static int poll_fd = -1;
bool uloop_cancelled = false;
+static int uloop_status = 0;
static bool do_sigchld = false;
static struct uloop_fd_event cur_fds[ULOOP_MAX_EVENTS];
static int cur_fd, cur_nfds;
+int uloop_fd_add(struct uloop_fd *sock, unsigned int flags);
+
#ifdef USE_KQUEUE
#include "uloop-kqueue.c"
#endif
#include "uloop-epoll.c"
#endif
+static void waker_consume(struct uloop_fd *fd, unsigned int events)
+{
+ char buf[4];
+
+ while (read(fd->fd, buf, 4) > 0)
+ ;
+}
+
+static int waker_pipe = -1;
+static struct uloop_fd waker_fd = {
+ .fd = -1,
+ .cb = waker_consume,
+};
+
+static void waker_init_fd(int fd)
+{
+ fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC);
+ fcntl(fd, F_SETFL, fcntl(fd, F_GETFL) | O_NONBLOCK);
+}
+
+static int waker_init(void)
+{
+ int fds[2];
+
+ if (waker_pipe >= 0)
+ return 0;
+
+ if (pipe(fds) < 0)
+ return -1;
+
+ waker_init_fd(fds[0]);
+ waker_init_fd(fds[1]);
+ waker_pipe = fds[1];
+
+ waker_fd.fd = fds[0];
+ waker_fd.cb = waker_consume;
+ uloop_fd_add(&waker_fd, ULOOP_READ);
+
+ return 0;
+}
+
+int uloop_init(void)
+{
+ if (uloop_init_pollfd() < 0)
+ return -1;
+
+ if (waker_init() < 0) {
+ uloop_done();
+ return -1;
+ }
+
+ return 0;
+}
+
static bool uloop_fd_stack_event(struct uloop_fd *fd, int events)
{
struct uloop_fd_stack *cur;
}
+static void uloop_signal_wake(void)
+{
+ do {
+ if (write(waker_pipe, "w", 1) < 0) {
+ if (errno == EINTR)
+ continue;
+ }
+ break;
+ } while (1);
+}
+
static void uloop_handle_sigint(int signo)
{
+ uloop_status = signo;
uloop_cancelled = true;
+ uloop_signal_wake();
}
static void uloop_sigchld(int signo)
{
do_sigchld = true;
+ uloop_signal_wake();
}
static void uloop_install_handler(int signum, void (*handler)(int), struct sigaction* old, bool add)
uloop_process_delete(p);
}
-void uloop_run(void)
+int uloop_run(void)
{
static int recursive_calls = 0;
struct timeval tv;
if (!recursive_calls++)
uloop_setup_signals(true);
+ uloop_status = 0;
uloop_cancelled = false;
- while(!uloop_cancelled)
+ while (!uloop_cancelled)
{
uloop_gettime(&tv);
uloop_process_timeouts(&tv);
if (!--recursive_calls)
uloop_setup_signals(false);
+
+ return uloop_status;
}
void uloop_done(void)
{
- if (poll_fd < 0)
- return;
+ if (poll_fd >= 0) {
+ close(poll_fd);
+ poll_fd = -1;
+ }
- close(poll_fd);
- poll_fd = -1;
+ if (waker_pipe >= 0) {
+ uloop_fd_delete(&waker_fd);
+ close(waker_pipe);
+ close(waker_fd.fd);
+ waker_pipe = -1;
+ }
uloop_clear_timeouts();
uloop_clear_processes();