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Whitespace normalization.
This commit is contained in:
Tim Peters
parent
dfc538acae
commit
172c40b20a
3 changed files with 180 additions and 180 deletions
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@ -32,121 +32,121 @@ import thread
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class WorkQ:
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# Invariants:
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# Invariants:
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# - busy and work are only modified when mutex is locked
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# - len(work) is the number of jobs ready to be taken
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# - busy is the number of jobs being done
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# - todo is locked iff there is no work and somebody is busy
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# - busy and work are only modified when mutex is locked
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# - len(work) is the number of jobs ready to be taken
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# - busy is the number of jobs being done
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# - todo is locked iff there is no work and somebody is busy
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def __init__(self):
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self.mutex = thread.allocate()
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self.todo = thread.allocate()
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self.todo.acquire()
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self.work = []
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self.busy = 0
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def __init__(self):
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self.mutex = thread.allocate()
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self.todo = thread.allocate()
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self.todo.acquire()
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self.work = []
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self.busy = 0
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def addwork(self, func, args):
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job = (func, args)
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self.mutex.acquire()
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self.work.append(job)
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self.mutex.release()
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if len(self.work) == 1:
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self.todo.release()
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def addwork(self, func, args):
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job = (func, args)
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self.mutex.acquire()
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self.work.append(job)
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self.mutex.release()
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if len(self.work) == 1:
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self.todo.release()
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def _getwork(self):
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self.todo.acquire()
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self.mutex.acquire()
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if self.busy == 0 and len(self.work) == 0:
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self.mutex.release()
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self.todo.release()
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return None
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job = self.work[0]
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del self.work[0]
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self.busy = self.busy + 1
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self.mutex.release()
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if len(self.work) > 0:
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self.todo.release()
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return job
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def _getwork(self):
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self.todo.acquire()
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self.mutex.acquire()
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if self.busy == 0 and len(self.work) == 0:
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self.mutex.release()
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self.todo.release()
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return None
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job = self.work[0]
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del self.work[0]
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self.busy = self.busy + 1
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self.mutex.release()
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if len(self.work) > 0:
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self.todo.release()
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return job
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def _donework(self):
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self.mutex.acquire()
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self.busy = self.busy - 1
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if self.busy == 0 and len(self.work) == 0:
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self.todo.release()
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self.mutex.release()
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def _donework(self):
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self.mutex.acquire()
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self.busy = self.busy - 1
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if self.busy == 0 and len(self.work) == 0:
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self.todo.release()
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self.mutex.release()
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def _worker(self):
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time.sleep(0.00001) # Let other threads run
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while 1:
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job = self._getwork()
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if not job:
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break
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func, args = job
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apply(func, args)
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self._donework()
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def _worker(self):
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time.sleep(0.00001) # Let other threads run
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while 1:
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job = self._getwork()
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if not job:
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break
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func, args = job
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apply(func, args)
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self._donework()
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def run(self, nworkers):
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if not self.work:
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return # Nothing to do
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for i in range(nworkers-1):
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thread.start_new(self._worker, ())
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self._worker()
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self.todo.acquire()
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def run(self, nworkers):
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if not self.work:
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return # Nothing to do
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for i in range(nworkers-1):
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thread.start_new(self._worker, ())
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self._worker()
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self.todo.acquire()
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# Main program
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def main():
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sys.argv.append("/tmp")
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nworkers = 4
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opts, args = getopt.getopt(sys.argv[1:], '-w:')
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for opt, arg in opts:
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if opt == '-w':
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nworkers = string.atoi(arg)
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if not args:
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args = [os.curdir]
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sys.argv.append("/tmp")
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nworkers = 4
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opts, args = getopt.getopt(sys.argv[1:], '-w:')
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for opt, arg in opts:
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if opt == '-w':
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nworkers = string.atoi(arg)
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if not args:
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args = [os.curdir]
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wq = WorkQ()
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for dir in args:
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wq.addwork(find, (dir, selector, wq))
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wq = WorkQ()
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for dir in args:
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wq.addwork(find, (dir, selector, wq))
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t1 = time.time()
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wq.run(nworkers)
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t2 = time.time()
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t1 = time.time()
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wq.run(nworkers)
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t2 = time.time()
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sys.stderr.write('Total time ' + `t2-t1` + ' sec.\n')
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sys.stderr.write('Total time ' + `t2-t1` + ' sec.\n')
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# The predicate -- defines what files we look for.
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# Feel free to change this to suit your purpose
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def selector(dir, name, fullname, stat):
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# Look for group or world writable files
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return (stat[ST_MODE] & 0022) != 0
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# Look for group or world writable files
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return (stat[ST_MODE] & 0022) != 0
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# The find procedure -- calls wq.addwork() for subdirectories
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def find(dir, pred, wq):
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try:
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names = os.listdir(dir)
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except os.error, msg:
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print `dir`, ':', msg
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return
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for name in names:
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if name not in (os.curdir, os.pardir):
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fullname = os.path.join(dir, name)
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try:
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stat = os.lstat(fullname)
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except os.error, msg:
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print `fullname`, ':', msg
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continue
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if pred(dir, name, fullname, stat):
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print fullname
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if S_ISDIR(stat[ST_MODE]):
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if not os.path.ismount(fullname):
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wq.addwork(find, (fullname, pred, wq))
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try:
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names = os.listdir(dir)
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except os.error, msg:
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print `dir`, ':', msg
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return
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for name in names:
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if name not in (os.curdir, os.pardir):
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fullname = os.path.join(dir, name)
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try:
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stat = os.lstat(fullname)
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except os.error, msg:
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print `fullname`, ':', msg
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continue
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if pred(dir, name, fullname, stat):
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print fullname
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if S_ISDIR(stat[ST_MODE]):
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if not os.path.ismount(fullname):
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wq.addwork(find, (fullname, pred, wq))
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# Call the main program
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@ -21,94 +21,94 @@ BUFSIZE = 8*1024
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# Telnet protocol characters
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IAC = chr(255) # Interpret as command
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IAC = chr(255) # Interpret as command
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DONT = chr(254)
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DO = chr(253)
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WONT = chr(252)
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WILL = chr(251)
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def main():
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if len(sys.argv) < 2:
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sys.stderr.write('usage: telnet hostname [port]\n')
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sys.exit(2)
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host = sys.argv[1]
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try:
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hostaddr = gethostbyname(host)
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except error:
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sys.stderr.write(sys.argv[1] + ': bad host name\n')
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sys.exit(2)
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#
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if len(sys.argv) > 2:
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servname = sys.argv[2]
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else:
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servname = 'telnet'
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#
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if '0' <= servname[:1] <= '9':
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port = eval(servname)
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else:
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try:
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port = getservbyname(servname, 'tcp')
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except error:
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sys.stderr.write(servname + ': bad tcp service name\n')
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sys.exit(2)
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#
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s = socket(AF_INET, SOCK_STREAM)
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#
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try:
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s.connect((host, port))
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except error, msg:
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sys.stderr.write('connect failed: ' + `msg` + '\n')
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sys.exit(1)
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#
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thread.start_new(child, (s,))
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parent(s)
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if len(sys.argv) < 2:
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sys.stderr.write('usage: telnet hostname [port]\n')
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sys.exit(2)
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host = sys.argv[1]
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try:
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hostaddr = gethostbyname(host)
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except error:
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sys.stderr.write(sys.argv[1] + ': bad host name\n')
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sys.exit(2)
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#
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if len(sys.argv) > 2:
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servname = sys.argv[2]
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else:
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servname = 'telnet'
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#
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if '0' <= servname[:1] <= '9':
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port = eval(servname)
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else:
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try:
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port = getservbyname(servname, 'tcp')
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except error:
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sys.stderr.write(servname + ': bad tcp service name\n')
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sys.exit(2)
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#
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s = socket(AF_INET, SOCK_STREAM)
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#
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try:
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s.connect((host, port))
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except error, msg:
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sys.stderr.write('connect failed: ' + `msg` + '\n')
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sys.exit(1)
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#
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thread.start_new(child, (s,))
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parent(s)
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def parent(s):
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# read socket, write stdout
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iac = 0 # Interpret next char as command
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opt = '' # Interpret next char as option
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while 1:
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data, dummy = s.recvfrom(BUFSIZE)
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if not data:
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# EOF -- exit
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sys.stderr.write( '(Closed by remote host)\n')
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sys.exit(1)
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cleandata = ''
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for c in data:
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if opt:
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print ord(c)
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## print '(replying: ' + `opt+c` + ')'
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s.send(opt + c)
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opt = ''
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elif iac:
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iac = 0
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if c == IAC:
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cleandata = cleandata + c
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elif c in (DO, DONT):
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if c == DO: print '(DO)',
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else: print '(DONT)',
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opt = IAC + WONT
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elif c in (WILL, WONT):
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if c == WILL: print '(WILL)',
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else: print '(WONT)',
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opt = IAC + DONT
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else:
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print '(command)', ord(c)
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elif c == IAC:
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iac = 1
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print '(IAC)',
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else:
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cleandata = cleandata + c
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sys.stdout.write(cleandata)
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sys.stdout.flush()
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## print 'Out:', `cleandata`
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# read socket, write stdout
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iac = 0 # Interpret next char as command
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opt = '' # Interpret next char as option
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while 1:
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data, dummy = s.recvfrom(BUFSIZE)
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if not data:
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# EOF -- exit
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sys.stderr.write( '(Closed by remote host)\n')
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sys.exit(1)
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cleandata = ''
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for c in data:
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if opt:
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print ord(c)
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## print '(replying: ' + `opt+c` + ')'
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s.send(opt + c)
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opt = ''
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elif iac:
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iac = 0
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if c == IAC:
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cleandata = cleandata + c
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elif c in (DO, DONT):
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if c == DO: print '(DO)',
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else: print '(DONT)',
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opt = IAC + WONT
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elif c in (WILL, WONT):
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if c == WILL: print '(WILL)',
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else: print '(WONT)',
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opt = IAC + DONT
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else:
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print '(command)', ord(c)
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elif c == IAC:
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iac = 1
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print '(IAC)',
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else:
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cleandata = cleandata + c
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sys.stdout.write(cleandata)
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sys.stdout.flush()
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## print 'Out:', `cleandata`
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def child(s):
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# read stdin, write socket
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while 1:
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line = sys.stdin.readline()
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## print 'Got:', `line`
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if not line: break
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s.send(line)
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# read stdin, write socket
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while 1:
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line = sys.stdin.readline()
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## print 'Got:', `line`
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if not line: break
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s.send(line)
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main()
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