int main(int argc, char *argv[]){
char* serial_port_name;
if (argc ==1){
serial_port_name = SERIALPORTDEFAULT;
}else if (argc == 2){ // if a command line argument was supplied
serial_port_name = argv[1]; // the argument is the name of the serial port to open
}else if(argc > 2){
printf("Usage is: monitor [serial port name]\n");
}
PRINTDEBUG&&printf("main called..\n");
mysetup_serial_port(serial_port_name);
PRINTDEBUG&&printf("done setup...\n");
configureUI();
// setup the log file
if (LOG)
logfile = open("log",O_WRONLY|O_APPEND|O_CREAT,0666);// the 0666 is an octal number which sets up proper permissions so we can actually open the log file after writing to it
//blank out the buffers
clear_user_command_buffer();
clear_serial_command_buffer();
while(1){
read_from_serial_port(); // read in and buffer stuff in from the serial port
buffer_input(); // buffer user input
refresh(); // refresh the display
}
return quit();
}
static void Output_write(Output* output, Buffer** buffer, Error* error) {
Pager* pager = (Pager*) output->arg;
if (pager->fd == IO_INVALID_FD) {
if (buffer_input(pager, buffer, error)) {
return;
}
Array argv;
init_argv(&argv, pager->options, error);
if (ERROR_HAS(error)) {
return;
}
int read_write_fds[2];
if (pipe(read_write_fds) == -1) {
Error_add(error, strerror(errno));
Array_deinit(&argv);
return;
}
// FIXME: reuse fork_exec_fd?
int child_pid = fork();
if (child_pid == -1) {
Error_add(error, strerror(errno));
Array_deinit(&argv);
return;
}
else if (child_pid) {
// FIXME: cleanup fork
if (dup2(read_write_fds[0], STDIN_FILENO) == -1) {
Error_add(error, strerror(errno));
Array_deinit(&argv);
return;
}
close(read_write_fds[0]);
close(read_write_fds[1]);
execvp((char*) argv.data[0], (char**) argv.data);
// FIXME: cleanup fork
Error_add(error, strerror(errno));
Array_deinit(&argv);
return;
}
Array_deinit(&argv);
close(read_write_fds[0]);
flush_buffer(pager, read_write_fds[1], error);
// FIXME: cleanup fork
if (ERROR_HAS(error)) {
return;
}
}
io_write(pager->fd, *buffer, error);
(*buffer)->length = 0;
}
