int main(int argc, char **argv){
if( argc != 4 ){
printf( "Must specify a Database File, book order file, and a category names. \n Feel Free to refer to the readme for usage.\n" );
_exit( 1 ); // crash and burn
}
FILE *fp;
if( (fp = fopen(argv[1], "r") ) == NULL ) {
printf("fopen didn't work in %s line %d.\n", __FILE__ , __LINE__ );
printf("Please Enter Valid Database File \n");
_exit(1); // crash and burn
}
else if( (fp = fopen(argv[2], "r") ) == NULL ) {
printf("fopen didn't work in %s line %d.\n", __FILE__ , __LINE__ );
printf("Please Enter Valid Book Order File \n");
_exit(1); // crash and burn
}
else if( (fp = fopen(argv[3], "r") ) == NULL ) {
printf("fopen didn't work in %s line %d.\n", __FILE__ , __LINE__ );
printf("Please Enter Valid Category File \n");
_exit(1); // crash and burn
}
/* Done with error checking. */
fp = fopen(argv[1], "r");
int fSize;
fseek(fp, 0L, SEEK_END);
fSize = ftell(fp);
fseek(fp, 0 , SEEK_SET);
if(fSize == 0){
printf("The database file is empty, cannot procceed \n");
_exit(1);
}
customerList = readDatabase(fp);
if( (error = fclose( fp ) ) > 0 ){
printf("fclose died in %s line %d: %s \n", __FILE__ , __LINE__ , strerror(error));
_exit(1); // crash and burn
}
totalProfit = 0;
/*
this gives us the full set of orders that we can
then separate into the array of smaller queues based on the category.
*/
fp = fopen(argv[3], "r");
fseek(fp, 0L, SEEK_END);
fSize = ftell(fp);
fseek(fp , 0 , SEEK_SET);
if(fSize == 0){
printf("The category file is empty, cannot procceed \n");
_exit(1);
}
numcats = readCategories(fp);
categoryList = (category*)malloc(sizeof(category)*numcats);
fillCategory(fp);
if(( error = fclose( fp ) )> 0 ){
printf("fclose stuck it's nose where it didn't belong in %s line %d: %s\n", __FILE__ , __LINE__ , strerror( error ) );
_exit(1); // crash and burn
}
fp = fopen(argv[2], "r");
pthread_t tid;
if ((error = pthread_create( &tid, NULL , readBookOrders , fp ))){
printf( "pthread_create() sparked the flames of revolution in %s line %d: %s\n", __FILE__ , __LINE__ , strerror( error ) );
_exit( 1 ); // crash and burn
}
createThreads();
/*create the consumer threads to wait for the producer,
force a join on the producer after we create the consumers
that way all threads are guaranteed to finish.
*/
if ((error = pthread_join(tid, NULL))) {
printf( "pthread_join()ed the dark side in %s line %d: %s \n", __FILE__, __LINE__, strerror( error ) );
_exit(1); // crash and burn
}
if( (error = fclose(fp) ) > 0 ) {
printf("fclose was beaten down by the mob in %s line %d: %s \n", __FILE__ , __LINE__ , strerror( error ) );
_exit(1); // crash and burn
}
finalReport();
free(categoryList);
printf("Total Revenue Gained: \x1b[32m$\x1b[0m%.2lf\n", totalProfit);
return 0; //success
}
~Performance() { finalReport(); }
