X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.h;h=34bfe931bada23cacf393a89a29d229ba08666ac;hp=e24bc28a78ccf24b91aef8fa36e7c2b8e7c8880e;hb=6bf0ffe8fd312c1e6549cb1721d7a7efeee77185;hpb=53921bfa44129a19661a4aaa4c1647282921fc18

diff --git a/udevd.h b/udevd.h
index e24bc28a7..34bfe931b 100644
--- a/udevd.h
+++ b/udevd.h
@@ -24,26 +24,59 @@
 
 #include "list.h"
 
-/*
- * FIXME: udev_root is post compile configurable and may also be
- * mounted over at any time and /var/run/ and /tmp/ is unusable,
- * cause it's cleaned at system startup, long _after_ udevd is
- * already running. Should we use udev_init_config()?
- */
+#define UDEV_MAGIC			"udevd_" UDEV_VERSION
+#define UDEVD_SOCK_PATH			"udevd"
+#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
 
-#define UDEV_MAGIC			"udev_" UDEV_VERSION
-#define EVENT_TIMEOUT_SEC		5
-#define UDEVSEND_CONNECT_RETRY		20 /* x 100 millisec */
-#define UDEVD_SOCKET			UDEV_ROOT ".udevd.socket"
-#define UDEVD_LOCK			UDEV_ROOT ".udevd.pid"
+/* environment buffer, should match the kernel's size in lib/kobject_uevent.h */
+#define UEVENT_BUFFER_SIZE		1024
+#define UEVENT_NUM_ENVP			32
+
+enum udevd_msg_type {
+	UDEVD_UNKNOWN,
+	UDEVD_UEVENT_UDEVSEND,
+	UDEVD_UEVENT_INITSEND,
+	UDEVD_UEVENT_NETLINK,
+	UDEVD_STOP_EXEC_QUEUE,
+	UDEVD_START_EXEC_QUEUE,
+	UDEVD_SET_LOG_LEVEL,
+	UDEVD_SET_MAX_CHILDS,
+};
+
+
+struct udevd_msg {
+	char magic[32];
+	enum udevd_msg_type type;
+	char envbuf[UEVENT_BUFFER_SIZE+512];
+};
 
-struct hotplug_msg {
-	char magic[20];
-	struct list_head list;
+struct uevent_msg {
+	enum udevd_msg_type type;
+	struct list_head node;
 	pid_t pid;
-	int seqnum;
-	time_t queue_time;
-	char action[8];
-	char devpath[128];
-	char subsystem[16];
+	long queue_time;
+	char *action;
+	char *devpath;
+	char *subsystem;
+	unsigned long long seqnum;
+	char *physdevpath;
+	unsigned int timeout;
+	char *envp[UEVENT_NUM_ENVP+1];
+	char envbuf[];
 };