Hi,
I have three application programs communicating via named pipes
with each other, two of them have an xforms gui and contain an
io_callback function. Everthing works without any problems on
SUN/SGI/Linux. My message handler looks like:
void parent_process_handler( int fd, void *data )
/* handling of input over the pipe from parent process */
{ char *routine = "parent_process_handler";
int i, n;
char msg[256], tmp_msg[256], *first;
char command, *part;
int objno, objid, switch_on, com_error;
vector cen;
command = receive_from_p( parproc, tmp_msg, 256 );
for( first = tmp_msg; *first == ' '; first++);
strcpy(msg, first);
com_error = FALSE;
switch(command)
{ case '.': /* last command */
break;
case 'x': /* EXIT: parent enforces termination */
:
:
:
receive_from_p contains the read() command, the pipe is already open.
The main program contains
/* add parent process handler */
/*-----------------------------------------------------------------------*/
if( parproc )
fl_add_io_callback( parproc->fd_from_p, FL_READ, parent_process_handler,
NULL );
:
:
Matthias
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