How to use go_online method in fMBT

Best Python code snippet using fMBT_python

dispersy_preprocessor.py

Source:dispersy_preprocessor.py

1import os2import sys3from random import expovariate, random, randint4from gumby.scenario import ScenarioRunner5class ScenarioPreProcessor(ScenarioRunner):6    def __init__(self, filename, outputfile=sys.stdout, max_tstmp=0):7        ScenarioRunner.__init__(self, filename)8        self._callables = {}9        self._callables['churn'] = self.churn10        self._callables['churn_pattern'] = self.churn_pattern11        print >> sys.stderr, "Looking for max_timestamp, max_peer... in %s" % filename,12        self.max_peer = 013        for (tstmp, lineno, clb, args) in self._parse_scenario(filename):14            max_tstmp = max(tstmp, max_tstmp)15        print >> sys.stderr, "\tfound %d and %d" % (max_tstmp, self.max_peer)16        _max_peer = self.max_peer17        print >> sys.stderr, "Preprocessing file...",18        for (tstmp, lineno, clb, args) in self._parse_scenario(filename):19            print >> outputfile, self.file_buffer[1][lineno - 1][1]20            if clb in self._callables:21                for peer in self.yes_peers:22                    for line in self._callables[clb](tstmp, max_tstmp, *args):23                        print >> outputfile, line, '{%s}' % peer24        print >> sys.stderr, "\tdone"25    def _parse_for_this_peer(self, peerspec):26        if peerspec:27            self.yes_peers, self.no_peers = self._parse_peerspec(peerspec)28            self.max_peer = max(self.max_peer, max(self.yes_peers))29        else:30            self.yes_peers = set()31            self.no_peers = set()32        if not self.yes_peers:33            self.yes_peers = set(range(1, self.max_peer + 1))34        for peer in self.no_peers:35            self.yes_peers.discard(peer)36        return True37    def churn(self, tstmp, max_tstmp, churn_type, desired_mean=300, min_online=5.0):38        desired_mean = float(desired_mean)39        min_online = float(min_online)40        def get_delay(step):41            if churn_type == 'expon':42                return min_online + expovariate(1.0 / (desired_mean - min_online))43            elif churn_type == 'fixed':44                if step == 1:45                    return randint(min_online, desired_mean)46                return desired_mean47            else:48                raise NotImplementedError('only expon churn is implemented, got %s' % churn_type)49        go_online = random() < 0.550        step = 151        while tstmp < max_tstmp:52            yield "@0:%d %s" % (tstmp, "online" if go_online else "offline")53            tstmp += get_delay(step)54            go_online = not go_online55            step += 156    def churn_pattern(self, tstmp, max_tstmp, pattern, min_online=5.0):57        pattern = [online / 100.0 for online in map(float, pattern.split(','))]58        min_online = float(min_online)59        i = 060        prev_state = None61        while tstmp < max_tstmp:62            go_online = random() < pattern[i]63            i = (i + 1) % len(pattern)64            if go_online != prev_state:65                yield "@0:%d %s" % (tstmp, "online" if go_online else "offline")66                prev_state = go_online67            tstmp += min_online68def main(inputfile, outputfile, maxtime=0):69    inputfile = os.path.abspath(inputfile)70    if os.path.exists(inputfile):71        f = open(outputfile, 'w')72        ScenarioPreProcessor(inputfile, f, maxtime)73        f.close()74    else:75        print >> sys.stderr, inputfile, "not found"76if __name__ == '__main__':77    if len(sys.argv) < 3:78        print "Usage: %s <input-file> <output-file> (<max-time>)" % (sys.argv[0])79        print >> sys.stderr, sys.argv80        exit(1)81    if len(sys.argv) == 4:82        main(sys.argv[1], sys.argv[2], float(sys.argv[3]))83    else:...

03_internet_cafe.py

Source:03_internet_cafe.py

1from time import sleep2from concurrent.futures import ThreadPoolExecutor, as_completed3from random import randint4def go_online(i):5  print('Tourist {} is online'.format(i))6  duration = randint(3, 5)7  sleep(duration)8  print('Tourist {} spend {} hours online'.format(i, duration))9  return True10def queue(i):11  print('Tourist {} is waiting to go online'.format(i))12def check_queue(tourists, already_online):13  [queue(tourist) for tourist in tourists if tourist not in already_online]14def main():15  already_online = {}16  tourists = [i for i in range(25)]17  is_queue = False18  with ThreadPoolExecutor(max_workers = 8) as executor:...

01_computer.py

Source:01_computer.py

2	def open(self, link):        3		self.current_link = link        4		print(f"Link '{link}' was opened!")5class Computer:6	def go_online(self):        7		return BrowserWindow()    8	def open_itvdn_lesson(self):        9		browser_window = self.go_online()        10		browser_window.open("itvdn.com")        11		return browser_window12my_own_computer = Computer()...

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