static void send_child(unsigned i, char *line, char **cols)
{
const char *p;
struct iovec iov[2];
size_t l=strlen(line);
module_delids[i]=0;
for (p=MODULEDEL_DELID(cols); *p >= '0' && *p <= '9'; p++)
module_delids[i] = module_delids[i] * 10 + (*p - '0');
if (info[i].pid < 0) /* Failure in start_child */
{
terminated_child(i, module_delids[i]);
return;
}
iov[0].iov_base=(caddr_t)line;
iov[0].iov_len=l;
iov[1].iov_base="\n";
iov[1].iov_len=1;
if (writev(info[i].cmdpipe, iov, 2) != l+1)
{
clog_msg_prerrno();
/* This is usually because the process has terminated,
** but we haven't cleaned this up yet, but just make sure.
*/
kill(info[i].pid, SIGKILL);
}
info[i].isbusy=1;
}
static void clean_zombies() {
int pid, wstat;
while ((pid = waitpid(-1, &wstat, WNOHANG)) > 0) {
/* did this child terminate? */
if (WIFEXITED(wstat) || WIFSIGNALED(wstat)) {
#ifdef MC_DEBUG
if (WIFEXITED(wstat))
Dprintf("child %d terminated with %d\n", pid, WEXITSTATUS(wstat));
else
Dprintf("child %d terminated by signal %d\n", pid, WTERMSIG(wstat));
#endif
/* we can only flag at this point, since actually
removing the child would cause re-entrance issues.
So we let fork/collect clean up the child list. */
terminated_child(pid);
}
}
}
