URL:
<http://savannah.nongnu.org/patch/?6895>
Summary: Improved malloc behaviour when expanding used area
Project: AVR C Runtime Library
Submitted by: sternst
Submitted on: Do 13 Aug 2009 13:07:25 GMT
Category: None
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
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Details:
This is a patch as a suggestion related to topic #1 in bug report #27235
<https://savannah.nongnu.org/bugs/?27235>
Situation:
a = malloc(10);
b = malloc(10);
free(b);
Now there is a free chunk at the end of the used area of the heap.
b = malloc(20);
The new request can not be satisfied by any free chunk, therefore the used
area needs to be expanded.
Current code:
The request is satisfied completely with fresh new memory from the expansion.
Result: there is a free chunk between a and b, and the used area is bigger
than necessary.
Patch:
The free chunk at the end of the used area is delivered to the request and
the expansion is made only for the remaining part.
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File Attachments:
-------------------------------------------------------
Date: Do 13 Aug 2009 13:07:25 GMT Name: malloc.diff Size: 859B By:
sternst
<http://savannah.nongnu.org/patch/download.php?file_id=18567>
_______________________________________________________
Reply to this item at:
<http://savannah.nongnu.org/patch/?6895>
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