void runCommand(char ** args) {
pid_t pid;
bool bg;
pid = fork();
bg = is_background(args);
if (pid < 0) {
/* error */
printf("Error in forking. We should check this out.");
} else if (pid == 0) {
/* Child */
if (execvp(args[0], args) < 0) {
printf("Could not find program or it failed in some way\n");
exit(1);
}
if (bg) {
/* should the child do something special when its in bg mode? */
free(args);
}
} else {
/* parent */
if (!bg) {
int status;
print_pid(pid);
while (wait(&status) != pid); /* wait for completion HITTAD DEN RAD ONLINE */
print_pid(pid);
free(args);
}
}
}
int execute(char **args)
{
if(args==NULL || args[0]==NULL)
return 1;
int i,len;
i=0;
len=num_bultin();
for(i=0;i<len;i++)
{
if(!strcmp(args[0],builtin_name[i]))
return (*builtin_function[i])(args);
}
int background=is_background(args);
int status=exec_child(args,background);
return status;
}
void runCommand(char ** args) {
pid_t pid;
bool bg;
pid = fork();
bg = is_background(args);
pipe(pipes[0]);
if (pid < 0) {
/* error */
printf("Error in forking. We should check this out.");
} else if (pid == 0) {
/* Child */
if (execvp(args[0], args) < 0) {
printf("Could not find program or it failed in some way\n");
exit(1);
}
if (bg) {
/* should the child do something special when its in bg mode? */
free(args);
}
char string[] = "hej";
close(pipes[0][READ]);
write(pipes[0][WRITE], string, strlen(string)+1);
close(pipes[0][WRITE]);
} else {
/* parent */
if (!bg) {
int status;
print_pid(pid);
while (wait(&status) != pid); /* wait for completion HITTAD DEN RAD ONLINE */
print_pid(pid);
free(args);
}
char msg[100];
close(pipes[0][WRITE]);
read(pipes[0][READ], msg, sizeof(msg));
close(pipes[0][READ]);
printf("pipe message: %s\n", msg);
}
}
void call_execve(char *path) { // create new process to execute to command
int child_state;
pid_t pid;
int background = is_background();
if ((pid = fork()) == 0) {
if (background) {
args[background] = NULL;
}
execv(path, args);
fprintf(stderr, "%s: command not found\n", args[0]);
exit(0);
} else if (pid > 0) {
if (!background) {
waitpid(pid, &child_state, 0);
write_to_log(pid);
}
} else {
perror("");
}
}
static bool is_valid(scalar_type const &v) { return is_in_range(v) && (is_foreground(v) || is_background(v)); }
static bool is_valid_background(scalar_type const &v) { return is_in_range(v) && is_background(v); }
