Hi,
This might seem like a very stupid question, but I really can't see any
reason in what I've seen. I have a helper function to release memory
within string sequences. It goes like this:
void
brutus_free_seq_string_content(BRUTUS_seq_string *strings)
{
int n;
if (!strings)
return;
for (n = 0; n < strings->_length; n++)
CORBA_free(strings->_buffer[n]);
CORBA_free(strings->_buffer);
strings->_maximum = 0;
strings->_length = 0;
strings->_buffer = NULL;
}
BRUTUS_seq_string is a typedef in the BRUTUS namespace:
typedef sequence<string> seq_string;
Memory has been allocated to a string sequence like this:
name_fields._maximum = 2;
name_fields._length = name_fields._maximum;
name_fields._buffer = BRUTUS_seq_string_allocbuf(name_fields._maximum);
name_fields._buffer[0] = CORBA_string_dup("Reply-To");
name_fields._buffer[1] = CORBA_string_dup("Content-MD5");
The "name_fields" variable is subsequently used as an "in" parameter to
a CORBA method. The problem is that I get a double free exception from
glibc when I invoke brutus_free_seq_string_content() on &name_fields
after it has been used.
The error comes from this line:
CORBA_free(strings->_buffer);
Why on earth is this happening? Does the CORBA method free the _buffer or what?
Thanks a lot in advance,
jules
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