From f7f8efc2638b35c95b1a26b2bc808aaa92a43c79 Mon Sep 17 00:00:00 2001
From: "marko@hundin.mysql.fi" <>
Date: Mon, 5 Apr 2004 15:40:56 +0300
Subject: [PATCH] InnoDB: Backport fil_path_to_mysql_datadir from MySQL 4.1.x

---
 innobase/fil/fil0fil.c     | 5 +++++
 innobase/include/fil0fil.h | 5 +++++
 sql/ha_innodb.cc           | 1 +
 3 files changed, 11 insertions(+)

diff --git a/innobase/fil/fil0fil.c b/innobase/fil/fil0fil.c
index 44f1777bb33..5d45b254afe 100644
--- a/innobase/fil/fil0fil.c
+++ b/innobase/fil/fil0fil.c
@@ -77,6 +77,11 @@ out of the LRU-list and keep a count of pending operations. When an operation
 completes, we decrement the count and return the file node to the LRU-list if
 the count drops to zero. */
 
+/* When mysqld is run, the default directory "." is the mysqld datadir,
+but in the MySQL Embedded Server Library and ibbackup it is not the default
+directory, and we must set the base file path explicitly */
+const char*	fil_path_to_mysql_datadir	= ".";
+
 ulint	fil_n_pending_log_flushes		= 0;
 ulint	fil_n_pending_tablespace_flushes	= 0;
 
diff --git a/innobase/include/fil0fil.h b/innobase/include/fil0fil.h
index ad3149f0b36..ef41ca21d2c 100644
--- a/innobase/include/fil0fil.h
+++ b/innobase/include/fil0fil.h
@@ -16,6 +16,11 @@ Created 10/25/1995 Heikki Tuuri
 #include "ut0byte.h"
 #include "os0file.h"
 
+/* When mysqld is run, the default directory "." is the mysqld datadir, but in
+ibbackup we must set it explicitly; the path must NOT contain the trailing
+'/' or '\' */
+extern const char*	fil_path_to_mysql_datadir;
+
 /* 'null' (undefined) page offset in the context of file spaces */
 #define	FIL_NULL	ULINT32_UNDEFINED
 
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 5a929237e3b..ff249b9d251 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -714,6 +714,7 @@ innobase_init(void)
 
 	if (mysql_embedded) {
 		default_path = mysql_real_data_home;
+		fil_path_to_mysql_datadir = mysql_real_data_home;
 	} else {
 	  	/* It's better to use current lib, to keep paths short */
 	  	current_dir[0] = FN_CURLIB;