Hi All,

Ezzel a dátummal: Thursday 13 March 2008 00.37.00 Timothy Wall ezt írta:

Opps, thanks a lot, its true. Unfortunately this not helps for me:(

I see the manual and I don't understand how can I pass a signal address from java to native c?

original c code snippet is:

saio.sa_handler = signal_handler_IO; sigemptyset(&saio.sa_mask); //saio.sa_mask = 0; saio.sa_flags = 0; saio.sa_restorer = NULL; sigaction(SIGIO,&saio,NULL);

saio is a struct sigaction : __sighandler_t sa_handler; /* Additional set of signals to be blocked. */ __sigset_t sa_mask; /* Special flags. */ int sa_flags; /* Restore handler. */ void (*sa_restorer) (void);

__sighandler is a pointer to signal function in my java code

public interface SignalHandler_t extends Callback { public void callback(int signal); }

SigAction_t in java: public static class SigActionStruct extends Structure { public SignalHandler_t sa_handler; public SigSet_t sa_mask; public int sa_flags; public SignalRestorer sa_restorer; }

and I create Sigaction:

SignalHandler_t signal = new SignalHandler_t (){ @Override public void callback(int signal) { int st = 0; CLibrary.INSTANCE.ioctl(dev, CLibrary.TIOCMGET, st); st &= ~CLibrary.TIOCM_RTS; CLibrary.INSTANCE.ioctl(dev, CLibrary.TIOCMSET, st); st |= CLibrary.TIOCM_RTS; CLibrary.INSTANCE.ioctl(dev, CLibrary.TIOCMSET, st); }};

and I fill SigActionStruct: SigActionStruct saio = new SigActionStruct(); saio.sa_handler = this.signal; CLibrary.INSTANCE.sigemptyset(saio.sa_mask); saio.sa_flags = 0; saio.sa_restorer = null; int saRes = CLibrary.INSTANCE.sigaction(CLibrary.SIGIO, saio, null);

original sigaction in c:

extern int sigaction (int __sig, __const struct sigaction *__restrict __act, struct sigaction *__restrict __oact) __THROW;

which mean restrict_act and restrict_oact is pointers!

java sigaction of library declaration is: int sigaction (int sig, SigActionStruct act, SigActionStruct oact);

I tried : int sigaction (int sig, Pointer act, Pointer oact); and int saRes = CLibrary.INSTANCE.sigaction(CLibrary.SIGIO, saio.getPointer(), null);

but it doesn't help:(

Could somebody ever used signal callback ? Is there an example somewhere? google and codesearch.google cannot help:(