small-packages/luci-app-msd_lite/root/etc/init.d/msd_lite

#!/bin/sh /etc/rc.common

. /lib/functions/network.sh  # 导入网络相关函数库

START=99                   # 启动优先级
USE_PROCD=1               # 使用 procd 管理进程

NAME="msd_lite"           # 服务名称
PROG="/usr/bin/$NAME"     # 可执行程序路径
CONF="/etc/$NAME/$NAME.conf.sample"  # 模板配置文件路径
CONFDIR="/var/run/$NAME"  # 运行时生成配置文件目录
CONFIG_SECTION="default"  # 使用固定配置节名称

# 添加网络触发器
add_interface_triggers() {
    local enabled network
    # 读取配置节中的 enabled
    config_get_bool enabled "$CONFIG_SECTION" "enabled" "0"
    # 读取配置节中的 network 字段
    config_get network "$CONFIG_SECTION" "network"
    # 如果 enabled = 1 且 network 非空，则为该 network 添加接口变更触发器
    [ "$enabled" -eq 0 -o -z "$network" ] || procd_add_reload_interface_trigger "$network"
}

# 启动服务
start_service() {
    local seconds="0"
    local enabled address network interface
    local bindlist addr bind_to_cpu drop_slow_clients
    local loglevel threads precache_size ring_buffer_size
    local multicast_recv_buffer_size multicast_recv_timeout rejoin_tim

    config_load "$NAME"
    
    # 检查服务是否启用
    config_get_bool enabled "$CONFIG_SECTION" "enabled" "0"
    [ "$enabled" -eq 1 ] || return 0
    
    # 获取地址列表
    config_get address "$CONFIG_SECTION" "address"
    # 地址不能为空
    [ -n "$address" ] || {
        logger -p daemon.err -t "$NAME" "No bind addresses configured."
        return 1
    }
    
    # 获取网络接口
    config_get network "$CONFIG_SECTION" "network"
    # 若配置了 network，则尝试最多10秒等待对应接口上线
    if [ -n "$network" ]; then
        while [ "$seconds" -le 10 ]; do
            network_flush_cache
            network_get_device interface "$network"
            [ -n "$interface" ] && break
            seconds=$((seconds + 2))
            sleep 2
        done
        [ -n "$interface" ] || logger -p daemon.warn -t "$NAME" "Interface for network '$network' not found after 10 seconds"
    fi
    
    # 生成绑定地址的 XML 列表
    for addr in $address; do
        bindlist="${bindlist:+$bindlist\\n\\t\\t\\t}<bind><address>$addr</address></bind>"
    done

    # 读取并转换布尔配置为 yes/no
    config_get_bool bind_to_cpu "$CONFIG_SECTION" "bind_to_cpu" 0
    [ "$bind_to_cpu" = "1" ] && bind_to_cpu="yes" || bind_to_cpu="no"

    config_get_bool drop_slow_clients "$CONFIG_SECTION" "drop_slow_clients" 0
    [ "$drop_slow_clients" = "1" ] && drop_slow_clients="yes" || drop_slow_clients="no"

    # 读取其他配置参数
    config_get loglevel "$CONFIG_SECTION" "loglevel" "0"
    config_get threads "$CONFIG_SECTION" "threads" "0"
    config_get precache_size "$CONFIG_SECTION" "precache_size" "4096"
    config_get ring_buffer_size "$CONFIG_SECTION" "ring_buffer_size" "1024"
    config_get multicast_recv_buffer_size "$CONFIG_SECTION" "multicast_recv_buffer_size" "512"
    config_get multicast_recv_timeout "$CONFIG_SECTION" "multicast_recv_timeout" "2"
    config_get rejoin_time "$CONFIG_SECTION" "rejoin_time" "0"

    # 创建配置目录
    mkdir -p "$CONFDIR"
    # 通过模板替换生成具体的配置文件
    sed -e "s,@logLevel@,$loglevel,g" \
        -e "s,@threadsCountMax@,$threads,g" \
        -e "s,@fBindToCPU@,$bind_to_cpu,g" \
        -e "s,@bindList@,$bindlist,g" \
        -e "s,@ifName@,$interface,g" \
        -e "s,@fDropSlowClients@,$drop_slow_clients,g" \
        -e "s,@precache@,$precache_size,g" \
        -e "s,@ringBufSize@,$ring_buffer_size,g" \
        -e "s,@rcvBuf@,$multicast_recv_buffer_size,g" \
        -e "s,@rcvTimeout@,$multicast_recv_timeout,g" \
        -e "s,@rejoinTime@,$rejoin_time,g" \
        "$CONF" > "$CONFDIR/$NAME.conf"

    # 使用 procd 启动服务
    procd_open_instance "$NAME-c"
    procd_set_param command "$PROG"
	procd_append_param command -c "$CONFDIR/$NAME.conf"

    procd_set_param limits core="unlimited"
    procd_set_param limits nofile="1000000 1000000"

    procd_set_param respawn
    procd_set_param stderr 1
    procd_close_instance
}

# 停止服务
stop_service() {
    # 停止服务并删除配置文件
    procd_kill "$NAME-c" >/dev/null 2>&1
    rm -f "$CONFDIR/$NAME.conf"
}

restart() {
    stop_service
    start_service
}

# 添加服务触发器
service_triggers() {
    # 添加配置文件变更触发器
    procd_add_reload_trigger "$NAME" "/etc/init.d/$NAME" restart
    
    # 添加网络接口触发器
    config_load "$NAME"
    add_interface_triggers
}