X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.h;h=60732fe052d774b796e35926f29fbc757ca04451;hp=28f62cf528ffe66c26b18a6cd220c91504afad10;hb=a15f42c46a7b9ceb5850ea4334c95f099ce74a6f;hpb=8b72687876747186d5f1a5a45464bf64b1a166f5

diff --git a/udevd.h b/udevd.h
index 28f62cf52..60732fe05 100644
--- a/udevd.h
+++ b/udevd.h
@@ -26,23 +26,44 @@
 
 #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_UEVENT,
+	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 {
+	struct list_head node;
 	pid_t pid;
 	long queue_time;
 	char *action;
@@ -50,6 +71,7 @@ struct hotplug_msg {
 	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[];
 };