void main()
{
char answer[100];
printf("Enter part to search for the name of the part\r\n\n");
printf("Enter number to search for the number of the part\r\n\n");
printf("enter change if you want to change the quantity of a current product\r\n\n");
printf("Enter add part to add an item to the database\r\n\n");
printf("If you want to read the whole database then please enter read\n\r\n");
printf("If you want to exit, enter quit\r\n\n");
gets(answer);
if(answer[0]=='N'||answer[0]=='n'){get_number();}
else if(answer[0]=='P'||answer[0]=='p'){get_part_name();}
else if(answer[0]=='C'||answer[0]=='c'){change_quantity();}
else if(answer[0]=='A'||answer[0]=='a'){add_part();}
else if(answer[0]=='R'||answer[0]=='r'){read_out();}
else if(answer[0]=='Q'||answer[0]=='q'){exit(0);}
else
{
printf("Answer was none of the statements , thank you for using this\r\n");
}
}
int main()
{
int ary[SIZE];
input(ary);
read_out(ary);
average(ary);
return 0;
}
void options()//show the options
{
int user_choice;
clear_screen();
fflush(stdin);
printf("Welcome to Film Genie version 1.0\r\n");
printf("Please input a number for the option\r\n");
printf("1.Play Film Genie\r\n");
printf("2.Help\r\n");
printf("3.Author\r\n");
printf("4.Exit\r\n");
scanf("%d",&user_choice);
dummy=getchar();
if(user_choice==1){read_file();}
if(user_choice==2){help();}
if(user_choice==3){author();}
if(user_choice==4){end_all();}
if(user_choice==5){read_out();}//mainly for diagnostics on the file
else
{printf("Please try again with a number specified\r\n");wait_for_user();options();}
}
pulsesequence()
{
get_parameters();
check_parameters();
set_powers();
calc_gradients();
if(!strcmp(bptype,"slice")) {
slice_timing();
} else if(!strcmp(bptype,"noslice")) {
noslice_timing();
}
status(A);
if (!strcmp(prep,"sr")) {
saturation_pulse();
} else if (!strcmp(prep,"ir")) {
inversion_pulse();
} else if (!strcmp(prep,"aps")) {
aps_pulse();
} else if (!strcmp(prep,"t1r")) {
spinlock_pulse();
} else {
delay(tr-te-p1/2.0);
}
if(!strcmp(bptype,"slice")) {
slice_offset();
status(B);
selective_90();
slice_compensate();
delay(dx);
selective_180();
delay(dy);
read_out();
} else if(!strcmp(bptype,"noslice")) {
status(B);
bp_noslice();
}
}
int main(int argc, char **argv)
{
int status = 0;
int child_pid = 0;
int child_count = 0;
int read_count = 0;
int write_count = 0;
int empty = 0;
int full = 0;
void *shm_addr = NULL;
int shm_id = 0;
int sem_id = 0;
shm_id = safe_shmget();
sem_id = safe_semget();
while ( child_count < 5 )
{
child_pid = fork();
if ( child_pid < 0 ) // error
{
perror("fork");
exit(-1);
}
else if ( child_pid == 0 ) // child
{
shm_id = safe_shmget();
sem_id = safe_semget();
struct buffer msg;
shm_addr = shmat(shm_id, NULL, 0);
if ( shm_addr == ( (void *) -1 ))
{
perror("shmat");
exit(-1);
}
if ( child_count < 2 ) // producer
{
while( write_count < 6 )
{
if(is_full(shm_addr))
{
simple_sleep();
continue;
}
p(sem_id);
fprintf(stdout, "child %d get into critical with empty count:%d\n", child_count, get_empty(shm_addr));
report(shm_addr);
do
{
if(is_full(shm_addr))
{
break;
}
bzero(&msg, sizeof(msg));
snprintf((char *)msg.msg, 128, "child %d is putting msg %d\n", child_count, write_count);
fprintf(stdout, "%s", msg.msg);
put_in(shm_addr, &msg);
write_count++;
}while(0);
report(shm_addr);
fprintf(stdout, "child %d get out of critical with empty count:%d\n", child_count, get_empty(shm_addr));
v(sem_id);
}
}
else // consumer
{
while ( read_count < 4 )
{
if ( is_empty(shm_addr) )
{
simple_sleep();
continue;
}
p(sem_id);
fprintf(stdout, "child %d get into critical with empty count:%d\n", child_count, get_empty(shm_addr));
report(shm_addr);
do
{
if ( is_empty(shm_addr) )
{
break;
}
bzero(&msg, sizeof(msg));
read_out(shm_addr, &msg);
fprintf(stdout, "child %d read out msg: %s\n", child_count, msg.msg);
read_count++;
}while(0);
report(shm_addr);
fprintf(stdout, "child %d get out of critical with empty count:%d\n", child_count, get_empty(shm_addr));
v(sem_id);
}
}
exit(0);
}
else //parent
{
child_count = child_count + 1;
continue;
}
}
for ( child_count=0; child_count<5; child_count++ )
{
wait();
}
safe_shmdel(shm_id);
safe_semdel(sem_id);
return 0;
}
