move /dev/.udev/ to /dev/.run/udev/ and convert old udev database at udevd startup

[elogind.git] / libudev / libudev-device.c

diff --git a/libudev/libudev-device.c b/libudev/libudev-device.c
index c78cf9b7a05753d8c9948c4b95a6dd5dcab9dfdc..dd0224ae4b43e025d3aca6da3409f6fbd9eef555 100644 (file)
--- a/libudev/libudev-device.c
+++ b/libudev/libudev-device.c
@@ -237,24 +237,30 @@ const char *udev_device_get_property_value(struct udev_device *udev_device, cons
        return udev_list_entry_get_value(list_entry);
 }
 
-int udev_device_read_db(struct udev_device *udev_device)
+int udev_device_read_db(struct udev_device *udev_device, const char *dbfile)
 {
-       const char *id;
        char filename[UTIL_PATH_SIZE];
        char line[UTIL_LINE_SIZE];
        FILE *f;
 
-       if (udev_device->db_loaded)
-               return 0;
-       udev_device->db_loaded = true;
+       /* providing a database file will always force-load it */
+       if (dbfile == NULL) {
+               const char *id;
 
-       id = udev_device_get_id_filename(udev_device);
-       if (id == NULL)
-               return -1;
-       util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/.udev/db/", id, NULL);
-       f = fopen(filename, "re");
+               if (udev_device->db_loaded)
+                       return 0;
+               udev_device->db_loaded = true;
+
+               id = udev_device_get_id_filename(udev_device);
+               if (id == NULL)
+                       return -1;
+               util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev_device->udev), "/.run/udev/db3/", id, NULL);
+               dbfile = filename;
+       }
+
+       f = fopen(dbfile, "re");
        if (f == NULL) {
-               info(udev_device->udev, "no db file to read %s: %m\n", filename);
+               info(udev_device->udev, "no db file to read %s: %m\n", dbfile);
                return -1;
        }
        udev_device->is_initialized = true;
@@ -908,7 +914,7 @@ const char *udev_device_get_devnode(struct udev_device *udev_device)
                return NULL;
        if (!udev_device->info_loaded) {
                udev_device_read_uevent_file(udev_device);
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        }
 
        /* we might get called before we handled an event and have a db, use the kernel-provided name */
@@ -1002,7 +1008,7 @@ struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *
        if (udev_device == NULL)
                return NULL;
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        return udev_list_get_entry(&udev_device->devlinks_list);
 }
 
@@ -1030,7 +1036,7 @@ struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device
                return NULL;
        if (!udev_device->info_loaded) {
                udev_device_read_uevent_file(udev_device);
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        }
        if (!udev_device->devlinks_uptodate) {
                char symlinks[UTIL_PATH_SIZE];
@@ -1154,7 +1160,7 @@ unsigned long long int udev_device_get_usec_since_initialized(struct udev_device
        if (udev_device == NULL)
                return 0;
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        if (udev_device->usec_initialized == 0)
                return 0;
        now = usec_monotonic();
@@ -1471,7 +1477,7 @@ const char *udev_device_get_id_filename(struct udev_device *udev_device)
 int udev_device_get_is_initialized(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        return udev_device->is_initialized;
 }
 
@@ -1519,7 +1525,7 @@ int udev_device_has_tag(struct udev_device *udev_device, const char *tag)
        struct udev_list_entry *list_entry;
 
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        list_entry = udev_device_get_tags_list_entry(udev_device);
        list_entry =  udev_list_entry_get_by_name(list_entry, tag);
        if (list_entry != NULL)
@@ -1689,7 +1695,7 @@ int udev_device_set_timeout(struct udev_device *udev_device, int timeout)
 int udev_device_get_event_timeout(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        return udev_device->event_timeout;
 }
 
@@ -1729,7 +1735,7 @@ int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum)
 int udev_device_get_devlink_priority(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        return udev_device->devlink_priority;
 }
 
@@ -1742,7 +1748,7 @@ int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio)
 int udev_device_get_watch_handle(struct udev_device *udev_device)
 {
        if (!udev_device->info_loaded)
-               udev_device_read_db(udev_device);
+               udev_device_read_db(udev_device, NULL);
        return udev_device->watch_handle;
 }