void sh_start(char *name, int fd_toserver)
{
char msg[MSG_SIZE] = "";
print_prompt(name);
while (readline(0, msg, MSG_SIZE) >= 0) {
/*Check empty line*/
if (is_empty(msg)){
print_prompt(name);
continue;
}
sh_handle_input(msg ,fd_toserver);
memset(msg, 0, MSG_SIZE);
print_prompt(name);
}
}
//}
int main(int argc, char **argv)
{
user_chat_box_t use;
strcpy(use.name, argv[1]);
/* Extract pipe descriptors and name from argv */
//converting pipe file descriptors back to integers
int rd = atoi(argv[2]);
int wr = atoi(argv[3]);
//int rd = (int) strtol(argv[2], (char **)NULL, 10);
//int wr = (int) strtol(argv[3], (char **)NULL, 10);
//printf("rd %d wr %d\n", rd, wr);
//forking a child process to write commands to server
use.child_pid = fork();
if (use.child_pid == -1)
{
exit(-1);
}
//Child process writes commands to write end of pipe
else if (use.child_pid == 0)
{
//closing write end of pipe
close(wr);
char line[MSG_SIZE];
fcntl(rd, F_SETFL, O_NONBLOCK);
int nread;
while(1)
{
nread = read(rd, line, MSG_SIZE);
//printf("%d\n", nread);
usleep(1000);
if (nread > 0)
{
//printf("%d\n", nread);
printf("%s\n", line);
print_prompt(use.name);
}
}
}
//Parent process checks if there is anything was written from the server available to read.
else
{
//closing read end of pipe
close(rd);
char l[50];
char *line;
char chpd[50] = "\\child_pid \0";
int nwrite;
//writing child_pid command in order to feed the child_pid back to server
sprintf(l, "%d", getpid());
strcat(chpd, l);
write(wr, chpd, MSG_SIZE);
print_prompt(use.name);
while(1)
{
usleep(1000);
line = sh_read_line();
if (strlen(line) > 0)
{
if (sh_handle_input(line) == 1)
{
nwrite = write(wr, line, MSG_SIZE);
if (nwrite < 0)
{
printf("*** ERROR: Failed to write to pipe\n");
exit(1);
}
//close(wr);
}
else print_prompt(use.name);
line[0] = '\0';
}
}
}
}
