[t:4563], move txn code to own file

git-svn-id: file:///svn/toku/tokudb@40238 c7de825b-a66e-492c-adef-691d508d4ae1

src/Makefile

@@ -26,6 +26,7 @@ OBJS_RAW = \
 	ydb_env_func \
 	ydb_write \
 	ydb_db \
+	ydb_txn \
 	errors \
 	dlmalloc \
 	loader \

src/ydb-internal.h

@@ -257,13 +257,6 @@ void env_note_zombie_db_closed(DB_ENV *env, DB *db);
 int toku_env_dbremove(DB_ENV * env, DB_TXN *txn, const char *fname, const char *dbname, u_int32_t flags);
 int toku_env_dbrename(DB_ENV *env, DB_TXN *txn, const char *fname, const char *dbname, const char *newname, u_int32_t flags);
 
-
-int toku_txn_begin_internal(DB_ENV *env, DB_TXN * stxn, DB_TXN ** txn, u_int32_t flags, bool internal, bool holds_ydb_lock);
-int toku_txn_commit(DB_TXN * txn, u_int32_t flags, TXN_PROGRESS_POLL_FUNCTION, void*, bool release_multi_operation_client_lock);
-int toku_txn_abort(DB_TXN * txn, TXN_PROGRESS_POLL_FUNCTION, void*, bool release_multi_operation_client_lock);
-int locked_txn_commit(DB_TXN *txn, u_int32_t flags);
-int locked_txn_abort(DB_TXN *txn);
-
 #if defined(__cplusplus)
 }
 #endif

src/ydb_db.h

@@ -3,6 +3,8 @@
 #if !defined(TOKU_YDB_DB_H)
 #define TOKU_YDB_DB_H
 
+#include "ydb_txn.h"
+
 #if defined(__cplusplus)
 extern "C" {
 #endif

src/ydb_txn.h

+// This file defines the public interface to the ydb library
+
+#if !defined(TOKU_YDB_TXN_H)
+#define TOKU_YDB_TXN_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+int toku_txn_begin(DB_ENV *env, DB_TXN * stxn, DB_TXN ** txn, u_int32_t flags);
+int toku_txn_begin_internal(DB_ENV *env, DB_TXN * stxn, DB_TXN ** txn, u_int32_t flags, bool internal, bool holds_ydb_lock);
+int toku_txn_commit(DB_TXN * txn, u_int32_t flags, TXN_PROGRESS_POLL_FUNCTION, void*, bool release_multi_operation_client_lock);
+int toku_txn_abort(DB_TXN * txn, TXN_PROGRESS_POLL_FUNCTION, void*, bool release_multi_operation_client_lock);
+int locked_txn_commit(DB_TXN *txn, u_int32_t flags);
+int locked_txn_abort(DB_TXN *txn);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif