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android / platform / packages / modules / adb / 58cc5157
commit58cc51574ac3ad571956bdb6ed056d8b24327a6f[log] [tgz]
authorJosh Gao <jmgao@google.com>Tue May 19 15:57:06 2020 -0700
committerJosh Gao <jmgao@google.com>Wed May 20 21:03:18 2020 +0000
treed6f7149153e00aa205c16b23f4c5b7fb549ae2db
parent31ff0ca15ed28825b00df01e23447059bb682156 [diff]
adb: only submit USB writes on the worker thread.

After USB disconnection, io_submit will block until the endpoint comes
back up. We handle this in the worker thread by sending it a signal to
break it out of io_submit when we notice that USB has gone down, but
opportunistic writes from the main thread can get stuck in this scenario
as well. Submitting the writes only on the worker thread doesn't have a
measurable impact on performance, so avert this scenario by only
submitting writes from the worker thread.

Bug: http://b/157078255
Test: test_device.py
Change-Id: I1118f2e2a70d13f15592eb996e7084033ed5cb9d
1 file changed
tree: d6f7149153e00aa205c16b23f4c5b7fb549ae2db
  1. apex/
  2. client/
  3. coverage/
  4. crypto/
  5. daemon/
  6. fastdeploy/
  7. fdevent/
  8. libs/
  9. pairing_auth/
  10. pairing_connection/
  11. proto/
  12. sysdeps/
  13. tls/
  14. tools/
  15. .clang-format ⇨ ../.clang-format-4
  16. adb.bash
  17. adb.cpp
  18. adb.h
  19. adb_auth.h
  20. adb_integration_test_adb.xml
  21. adb_integration_test_device.xml
  22. adb_io.cpp
  23. adb_io.h
  24. adb_io_test.cpp
  25. adb_listeners.cpp
  26. adb_listeners.h
  27. adb_listeners_test.cpp
  28. adb_mdns.h
  29. adb_trace.cpp
  30. adb_trace.h
  31. adb_unique_fd.cpp
  32. adb_unique_fd.h
  33. adb_utils.cpp
  34. adb_utils.h
  35. adb_utils_test.cpp
  36. adb_wifi.h
  37. Android.bp
  38. benchmark_device.py
  39. bugreport_test.cpp
  40. compression_utils.h
  41. file_sync_protocol.h
  42. mdns_test.cpp
  43. MODULE_LICENSE_APACHE2
  44. NOTICE
  45. OVERVIEW.TXT
  46. OWNERS
  47. protocol.txt
  48. security_log_tags.h
  49. services.cpp
  50. services.h
  51. SERVICES.TXT
  52. shell_protocol.h
  53. shell_service_protocol.cpp
  54. shell_service_protocol_test.cpp
  55. SOCKET-ACTIVATION.txt
  56. socket.h
  57. socket_spec.cpp
  58. socket_spec.h
  59. socket_spec_test.cpp
  60. socket_test.cpp
  61. sockets.cpp
  62. sockets.dia
  63. SYNC.TXT
  64. sysdeps.h
  65. sysdeps_test.cpp
  66. sysdeps_unix.cpp
  67. sysdeps_win32.cpp
  68. sysdeps_win32_test.cpp
  69. test_adb.py
  70. test_device.py
  71. trace.sh
  72. transport.cpp
  73. transport.h
  74. transport_benchmark.cpp
  75. transport_fd.cpp
  76. transport_test.cpp
  77. types.cpp
  78. types.h
  79. types_test.cpp