X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.h;h=da5f6b94f902558ecc3b01d2660b9e640a2cc0d0;hp=31f07de8265a693ec3b2c8b0d5af677e67b527f6;hb=1bc33626787f089523192c270790f9f878a4edd7;hpb=6f59ed5547426ddaf6bedf574d19a19f6bd20e1f diff --git a/udevd.h b/udevd.h index 31f07de82..da5f6b94f 100644 --- a/udevd.h +++ b/udevd.h @@ -1,11 +1,8 @@ /* * udevd.h * - * Userspace devfs - * * Copyright (C) 2004 Ling, Xiaofeng - * Copyright (C) 2004 Kay Sievers - * + * Copyright (C) 2004-2005 Kay Sievers * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -25,28 +22,59 @@ #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 UDEVD_SOCK_PATH "/org/kernel/udev/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 /* 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_UDEVSEND, + UDEVD_UEVENT_INITSEND, + UDEVD_UEVENT_NETLINK, + UDEVD_STOP_EXEC_QUEUE, + UDEVD_START_EXEC_QUEUE, + UDEVD_SET_LOG_LEVEL, + UDEVD_SET_MAX_CHILDS, +}; + -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 *devpath; char *subsystem; + dev_t devt; unsigned long long seqnum; - char *envp[HOTPLUG_NUM_ENVP+1]; + char *physdevpath; + unsigned int timeout; + char *envp[UEVENT_NUM_ENVP+1]; char envbuf[]; };