#define UDEV_MAGIC "udevd_" UDEV_VERSION
#define UDEVD_SOCK_PATH "udevd"
-#define SEND_WAIT_MAX_SECONDS 3
-#define SEND_WAIT_LOOP_PER_SECOND 10
-#define INIT_TIME_SEC 5
-#define EVENT_INIT_TIMEOUT_SEC 2
-#define EVENT_TIMEOUT_SEC 10
+#define UDEVSEND_WAIT_MAX_SECONDS 3
+#define UDEVSEND_WAIT_LOOP_PER_SECOND 10
+
+#define UDEVD_PRIORITY -4
+#define UDEV_PRIORITY -2
+
+/* duration of initialization phase with shorter timeout */
+#define UDEVD_INIT_TIME 5
+#define UDEVD_INIT_EVENT_TIMEOUT 2
+
+/* timeout to wait for missing events */
+#define UDEVD_EVENT_TIMEOUT 5
+
+/* maximum limit of runnig childs */
+#define UDEVD_MAX_CHILDS 64
+/* start to throttle forking if maximum number of running childs in our session is reached */
+#define UDEVD_MAX_CHILDS_RUNNING 8
/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
-#define HOTPLUG_BUFFER_SIZE 1024
-#define HOTPLUG_NUM_ENVP 32
+#define UEVENT_BUFFER_SIZE 1024
+#define UEVENT_NUM_ENVP 32
+
+enum udevd_msg_type {
+ UDEVD_UNKNOWN,
+ UDEVD_UDEVSEND,
+ UDEVD_INITSEND,
+ UDEVD_NL,
+ UDEVD_STOP_EXEC_QUEUE,
+ UDEVD_START_EXEC_QUEUE,
+};
+
-struct udevsend_msg {
- char magic[20];
- char envbuf[HOTPLUG_BUFFER_SIZE+256];
+struct udevd_msg {
+ char magic[32];
+ enum udevd_msg_type type;
+ char envbuf[UEVENT_BUFFER_SIZE+512];
};
-struct hotplug_msg {
- struct list_head list;
+struct uevent_msg {
+ enum udevd_msg_type type;
+ struct list_head node;
pid_t pid;
long queue_time;
char *action;
char *subsystem;
unsigned long long seqnum;
char *physdevpath;
- char *envp[HOTPLUG_NUM_ENVP+1];
+ unsigned int timeout;
+ char *envp[UEVENT_NUM_ENVP+1];
char envbuf[];
};