vfio: Enable vfio-pci and mark supported

[qemu.git] / main-loop.c

diff --git a/main-loop.c b/main-loop.c
index 4d02568ee9944a58269adb168218cc85fc0739d0..eb3b6e6253694b2c9f62ccbd7ef431fc78afe800 100644 (file)
--- a/main-loop.c
+++ b/main-loop.c
@@ -164,7 +164,7 @@ static int qemu_signal_init(void)
 
 #else /* _WIN32 */
 
-HANDLE qemu_event_handle = NULL;
+static HANDLE qemu_event_handle = NULL;
 
 static void dummy_event_handler(void *opaque)
 {
@@ -221,13 +221,12 @@ int main_loop_init(void)
 static fd_set rfds, wfds, xfds;
 static int nfds;
 static GPollFD poll_fds[1024 * 2]; /* this is probably overkill */
-
-#ifndef _WIN32
 static int n_poll_fds;
 static int max_priority;
 
+#ifndef _WIN32
 static void glib_select_fill(int *max_fd, fd_set *rfds, fd_set *wfds,
-                             fd_set *xfds, int *cur_timeout)
+                             fd_set *xfds, uint32_t *cur_timeout)
 {
     GMainContext *context = g_main_context_default();
     int i;
@@ -289,20 +288,24 @@ static void glib_select_poll(fd_set *rfds, fd_set *wfds, fd_set *xfds,
     }
 }
 
-static int os_host_main_loop_wait(int timeout)
+static int os_host_main_loop_wait(uint32_t timeout)
 {
-    struct timeval tv;
+    struct timeval tv, *tvarg = NULL;
     int ret;
 
     glib_select_fill(&nfds, &rfds, &wfds, &xfds, &timeout);
 
+    if (timeout < UINT32_MAX) {
+        tvarg = &tv;
+        tv.tv_sec = timeout / 1000;
+        tv.tv_usec = (timeout % 1000) * 1000;
+    }
+
     if (timeout > 0) {
         qemu_mutex_unlock_iothread();
     }
 
-    tv.tv_sec = timeout / 1000;
-    tv.tv_usec = (timeout % 1000) * 1000;
-    ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
+    ret = select(nfds + 1, &rfds, &wfds, &xfds, tvarg);
 
     if (timeout > 0) {
         qemu_mutex_lock_iothread();
@@ -401,11 +404,13 @@ void qemu_fd_register(int fd)
                    FD_CONNECT | FD_WRITE | FD_OOB);
 }
 
-static int os_host_main_loop_wait(int timeout)
+static int os_host_main_loop_wait(uint32_t timeout)
 {
+    GMainContext *context = g_main_context_default();
     int ret, i;
     PollingEntry *pe;
     WaitObjects *w = &wait_objects;
+    gint poll_timeout;
     static struct timeval tv0;
 
     /* XXX: need to suppress polling by better using win32 events */
@@ -424,17 +429,26 @@ static int os_host_main_loop_wait(int timeout)
         }
     }
 
+    g_main_context_prepare(context, &max_priority);
+    n_poll_fds = g_main_context_query(context, max_priority, &poll_timeout,
+                                      poll_fds, ARRAY_SIZE(poll_fds));
+    g_assert(n_poll_fds <= ARRAY_SIZE(poll_fds));
+
     for (i = 0; i < w->num; i++) {
-        poll_fds[i].fd = (DWORD) w->events[i];
-        poll_fds[i].events = G_IO_IN;
+        poll_fds[n_poll_fds + i].fd = (DWORD_PTR)w->events[i];
+        poll_fds[n_poll_fds + i].events = G_IO_IN;
+    }
+
+    if (poll_timeout < 0 || timeout < poll_timeout) {
+        poll_timeout = timeout;
     }
 
     qemu_mutex_unlock_iothread();
-    ret = g_poll(poll_fds, w->num, timeout);
+    ret = g_poll(poll_fds, n_poll_fds + w->num, poll_timeout);
     qemu_mutex_lock_iothread();
     if (ret > 0) {
         for (i = 0; i < w->num; i++) {
-            w->revents[i] = poll_fds[i].revents;
+            w->revents[i] = poll_fds[n_poll_fds + i].revents;
         }
         for (i = 0; i < w->num; i++) {
             if (w->revents[i] && w->func[i]) {
@@ -443,6 +457,10 @@ static int os_host_main_loop_wait(int timeout)
         }
     }
 
+    if (g_main_context_check(context, max_priority, poll_fds, n_poll_fds)) {
+        g_main_context_dispatch(context);
+    }
+
     /* If an edge-triggered socket event occurred, select will return a
      * positive result on the next iteration.  We do not need to do anything
      * here.
@@ -454,12 +472,12 @@ static int os_host_main_loop_wait(int timeout)
 
 int main_loop_wait(int nonblocking)
 {
-    int ret, timeout;
+    int ret;
+    uint32_t timeout = UINT32_MAX;
 
     if (nonblocking) {
         timeout = 0;
     } else {
-        timeout = qemu_calculate_timeout();
         qemu_bh_update_timeout(&timeout);
     }
 
@@ -471,6 +489,7 @@ int main_loop_wait(int nonblocking)
     FD_ZERO(&xfds);
 
 #ifdef CONFIG_SLIRP
+    slirp_update_timeout(&timeout);
     slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
 #endif
     qemu_iohandler_fill(&nfds, &rfds, &wfds, &xfds);