Google Git
Sign in
pigweed / pigweed / pigweed / ebe9b8529a2318b6afad66d7ba0a83f08da2e46e
commitebe9b8529a2318b6afad66d7ba0a83f08da2e46e[log] [tgz]
authorEwout van Bekkum <ewout@google.com>Tue Jun 22 13:54:50 2021 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Jun 22 23:03:09 2021 +0000
treefc14185f9208d5808d71000167c2b5e0009ddce0
parentc66851d9ee5a796c9edf67a7cecf2e033f824362 [diff]
pw_sync_embos: Disable task switching in the ISL

Updates the pw::sync::InterruptSpinLock implementation for embOS to
disable task switching if not in an interrupt. This way there's no
risk that the current task gets switched out to another which
recursively attempts to grab the same lock.

This also changes the internal state to use a plain bool instead
of an atomic bool as an atomic is not necessary.

Change-Id: Ic30bdbee2b298398056d0e5dcdae878ac681f95d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/50462
Reviewed-by: Wyatt Hepler <hepler@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Pigweed-Auto-Submit: Ewout van Bekkum <ewout@google.com>
3 files changed
tree: fc14185f9208d5808d71000167c2b5e0009ddce0
  1. build_overrides/
  2. docker/
  3. docs/
  4. pw_allocator/
  5. pw_analog/
  6. pw_arduino_build/
  7. pw_assert/
  8. pw_assert_basic/
  9. pw_assert_log/
  10. pw_base64/
  11. pw_bloat/
  12. pw_blob_store/
  13. pw_boot_armv7m/
  14. pw_build/
  15. pw_bytes/
  16. pw_checksum/
  17. pw_chrono/
  18. pw_chrono_embos/
  19. pw_chrono_freertos/
  20. pw_chrono_stl/
  21. pw_chrono_threadx/
  22. pw_cli/
  23. pw_console/
  24. pw_containers/
  25. pw_cpu_exception/
  26. pw_cpu_exception_cortex_m/
  27. pw_docgen/
  28. pw_doctor/
  29. pw_env_setup/
  30. pw_function/
  31. pw_fuzzer/
  32. pw_hdlc/
  33. pw_hex_dump/
  34. pw_i2c/
  35. pw_interrupt/
  36. pw_interrupt_cortex_m/
  37. pw_kvs/
  38. pw_libc/
  39. pw_log/
  40. pw_log_basic/
  41. pw_log_multisink/
  42. pw_log_null/
  43. pw_log_rpc/
  44. pw_log_sink/
  45. pw_log_tokenized/
  46. pw_malloc/
  47. pw_malloc_freelist/
  48. pw_metric/
  49. pw_minimal_cpp_stdlib/
  50. pw_module/
  51. pw_multisink/
  52. pw_package/
  53. pw_persistent_ram/
  54. pw_polyfill/
  55. pw_preprocessor/
  56. pw_presubmit/
  57. pw_protobuf/
  58. pw_protobuf_compiler/
  59. pw_random/
  60. pw_result/
  61. pw_ring_buffer/
  62. pw_router/
  63. pw_rpc/
  64. pw_snapshot/
  65. pw_span/
  66. pw_status/
  67. pw_stm32cube_build/
  68. pw_stream/
  69. pw_string/
  70. pw_sync/
  71. pw_sync_baremetal/
  72. pw_sync_embos/
  73. pw_sync_freertos/
  74. pw_sync_stl/
  75. pw_sync_threadx/
  76. pw_sys_io/
  77. pw_sys_io_arduino/
  78. pw_sys_io_baremetal_lm3s6965evb/
  79. pw_sys_io_baremetal_stm32f429/
  80. pw_sys_io_stdio/
  81. pw_target_runner/
  82. pw_thread/
  83. pw_thread_embos/
  84. pw_thread_freertos/
  85. pw_thread_stl/
  86. pw_thread_threadx/
  87. pw_tls_client/
  88. pw_tokenizer/
  89. pw_tool/
  90. pw_toolchain/
  91. pw_trace/
  92. pw_trace_tokenized/
  93. pw_transfer/
  94. pw_unit_test/
  95. pw_varint/
  96. pw_watch/
  97. pw_web_ui/
  98. targets/
  99. third_party/
  100. .dockerignore ⇨ .gitignore
  101. activate.sh ⇨ bootstrap.sh
  102. .bazelignore
  103. .bazelrc
  104. .clang-format
  105. .eslintrc.json
  106. .gitattributes
  107. .gitignore
  108. .gn
  109. .prettierrc.js
  110. .pylintrc
  111. activate.bat
  112. AUTHORS
  113. bootstrap.bat
  114. bootstrap.sh
  115. BUILD
  116. BUILD.gn
  117. BUILDCONFIG.gn
  118. CMakeLists.txt
  119. LICENSE
  120. modules.gni
  121. OWNERS
  122. package.json
  123. PW_PLUGINS
  124. README.md
  125. tsconfig.json
  126. WORKSPACE
  127. yarn.lock
README.md

See our website: http://pigweed.dev