#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

/*
 * faster_speller.c -- conceptual faster version of a serial speller 
 */

int loaded = 0;

void load_dict()
{
   sleep(5);
   loaded = 1;
}

void *thread_load(void *data)
{
   load_dict();
   pthread_exit(NULL);
}

// phony suggest: return what is passed
char *suggest(char *word)
{
   return word;
}
   
int main ( int argc, char *argv[] )
{
   char line[128];

   int retval;
   pthread_t tid;

   if ( argc > 1 && !strcmp(argv[1], "-s") ) {  // serial/slow version
      load_dict();
   } else {
      // create a thread to load dictionary
      retval = pthread_create(&tid, NULL, thread_load, NULL);
   }

   fprintf(stdout, "> ");
   fflush(stdout);

   while ( !loaded ) {
      usleep(100000);
   }

   while ( fgets(line, sizeof(line), stdin) ) {
      fprintf(stdout, "%s", suggest(line));
      fprintf(stdout, "> ");
   }
}