Mercurial Repositories > eric / file comparison
comparison: DebugClients/Python/AsyncIO.py
DebugClients/Python/AsyncIO.py
- changeset 0
- de9c2efb9d02
- child 13
- 1af94a91f439
equal
deleted
inserted
replaced
| -1:000000000000 | 0:de9c2efb9d02 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2002 - 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a base class of an asynchronous interface for the debugger. | |
| 8 """ | |
| 9 | |
| 10 | |
| 11 class AsyncIO(object): | |
| 12 """ | |
| 13 Class implementing asynchronous reading and writing. | |
| 14 """ | |
| 15 def __init__(self): | |
| 16 """ | |
| 17 Constructor | |
| 18 | |
| 19 @param parent the optional parent of this object (QObject) (ignored) | |
| 20 """ | |
| 21 # There is no connection yet. | |
| 22 self.disconnect() | |
| 23 | |
| 24 def disconnect(self): | |
| 25 """ | |
| 26 Public method to disconnect any current connection. | |
| 27 """ | |
| 28 self.readfd = None | |
| 29 self.writefd = None | |
| 30 | |
| 31 def setDescriptors(self,rfd,wfd): | |
| 32 """ | |
| 33 Public method called to set the descriptors for the connection. | |
| 34 | |
| 35 @param rfd file descriptor of the input file (int) | |
| 36 @param wfd file descriptor of the output file (int) | |
| 37 """ | |
| 38 self.rbuf = '' | |
| 39 self.readfd = rfd | |
| 40 | |
| 41 self.wbuf = '' | |
| 42 self.writefd = wfd | |
| 43 | |
| 44 def readReady(self,fd): | |
| 45 """ | |
| 46 Public method called when there is data ready to be read. | |
| 47 | |
| 48 @param fd file descriptor of the file that has data to be read (int) | |
| 49 """ | |
| 50 try: | |
| 51 got = self.readfd.readline_p() | |
| 52 except: | |
| 53 return | |
| 54 | |
| 55 if len(got) == 0: | |
| 56 self.sessionClose() | |
| 57 return | |
| 58 | |
| 59 self.rbuf = self.rbuf + got | |
| 60 | |
| 61 # Call handleLine for the line if it is complete. | |
| 62 eol = self.rbuf.find('\n') | |
| 63 | |
| 64 while eol >= 0: | |
| 65 s = self.rbuf[:eol + 1] | |
| 66 self.rbuf = self.rbuf[eol + 1:] | |
| 67 self.handleLine(s) | |
| 68 eol = self.rbuf.find('\n') | |
| 69 | |
| 70 def writeReady(self,fd): | |
| 71 """ | |
| 72 Public method called when we are ready to write data. | |
| 73 | |
| 74 @param fd file descriptor of the file that has data to be written (int) | |
| 75 """ | |
| 76 self.writefd.write(self.wbuf) | |
| 77 self.writefd.flush() | |
| 78 self.wbuf = '' | |
| 79 | |
| 80 def write(self,s): | |
| 81 """ | |
| 82 Public method to write a string. | |
| 83 | |
| 84 @param s the data to be written (string) | |
| 85 """ | |
| 86 self.wbuf = self.wbuf + s |
