int my_exec(t_config *conf, char *line, int *ret)
{
t_ll_list commands;
int sig;
t_ll_node *w;
ll_init_list(&commands);
sig = MYSH_SIGNAL_NOPE;
split_commands(&commands, line, ";", 0);
w = commands.head;
while (w)
{
if (*((char *)w->data) &&
(sig = manage_conditions(w->data, conf, ret)) == MYSH_SIGNAL_EXIT)
break;
w = w->next;
}
ll_clear_list(&commands, free);
return (sig);
}
int exec() {
int pid;
int pipe_sdf[2];
int there_was_pipe;
int new_input;
int i;
int bcg;
int status;
command_s* cmds;
there_was_pipe = 0;
new_input = -1;
bcg = in_background(input_buf+beg);
cmds = split_commands(input_buf+beg);
if(cmds[0].argv==NULL) {
return 0;
}
sigprocmask(SIG_BLOCK, &block_sig, NULL);
if(shell_commands(cmds[0])) {
sigprocmask(SIG_UNBLOCK, &block_sig, NULL);
return 1;
}
there_was_pipe = 0;
chld_pids_size = 0;
chld_active = 0;
new_input = -1;
for(i = 0; cmds[i].argv != NULL; i++) {
if(cmds[i+1].argv != NULL) { /* mamy pipe'a */
pipe(pipe_sdf);
there_was_pipe = 1;
}
chld_pids_size++;
chld_active++;
pid = fork();
if(pid == 0) {
sigaction(SIGINT, &default_sigint_action, NULL);
sigaction(SIGCHLD, &default_sigchld_action, NULL);
/* tworzenie nowej sesji */
if(bcg) setsid();
/* wpp odblokowujemy SIGCHLD */
sigprocmask(SIG_UNBLOCK, &block_sig, NULL);
/*trzeba przekierowac wyjscie*/
if(there_was_pipe) {
dup2(pipe_sdf[1], STDOUT_FILENO);
close(pipe_sdf[1]);
close(pipe_sdf[0]);
}
/*przek wyjscia*/
if(new_input != -1) {
dup2(new_input, STDIN_FILENO);
close(new_input);
}
/*wywolywanie pojedynczej komendy*/
exec_one(cmds[i]);
} else if(pid > 0) {
if(!bcg) chld_pids[i] = pid;
if(there_was_pipe) {
close(new_input);
close(pipe_sdf[1]);
}
}
if(there_was_pipe) {
new_input = pipe_sdf[0];
}
there_was_pipe = 0;
}
if(!bcg) {
while(chld_active > 0) {
sigsuspend(&wait_for_us);
/* ---FOR LINUX---
pid = waitpid(-1,&status,0);
bcg = 1;
if (pid <= 0) {
continue;
}
for (i=0;i<chld_pids_size;i++) if(chld_pids[i] == pid) bcg = 0;
if (!bcg) {
chld_active--;
} else if (ended_processes < MAX_COMMANDS) {
save_process(pid,status);
}*/
}
}
chld_pids_size = 0;
sigprocmask(SIG_UNBLOCK, &block_sig, NULL);
return 1;
}
