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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.
 *
 *  mbox.h,v 1.3 1999/11/17 16:47:15 jennifer Exp
 */
 
#ifndef __ITRON_MBOX_h_
#define __ITRON_MBOX_h_
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 *  Create Mailbox (cre_mbx) Structure
 */
 
typedef struct t_cmbx {
  VP    exinf;    /* extended information */
  ATR   mbxatr;   /* mailbox attributes */
  /* Following is implementation-dependent function */
  INT   bufcnt;   /* maximum number of messages to let pend */
  /* additional information may be included depending on the implementation */
} T_CMBX;
 
/*
 *  mbxatr
 */
 
#define TA_TFIFO   0x00   /* waiting tasks are handled by FIFO */
#define TA_TPRI    0x01   /* waiting tasks are handled by priority */
#define TA_MFIFO   0x00   /* messages are handled by FIFO */
#define TA_MPRI    0x02   /* messages are handled by priority */
 
typedef struct t_msg {
  /*
   *  A region (header) reserved by the OS may be included first
   *  depending on the implementation.
   *
   *  NOTE: The first two fields are RTEMS specific.
   */
 
  INT       msgpri;   /* priority of each message */
  /* VB   msgcont[];  XXX */
  unsigned8 msgcont[1];
} T_MSG;
 
/*
 *  Reference Mailbox (ref_mbx) Structure
 */
 
typedef struct t_rmbx {
  VP        exinf;    /* extended information */
  BOOL_ID   wtsk;     /* indicates whether or not there is a waiting task */
  T_MSG    *pk_msg;   /* message to be sent next */
  /* additional information may be included depending on the implementation */
} T_RMBX;
 
/*
 *  Mailbox Functions
 */
 
/*
 *  cre_mbx - Create Mailbox
 */
 
ER cre_mbx(
  ID      mbxid,
  T_CMBX *pk_cmbx
);
 
/*
 *  del_mbx - Delete Mailbox
 */
 
ER del_mbx(
  ID mbxid
);
 
/*
 *  snd_msg - Send Message to Mailbox
 */
 
ER snd_msg(
  ID     mbxid,
  T_MSG *pk_msg
);
 
/*
 *  rcv_msg - Receive Message from Mailbox
 */
 
ER rcv_msg(
  T_MSG **ppk_msg,
  ID      mbxid
);
 
/*
 *  prcv_msg - Poll and Receive Message from Mailbox
 */
 
ER prcv_msg(
  T_MSG **ppk_msg,
  ID      mbxid
);
 
/*
 *  trcv_msg - Receive Message from Mailbox with Timeout
 */
 
ER trcv_msg(
  T_MSG **ppk_msg,
  ID      mbxid,
  TMO     tmout
);
 
/*
 *  ref_mbx - Reference Mailbox Status
 */
 
ER ref_mbx(
  T_RMBX *pk_rmbx,
  ID      mbxid
);
 
 
#ifdef __cplusplus
}
#endif
 
#endif
/* end of include file */
 

Line No.	Rev	Author	Line
1	1026	ivang	`/*`
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			`* mbox.h,v 1.3 1999/11/17 16:47:15 jennifer Exp`
10			`*/`
11
12			`#ifndef __ITRON_MBOX_h_`
13			`#define __ITRON_MBOX_h_`
14
15			`#ifdef __cplusplus`
16			`extern "C" {`
17			`#endif`
18
19			`/*`
20			`* Create Mailbox (cre_mbx) Structure`
21			`*/`
22
23			`typedef struct t_cmbx {`
24			`VP exinf; /* extended information */`
25			`ATR mbxatr; /* mailbox attributes */`
26			`/* Following is implementation-dependent function */`
27			`INT bufcnt; /* maximum number of messages to let pend */`
28			`/* additional information may be included depending on the implementation */`
29			`} T_CMBX;`
30
31			`/*`
32			`* mbxatr`
33			`*/`
34
35			`#define TA_TFIFO 0x00 /* waiting tasks are handled by FIFO */`
36			`#define TA_TPRI 0x01 /* waiting tasks are handled by priority */`
37			`#define TA_MFIFO 0x00 /* messages are handled by FIFO */`
38			`#define TA_MPRI 0x02 /* messages are handled by priority */`
39
40			`typedef struct t_msg {`
41			`/*`
42			`* A region (header) reserved by the OS may be included first`
43			`* depending on the implementation.`
44			`*`
45			`* NOTE: The first two fields are RTEMS specific.`
46			`*/`
47
48			`INT msgpri; /* priority of each message */`
49			`/* VB msgcont[]; XXX */`
50			`unsigned8 msgcont[1];`
51			`} T_MSG;`
52
53			`/*`
54			`* Reference Mailbox (ref_mbx) Structure`
55			`*/`
56
57			`typedef struct t_rmbx {`
58			`VP exinf; /* extended information */`
59			`BOOL_ID wtsk; /* indicates whether or not there is a waiting task */`
60			`T_MSG pk_msg; / message to be sent next */`
61			`/* additional information may be included depending on the implementation */`
62			`} T_RMBX;`
63
64			`/*`
65			`* Mailbox Functions`
66			`*/`
67
68			`/*`
69			`* cre_mbx - Create Mailbox`
70			`*/`
71
72			`ER cre_mbx(`
73			`ID mbxid,`
74			`T_CMBX *pk_cmbx`
75			`);`
76
77			`/*`
78			`* del_mbx - Delete Mailbox`
79			`*/`
80
81			`ER del_mbx(`
82			`ID mbxid`
83			`);`
84
85			`/*`
86			`* snd_msg - Send Message to Mailbox`
87			`*/`
88
89			`ER snd_msg(`
90			`ID mbxid,`
91			`T_MSG *pk_msg`
92			`);`
93
94			`/*`
95			`* rcv_msg - Receive Message from Mailbox`
96			`*/`
97
98			`ER rcv_msg(`
99			`T_MSG **ppk_msg,`
100			`ID mbxid`
101			`);`
102
103			`/*`
104			`* prcv_msg - Poll and Receive Message from Mailbox`
105			`*/`
106
107			`ER prcv_msg(`
108			`T_MSG **ppk_msg,`
109			`ID mbxid`
110			`);`
111
112			`/*`
113			`* trcv_msg - Receive Message from Mailbox with Timeout`
114			`*/`
115
116			`ER trcv_msg(`
117			`T_MSG **ppk_msg,`
118			`ID mbxid,`
119			`TMO tmout`
120			`);`
121
122			`/*`
123			`* ref_mbx - Reference Mailbox Status`
124			`*/`
125
126			`ER ref_mbx(`
127			`T_RMBX *pk_rmbx,`
128			`ID mbxid`
129			`);`
130
131
132			`#ifdef __cplusplus`
133			`}`
134			`#endif`
135
136			`#endif`
137			`/* end of include file */`
138

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