bool pipex_readln_nb(pipex_t *pipex, char *string){
while(!pipex->io->in_eof && !io_line_ready(pipex->io) && io_peek(pipex->io)){
io_get_update(pipex->io);
}
if(io_line_ready(pipex->io)){
return pipex_readln(pipex,string);
}else if(pipex->io->in_eof){
string[0]='\0';
pipex->state|=PIPEX_EOF;
return FALSE;
}else {
string[0]='\0';
return FALSE;
}
}
static void adapter_step() {
fd_set set[1];
int fd_max;
int val;
// process buffered lines
while (io_line_ready(XBoard->io)) xboard_step(); // process available xboard lines
while (io_line_ready(Engine->io)) engine_step(); // process available engine lines
// init
FD_ZERO(set);
fd_max = -1; // HACK
// add xboard input
ASSERT(XBoard->io->in_fd>=0);
FD_SET(XBoard->io->in_fd,set);
if (XBoard->io->in_fd > fd_max) fd_max = XBoard->io->in_fd;
// add engine input
ASSERT(Engine->io->in_fd>=0);
FD_SET(Engine->io->in_fd,set);
if (Engine->io->in_fd > fd_max) fd_max = Engine->io->in_fd;
// wait for something to read (no timeout)
ASSERT(fd_max>=0);
val = select(fd_max+1,set,NULL,NULL,NULL);
if (val == -1 && errno != EINTR) my_fatal("adapter_step(): select(): %s\n",strerror(errno));
if (val > 0) {
if (FD_ISSET(XBoard->io->in_fd,set)) io_get_update(XBoard->io); // read some xboard input
if (FD_ISSET(Engine->io->in_fd,set)) io_get_update(Engine->io); // read some engine input
}
}
void engine_get(engine_t * engine, char string[], int size) {
ASSERT(engine_is_ok(engine));
ASSERT(string!=NULL);
ASSERT(size>=256);
while (!io_line_ready(engine->io)) {
io_get_update(engine->io);
}
if (!io_get_line(engine->io,string,size)) { // EOF
exit(EXIT_SUCCESS);
}
}
bool pipex_readln(pipex_t *pipex, char *string){
while (!io_line_ready(pipex->io)) {
io_get_update(pipex->io);
}
if (!io_get_line(pipex->io,string,StringSize)) { // EOF
string[0]='\0';
pipex->state|=PIPEX_EOF;
return FALSE;
}
if(strncmp(PIPEX_MAGIC,string,strlen(PIPEX_MAGIC))==0){
my_fatal("%s\n",string+strlen(PIPEX_MAGIC)+1);
}
return TRUE;
}
