// Copyright (C) 1995-1999 Microsoft Corporation. All rights reserved. /* ----------------------------------------------------------------- * Microsoft Distributed Transaction Coordinator * Microsoft Corporation, 1995. * * File : xa.h * * Contents : This file is derived from xa.h as it appears in * "Distributed Transaction Processing: The XA Specification", * November 93, X/Open Company Limited. * */ /* * Start of xa.h header * * Define a symbol to prevent multiple inclusion of this header file */ #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 */ #ifndef _XID_T_DEFINED #define _XID_T_DEFINED struct xid_t { long formatID; /* format identifier */ long gtrid_length; /* value not to exceed 64 */ long bqual_length; /* value not to exceed 64 */ char data[XIDDATASIZE]; }; #endif 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: */ #ifdef _TMPROTOTYPES extern int __cdecl ax_reg(int, XID *, long); extern int __cdecl ax_unreg(int, long); #else /* ifndef _TMPROTOTYPES */ extern int __cdecl ax_reg(); extern int __cdecl ax_unreg(); #endif /* ifndef _TMPROTOTYPES */ /* * 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 */ #ifndef _XA_SWITCH_T_DEFINED #define _XA_SWITCH_T_DEFINED struct xa_switch_t { char name[RMNAMESZ]; /* name of resource manager */ long flags; /* resource manager specific options */ long version; /* must be 0 */ int (__cdecl *xa_open_entry)(char *, int, long); /* xa_open function pointer */ int (__cdecl *xa_close_entry)(char *, int, long); /* xa_close function pointer*/ int (__cdecl *xa_start_entry)(XID *, int, long); /* xa_start function pointer */ int (__cdecl *xa_end_entry)(XID *, int, long); /* xa_end function pointer */ int (__cdecl *xa_rollback_entry)(XID *, int, long); /* xa_rollback function pointer */ int (__cdecl *xa_prepare_entry)(XID *, int, long); /* xa_prepare function pointer */ int (__cdecl *xa_commit_entry)(XID *, int, long); /* xa_commit function pointer */ int (__cdecl *xa_recover_entry)(XID *, long, int, long); /* xa_recover function pointer*/ int (__cdecl *xa_forget_entry)(XID *, int, long); /* xa_forget function pointer */ int (__cdecl *xa_complete_entry)(int *, int *, int, long); /* xa_complete function pointer */ }; typedef struct xa_switch_t xa_switch_t; #endif /* * 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 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 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 */ /* global transaction */ /* * XA entry point type definitions: */ typedef int (__cdecl *XA_OPEN_EPT)(char *, int, long); /* xa_open entry point */ typedef int (__cdecl *XA_CLOSE_EPT)(char *, int, long); /* xa_close entry point*/ typedef int (__cdecl *XA_START_EPT)(XID *, int, long); /* xa_start entry point */ typedef int (__cdecl *XA_END_EPT)(XID *, int, long); /* xa_end entry point */ typedef int (__cdecl *XA_ROLLBACK_EPT)(XID *, int, long); /* xa_rollback entry point */ typedef int (__cdecl *XA_PREPARE_EPT)(XID *, int, long);/* xa_prepare entry point */ typedef int (__cdecl *XA_COMMIT_EPT)(XID *, int, long); /* xa_commit entry point */ typedef int (__cdecl *XA_RECOVER_EPT)(XID *, long, int, long); /* xa_recover entry point*/ typedef int (__cdecl *XA_FORGET_EPT)(XID *, int, long); /* xa_forget entry point */ typedef int (__cdecl *XA_COMPLETE_EPT)(int *, int *, int, long); /* xa_complete entry point */ #endif /* ifndef XA_H */ /* * End of xa.h header */