return fd;
}
+void clear_fd(int fd)
+{
+ fd_set fds;
+ struct timeval tv;
+ FD_ZERO(&fds);
+ FD_SET(fd, &fds);
+ tv.tv_sec = 0;
+ tv.tv_usec = 50000;
+ for(;;) {
+ int ret = select(fd+1, &fds, NULL, NULL, &tv);
+ if(ret > 0) {
+ char buffer[100];
+ ret = read(fd, buffer, sizeof(buffer));
+ }
+ else
+ break;
+ }
+}
+
int send_command(int tty_fd, cmd_t* cmd)
{
if(!cmd)
return ret;
}
-int main_loop(int tty_fd, int cmd_listen_fd, int autosample_fd, options_t* opt)
+int main_loop(int tty_fd, int cmd_listen_fd, autosample_process_t* autosample, options_t* opt)
{
log_printf(NOTICE, "entering main loop");
fd_set readfds, tmpfds;
FD_ZERO(&readfds);
+
+ clear_fd(tty_fd);
FD_SET(tty_fd, &readfds);
FD_SET(cmd_listen_fd, &readfds);
int max_fd = tty_fd > cmd_listen_fd ? tty_fd : cmd_listen_fd;
- FD_SET(autosample_fd, &readfds);
- max_fd = (max_fd < autosample_fd) ? autosample_fd : max_fd;
+
+ int autosample_enabled = 0;
+ if(autosample->pid_ > 0) {
+ clear_fd(autosample->write_fd_);
+ FD_SET(autosample->write_fd_, &readfds);
+ max_fd = (max_fd < autosample->write_fd_) ? autosample->write_fd_ : max_fd;
+ }
cmd_t* cmd_q = NULL;
client_t* client_lst = NULL;
client_add(&client_lst, new_fd);
}
- if(FD_ISSET(autosample_fd, &tmpfds)) {
- return_value = nonblock_readline(&autosample_buffer, autosample_fd, &cmd_q, client_lst, opt);
+ if(autosample->pid_ > 0 && FD_ISSET(autosample->write_fd_, &tmpfds)) {
+ return_value = nonblock_readline(&autosample_buffer, autosample->write_fd_, &cmd_q, client_lst, opt);
if(return_value == 2) {
log_printf(WARNING, "autosample not running, removing pipe to it");
- FD_CLR(autosample_fd, &readfds);
+ FD_CLR(autosample->write_fd_, &readfds);
return_value = 0;
continue;
}
if(cmd_q && !cmd_q->sent)
send_command(tty_fd, cmd_q);
+
+ if(autosample->pid_ > 0) {
+ lst = client_lst;
+ int listener_cnt = 0;
+ while(lst) {
+ if(lst->temp_listener || lst->photo_listener)
+ listener_cnt++;
+ lst = lst->next;
+ }
+ if((!autosample_enabled && listener_cnt > 0) ||
+ (autosample_enabled && listener_cnt == 0)) {
+ if(autosample_enabled) autosample_enabled = 0;
+ else autosample_enabled = 1;
+ int ret;
+ do {
+ ret = write(autosample->read_fd_, &autosample_enabled, 1);
+ } while(!ret || (ret == -1 && errno == EINTR));
+ }
+ }
}
cmd_clear(&cmd_q);
return ret;
}
- fd_set fds;
- struct timeval tv;
- FD_ZERO(&fds);
- FD_SET(fd, &fds);
- tv.tv_sec = 0;
- tv.tv_usec = 50000;
- for(;;) {
- ret = select(fd+1, &fds, NULL, NULL, &tv);
- if(ret > 0) {
- char buffer[100];
- ret = read(fd, buffer, sizeof(buffer));
- }
- else
- break;
- }
+ clear_fd(fd);
return 0;
}
fclose(pid_file);
}
- int autosample_fd = -1;
-// if(opt.led_filename_) {
+ autosample_process_t autosample;
+ autosample.pid_ = -1;
+ autosample.write_fd_ = -1;
+ autosample.read_fd_ = -1;
+ if(key_value_storage_length(&opt.autosampledevs_) > 0) {
log_printf(NOTICE, "starting autosample process");
- autosample_fd = start_autosample_process(&opt);
- if(autosample_fd == -1) {
+ int ret = start_autosample_process(&opt, &autosample);
+ if(ret == -1) {
options_clear(&opt);
log_close();
exit(1);
}
- else if(autosample_fd <= 0) {
- if(!autosample_fd)
- log_printf(NOTICE, "autosample process normal shutdown");
- else if(autosample_fd == -2)
- log_printf(NOTICE, "autosample shutdown after signal");
- else
- log_printf(NOTICE, "autosample shutdown after error");
-
- options_clear(&opt);
- log_close();
- exit(1);
- }
-// }
+ }
int cmd_listen_fd = init_command_socket(opt.command_sock_);
if(cmd_listen_fd < 0) {
if(ret)
ret = 2;
else
- ret = main_loop(tty_fd, cmd_listen_fd, autosample_fd, &opt);
+ ret = main_loop(tty_fd, cmd_listen_fd, &autosample, &opt);
}
if(ret == 2) {
close(cmd_listen_fd);
if(tty_fd > 0)
close(tty_fd);
+ if(autosample.pid_ > 0)
+ kill(autosample.pid_, SIGTERM);
if(!ret)
log_printf(NOTICE, "normal shutdown");