tests/1.8/stress/stream/pass/many-packets/test.py

   1 #!/usr/bin/env python3
   2
   3 # Expects either "prepare" or "clean" argument
   4
   5 import sys
   6 import os
   7
   8 def arg_err():
   9         print('Please specify "prepare <SIZE>" or "clean <SIZE>" as first argument.')
  10         sys.exit(-1)
  11
  12 if (len(sys.argv) <= 1):
  13         arg_err()
  14 mode = sys.argv[1]
  15 if (len(sys.argv) <= 2):
  16         arg_err()
  17 array_len = int(sys.argv[2])
  18
  19 tracedir_name = './trace-' + str(array_len) + '/'
  20 output_metadata = tracedir_name + 'metadata'
  21 output_stream = tracedir_name + 'stream'
  22
  23
  24 def write_binary(f, arr):
  25         f.write(bytes(arr))
  26
  27 def generate_metadata(array_len):
  28         # Generate metadata
  29         metadata_str = \
  30         ( '/* CTF 1.8 */\n'
  31         '\n'
  32         'typealias integer {{ size = 8; align = 8; signed = false; base = 10; }} := uint8_t;\n'
  33         'typealias integer {{ size = 32; align = 32; signed = false; base = hex; }} := uint32_t;\n'
  34         '\n'
  35         'trace {{\n'
  36         '       major = 1;\n'
  37         '       minor = 8;\n'
  38         '       uuid = "2a6422d0-6cee-11e0-8c08-cb07d7b3a564";\n'
  39         '       byte_order = le;\n'
  40         '}};\n'
  41         '\n'
  42         'stream {{\n'
  43         '       packet.context := struct {{\n'
  44         '               uint8_t packet_size; \n'
  45         '       }};\n'
  46         '}};\n').format(array_len)
  47         metadata_f = open(output_metadata, 'w')
  48         metadata_f.write(metadata_str)
  49         metadata_f.close()
  50
  51 def generate_stream(array_len):
  52         # Generate stream
  53         stream_packet_header = [
  54                 0x8,    # packet_size, in bits
  55         ]
  56         stream_f = open(output_stream, 'wb')
  57         # generate trace content filled with 1-byte packets
  58         for i in range(array_len):
  59                 write_binary(stream_f, stream_packet_header)
  60         stream_f.close()
  61
  62 def test_prepare():
  63         print('Preparing test for many packets length ' + str(array_len) + ' bytes')
  64         os.mkdir(tracedir_name)
  65         generate_metadata(array_len)
  66         generate_stream(array_len)
  67
  68 def test_clean():
  69         print('Cleaning up test for many packets length ' + str(array_len) + ' bytes')
  70         try:
  71                 os.remove(output_metadata)
  72         except:
  73                 pass
  74         try:
  75                 os.remove(output_stream)
  76         except:
  77                 pass
  78         try:
  79                 os.rmdir(tracedir_name)
  80         except:
  81                 pass
  82
  83 if (mode == "prepare"):
  84         test_clean()
  85         test_prepare()
  86 elif (mode == "clean"):
  87         test_clean()
  88 else:
  89         arg_err()