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  • Committer: Monty Taylor
  • Date: 2010-02-05 08:11:15 UTC
  • mfrom: (1283 build)
  • mto: (1273.13.43 fix_is)
  • mto: This revision was merged to the branch mainline in revision 1300.
  • Revision ID: mordred@inaugust.com-20100205081115-dr82nvrwv4lvw7sd
Merged trunk.

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drizzled/xid.h
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#ifndef DRIZZLED_XID_H
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#define DRIZZLED_XID_H
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#include <cstring>
 
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namespace drizzled
 
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{
 
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extern uint32_t server_id;
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/**
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*/
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typedef uint64_t my_xid; // this line is the same as in log_event.h
 
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typedef uint64_t my_xid;
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#define DRIZZLE_XIDDATASIZE 128
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#define DRIZZLE_XID_PREFIX "MySQLXid"
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#define DRIZZLE_XID_OFFSET (DRIZZLE_XID_PREFIX_LEN+sizeof(server_id))
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#define DRIZZLE_XID_GTRID_LEN (DRIZZLE_XID_OFFSET+sizeof(my_xid))
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#define XIDDATASIZE DRIZZLE_XIDDATASIZE
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class XID {
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public:
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  long formatID;
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  long gtrid_length;
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  long bqual_length;
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  char data[XIDDATASIZE];  // not \0-terminated !
 
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  char data[DRIZZLE_XIDDATASIZE];  // not \0-terminated !
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  XID();
 
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  XID() :
 
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    formatID(-1), /* -1 == null */
 
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    gtrid_length(0),
 
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    bqual_length(0)
 
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  {
 
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    memset(data, 0, DRIZZLE_XIDDATASIZE);
 
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  }
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  bool eq(XID *xid);
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  bool eq(long g, long b, const char *d);
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  void set(XID *xid);
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#define MIN_XID_LIST_SIZE  128
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#define MAX_XID_LIST_SIZE  (1024*128)
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typedef struct st_xid_state {
 
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class XID_STATE 
 
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{
 
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public:
 
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  XID_STATE() :
 
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    xid(),
 
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    xa_state(XA_NOTR),
 
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    in_session(false)
 
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  {}
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  /* For now, this is only used to catch duplicated external xids */
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  XID  xid;                           // transaction identifier
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  enum xa_states xa_state;            // used by external XA only
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  bool in_session;
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} XID_STATE;
 
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};
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bool xid_cache_init(void);
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void xid_cache_free(void);
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bool xid_cache_insert(XID_STATE *xid_state);
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void xid_cache_delete(XID_STATE *xid_state);
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} /* namespace drizzled */
 
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#endif /* DRIZZLED_XID_H */