1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Start of xa.h header
*
* Define a symbol to prevent multiple inclusions of this header file
*/
#ifndef XA_H
#define XA_H
/*
* Transaction branch identification: XID and NULLXID:
*/
#ifndef XIDDATASIZE
#define XIDDATASIZE 128 /* size in bytes */
#define MAXGTRIDSIZE 64 /* maximum size in bytes of gtrid */
#define MAXBQUALSIZE 64 /* maximum size in bytes of bqual */
struct xid_t {
long formatID; /* format identifier */
long gtrid_length; /* value from 1 through 64 */
long bqual_length; /* value from 1 through 64 */
char data[XIDDATASIZE];
};
typedef struct xid_t XID;
#endif
/*
* A value of -1 in formatID means that the XID is null.
*/
#ifdef NOTDEFINED
/* Let us comment this out to remove compiler errors!!!!!!!!!!!! */
/*
* Declarations of routines by which RMs call TMs:
*/
extern int ax_reg __P((int, XID *, long));
extern int ax_unreg __P((int, long));
/*
* XA Switch Data Structure
*/
#define RMNAMESZ 32 /* length of resource manager name, */
/* including the null terminator */
#define MAXINFOSIZE 256 /* maximum size in bytes of xa_info */
/* strings, including the null
terminator */
struct xa_switch_t {
char name[RMNAMESZ]; /* name of resource manager */
long flags; /* resource manager specific options */
long version; /* must be 0 */
int (*xa_open_entry) /* xa_open function pointer */
__P((char *, int, long));
int (*xa_close_entry) /* xa_close function pointer */
__P((char *, int, long));
int (*xa_start_entry) /* xa_start function pointer */
__P((XID *, int, long));
int (*xa_end_entry) /* xa_end function pointer */
__P((XID *, int, long));
int (*xa_rollback_entry) /* xa_rollback function pointer */
__P((XID *, int, long));
int (*xa_prepare_entry) /* xa_prepare function pointer */
__P((XID *, int, long));
int (*xa_commit_entry) /* xa_commit function pointer */
__P((XID *, int, long));
int (*xa_recover_entry) /* xa_recover function pointer */
__P((XID *, long, int, long));
int (*xa_forget_entry) /* xa_forget function pointer */
__P((XID *, int, long));
int (*xa_complete_entry) /* xa_complete function pointer */
__P((int *, int *, int, long));
};
#endif /* NOTDEFINED */
/*
* Flag definitions for the RM switch
*/
#define TMNOFLAGS 0x00000000L /* no resource manager features
selected */
#define TMREGISTER 0x00000001L /* resource manager dynamically
registers */
#define TMNOMIGRATE 0x00000002L /* resource manager does not support
association migration */
#define TMUSEASYNC 0x00000004L /* resource manager supports
asynchronous operations */
/*
* Flag definitions for xa_ and ax_ routines
*/
/* use TMNOFLAGGS, defined above, when not specifying other flags */
#define TMASYNC 0x80000000L /* perform routine asynchronously */
#define TMONEPHASE 0x40000000L /* caller is using one-phase commit
optimisation */
#define TMFAIL 0x20000000L /* dissociates caller and marks
transaction branch rollback-only */
#define TMNOWAIT 0x10000000L /* return if blocking condition
exists */
#define TMRESUME 0x08000000L /* caller is resuming association with
suspended transaction branch */
#define TMSUCCESS 0x04000000L /* dissociate caller from transaction
branch */
#define TMSUSPEND 0x02000000L /* caller is suspending, not ending,
association */
#define TMSTARTRSCAN 0x01000000L /* start a recovery scan */
#define TMENDRSCAN 0x00800000L /* end a recovery scan */
#define TMMULTIPLE 0x00400000L /* wait for any asynchronous
operation */
#define TMJOIN 0x00200000L /* caller is joining existing
transaction branch */
#define TMMIGRATE 0x00100000L /* caller intends to perform
migration */
/*
* ax_() return codes (transaction manager reports to resource manager)
*/
#define TM_JOIN 2 /* caller is joining existing
transaction branch */
#define TM_RESUME 1 /* caller is resuming association with
suspended transaction branch */
#define TM_OK 0 /* normal execution */
#define TMER_TMERR -1 /* an error occurred in the transaction
manager */
#define TMER_INVAL -2 /* invalid arguments were given */
#define TMER_PROTO -3 /* routine invoked in an improper
context */
/*
* xa_() return codes (resource manager reports to transaction manager)
*/
#define XA_RBBASE 100 /* The inclusive lower bound of the
rollback codes */
#define XA_RBROLLBACK XA_RBBASE /* The rollback was caused by an
unspecified reason */
#define XA_RBCOMMFAIL XA_RBBASE+1 /* The rollback was caused by a
communication failure */
#define XA_RBDEADLOCK XA_RBBASE+2 /* A deadlock was detected */
#define XA_RBINTEGRITY XA_RBBASE+3 /* A condition that violates the
integrity of the resources was
detected */
#define XA_RBOTHER XA_RBBASE+4 /* The resource manager rolled back the
transaction branch for a reason not
on this list */
#define XA_RBPROTO XA_RBBASE+5 /* A protocol error occurred in the
resource manager */
#define XA_RBTIMEOUT XA_RBBASE+6 /* A transaction branch took too long */
#define XA_RBTRANSIENT XA_RBBASE+7 /* May retry the transaction branch */
#define XA_RBEND XA_RBTRANSIENT /* The inclusive upper bound of the
rollback codes */
#define XA_NOMIGRATE 9 /* resumption must occur where
suspension occurred */
#define XA_HEURHAZ 8 /* the transaction branch may have
been heuristically completed */
#define XA_HEURCOM 7 /* the transaction branch has been
heuristically committed */
#define XA_HEURRB 6 /* the transaction branch has been
heuristically rolled back */
#define XA_HEURMIX 5 /* the transaction branch has been
heuristically committed and rolled
back */
#define XA_RETRY 4 /* routine returned with no effect and
may be re-issued */
#define XA_RDONLY 3 /* the transaction branch was read-only
and has been committed */
#define XA_OK 0 /* normal execution */
#define XAER_ASYNC -2 /* asynchronous operation already
outstanding */
#define XAER_RMERR -3 /* a resource manager error occurred in
the transaction branch */
#define XAER_NOTA -4 /* the XID is not valid */
#define XAER_INVAL -5 /* invalid arguments were given */
#define XAER_PROTO -6 /* routine invoked in an improper
context */
#define XAER_RMFAIL -7 /* resource manager unavailable */
#define XAER_DUPID -8 /* the XID already exists */
#define XAER_OUTSIDE -9 /* resource manager doing work outside
transaction */
#endif /* ifndef XA_H */
/*
* End of xa.h header
*/
|
