Signaler::OnIntr( SignalFunc, void * )

Register a function and argument to be called when an interrupt signal is received.

Virtual?	No
Class	Signaler
Arguments	SignalFunc callback	Pointer to a function to call on receipt of an interrupt signal. The function must have the prototype voidfunc( void *ptr )
	void *ptr	Pointer to a data item to pass to the callback function when invoking it.
Returns	void

Notes

Functions are called in the reverse order that they are registered.

See also

Signaler::DeleteOnIntr()Signaler::Intr()

Example

#include <unistd.h>     // for sleep()
#include <stdhdrs.h>
#include <strbuf.h>
#include <signaler.h>

class MyClass
{
    public:
    void         Set( StrPtr *d ) { data = *d; }
    const StrPtr *Get()           { return &data; }
    void         Identify()       { printf( "I'm %s\n", data.Text() ); }

    private:
    StrBuf       data;
};

static void InterruptHandler( void *p )
{
    MyClass      *m = ( MyClass * )p;
    m->Identify();
}

int main( int argc, char **argv )
{
    for ( int i = 1; i <= 5; i++ )
    {
        StrBuf data;

        data.Set( "Object" );
        data << i;

        MyClass *p = new MyClass;
        p->Set( &data );

        signaler.OnIntr( InterruptHandler, ( void * )p );
    }

    printf( "Hit ^C to fire the interrupt handler\n" );
    for ( ; ; )
        sleep( 60 );

    exit( 0 );
}