bugfix: EE_OPEN_WARNING could be statistically wrong

don't rely on imprecise my_file_opened | my_stream_opened,
scan the array for open handles instead.

also, remove my_print_open_files() and embed it in my_end()
to have one array scan instead of two.

include/my_sys.h

@@ -734,12 +734,6 @@ void my_create_backup_name(char *to, const char *from,
 extern int my_copystat(const char *from, const char *to, int MyFlags);
 extern char * my_filename(File fd);
 
-#ifdef EXTRA_DEBUG
-void my_print_open_files(void);
-#else
-#define my_print_open_files()
-#endif
-
 extern my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist);
 extern char *my_tmpdir(MY_TMPDIR *tmpdir);
 extern void free_tmpdir(MY_TMPDIR *tmpdir);

mysys/my_init.c

@@ -158,17 +158,33 @@ void my_end(int infoflag)
   }
 
   if ((infoflag & MY_CHECK_ERROR) || print_info)
-
   {                                     /* Test if some file is left open */
-    if (my_file_opened | my_stream_opened)
-    {
     char ebuff[512];
+    uint i, open_files, open_streams;
+
+    for (open_streams= open_files= i= 0 ; i < my_file_limit ; i++)
+    {
+      if (my_file_info[i].type == UNOPEN)
+        continue;
+      if (my_file_info[i].type == STREAM_BY_FOPEN ||
+          my_file_info[i].type == STREAM_BY_FDOPEN)
+        open_streams++;
+      else
+        open_files++;
+
+#ifdef EXTRA_DEBUG
+      fprintf(stderr, EE(EE_FILE_NOT_CLOSED), my_file_info[i].name, i);
+      fputc('\n', stderr);
+#endif
+    }
+    if (open_files || open_streams)
+    {
       my_snprintf(ebuff, sizeof(ebuff), EE(EE_OPEN_WARNING),
-                  my_file_opened, my_stream_opened);
+                  open_files, open_streams);
       my_message_stderr(EE_OPEN_WARNING, ebuff, ME_BELL);
       DBUG_PRINT("error", ("%s", ebuff));
-      my_print_open_files();
     }
+
 #ifdef CHECK_UNLIKELY
     end_my_likely(info_file);
 #endif

mysys/my_open.c

@@ -161,26 +161,3 @@ File my_register_filename(File fd, const char *FileName, enum file_type
   }
   DBUG_RETURN(-1);
 }
-
-
-
-
-#ifdef EXTRA_DEBUG
-
-void my_print_open_files(void)
-{
-  if (my_file_opened | my_stream_opened)
-  {
-    uint i;
-    for (i= 0 ; i < my_file_limit ; i++)
-    {
-      if (my_file_info[i].type != UNOPEN)
-      {
-        fprintf(stderr, EE(EE_FILE_NOT_CLOSED), my_file_info[i].name, i);
-        fputc('\n', stderr);
-      }
-    }
-  }
-}
-
-#endif