Mercurial > ~darius > hgwebdir.cgi > ZigBee
annotate zbmux.py @ 15:a472d6eab97e
Play back the last 5 lines to newly connected clients rather than 1.
| author | darius@Inchoate |
|---|---|
| date | Sat, 17 Jan 2009 21:43:59 +1030 |
| parents | ac60a9244bdf |
| children | ce3712110055 |
| rev | line source |
|---|---|
| 12 | 1 # |
| 2 # Mux the ZB module to TCP ports | |
| 3 # | |
| 4 # Copyright (c) 2009 | |
| 5 # Daniel O'Connor <darius@dons.net.au>. All rights reserved. | |
| 6 # | |
| 7 # Redistribution and use in source and binary forms, with or without | |
| 8 # modification, are permitted provided that the following conditions | |
| 9 # are met: | |
| 10 # 1. Redistributions of source code must retain the above copyright | |
| 11 # notice, this list of conditions and the following disclaimer. | |
| 12 # 2. Redistributions in binary form must reproduce the above copyright | |
| 13 # notice, this list of conditions and the following disclaimer in the | |
| 14 # documentation and/or other materials provided with the distribution. | |
| 15 # | |
| 16 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 26 # SUCH DAMAGE. | |
| 27 # | |
| 28 | |
| 29 from twisted.internet.serialport import SerialPort | |
| 30 from twisted.internet.protocol import Protocol | |
| 14 | 31 from twisted.conch.telnet import TelnetTransport, TelnetBootstrapProtocol |
| 32 from twisted.conch.insults import insults | |
| 12 | 33 from twisted.protocols import basic |
| 34 from twisted.internet import protocol, reactor | |
| 35 from twisted.python import log | |
| 14 | 36 import sys, zb, logging, logging.handlers, string |
| 12 | 37 |
| 38 portname = '/dev/cuaU0' | |
| 39 baudrate = 38400 | |
| 40 lognamebase = '/tmp/zbmux-%d.log' | |
| 41 baseport = 1080 | |
| 42 zbids = [1, 2] | |
| 43 | |
| 14 | 44 class ZBClient(insults.TerminalProtocol): |
| 12 | 45 """Client for the TCP connection""" |
| 14 | 46 #: Time to wait before sending pending data (seconds) |
| 47 QUEUE_TIME = 0.1 | |
| 48 | |
| 12 | 49 def connectionMade(self): |
| 50 log.msg("Got new client") | |
| 14 | 51 log.msg("Me - %s, terminal - %s" % (str(type(self)), str(type(self.terminal)))) |
| 52 self.terminal.eraseDisplay() | |
| 53 self.terminal.resetPrivateModes([]) | |
| 54 | |
| 55 # Send the last whole line we've seen out | |
|
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a472d6eab97e
Play back the last 5 lines to newly connected clients rather than 1.
darius@Inchoate
parents:
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changeset
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56 for l in self.factory.lastlines: |
|
a472d6eab97e
Play back the last 5 lines to newly connected clients rather than 1.
darius@Inchoate
parents:
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57 self.message(l + '\n') |
| 14 | 58 |
| 59 self.pending = "" | |
| 60 self.pendtimer = None | |
| 61 self.factory.clients.append(self) | |
| 12 | 62 |
| 63 def connectionLost(self, reason): | |
| 64 log.msg("Lost a client") | |
| 65 self.factory.clients.remove(self) | |
| 14 | 66 |
| 67 def keystrokeReceived(self, keyID, modifier): | |
| 68 """Got some data, add it to the pending output queue""" | |
| 69 if modifier != None: | |
| 70 print "Received unhandled modifier: %s" % (str(modifier)) | |
| 71 return | |
| 72 #if keyID not in string.printable: | |
| 73 # print "Received unhandled keyID: %r" % (keyID,) | |
| 74 # return | |
| 75 #log.msg("Got key ->%s<-" % (keyID)) | |
| 76 self.pending = self.pending + keyID | |
| 77 if self.pendtimer == None: | |
| 78 self.pendtimer = reactor.callLater(self.QUEUE_TIME, self.sendData) | |
| 79 | |
| 80 def sendData(self): | |
| 81 """Send pending data to module""" | |
| 82 #log.msg("sending " + self.pending) | |
| 83 self.factory.zbproto.sendData(self.factory.zbid, self.pending) | |
| 84 self.pending = "" | |
| 85 self.pendtimer = None | |
| 86 | |
| 12 | 87 def message(self, message): |
| 88 """Called to write a mesage to our client""" | |
| 14 | 89 self.terminal.write(message) |
| 12 | 90 |
| 91 class ZBFactory(protocol.ServerFactory): | |
| 92 """Factory for a ZB module | |
| 93 | |
| 94 Represents a remote ZB module and has zero or more clients and a log file. | |
| 95 """ | |
| 96 protocol = ZBClient | |
| 97 | |
| 14 | 98 def __init__(self, zbid, lognamebase): |
| 12 | 99 self.zbid = zbid |
| 100 self.clients = [] | |
| 101 self.tmpline = "" | |
|
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Play back the last 5 lines to newly connected clients rather than 1.
darius@Inchoate
parents:
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diff
changeset
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102 self.lastlines = [] |
| 12 | 103 |
| 104 # Open logger | |
| 105 self.logger = logging.getLogger('Zigbee-%d' % (zbid)) | |
| 106 self.logger.setLevel(logging.DEBUG) | |
| 107 | |
| 108 # Add the log message handler to the logger | |
| 109 handler = logging.handlers.RotatingFileHandler( | |
| 110 lognamebase % (zbid), maxBytes = 20 * 1024, backupCount = 5) | |
| 111 | |
| 112 self.logger.addHandler(handler) | |
| 113 | |
| 114 def message(self, zbid, message): | |
| 115 """Called when we get a message, check it's for us - if it is log it and write to our clients""" | |
| 116 if zbid != self.zbid: | |
| 117 return | |
| 118 | |
| 119 for c in self.clients: | |
| 120 c.message(message) | |
| 121 | |
| 122 # Logger is line oriented, convert from packet oriented here | |
| 123 self.tmpline = self.tmpline + message | |
| 124 tmp = self.tmpline.split('\n') | |
| 125 for l in tmp[0:-1]: | |
|
15
a472d6eab97e
Play back the last 5 lines to newly connected clients rather than 1.
darius@Inchoate
parents:
14
diff
changeset
|
126 self.lastlines.append(l) |
|
a472d6eab97e
Play back the last 5 lines to newly connected clients rather than 1.
darius@Inchoate
parents:
14
diff
changeset
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127 self.lastlines = self.lastlines[-5:] |
| 12 | 128 self.logger.debug(l.replace('\n', '')) |
| 129 self.tmpline = tmp[-1] | |
| 130 | |
| 131 class ZBProto(Protocol): | |
| 132 """Protocol to handle packets from the ZB module on the serial port""" | |
| 133 def __init__(self): | |
| 134 self.pkts = zb.Packets() | |
| 135 self.factories = [] | |
| 136 | |
| 137 def dataReceived(self, data): | |
| 138 """Parses data from ZB module into packets, calls each factory if a RX packet is received""" | |
| 139 #log.msg("Read data " + data) | |
| 140 if self.pkts.processstr(data) > 0: | |
| 141 while len(self.pkts.pktq) > 0: | |
| 142 a = self.pkts.pktq.pop(0) | |
| 143 #log.msg("type is " + str(type(a))) | |
| 144 if type(a) == type(zb.RX_16_Bit()): | |
| 145 #log.msg("Rx'd from %d => %s" % (a.sender, a.payloadstr)) | |
| 146 for f in self.factories: | |
| 147 f.message(a.sender, a.payloadstr) | |
| 14 | 148 if type(a) == type(zb.TX_Status()): |
| 149 #log.msg("Tx status for frame %d is %s" % (a.frameid, a.statusMsg)) | |
| 150 pass | |
| 151 | |
| 12 | 152 def sendData(self, zbid, data): |
| 153 """Sends a chunk of data to our ZB module""" | |
| 154 #log.msg("%d <= %s" % (zbid, data)) | |
| 14 | 155 |
| 12 | 156 # Chop up data into pieces the module can handle |
| 14 | 157 maxsz = zb.TX_16_Bit.PKT_MAX_PAYLOAD |
| 12 | 158 for i, j in zip(range(0, len(data), maxsz), range(maxsz, len(data) + maxsz, maxsz)): |
| 159 p = zb.TX_16_Bit(zbid, data[i:j]) | |
| 160 self.transport.write(p.Pack()) | |
| 161 #log.msg("sent " + str(p)) | |
| 14 | 162 |
| 12 | 163 if __name__ == '__main__': |
| 164 logFile = sys.stdout | |
| 165 log.startLogging(logFile) | |
| 166 | |
| 167 # ZigBee serial protocol handler | |
| 168 zbproto = ZBProto() | |
| 169 SerialPort(zbproto, portname, reactor, baudrate = 38400) | |
| 170 | |
| 171 # Per-module TCP listener | |
| 172 for id in zbids: | |
| 14 | 173 f = ZBFactory(id, lognamebase) |
| 174 f.zbproto = zbproto | |
| 175 f.protocol = lambda: TelnetTransport(TelnetBootstrapProtocol, | |
| 176 insults.ServerProtocol, | |
| 177 ZBClient) | |
| 178 zbproto.factories.append(f) | |
| 179 reactor.listenTCP(baseport + id, f) | |
| 12 | 180 |
| 181 reactor.run() |