Required changes to support recovery of X/Open XA in InnoDB.

innobase/lock/lock0lock.c:
  Add prepared state to concurrency states in lock validate.
innobase/trx/trx0trx.c:
  Prepared transactions are active transactions in file based word.
sql/ha_innodb.cc:
  Add full support of X/Open XA to InnoDB.

innobase/lock/lock0lock.c

@@ -4417,8 +4417,9 @@ lock_table_queue_validate(
 	lock = UT_LIST_GET_FIRST(table->locks);
 
 	while (lock) {
-		ut_a(((lock->trx)->conc_state == TRX_ACTIVE)
-		     || ((lock->trx)->conc_state == TRX_COMMITTED_IN_MEMORY));
+		ut_a((lock->trx)->conc_state == TRX_ACTIVE ||
+		      	(lock->trx)->conc_state == TRX_PREPARED || 
+			(lock->trx)->conc_state == TRX_COMMITTED_IN_MEMORY);
 	
 		if (!lock_get_wait(lock)) {
 
@@ -4464,9 +4465,9 @@ lock_rec_queue_validate(
 		lock = lock_rec_get_first(rec);
 
 		while (lock) {
-			ut_a(lock->trx->conc_state == TRX_ACTIVE
-		     	     || lock->trx->conc_state
-						== TRX_COMMITTED_IN_MEMORY);
+			ut_a(lock->trx->conc_state == TRX_ACTIVE ||
+			     lock->trx->conc_state == TRX_PREPARED ||
+			     lock->trx->conc_state == TRX_COMMITTED_IN_MEMORY);
 	
 			ut_a(trx_in_trx_list(lock->trx));
 			
@@ -4518,8 +4519,10 @@ lock_rec_queue_validate(
 	lock = lock_rec_get_first(rec);
 
 	while (lock) {
-		ut_a(lock->trx->conc_state == TRX_ACTIVE
-		     || lock->trx->conc_state == TRX_COMMITTED_IN_MEMORY);
+		ut_a(lock->trx->conc_state == TRX_ACTIVE ||
+		     lock->trx->conc_state == TRX_PREPARED ||
+		     lock->trx->conc_state == TRX_COMMITTED_IN_MEMORY);
+
 		ut_a(trx_in_trx_list(lock->trx));
 	
 		if (index) {
@@ -4600,8 +4603,9 @@ loop:
 	}
 
 	ut_a(trx_in_trx_list(lock->trx));
-	ut_a(lock->trx->conc_state == TRX_ACTIVE
-		     || lock->trx->conc_state == TRX_COMMITTED_IN_MEMORY);
+	ut_a(lock->trx->conc_state == TRX_ACTIVE ||
+	     lock->trx->conc_state == TRX_PREPARED ||
+	     lock->trx->conc_state == TRX_COMMITTED_IN_MEMORY);
 	
 	for (i = nth_bit; i < lock_rec_get_n_bits(lock); i++) {
 

innobase/trx/trx0trx.c

@@ -1612,12 +1612,10 @@ trx_print(
 			fputs(", not started", f);
 			break;
 		case TRX_ACTIVE:
+		case TRX_PREPARED:
 			fprintf(f, ", ACTIVE %lu sec",
 				(ulong)difftime(time(NULL), trx->start_time));
                         break;
-                case TRX_PREPARED:
-			fputs(", PREPARED", f);
-                        break;
 		case TRX_COMMITTED_IN_MEMORY:
 			fputs(", COMMITTED IN MEMORY", f);
 			break;

sql/ha_innodb.cc

@@ -156,18 +156,18 @@ static int innobase_rollback_to_savepoint(THD* thd, void *savepoint);
 static int innobase_savepoint(THD* thd, void *savepoint);
 
 static handlerton innobase_hton = {
-  0, /* slot */
-  sizeof(trx_named_savept_t),   /* savepoint size. TODO: use it */
+  0,				/* slot */
+  sizeof(trx_named_savept_t),	/* savepoint size. TODO: use it */
   innobase_close_connection,
   innobase_savepoint,
   innobase_rollback_to_savepoint,
-  NULL,                         /* savepoint_release */
-  innobase_commit,
-  innobase_rollback,
-  innobase_xa_prepare, //makes flush_block_commit test to fail
-  NULL,                         /* recover */
-  NULL,                         /* commit_by_xid */
-  NULL,                         /* rollback_by_xid */
+  NULL,				/* savepoint_release */
+  innobase_commit,		/* commit */
+  innobase_rollback,		/* rollback */
+  innobase_xa_prepare,		/* prepare */
+  innobase_xa_recover,		/* recover */
+  innobase_commit_by_xid,	/* commit_by_xid */
+  innobase_rollback_by_xid,	/* rollback_by_xid */
 };
 
 /*********************************************************************
@@ -6019,36 +6019,4 @@ int innobase_rollback_by_xid(
 	}
 }
 
-/***********************************************************************
-This function is used to test commit/rollback of XA transactions */
-
-int innobase_xa_end(
-/*================*/
-	THD*	thd)	/* in: MySQL thread handle of the user for whom
-			transactions should be recovered */
-{
-        DBUG_ENTER("innobase_xa_end");
-
-	XID trx_list[100];
-	int trx_num, trx_num_max = 100;
-	int i;
-	XID xid;
-
-	while((trx_num = innobase_xa_recover(trx_list, trx_num_max))) {
-
-		for(i=0;i < trx_num; i++) {
-			xid = trx_list[i];
-
-			if ( i % 2) {
-				innobase_commit_by_xid(&xid);
-			} else {
-				innobase_rollback_by_xid(&xid);
-			}
-		}
-	}
-
-	free(trx_list);
-
-	DBUG_RETURN(0);
-}
 #endif /* HAVE_INNOBASE_DB */