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IQFeed 3rd Party Software Support » IQFeed Client and IPWorks - Free Heap Block Error May 14, 2012 12:57 AM (Total replies: 2)

I am note sure what is generating the outputdebug, I thought it might be the iqfeed client actually.

I have not had this problem with the socket control for other projects.

IQFeed 3rd Party Software Support » IQFeed Client and IPWorks - Free Heap Block Error May 8, 2012 01:45 AM (Total replies: 2)

Hi

I am a 3rd party developer using ipworks (http://www.nsoftware.com/ipworks/) TCP/IP Delphi component to connect to IQFeed 4.8 ( using sockets on localhost (127.0.0.1)

I am making a request for history to the IQFeed client (HD,... ) and once the history is received, I disconnect the socket and free the socket connection.

PROBLEM: After I free the socket (IPWorks Socket) in our program, IQFeed outputs the following in the outputdebug log.

HEAP[???.exe]
HEAP: Free Heap block 1da81da0 modified at 1da81e2c after it was freed
Ignoring Non-user Breakpoint at $76FD04E5.


If I do not free the socket (and cause a memory leak) the error does not occur.

It appears that IQFeed is modifying some memory after its been free'd.

Any thoughts ?

p.s. When this error occurs we sometime get random memory problems in the program as the memory that is over written is sometimes being used by something else.


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