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/* Copyright (c) 1992, 2006, Oracle. All rights reserved. */
/*
NAME
xa.h - <one-line expansion of the name>
DESCRIPTION
<short description of component this file declares/defines>
PUBLIC FUNCTION(S)
<list of external functions declared/defined - with one-line descriptions>
PRIVATE FUNCTION(S)
<list of static functions defined in .c file - with one-line descriptions>
RETURNS
<function return values, for .c file with single function>
NOTES
<other useful comments, qualifications, etc.>
This is the public XA .h file
MODIFIED (MM/DD/YY)
yohu 08/27/06 - XA/RAC project changes: XAER_AFFINITY
dmukhin 06/29/05 - ANSI prototypes; miscellaneous cleanup
whe 09/01/99 - 976457:check __cplusplus for C++ code
ntang 10/20/98 - Remove TMCACHE & TMFORCL
abhide 08/04/97 - implement xaoforcl
abhide 07/23/97 - XA OTS project changes
schandra 02/20/96 - lint
abhide 04/07/94 - merge changes from branch 1.1.710.1
abhide 02/14/94 - Creation
abhide 02/10/94 - Creation
abhide 02/10/94 - Creation
*/
/*
* xa.h header
* Typed in from X/Open doc of March 13, 1990
* Updated to Parsippany II draft, March, 1991
* Updated to Co Review draft, 19 Sep 1991
*/
#ifndef XA_H
#define XA_H
/*
* Transaction branch identification: XID and NULLXID:
*/
#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;
/*
* A value of -1 in formatID means that the XID is null.
*/
/*
* Declarations of routines by which RMs call TMs:
*/
int ax_reg(int, XID *, long);
int ax_unreg(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)(char *, int, long); /*xa_open function pointer*/
int (*xa_close_entry)(char *, int, long); /*xa_close function pointer*/
int (*xa_start_entry)(XID *, int, long); /*xa_start function pointer*/
int (*xa_end_entry)(XID *, int, long); /*xa_end function pointer*/
int (*xa_rollback_entry)(XID *, int, long);
/*xa_rollback function pointer*/
int (*xa_prepare_entry)(XID *, int, long); /*xa_prepare function pointer*/
int (*xa_commit_entry)(XID *, int, long); /*xa_commit function pointer*/
int (*xa_recover_entry)(XID *, long, int, long);
/*xa_recover function pointer*/
int (*xa_forget_entry)(XID *, int, long); /*xa_forget function pointer*/
int (*xa_complete_entry)(int *, int *, int, long);
};
/*
* Flag definition 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 TMNOFLAGS, 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 for a reason not on this
list */
#define XA_RBPROTO XA_RBBASE+5 /* A protocal 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 comitted */
#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 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 global transaction */
#define XAER_AFFINITY -10 /* XA on RAC: resumption must occur on
RAC instance where the transaction
branch was created */
#endif /* ifndef XA_H */