svc指令可用於電源控制, 無線業務控制(modem/wifi/nfc/bt, etc), 等等.

可以不適用按鍵,觸控裝置, 而通過使用svc命令實現這些模組的功能操作,比如wifi的開關:

svc wifi enable //開啟wifi

svc wifi disable //關閉wifi

因此, 對於涉及到這些模組的自動化測試和壓力測試, 都可以使用svc命令, 來解放雙手.

svc位於/system/bin/svc

# which svc
/system/bin/svc

# svc help
Available commands:
    help          Show information about the subcommands
    power         Control the power manager
    data          Control mobile data connectivity
    wifi          Control the Wi-Fi manager
    usb           Control Usb state
    nfc           Control NFC functions
    feedback      Control feedback state
    ebensecure    Control ebensecure state
    opt           Control the operation monitor manager
    bluetooth     Control Bluetooth service
 

# svc wifi
Control the Wi-Fi manager

usage: svc wifi [enable|disable]
         Turn Wi-Fi on or off.

svc可用於power/data/wifi/usb/nfc/bt等的自動化測試和壓力測試.

下面通過wifi開關/自動重連的壓力測試舉例說明svc的好用之處.

wifi開關/自動重連的壓力測試指令碼:

#!/bin/sh

count_success=0
count_err=0
while true
do
svc wifi disable
sleep 5
svc wifi enable
sleep 20
wlan_status=`wpa_cli -i wlan0 status`
tmp=${wlan_status#*wpa_state=}
wpa_state=${tmp:0:9}
echo "STA status is: $wpa_state"
if [ $wpa_state = "COMPLETED" ];then
count_success=$(($count_success+1))
else
count_err=$(($count_err+1))
fi
echo "====== SUCCESS: $count_success, FAIL: $count_err ========"
done