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import os, sys, re, time, subprocess
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2
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from multiprocessing import Process, Value, Array, Pipe
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3
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4
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#------------------------------------------------
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5
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# constants ------------------------------------
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6
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#------------------------------------------------
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7
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8
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executeable = './dinner'
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9
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parameters = ['3', '10']
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10
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11
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outputFile = 'output.txt'
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12
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outputFormat = '^\d+;\d+;\d+$'
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13
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14
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#------------------------------------------------
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15
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# global variables ------------------------------
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16
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#------------------------------------------------
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17
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18
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maximalthreadcount=Value('i',0)
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19
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20
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#------------------------------------------------
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21
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# functions -------------------------------------
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#------------------------------------------------
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23
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24
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# polling thread body
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25
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def pollingthreadbody(pipeRecv):
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26
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#print("Waiting for PID")
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27
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processid=pipeRecv.recv()[0]
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28
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#print("Got PID "+str(processid))
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29
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while True:
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30
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#print("Poll")
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31
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prog = os.popen('cat /proc/' + str(processid) + '/status | grep Thread')
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32
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threadline = prog.read()
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33
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if not threadline.startswith('Threads:'):
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34
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return 0
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35
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#print("#"+threadline+"#")
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36
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currentthreadcount=int(threadline.replace("Threads:", "").strip())
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37
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if currentthreadcount > maximalthreadcount.value:
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38
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print("Found %u threads in application"%currentthreadcount)
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39
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maximalthreadcount.value = currentthreadcount
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40
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time.sleep(100)
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41
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42
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# execute command
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43
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def execute(command, parameters, pipeSend):
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44
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pollingthread.start()
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45
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start = time.time()
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46
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proc = subprocess.Popen([command] + parameters)
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47
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pipeSend.send([proc.pid])
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48
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proc.communicate()
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49
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end = time.time()
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50
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pollingthread.terminate()
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51
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threadcount = maximalthreadcount.value
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52
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print("Runtime: %.4fs" % (end - start))
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53
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print("Max thread count: " + str(threadcount))
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54
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55
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# check if file exists
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56
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def ensurefileexists(file):
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57
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if not os.path.exists(file) or not os.path.isfile(file):
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58
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errorexit("File not found: " + file, 1)
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59
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60
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# exit with message and error code
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61
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def errorexit(message, exitcode):
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62
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print("[ERROR]-----------------------------")
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63
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print(message)
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64
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print("------------------------------------")
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65
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sys.exit(exitcode)
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66
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67
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# check if text is in the correct format
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68
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def matches(text, format):
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69
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match = re.search(format, text)
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70
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if match is None:
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71
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return False
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72
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return match.group(0) != ""
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73
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74
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# check if file content matches pattern
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75
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def checkcontent(f, format):
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76
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text = f.read()
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77
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if not matches(text, format):
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78
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errorexit("Result file does not match regular expression:\n" + format + "\n\n" + outputFile + "\n" + text, 3)
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79
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80
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# check if file content matches pattern
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81
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def checkfile(file, contentformat):
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82
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# try open file
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83
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try:
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84
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with open(file) as f:
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85
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checkcontent(f, contentformat)
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86
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except IOError as e:
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87
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errorexit("Could not open file: " + file, 2)
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88
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89
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#------------------------------------------------
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90
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# program starts HERE ---------------------------
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91
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#------------------------------------------------
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92
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93
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if __name__ == '__main__':
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94
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pipeRecv, pipeSend = Pipe(duplex=False)
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95
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pollingthread = Process(target=pollingthreadbody, args=(pipeRecv,))
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96
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97
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ensurefileexists(executeable)
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98
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execute(executeable, parameters, pipeSend)
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99
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100
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ensurefileexists(outputFile)
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101
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checkfile(outputFile, outputFormat)
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102
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troeger /
opensubmit
