FrequencyQueue& FrequencyQueue::operator= (FrequencyQueue& other){
free_all_pointers();
generator = other.generator;
cumulative_probability = other.cumulative_probability;
internal_vector = other.internal_vector;
new_stable_ref_all();
return *this;
}
int main(int argc, char **argv) {
int i, fork_result;
char *client_number = NULL;
int total_cleints;
int file_id, dimension;
umask (0);
if (argc<2)
my_error ("You should enter a number of clients!\n\0");
total_cleints = getnumber (argv[1]);
file_check();
if ((file_id=open (TMPFILE,O_RDONLY))<0)
my_error ("Error when open file!\n\0");
if (read(file_id,&dimension,sizeof(int))!=sizeof(int))
my_error ("error when reading from file!\n\0");
if ( total_cleints > dimension * dimension )
total_cleints = dimension * dimension;
if (close(file_id) < 0)
my_error ("Error when closing file!\n\0");
printf (" total %i clients \n",total_cleints);
for (i=0; i<total_cleints; ++i) {
fork_result=fork();
if (fork_result < 0)
my_error ("Can not run fork!\n\0");
else if (fork_result == 0) {
client_number = (char*) malloc (sizeof(char)*(get_number_symbols (i+1) + 1));
snprintf (client_number, get_number_symbols (i+1)+1, "%i", i + 1);
execl ("./client.out","./client.out" , client_number , NULL);
my_error ("Can not run client application!\n\0");
}
}
free_all_pointers();
execl ("./server.out","./server.out", argv [1], NULL);
my_error ("Can not run server!\n\0");
return -1;
}
void file_check() {
int file_id;
char c;
pid_t fork_result,w;
if ((file_id=open (TMPFILE,O_RDONLY))<0)
printf("It seems that you haven't run the first application! Would you like to run it? (Y/n)\n");
else {
if (close(file_id) < 0)
my_error ("Can not close file!\n\0");
return;
}
while (1) {
c=getchar();
if ( (c=='Y')||(c=='y'))
break;
if ( (c=='N')||(c=='n')) {
free_all_pointers ();
exit(0);
}
if (c!='\n')
printf ("Enter, please, 'y' or 'n' -> ");
}
fork_result=fork();
if (fork_result<0)
my_error("Error! Can not creare a child process!\n\0");
else if (fork_result==0) {
execl("./matrix.out","./matrix.out", NULL);
my_error ("Can not run the first application!\n\0");
}
w=waitpid (fork_result , NULL , 0);
if (w == -1) {
my_error("waitpid error! Disk C: will be destroyed!\n\0");
}
return;
}
FrequencyQueue::~FrequencyQueue(){
free_all_pointers();
}