void execute_one_command(void)
{
int ret, i;
char cmd_str[256] = "";
if (!cur_action || !cur_command || is_last_command(cur_action, cur_command)) {
cur_action = action_remove_queue_head();
cur_command = NULL;
if (!cur_action)
return;
INFO("processing action %p (%s)\n", cur_action, cur_action->name);
cur_command = get_first_command(cur_action);
} else {
cur_command = get_next_command(cur_action, cur_command);
}
if (!cur_command)
return;
ret = cur_command->func(cur_command->nargs, cur_command->args);
if (klog_get_level() >= KLOG_INFO_LEVEL) {
for (i = 0; i < cur_command->nargs; i++) {
strlcat(cmd_str, cur_command->args[i], sizeof(cmd_str));
if (i < cur_command->nargs - 1) {
strlcat(cmd_str, " ", sizeof(cmd_str));
}
}
INFO("command '%s' action=%s status=%d (%s:%d)\n",
cmd_str, cur_action ? cur_action->name : "", ret, cur_command->filename,
cur_command->line);
}
}
int ueventd_main(int argc, char **argv)
{
struct pollfd ufd;
int nr;
char tmp[32];
/*
* init sets the umask to 077 for forked processes. We need to
* create files with exact permissions, without modification by
* the umask.
*/
umask(000);
/* Prevent fire-and-forget children from becoming zombies.
* If we should need to wait() for some children in the future
* (as opposed to none right now), double-forking here instead
* of ignoring SIGCHLD may be the better solution.
*/
signal(SIGCHLD, SIG_IGN);
open_devnull_stdio();
klog_init();
#if LOG_UEVENTS
/* Ensure we're at a logging level that will show the events */
if (klog_get_level() < KLOG_INFO_LEVEL) {
klog_set_level(KLOG_INFO_LEVEL);
}
#endif
union selinux_callback cb;
cb.func_log = log_callback;
selinux_set_callback(SELINUX_CB_LOG, cb);
INFO("starting ueventd\n");
/* Respect hardware passed in through the kernel cmd line. Here we will look
* for androidboot.hardware param in kernel cmdline, and save its value in
* hardware[]. */
import_kernel_cmdline(0, import_kernel_nv);
get_hardware_name(hardware, &revision);
ueventd_parse_config_file("/ueventd.rc");
snprintf(tmp, sizeof(tmp), "/ueventd.%s.rc", hardware);
ueventd_parse_config_file(tmp);
device_init();
ufd.events = POLLIN;
ufd.fd = get_device_fd();
while(1) {
ufd.revents = 0;
nr = poll(&ufd, 1, -1);
if (nr <= 0)
continue;
if (ufd.revents & POLLIN)
handle_device_fd();
}
}