/*!
* add a child
* @return pointer to struct server_child_data on success, NULL on error
*/
afp_child_t *server_child_add(server_child_t *children, pid_t pid, int ipc_fd)
{
afp_child_t *child = NULL;
pthread_mutex_lock(&children->servch_lock);
/* it's possible that the child could have already died before the
* pthread_sigmask. we need to check for this. */
if (kill(pid, 0) < 0) {
LOG(log_error, logtype_default, "server_child_add: no such process pid [%d]", pid);
goto exit;
}
/* if we already have an entry. just return. */
if ((child = server_child_resolve(children, pid)))
goto exit;
if ((child = calloc(1, sizeof(afp_child_t))) == NULL)
goto exit;
child->afpch_pid = pid;
child->afpch_ipc_fd = ipc_fd;
child->afpch_logintime = time(NULL);
hash_child(children->servch_table, child);
children->servch_count++;
exit:
pthread_mutex_unlock(&children->servch_lock);
return child;
}
/*!
* add a child
* @return pointer to struct server_child_data on success, NULL on error
*/
afp_child_t *server_child_add(server_child *children, int forkid, pid_t pid, int ipc_fd)
{
server_child_fork *fork;
afp_child_t *child = NULL;
sigset_t sig, oldsig;
/* we need to prevent deletions from occuring before we get a
* chance to add the child in. */
sigemptyset(&sig);
sigaddset(&sig, SIGCHLD);
pthread_sigmask(SIG_BLOCK, &sig, &oldsig);
/* it's possible that the child could have already died before the
* pthread_sigmask. we need to check for this. */
if (kill(pid, 0) < 0) {
LOG(log_error, logtype_default, "server_child_add: no such process pid [%d]", pid);
goto exit;
}
fork = (server_child_fork *) children->fork + forkid;
/* if we already have an entry. just return. */
if ((child = resolve_child(fork->table, pid)))
goto exit;
if ((child = calloc(1, sizeof(afp_child_t))) == NULL)
goto exit;
child->pid = pid;
child->valid = 0;
child->killed = 0;
child->ipc_fd = ipc_fd;
hash_child(fork->table, child);
children->count++;
exit:
pthread_sigmask(SIG_SETMASK, &oldsig, NULL);
return child;
}
