tests/1.8/stress/stream/pass/struct-many-fields/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_str1 = \
  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').format()
  49
  50         metadata_str2 = \
  51         '               uint8_t f{}; \n'
  52
  53         metadata_str3 = \
  54         ( '     }};\n'
  55         '}};\n').format()
  56         metadata_f = open(output_metadata, 'w')
  57         metadata_f.write(metadata_str1)
  58         for i in range(array_len):
  59                 metadata_f.write(metadata_str2.format(i))
  60         metadata_f.write(metadata_str3)
  61         metadata_f.close()
  62
  63 def generate_stream(array_len):
  64         # Generate stream
  65         stream_packet_header = [
  66           0xC1, 0x1F, 0xFC, 0xC1,       # magic
  67           0x2A, 0x64, 0x22, 0xD0, 0x6C, 0xEE, 0x11, 0xE0,
  68           0x8C, 0x08, 0xCB, 0x07, 0xD7, 0xB3, 0xA5, 0x64, # uuid
  69         ]
  70         stream_f = open(output_stream, 'wb')
  71         write_binary(stream_f, stream_packet_header)
  72         # generate array as event content
  73         os.ftruncate(stream_f.fileno(), len(stream_packet_header) + array_len)
  74         stream_f.close()
  75
  76 def test_prepare():
  77         print('Preparing test for many field structure length ' + str(array_len) + ' fields')
  78         os.mkdir(tracedir_name)
  79         generate_metadata(array_len)
  80         generate_stream(array_len)
  81
  82 def test_clean():
  83         print('Cleaning up test for many field structure length ' + str(array_len) + ' fields')
  84         try:
  85                 os.remove(output_metadata)
  86         except:
  87                 pass
  88         try:
  89                 os.remove(output_stream)
  90         except:
  91                 pass
  92         try:
  93                 os.rmdir(tracedir_name)
  94         except:
  95                 pass
  96
  97 if (mode == "prepare"):
  98         test_clean()
  99         test_prepare()
 100 elif (mode == "clean"):
 101         test_clean()
 102 else:
 103         arg_err()