[openamq-dev] Only a single thread may register signals.

[Jonathan Schultz]

There are two ways to solve this issue.

1. Decide that OpenAMQ will respond to SIGINT by just dumping everything
immediately.  In this case there is no need to register any signals at all
- just let the default handler shut everything down abruptly.

2. Do it properly.  On SIGINT OpenAMQ should abort all transfers in
process and close all connections cleanly, including all appropriate
handshaking.  Presumably if a second SIGINT is received during this
process then an abrupt shutdown is the most appropriate.

The problem is that as it stands SMT cannot do 2.  To make it work would
require some non-trivial changes to some internal data structures.

So given that no-one seems to mind the lack of clean shutdown on SIGINT,
I'd suggest simply removing all registering of signals.

Jonathan


> Hi,
>
> No, there is no way to switch the warning off. However, you can modify
> the source code and remove it altogether.
>
> Corresponding code can be found in base2/smt/smt_singal.c:
>
>     if (thread != s_signal_thread) {
>         icl_console_print ("Only a single thread may register signals.");
>         rc = -1;
>     }
>
>
> Martin
>
> Malinga wrote:
>> Hi,
>>
>>  But is there any way to get rid of that warning.
>>
>> -Malinga
>>
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