Linux, Sockets and C

[tomek]

Hello

I got client-server application, client working in linux - server in
windows, but it doesn't matter. I want keeping connection for long time
and make reconnections in linux client, for example: when physical
connection between two machines is broken, client should be still alive,
and reconnect to server when this will be possible. I don't know, how
can I check current state of socket (connected/dissconnected) in linux.
my application is wrote in pure c, but it isn't problem to migrate to
c++ if this will be necessary. Now when I stop server I gets message:
"Broken pipe" and client crashes. I know - this is when i write two
times to non connected socked, but how can I check that socked is still
connected without read from server? (server should not reply, but if
this is only way, it will)

Somebody help me?

Regards
Tomek

 

[Jens.Toerring]

I got client-server application, client working in linux - server in
windows, but it doesn't matter. I want keeping connection for long time
and make reconnections in linux client, for example: when physical
connection between two machines is broken, client should be still alive,
and reconnect to server when this will be possible. I don't know, how
can I check current state of socket (connected/dissconnected) in linux.
my application is wrote in pure c, but it isn't problem to migrate to
c++ if this will be necessary. Now when I stop server I gets message:
"Broken pipe" and client crashes. I know - this is when i write two
times to non connected socked, but how can I check that socked is still
connected without read from server? (server should not reply, but if
this is only way, it will)

Since this is not a C related question (there are no network functions
in standard C and, as you write yourself, you could also write it in a
different language) you better ask in comp.os.linux.development.apps
or comp.unix.programmer - it's off-topic here.

Regards,Jens

 

[Merrill & Michele]

"tomek"
I got client-server application, client working in linux - server in
windows, but it doesn't matter. I want keeping connection for long time
and make reconnections in linux client, for example: when physical
connection between two machines is broken, client should be still alive,
and reconnect to server when this will be possible. I don't know, how
can I check current state of socket (connected/dissconnected) in linux.
my application is wrote in pure c, but it isn't problem to migrate to
c++ if this will be necessary. Now when I stop server I gets message:
"Broken pipe" and client crashes. I know - this is when i write two
times to non connected socked, but how can I check that socked is still
connected without read from server? (server should not reply, but if
this is only way, it will)

One is always happy to see new faces around here, but I think you'd find
better help in a newsgroup specific to linux. MPJ

 

[tomek]

Since this is not a C related question (there are no network functions
in standard C and, as you write yourself, you could also write it in a
different language) you better ask in comp.os.linux.development.apps
or comp.unix.programmer - it's off-topic here.

ok, i try there, but if somebody here could help me - please answer

Regads
Tomek

 

[Jens.Toerring]

ok, i try there, but if somebody here could help me - please answer

I'll try, but in the other place;-)
Regards, Jens