static struct list_head timeouts = LIST_HEAD_INIT(timeouts);
static struct list_head processes = LIST_HEAD_INIT(processes);
+static int signal_fd = -1;
static int poll_fd = -1;
bool uloop_cancelled = false;
static bool do_sigchld = false;
static struct uloop_fd_event cur_fds[ULOOP_MAX_EVENTS];
static int cur_fd, cur_nfds;
+static void uloop_handle_signal(int signo);
+
#ifdef USE_KQUEUE
#include "uloop-kqueue.c"
#endif
#ifdef USE_EPOLL
-
-/**
- * FIXME: uClibc < 0.9.30.3 does not define EPOLLRDHUP for Linux >= 2.6.17
- */
-#ifndef EPOLLRDHUP
-#define EPOLLRDHUP 0x2000
-#endif
-
-int uloop_init(void)
-{
- if (poll_fd >= 0)
- return 0;
-
- poll_fd = epoll_create(32);
- if (poll_fd < 0)
- return -1;
-
- fcntl(poll_fd, F_SETFD, fcntl(poll_fd, F_GETFD) | FD_CLOEXEC);
- return 0;
-}
-
-static int register_poll(struct uloop_fd *fd, unsigned int flags)
-{
- struct epoll_event ev;
- int op = fd->registered ? EPOLL_CTL_MOD : EPOLL_CTL_ADD;
-
- memset(&ev, 0, sizeof(struct epoll_event));
-
- if (flags & ULOOP_READ)
- ev.events |= EPOLLIN | EPOLLRDHUP;
-
- if (flags & ULOOP_WRITE)
- ev.events |= EPOLLOUT;
-
- if (flags & ULOOP_EDGE_TRIGGER)
- ev.events |= EPOLLET;
-
- ev.data.fd = fd->fd;
- ev.data.ptr = fd;
- fd->flags = flags;
-
- return epoll_ctl(poll_fd, op, fd->fd, &ev);
-}
-
-static struct epoll_event events[ULOOP_MAX_EVENTS];
-
-static int __uloop_fd_delete(struct uloop_fd *sock)
-{
- sock->flags = 0;
- return epoll_ctl(poll_fd, EPOLL_CTL_DEL, sock->fd, 0);
-}
-
-static int uloop_fetch_events(int timeout)
-{
- int n, nfds;
-
- nfds = epoll_wait(poll_fd, events, ARRAY_SIZE(events), timeout);
- for (n = 0; n < nfds; ++n) {
- struct uloop_fd_event *cur = &cur_fds[n];
- struct uloop_fd *u = events[n].data.ptr;
- unsigned int ev = 0;
-
- cur->fd = u;
- if (!u)
- continue;
-
- if (events[n].events & (EPOLLERR|EPOLLHUP)) {
- u->error = true;
- if (!(u->flags & ULOOP_ERROR_CB))
- uloop_fd_delete(u);
- }
-
- if(!(events[n].events & (EPOLLRDHUP|EPOLLIN|EPOLLOUT|EPOLLERR|EPOLLHUP))) {
- cur->fd = NULL;
- continue;
- }
-
- if(events[n].events & EPOLLRDHUP)
- u->eof = true;
-
- if(events[n].events & EPOLLIN)
- ev |= ULOOP_READ;
-
- if(events[n].events & EPOLLOUT)
- ev |= ULOOP_WRITE;
-
- cur->events = ev;
- }
-
- return nfds;
-}
-
+#include "uloop-epoll.c"
#endif
static bool uloop_fd_stack_event(struct uloop_fd *fd, int events)
while (1) {
pid = waitpid(-1, &ret, WNOHANG);
+ if (pid < 0 && errno == EINTR)
+ continue;
+
if (pid <= 0)
return;
}
-static void uloop_handle_sigint(int signo)
+static void uloop_handle_signal(int signo)
{
- uloop_cancelled = true;
-}
-
-static void uloop_sigchld(int signo)
-{
- do_sigchld = true;
+ switch (signo) {
+ case SIGINT:
+ case SIGQUIT:
+ case SIGTERM:
+ uloop_cancelled = true;
+ break;
+ case SIGCHLD:
+ do_sigchld = true;
+ }
}
static void uloop_install_handler(int signum, void (*handler)(int), struct sigaction* old, bool add)
{
static struct sigaction old_sigint, old_sigchld, old_sigterm;
- uloop_install_handler(SIGINT, uloop_handle_sigint, &old_sigint, add);
- uloop_install_handler(SIGTERM, uloop_handle_sigint, &old_sigterm, add);
- uloop_install_handler(SIGCHLD, uloop_sigchld, &old_sigchld, add);
+ if (uloop_setup_signalfd(add))
+ return;
+
+ uloop_install_handler(SIGINT, uloop_handle_signal, &old_sigint, add);
+ uloop_install_handler(SIGTERM, uloop_handle_signal, &old_sigterm, add);
+ uloop_install_handler(SIGQUIT, uloop_handle_signal, &old_sigterm, add);
+ uloop_install_handler(SIGCHLD, uloop_handle_signal, &old_sigchld, add);
uloop_ignore_signal(SIGPIPE, add);
}
void uloop_done(void)
{
+ if (signal_fd >= 0) {
+ close(signal_fd);
+ signal_fd = -1;
+ }
+
if (poll_fd < 0)
return;