How to diagnose Cygwin / Windows shutdown problem
Andrew DeFaria
ADeFaria@Salira.com
Thu Jul 24 04:14:00 GMT 2003
Randall R Schulz wrote:
> Andrew,
>
> Cygwin apps don't have a Windows event handler do they?
To tell you the truth... I don't know for sure.
> The two programming models (Win32 and POSIX) are fundamentally
> different, so based on my very limited understanding, it seems that
> Cygwin itself (code in Cygwin1.dll) would have to intercept these
> OS-generated events and translate them into POSIX signals (SIGUP, say).
Makes sense to me! I would suspect that when one clicks on the close
button in the window frame that generates a Windows event that is
translated somehow to send a kill signal to the shell. If true then
there is already a mechanism for Win Event -> POSIX signal.
>
>
> Randall Schulz
>
>
> At 17:16 2003-07-23, Andrew DeFaria wrote:
>
>> Randall R Schulz wrote:
>>
>>> Cygwin apps don't know about and cannot respond to the
>>> system-generated messages that request that applications quit in
>>> preparation for the system to shut down or the user to log off.
>>
>>
>> "Cannot respond to"? When a system-generated message that requests
>> that applications quit in preparation for the systme to shut down or
>> the user to log off why can Cygwin apps (in particular bash or other
>> shell) simply do what it would have done if TMOUT was just triggered?
>>
>> TMOUT If set to a value greater than zero, TMOUT is treated
>> as the
>> default timeout for the read builtin. The select
>> command termi-
>> nates if input does not arrive after TMOUT seconds when
>> input is
>> coming from a terminal. In an interactive shell, the
>> value is
>> interpreted as the number of seconds to wait for
>> input after
>> issuing the primary prompt. Bash terminates after
>> waiting for
>> that number of seconds if input does not arrive.
>
>
>
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