#endif
#ifdef USE_EPOLL
#include <sys/epoll.h>
+#include <sys/timerfd.h>
#endif
#include <sys/wait.h>
static struct list_head timeouts = LIST_HEAD_INIT(timeouts);
static struct list_head processes = LIST_HEAD_INIT(processes);
+static struct list_head signals = LIST_HEAD_INIT(signals);
static int poll_fd = -1;
bool uloop_cancelled = false;
#include "uloop-epoll.c"
#endif
-static void waker_consume(struct uloop_fd *fd, unsigned int events)
+static void set_signo(uint64_t *signums, int signo)
{
- char buf[4];
+ if (signo >= 1 && signo <= 64)
+ *signums |= (1u << (signo - 1));
+}
+
+static bool get_signo(uint64_t signums, int signo)
+{
+ return (signo >= 1) && (signo <= 64) && (signums & (1u << (signo - 1)));
+}
+
+static void signal_consume(struct uloop_fd *fd, unsigned int events)
+{
+ struct uloop_signal *usig, *usig_next;
+ uint64_t signums = 0;
+ uint8_t buf[32];
+ ssize_t nsigs;
+
+ do {
+ nsigs = read(fd->fd, buf, sizeof(buf));
+
+ for (ssize_t i = 0; i < nsigs; i++)
+ set_signo(&signums, buf[i]);
+ }
+ while (nsigs > 0);
- while (read(fd->fd, buf, 4) > 0)
- ;
+ list_for_each_entry_safe(usig, usig_next, &signals, list)
+ if (get_signo(signums, usig->signo))
+ usig->cb(usig);
}
static int waker_pipe = -1;
static struct uloop_fd waker_fd = {
.fd = -1,
- .cb = waker_consume,
+ .cb = signal_consume,
};
static void waker_init_fd(int fd)
waker_pipe = fds[1];
waker_fd.fd = fds[0];
- waker_fd.cb = waker_consume;
+ waker_fd.cb = signal_consume;
uloop_fd_add(&waker_fd, ULOOP_READ);
return 0;
int uloop_fd_delete(struct uloop_fd *fd)
{
+ int ret;
int i;
for (i = 0; i < cur_nfds; i++) {
uloop_fd_set_cb(fd, 0);
fd->registered = false;
- fd->flags = 0;
uloop_fd_stack_event(fd, -1);
- return __uloop_fd_delete(fd);
+ ret = __uloop_fd_delete(fd);
+ fd->flags = 0;
+
+ return ret;
}
static int64_t tv_diff(struct timeval *t1, struct timeval *t2)
}
-static void uloop_signal_wake(void)
+int uloop_interval_set(struct uloop_interval *timer, unsigned int msecs)
+{
+ return timer_register(timer, msecs);
+}
+
+int uloop_interval_cancel(struct uloop_interval *timer)
+{
+ return timer_remove(timer);
+}
+
+int64_t uloop_interval_remaining(struct uloop_interval *timer)
{
+ return timer_next(timer);
+}
+
+static void uloop_signal_wake(int signo)
+{
+ uint8_t sigbyte = signo;
+
+ if (signo == SIGCHLD)
+ do_sigchld = true;
+
do {
- if (write(waker_pipe, "w", 1) < 0) {
+ if (write(waker_pipe, &sigbyte, 1) < 0) {
if (errno == EINTR)
continue;
}
{
uloop_status = signo;
uloop_cancelled = true;
- uloop_signal_wake();
-}
-
-static void uloop_sigchld(int signo)
-{
- do_sigchld = true;
- uloop_signal_wake();
+ uloop_signal_wake(signo);
}
static void uloop_install_handler(int signum, void (*handler)(int), struct sigaction* old, bool add)
uloop_install_handler(SIGTERM, uloop_handle_sigint, &old_sigterm, add);
if (uloop_handle_sigchld)
- uloop_install_handler(SIGCHLD, uloop_sigchld, &old_sigchld, add);
+ uloop_install_handler(SIGCHLD, uloop_signal_wake, &old_sigchld, add);
uloop_ignore_signal(SIGPIPE, add);
}
+int uloop_signal_add(struct uloop_signal *s)
+{
+ struct list_head *h = &signals;
+ struct uloop_signal *tmp;
+ struct sigaction sa;
+
+ if (s->pending)
+ return -1;
+
+ list_for_each_entry(tmp, &signals, list) {
+ if (tmp->signo > s->signo) {
+ h = &tmp->list;
+ break;
+ }
+ }
+
+ list_add_tail(&s->list, h);
+ s->pending = true;
+
+ sigaction(s->signo, NULL, &s->orig);
+
+ if (s->orig.sa_handler != uloop_signal_wake) {
+ sa.sa_handler = uloop_signal_wake;
+ sa.sa_flags = 0;
+ sigemptyset(&sa.sa_mask);
+ sigaction(s->signo, &sa, NULL);
+ }
+
+ return 0;
+}
+
+int uloop_signal_delete(struct uloop_signal *s)
+{
+ if (!s->pending)
+ return -1;
+
+ list_del(&s->list);
+ s->pending = false;
+
+ if (s->orig.sa_handler != uloop_signal_wake)
+ sigaction(s->signo, &s->orig, NULL);
+
+ return 0;
+}
+
int uloop_get_next_timeout(void)
{
struct uloop_timeout *timeout;