X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=uloop.c;h=af84737c28ce6112337ee2362e23444885d7c57f;hb=93be9309b86d07eaa3b83ad07d380ca3092b29a1;hp=f2eb50a64a32a835e83210a35110311ad46eb89f;hpb=4b0aa9ccc22eff62e177b9777152e7937273b418;p=project%2Flibubox.git

diff --git a/uloop.c b/uloop.c
index f2eb50a..af84737 100644
--- a/uloop.c
+++ b/uloop.c
@@ -56,6 +56,7 @@ static struct uloop_fd_stack *fd_stack = NULL;
 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;
@@ -63,103 +64,14 @@ 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)
@@ -399,6 +311,9 @@ static void uloop_handle_processes(void)
 
 	while (1) {
 		pid = waitpid(-1, &ret, WNOHANG);
+		if (pid < 0 && errno == EINTR)
+			continue;
+
 		if (pid <= 0)
 			return;
 
@@ -416,14 +331,17 @@ static void uloop_handle_processes(void)
 
 }
 
-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)
@@ -474,11 +392,14 @@ static void uloop_ignore_signal(int signum, bool ignore)
 
 static void uloop_setup_signals(bool add)
 {
-	static struct sigaction old_sigint, old_sigchld, old_sigterm;
+	static struct sigaction old_sigint, old_sigchld, old_sigterm, old_sigquit;
 
-	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);
+	uloop_setup_signalfd(add);
+
+	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_sigquit, add);
+	uloop_install_handler(SIGCHLD, uloop_handle_signal, &old_sigchld, add);
 
 	uloop_ignore_signal(SIGPIPE, add);
 }
@@ -565,6 +486,11 @@ void uloop_run(void)
 
 void uloop_done(void)
 {
+	if (signal_fd >= 0) {
+		close(signal_fd);
+		signal_fd = -1;
+	}
+
 	if (poll_fd < 0)
 		return;