78			`ID semid`
79			`);`
80
81			`/*`
82			`* wai_sem - Wait on Semaphore`
83			`*/`
84
85			`ER wai_sem(`
86			`ID semid`
87			`);`
88
89			`/*`
90			`* preq_sem - Poll and Request Semaphore`
91			`*/`
92
93			`ER preq_sem(`
94			`ID semid`
95			`);`
96
97			`/*`
98			`* twai_sem - Wait on Semaphore with Timeout`
99			`*/`
100
101			`ER twai_sem(`
102			`ID semid,`
103			`TMO tmout`
104			`);`
105
106			`/*`
107			`* ref_sem - Reference Semaphore Status`
108			`*/`
109
110			`ER ref_sem(`
111			`ID semid,`
112			`T_RSEM *pk_rsem`
113			`);`
114
115			`#ifdef __cplusplus`
116			`}`
117			`#endif`
118
119			`#endif`
120			`/* end of include file */`
121

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [itron/] [include/] [itronsys/] [semaphore.h] - Blame information for rev 389