libudev: enumerate - add_device() -> add_syspath()

5 files changed, 32 insertions, 20 deletions

diff --git a/udev/lib/exported_symbols b/udev/lib/exported_symbols
index 81abb58d64..ffd8d66acd 100644
--- a/udev/lib/exported_symbols
+++ b/udev/lib/exported_symbols
@@ -42,7 +42,7 @@ udev_enumerate_add_match_attr
 udev_enumerate_add_nomatch_attr
 udev_enumerate_scan_devices
 udev_enumerate_scan_subsystems
-udev_enumerate_add_device
+udev_enumerate_add_syspath
 udev_monitor_new_from_socket
 udev_monitor_new_from_netlink
 udev_monitor_enable_receiving
diff --git a/udev/lib/libudev-enumerate.c b/udev/lib/libudev-enumerate.c
index 7d2d592c92..9fb154418d 100644
--- a/udev/lib/libudev-enumerate.c
+++ b/udev/lib/libudev-enumerate.c
@@ -30,6 +30,8 @@
 #include "libudev.h"
 #include "libudev-private.h"
 
+static int devices_sort(struct udev_enumerate *udev_enumerate);
+
 struct udev_enumerate {
 	struct udev *udev;
 	int refcount;
@@ -38,6 +40,7 @@ struct udev_enumerate {
 	struct list_node subsystem_match_list;
 	struct list_node subsystem_nomatch_list;
 	struct list_node devices_list;
+	int devices_sorted;
 };
 
 /**
@@ -98,6 +101,8 @@ struct udev_list_entry *udev_enumerate_get_list_entry(struct udev_enumerate *ude
 {
 	if (udev_enumerate == NULL)
 		return NULL;
+	if (!udev_enumerate->devices_sorted)
+		devices_sort(udev_enumerate);
 	return list_get_entry(&udev_enumerate->devices_list);
 }
 
@@ -313,23 +318,35 @@ static int devices_delay(struct udev *udev, const char *syspath)
 	return 0;
 }
 
-int udev_enumerate_add_device(struct udev_enumerate *udev_enumerate, struct udev_device *udev_device)
+/* sort delayed devices to the end of the list */
+static int devices_sort(struct udev_enumerate *udev_enumerate)
 {
-	struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
 	struct udev_list_entry *list_entry;
 
+	udev_list_entry_foreach(list_entry, list_get_entry(&udev_enumerate->devices_list)) {
+		if (devices_delay(udev_enumerate->udev, udev_list_entry_get_name(list_entry)))
+			list_entry_move_to_end(list_entry);
+	}
+	udev_enumerate->devices_sorted = 1;
+	return 0;
+}
+
+int udev_enumerate_add_syspath(struct udev_enumerate *udev_enumerate, const char *syspath)
+{
+	struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
+	struct udev_device *udev_device;
+
 	if (udev_enumerate == NULL)
 		return -EINVAL;
-	if (udev_device == NULL)
+	if (syspath == NULL)
 		return 0;
-	list_entry_add(udev,
-		       &udev_enumerate->devices_list,
+	/* resolve to real syspath */
+	udev_device = udev_device_new_from_syspath(udev_enumerate->udev, syspath);
+	if (udev_device == NULL)
+		return -EINVAL;
+	list_entry_add(udev, &udev_enumerate->devices_list,
 		       udev_device_get_syspath(udev_device), NULL, 1, 1);
-	/* sort delayed devices to the end of the list */
-	udev_list_entry_foreach(list_entry, list_get_entry(&udev_enumerate->devices_list)) {
-		if (devices_delay(udev, udev_list_entry_get_name(list_entry)))
-			list_entry_move_to_end(list_entry);
-	}
+	udev_device_unref(udev_device);
 	return 0;
 }
 
diff --git a/udev/lib/libudev.c b/udev/lib/libudev.c
index 12220e7a78..c2c5025b9e 100644
--- a/udev/lib/libudev.c
+++ b/udev/lib/libudev.c
@@ -377,8 +377,7 @@ void udev_unref(struct udev *udev)
  * @udev: udev library context
  * @log_fn: function to be called for logging messages
  *
- * The built-in logging, which writes to stderr if the
- * LIBUDEV_DEBUG environment variable is set, can be
+ * The built-in logging, which writes to stderr, it can be
  * overridden by a custom function, to plug log messages
  * into the users logging functionality.
  *
diff --git a/udev/lib/libudev.h b/udev/lib/libudev.h
index cc6939c02f..fec05d4476 100644
--- a/udev/lib/libudev.h
+++ b/udev/lib/libudev.h
@@ -102,7 +102,7 @@ extern int udev_enumerate_add_match_subsystem(struct udev_enumerate *udev_enumer
 extern int udev_enumerate_add_nomatch_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem);
 extern int udev_enumerate_add_match_attr(struct udev_enumerate *udev_enumerate, const char *attr, const char *value);
 extern int udev_enumerate_add_nomatch_attr(struct udev_enumerate *udev_enumerate, const char *attr, const char *value);
-extern int udev_enumerate_add_device(struct udev_enumerate *udev_enumerate, struct udev_device *udev_device);
+extern int udev_enumerate_add_syspath(struct udev_enumerate *udev_enumerate, const char *syspath);
 extern int udev_enumerate_scan_devices(struct udev_enumerate *udev_enumerate);
 extern int udev_enumerate_scan_subsystems(struct udev_enumerate *udev_enumerate);
 extern struct udev_list_entry *udev_enumerate_get_list_entry(struct udev_enumerate *udev_enumerate);
diff --git a/udev/lib/test-libudev.c b/udev/lib/test-libudev.c
index 7291e8c89a..5d19d5dd75 100644
--- a/udev/lib/test-libudev.c
+++ b/udev/lib/test-libudev.c
@@ -73,23 +73,19 @@ static void print_device(struct udev_device *device)
 		printf("devnum:    %u:%u\n", major(devnum), minor(devnum));
 
 	count = 0;
-	list_entry = udev_device_get_devlinks_list_entry(device);
-	while (list_entry != NULL) {
+	udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) {
 		printf("link:      '%s'\n", udev_list_entry_get_name(list_entry));
 		count++;
-		list_entry = udev_list_entry_get_next(list_entry);
 	}
 	if (count > 0)
 		printf("found %i links\n", count);
 
 	count = 0;
-	list_entry = udev_device_get_properties_list_entry(device);
-	while (list_entry != NULL) {
+	udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) {
 		printf("property:  '%s=%s'\n",
 		       udev_list_entry_get_name(list_entry),
 		       udev_list_entry_get_value(list_entry));
 		count++;
-		list_entry = udev_list_entry_get_next(list_entry);
 	}
 	if (count > 0)
 		printf("found %i properties\n", count);