Обсуждение: Debugger

Hello,<br />I am with a problem. When I am using debugger, breakpoints that they are inside of main function (stop the
executionin the marked point) but when breakpoint is marked in another archive (index.c for example) breakpoint does
notfunction (the execution in the point does not stop), because this happens?<br /><br />Thanks,<br />Pedro Belmino.<br
/>

Pedro Belmino wrote:
> I am with a problem. When I am using debugger, breakpoints that they
> are inside of main function (stop the execution in the marked point)
> but when breakpoint is marked in another archive (index.c for
> example) breakpoint does not function (the execution in the point
> does not stop), because this happens?

There is a fork() happen between the main function and what you are 
probably looking for break at.  You need to attach to the session 
process after it forks, not to the main postmaster process.

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/

Peter Eisentraut schrieb:
> Pedro Belmino wrote:
>   
>> I am with a problem. When I am using debugger, breakpoints that they
>> are inside of main function (stop the execution in the marked point)
>> but when breakpoint is marked in another archive (index.c for
>> example) breakpoint does not function (the execution in the point
>> does not stop), because this happens?
>>     
>
> There is a fork() happen between the main function and what you are 
> probably looking for break at.  You need to attach to the session 
> process after it forks, not to the main postmaster process.
>
>   
If you just want a single backend, and entering sql commands to the
"backend>" prompt is enough for you, you should consider using the
command line argument --single DATABASE for debugging.

see also:

http://developer.postgresql.org/pgdocs/postgres/app-postgres.html

-Hannes