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Amend af784385b4: Avoid vtable overhead

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When neither MSAN nor Valgrind are enabled, declare
Field::mark_unused_memory_as_defined() as an empty inline function,
instead of declaring it as a virtual function.
This commit is contained in:
Marko Mäkelä
2020-05-15 17:09:20 +03:00
parent 1cac6d4828
commit ff66d65a09
3 changed files with 16 additions and 5 deletions
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7
sql/field.cc
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@ -1,6 +1,6 @@
/*
Copyright (c) 2000, 2017, Oracle and/or its affiliates.
Copyright (c) 2008, 2017, MariaDB
Copyright (c) 2008, 2020, MariaDB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -7772,11 +7772,14 @@ my_decimal *Field_varstring::val_decimal(my_decimal *decimal_value)
}
#ifdef HAVE_valgrind_or_MSAN
void Field_varstring::mark_unused_memory_as_defined()
{
uint used_length __attribute__((unused)) = get_length();
uint used_length= get_length();
MEM_MAKE_DEFINED(get_data() + used_length, field_length - used_length);
}
#endif
int Field_varstring::cmp_max(const uchar *a_ptr, const uchar *b_ptr,