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

   1 #!/usr/bin/env python3
   2
   3 # Expects either "prepare" or "clean" argument
   4
   5 import sys
   6 import os
   7 import struct
   8
   9 def arg_err():
  10         print('Please specify "prepare <SIZE>" or "clean <SIZE>" as first argument.')
  11         sys.exit(-1)
  12
  13 if (len(sys.argv) <= 1):
  14         arg_err()
  15 mode = sys.argv[1]
  16 if (len(sys.argv) <= 2):
  17         arg_err()
  18 array_len = int(sys.argv[2])
  19
  20 tracedir_name = './trace-' + str(array_len) + '/'
  21 output_metadata = tracedir_name + 'metadata'
  22 output_stream = tracedir_name + 'stream'
  23
  24
  25 def write_binary(f, arr):
  26         f.write(bytes(arr))
  27
  28 def generate_metadata(array_len):
  29         # Generate metadata
  30         metadata_str = \
  31         ( '/* CTF 1.8 */\n'
  32         '\n'
  33         'typealias integer {{ size = 8; align = 8; signed = false; base = 10; }} := uint8_t;\n'
  34         'typealias integer {{ size = 32; align = 8; signed = false; base = hex; }} := uint32_t;\n'
  35         'typealias integer {{ size = 64; align = 8; signed = false; base = hex; }} := uint64_t;\n'
  36         '\n'
  37         'trace {{\n'
  38         '       major = 0;\n'
  39         '       minor = 0;\n'
  40         '       uuid = "2a6422d0-6cee-11e0-8c08-cb07d7b3a564";\n'
  41         '       byte_order = le;\n'
  42         '       packet.header := struct {{\n'
  43         '               uint32_t magic;\n'
  44         '               uint8_t uuid[16];\n'
  45         '       }};\n'
  46         '}};\n'
  47         '\n'
  48         'stream {{\n'
  49         '       event.header := struct {{\n'
  50         '               uint64_t id;\n'
  51         '       }};\n'
  52         '}};\n'
  53         '\n').format()
  54
  55         metadata_event = \
  56         ( 'event {{\n'
  57         '       name = e{};\n'
  58         '       id = {};\n'
  59         '}};\n')
  60
  61         metadata_f = open(output_metadata, 'w')
  62         metadata_f.write(metadata_str)
  63         for i in range(array_len):
  64                 metadata_f.write(metadata_event.format(i, i))
  65         metadata_f.close()
  66
  67 def generate_stream(array_len):
  68         # Generate stream
  69         stream_packet_header = [
  70           0xC1, 0x1F, 0xFC, 0xC1,       # magic
  71           0x2A, 0x64, 0x22, 0xD0, 0x6C, 0xEE, 0x11, 0xE0,
  72           0x8C, 0x08, 0xCB, 0x07, 0xD7, 0xB3, 0xA5, 0x64, # uuid
  73         ]
  74         stream_f = open(output_stream, 'wb')
  75         write_binary(stream_f, stream_packet_header)
  76         # generate 8 bytes per event
  77         for i in range(array_len):
  78                 write_binary(stream_f, struct.pack('<Q', i))
  79         stream_f.close()
  80
  81 def test_prepare():
  82         print('Preparing test for ' + str(array_len) + ' events')
  83         os.mkdir(tracedir_name)
  84         generate_metadata(array_len)
  85         generate_stream(array_len)
  86
  87 def test_clean():
  88         print('Cleaning up test for ' + str(array_len) + ' events')
  89         try:
  90                 os.remove(output_metadata)
  91         except:
  92                 pass
  93         try:
  94                 os.remove(output_stream)
  95         except:
  96                 pass
  97         try:
  98                 os.rmdir(tracedir_name)
  99         except:
 100                 pass
 101
 102 if (mode == "prepare"):
 103         test_clean()
 104         test_prepare()
 105 elif (mode == "clean"):
 106         test_clean()
 107 else:
 108         arg_err()