Auto-merge from mysql-trunk.

4 files changed, 37 insertions, 17 deletions

diff --git a/include/my_global.h b/include/my_global.h
index 2a65c610604..41735f4e4f5 100644
--- a/include/my_global.h
+++ b/include/my_global.h
@@ -863,7 +863,7 @@ typedef SOCKET_SIZE_TYPE size_socket;
 #endif
 
 #ifndef OS_FILE_LIMIT
-#define OS_FILE_LIMIT	65535
+#define OS_FILE_LIMIT	UINT_MAX
 #endif
 
 /* #define EXT_IN_LIBNAME     */
diff --git a/include/mysql/plugin.h b/include/mysql/plugin.h
index 567734c1d5c..19cf0ed050d 100644
--- a/include/mysql/plugin.h
+++ b/include/mysql/plugin.h
@@ -593,30 +593,37 @@ void mysql_query_cache_invalidate4(MYSQL_THD thd,
                                    const char *key, unsigned int key_length,
                                    int using_trx);
 
-#ifdef __cplusplus
-}
-#endif
 
-#ifdef __cplusplus
 /**
   Provide a handler data getter to simplify coding
 */
-inline
-void *
-thd_get_ha_data(const MYSQL_THD thd, const struct handlerton *hton)
-{
-  return *thd_ha_data(thd, hton);
-}
+void *thd_get_ha_data(const MYSQL_THD thd, const struct handlerton *hton);
+
 
 /**
   Provide a handler data setter to simplify coding
+
+  @details
+  Set ha_data pointer (storage engine per-connection information).
+
+  To avoid unclean deactivation (uninstall) of storage engine plugin
+  in the middle of transaction, additional storage engine plugin
+  lock is acquired.
+
+  If ha_data is not null and storage engine plugin was not locked
+  by thd_set_ha_data() in this connection before, storage engine
+  plugin gets locked.
+
+  If ha_data is null and storage engine plugin was locked by
+  thd_set_ha_data() in this connection before, storage engine
+  plugin lock gets released.
+
+  If handlerton::close_connection() didn't reset ha_data, server does
+  it immediately after calling handlerton::close_connection().
 */
-inline
-void
-thd_set_ha_data(const MYSQL_THD thd, const struct handlerton *hton,
-                const void *ha_data)
-{
-  *thd_ha_data(thd, hton)= (void*) ha_data;
+void thd_set_ha_data(MYSQL_THD thd, const struct handlerton *hton,
+                     const void *ha_data);
+#ifdef __cplusplus
 }
 #endif
 
diff --git a/include/mysql/plugin.h.pp b/include/mysql/plugin.h.pp
index 5dad31bd008..3a1b03742da 100644
--- a/include/mysql/plugin.h.pp
+++ b/include/mysql/plugin.h.pp
@@ -165,3 +165,6 @@ void thd_get_xid(const void* thd, MYSQL_XID *xid);
 void mysql_query_cache_invalidate4(void* thd,
                                    const char *key, unsigned int key_length,
                                    int using_trx);
+void *thd_get_ha_data(const void* thd, const struct handlerton *hton);
+void thd_set_ha_data(void* thd, const struct handlerton *hton,
+                     const void *ha_data);
diff --git a/include/mysql_com.h b/include/mysql_com.h
index c510c12dbf7..90fe4ac1995 100644
--- a/include/mysql_com.h
+++ b/include/mysql_com.h
@@ -307,6 +307,16 @@ typedef struct st_net {
   /** Client library sqlstate buffer. Set along with the error message. */
   char sqlstate[SQLSTATE_LENGTH+1];
   void *extension;
+#if defined(MYSQL_SERVER) && !defined(EMBEDDED_LIBRARY)
+  /*
+    Controls whether a big packet should be skipped.
+
+    Initially set to FALSE by default. Unauthenticated sessions must have
+    this set to FALSE so that the server can't be tricked to read packets
+    indefinitely.
+  */
+  my_bool skip_big_packet;
+#endif
 } NET;