ui/ncurses: Always provide a key definition for backtab

[petitboot] / discover / udev.c

diff --git a/discover/udev.c b/discover/udev.c
index b1a25b3e639925ee753b53ad4830c9db75e2a7ba..9e1a5ce8a5155294efe33b5ee817853c3c57fc43 100644 (file)
--- a/discover/udev.c
+++ b/discover/udev.c
@@ -26,6 +26,11 @@
 #include "device-handler.h"
 #include "cdrom.h"
 
+/* We set a default monitor buffer size, as we may not process monitor
+ * events while performing device discvoery. systemd uses a 128M buffer, so
+ * we'll do the same here */
+static const int monitor_bufsize = 128 * 1024 * 1024;
+
 struct pb_udev {
        struct udev *udev;
        struct udev_monitor *monitor;
@@ -116,7 +121,7 @@ static int udev_handle_block_add(struct pb_udev *udev, struct udev_device *dev,
                if (ddev) {
                        pb_log("SKIP: %s UUID [%s] already present (as %s)\n",
                                        name, uuid, ddev->device->id);
-                       return -1;
+                       return 0;
                }
        }
 
@@ -258,23 +263,18 @@ static int udev_handle_dev_change(struct pb_udev *udev, struct udev_device *dev)
 static int udev_handle_dev_action(struct udev_device *dev, const char *action)
 {
        struct pb_udev *udev = udev_get_userdata(udev_device_get_udev(dev));
+       struct udev_list_entry *list;
+       const char *name;
 
-#ifdef DEBUG
-       {
-               struct udev_list_entry *list;
-               const char *name;
-
-               list = udev_device_get_properties_list_entry(dev);
-               name = udev_device_get_sysname(dev);
+       list = udev_device_get_properties_list_entry(dev);
+       name = udev_device_get_sysname(dev);
 
-               pb_debug("%s: action %s, device %s\n", __func__, action, name);
-               pb_debug("%s properties:\n", __func__);
+       pb_debug("udev: action %s, device %s\n", action, name);
+       pb_debug("udev: properties:\n");
 
-               for (; list; list = udev_list_entry_get_next(list))
-                       pb_log("\t%-20s: %s\n", udev_list_entry_get_name(list),
-                                       udev_list_entry_get_value(list));
-       } while (0);
-#endif
+       for (; list; list = udev_list_entry_get_next(list))
+               pb_debug("\t%-20s: %s\n", udev_list_entry_get_name(list),
+                               udev_list_entry_get_value(list));
 
        if (!strcmp(action, "add"))
                return udev_handle_dev_add(udev, dev);
@@ -355,6 +355,12 @@ static int udev_setup_monitor(struct udev *udev, struct udev_monitor **monitor)
                goto out_err;
        }
 
+       result = udev_monitor_set_receive_buffer_size(m, monitor_bufsize);
+       if (result) {
+               pb_log("udev_monitor_set_rx_bufsize(%d) failed\n",
+                       monitor_bufsize);
+       }
+
        result = udev_monitor_filter_add_match_subsystem_devtype(m, "block",
                NULL);
 
@@ -387,10 +393,8 @@ static int udev_process(void *arg)
        struct udev_monitor *monitor = arg;
        struct udev_device *dev;
        const char *action;
-       int result;
 
        dev = udev_monitor_receive_device(monitor);
-
        if (!dev) {
                pb_log("udev_monitor_receive_device failed\n");
                return -1;
@@ -400,17 +404,12 @@ static int udev_process(void *arg)
 
        if (!action) {
                pb_log("udev_device_get_action failed\n");
-               goto fail;
+       } else {
+               udev_handle_dev_action(dev, action);
        }
 
-       result = udev_handle_dev_action(dev, action);
-
        udev_device_unref(dev);
-       return result;
-
-fail:
-       udev_device_unref(dev);
-       return -1;
+       return 0;
 }
 
 static void udev_log_fn(struct udev __attribute__((unused)) *udev,
@@ -421,12 +420,13 @@ static void udev_log_fn(struct udev __attribute__((unused)) *udev,
       vfprintf(pb_log_get_stream(), format, args);
 }
 
-struct pb_udev *udev_init(struct waitset *waitset,
-       struct device_handler *handler)
+struct pb_udev *udev_init(struct device_handler *handler,
+               struct waitset *waitset)
 {
+       struct pb_udev *udev;
        int result;
-       struct pb_udev *udev = talloc(NULL, struct pb_udev);
 
+       udev = talloc(handler, struct pb_udev);
        talloc_set_destructor(udev, udev_destructor);
        udev->handler = handler;
 
@@ -465,7 +465,8 @@ fail_new:
        return NULL;
 }
 
-void udev_destroy(struct pb_udev *udev)
+void udev_reinit(struct pb_udev *udev)
 {
-       talloc_free(udev);
+       pb_log("udev: reinit requested, starting enumeration\n");
+       udev_enumerate(udev->udev);
 }