EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Demo / scripts / lpwatch.py

#! /usr/bin/env python\r
\r
# Watch line printer queue(s).\r
# Intended for BSD 4.3 lpq.\r
\r
import os\r
import sys\r
import time\r
\r
DEF_PRINTER = 'psc'\r
DEF_DELAY = 10\r
\r
def main():\r
    delay = DEF_DELAY # XXX Use getopt() later\r
    try:\r
        thisuser = os.environ['LOGNAME']\r
    except:\r
        thisuser = os.environ['USER']\r
    printers = sys.argv[1:]\r
    if printers:\r
        # Strip '-P' from printer names just in case\r
        # the user specified it...\r
        for i, name in enumerate(printers):\r
            if name[:2] == '-P':\r
                printers[i] = name[2:]\r
    else:\r
        if os.environ.has_key('PRINTER'):\r
            printers = [os.environ['PRINTER']]\r
        else:\r
            printers = [DEF_PRINTER]\r
\r
    clearhome = os.popen('clear', 'r').read()\r
\r
    while True:\r
        text = clearhome\r
        for name in printers:\r
            text += makestatus(name, thisuser) + '\n'\r
        print text\r
        time.sleep(delay)\r
\r
def makestatus(name, thisuser):\r
    pipe = os.popen('lpq -P' + name + ' 2>&1', 'r')\r
    lines = []\r
    users = {}\r
    aheadbytes = 0\r
    aheadjobs = 0\r
    userseen = False\r
    totalbytes = 0\r
    totaljobs = 0\r
    for line in pipe:\r
        fields = line.split()\r
        n = len(fields)\r
        if len(fields) >= 6 and fields[n-1] == 'bytes':\r
            rank, user, job = fields[0:3]\r
            files = fields[3:-2]\r
            bytes = int(fields[n-2])\r
            if user == thisuser:\r
                userseen = True\r
            elif not userseen:\r
                aheadbytes += bytes\r
                aheadjobs += 1\r
            totalbytes += bytes\r
            totaljobs += 1\r
            ujobs, ubytes = users.get(user, (0, 0))\r
            ujobs += 1\r
            ubytes += bytes\r
            users[user] = ujobs, ubytes\r
        else:\r
            if fields and fields[0] != 'Rank':\r
                line = line.strip()\r
                if line == 'no entries':\r
                    line = name + ': idle'\r
                elif line[-22:] == ' is ready and printing':\r
                    line = name\r
                lines.append(line)\r
\r
    if totaljobs:\r
        line = '%d K' % ((totalbytes+1023) // 1024)\r
        if totaljobs != len(users):\r
            line += ' (%d jobs)' % totaljobs\r
        if len(users) == 1:\r
            line += ' for %s' % (users.keys()[0],)\r
        else:\r
            line += ' for %d users' % len(users)\r
            if userseen:\r
                if aheadjobs == 0:\r
                    line += ' (%s first)' % thisuser\r
                else:\r
                    line += ' (%d K before %s)' % (\r
                        (aheadbytes+1023) // 1024, thisuser)\r
        lines.append(line)\r
\r
    sts = pipe.close()\r
    if sts:\r
        lines.append('lpq exit status %r' % (sts,))\r
    return ': '.join(lines)\r
\r
if __name__ == "__main__":\r
    try:\r
        main()\r
    except KeyboardInterrupt:\r
        pass\r