tests/1.8/stress/stream/pass/packet-large/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 = 0;\n'
  37         '       minor = 0;\n'
  38         '       uuid = "2a6422d0-6cee-11e0-8c08-cb07d7b3a564";\n'
  39         '       byte_order = le;\n'
  40         '       packet.header := struct {{\n'
  41         '               uint32_t magic;\n'
  42         '               uint8_t uuid[16];\n'
  43         '       }};\n'
  44         '}};\n'
  45         '\n'
  46         'event {{\n'
  47         '       name = myevent;\n'
  48         '       fields := struct {{\n'
  49         '               uint8_t field; \n'
  50         '       }};\n'
  51         '}};\n').format()
  52         metadata_f = open(output_metadata, 'w')
  53         metadata_f.write(metadata_str)
  54         metadata_f.close()
  55
  56 def generate_stream(array_len):
  57         # Generate stream
  58         stream_packet_header = [
  59           0xC1, 0x1F, 0xFC, 0xC1,       # magic
  60           0x2A, 0x64, 0x22, 0xD0, 0x6C, 0xEE, 0x11, 0xE0,
  61           0x8C, 0x08, 0xCB, 0x07, 0xD7, 0xB3, 0xA5, 0x64, # uuid
  62         ]
  63         stream_f = open(output_stream, 'wb')
  64         write_binary(stream_f, stream_packet_header)
  65         # generate array as event content
  66         os.ftruncate(stream_f.fileno(), len(stream_packet_header) + array_len)
  67         stream_f.close()
  68
  69 def test_prepare():
  70         print('Preparing test for packet length ' + str(array_len) + ' bytes')
  71         os.mkdir(tracedir_name)
  72         generate_metadata(array_len)
  73         generate_stream(array_len)
  74
  75 def test_clean():
  76         print('Cleaning up test for packet length ' + str(array_len) + ' bytes')
  77         try:
  78                 os.remove(output_metadata)
  79         except:
  80                 pass
  81         try:
  82                 os.remove(output_stream)
  83         except:
  84                 pass
  85         try:
  86                 os.rmdir(tracedir_name)
  87         except:
  88                 pass
  89
  90 if (mode == "prepare"):
  91         test_clean()
  92         test_prepare()
  93 elif (mode == "clean"):
  94         test_clean()
  95 else:
  96         arg_err()