AU: Catch terminate signals and block exit if necessary.

Adds a global Terminator class to manage signals and exit blocking.

BUG=7392
TEST=unit tests, gmerged on device, initctl stop update-engine

Change-Id: I2291d4eb55240a6662b18ff834af161d957bce2f

Review URL: http://codereview.chromium.org/3608015
7 files changed
tree: 63b0b48451c44c85deecd387b883aa67802e441c
  1. certs/
  2. .gitignore
  3. action.h
  4. action_mock.h
  5. action_pipe.h
  6. action_pipe_unittest.cc
  7. action_processor.cc
  8. action_processor.h
  9. action_processor_mock.h
  10. action_processor_unittest.cc
  11. action_unittest.cc
  12. buffered_file_writer.cc
  13. buffered_file_writer.h
  14. buffered_file_writer_unittest.cc
  15. bzip.cc
  16. bzip.h
  17. bzip_extent_writer.cc
  18. bzip_extent_writer.h
  19. bzip_extent_writer_unittest.cc
  20. cycle_breaker.cc
  21. cycle_breaker.h
  22. cycle_breaker_unittest.cc
  23. dbus_constants.h
  24. dbus_service.cc
  25. dbus_service.h
  26. decompressing_file_writer.cc
  27. decompressing_file_writer.h
  28. decompressing_file_writer_unittest.cc
  29. delta_diff_generator.cc
  30. delta_diff_generator.h
  31. delta_diff_generator_unittest.cc
  32. delta_performer.cc
  33. delta_performer.h
  34. delta_performer_unittest.cc
  35. download_action.cc
  36. download_action.h
  37. download_action_unittest.cc
  38. extent_mapper.cc
  39. extent_mapper.h
  40. extent_mapper_unittest.cc
  41. extent_ranges.cc
  42. extent_ranges.h
  43. extent_ranges_unittest.cc
  44. extent_writer.cc
  45. extent_writer.h
  46. extent_writer_unittest.cc
  47. file_writer.cc
  48. file_writer.h
  49. file_writer_mock.h
  50. file_writer_unittest.cc
  51. filesystem_copier_action.cc
  52. filesystem_copier_action.h
  53. filesystem_copier_action_unittest.cc
  54. filesystem_iterator.cc
  55. filesystem_iterator.h
  56. filesystem_iterator_unittest.cc
  57. gen_coverage_html.sh
  58. generate_delta_main.cc
  59. graph_types.h
  60. graph_utils.cc
  61. graph_utils.h
  62. graph_utils_unittest.cc
  63. gzip.cc
  64. gzip.h
  65. http_fetcher.h
  66. http_fetcher_unittest.cc
  67. inherit-review-settings-ok
  68. install_plan.h
  69. integration_unittest.cc
  70. libcurl_http_fetcher.cc
  71. libcurl_http_fetcher.h
  72. LICENSE
  73. local_coverage_rate.sh
  74. main.cc
  75. marshal.list
  76. mock_file_writer.h
  77. mock_http_fetcher.cc
  78. mock_http_fetcher.h
  79. omaha_hash_calculator.cc
  80. omaha_hash_calculator.h
  81. omaha_hash_calculator_unittest.cc
  82. omaha_request_action.cc
  83. omaha_request_action.h
  84. omaha_request_action_unittest.cc
  85. omaha_request_params.cc
  86. omaha_request_params.h
  87. omaha_request_params_unittest.cc
  88. omaha_response_handler_action.cc
  89. omaha_response_handler_action.h
  90. omaha_response_handler_action_unittest.cc
  91. org.chromium.UpdateEngine.service
  92. payload_signer.cc
  93. payload_signer.h
  94. payload_signer_unittest.cc
  95. postinstall_runner_action.cc
  96. postinstall_runner_action.h
  97. postinstall_runner_action_unittest.cc
  98. prefs.cc
  99. prefs.h
  100. prefs_interface.h
  101. prefs_mock.h
  102. prefs_unittest.cc
  103. SConstruct
  104. set_bootable_flag_action.cc
  105. set_bootable_flag_action.h
  106. set_bootable_flag_action_unittest.cc
  107. setup_dev_packages
  108. simple_key_value_store.cc
  109. simple_key_value_store.h
  110. simple_key_value_store_unittest.cc
  111. split_file_writer.cc
  112. split_file_writer.h
  113. split_file_writer_unittest.cc
  114. subprocess.cc
  115. subprocess.h
  116. subprocess_unittest.cc
  117. tarjan.cc
  118. tarjan.h
  119. tarjan_unittest.cc
  120. terminator.cc
  121. terminator.h
  122. test_http_server.cc
  123. test_http_server.py
  124. test_utils.cc
  125. test_utils.h
  126. testrunner.cc
  127. topological_sort.cc
  128. topological_sort.h
  129. topological_sort_unittest.cc
  130. unittest_key.pem
  131. update_attempter.cc
  132. update_attempter.h
  133. update_attempter_mock.h
  134. update_attempter_unittest.cc
  135. update_check_scheduler.cc
  136. update_check_scheduler.h
  137. update_check_scheduler_unittest.cc
  138. update_engine.xml
  139. update_engine_client.cc
  140. update_metadata.proto
  141. UpdateEngine.conf
  142. utils.cc
  143. utils.h
  144. utils_unittest.cc
  145. WATCHLISTS
  146. zip_unittest.cc