udevinitsend: handle replay messages correctly

[elogind.git] / udevd.h

diff --git a/udevd.h b/udevd.h
index b393a28bf94ad8a55eb646a3d7b7786167450219..b8fb6913c94fda27be5e4770aedb46354f2aaf4d 100644 (file)
--- a/udevd.h
+++ b/udevd.h
@@ -25,28 +25,56 @@
 #include "list.h"
 
 #define UDEV_MAGIC                     "udevd_" UDEV_VERSION
-#define EVENT_TIMEOUT_SEC              10
 #define UDEVD_SOCK_PATH                        "udevd"
-#define SEND_WAIT_MAX_SECONDS          3
-#define SEND_WAIT_LOOP_PER_SECOND      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];
+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 *devpath;
        char *subsystem;
        unsigned long long seqnum;
-       char *envp[HOTPLUG_NUM_ENVP];
+       char *physdevpath;
+       unsigned int timeout;
+       char *envp[UEVENT_NUM_ENVP+1];
        char envbuf[];
 };