pw_async: Create HeapDispatcher, FunctionDispatcher

Create abstract class FunctionDispatcher that extends Dispatcher with
Post*() methods that take a TaskFunction instead of a task.

Create concrete class HeapDispatcher that implements FunctionDispatcher
using new/delete to manage Task memory.

Update Dispatcher::Cancel() docs to explain that tasks can be
canceled from within a TaskFunction.

Change-Id: I6cabe9614cb0b26c4e21f31b4d06713b4e936e42
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/135192
Reviewed-by: Taylor Cramer <cramertj@google.com>
Commit-Queue: Ben Lawson <benlawson@google.com>
12 files changed
tree: cbc3821f4125d295d21d1dab10eb13c8213c3cc6
  1. .allstar/
  2. .vscode/
  3. build_overrides/
  4. docker/
  5. docs/
  6. pw_alignment/
  7. pw_allocator/
  8. pw_analog/
  9. pw_android_toolchain/
  10. pw_arduino_build/
  11. pw_assert/
  12. pw_assert_basic/
  13. pw_assert_log/
  14. pw_assert_tokenized/
  15. pw_assert_zephyr/
  16. pw_async/
  17. pw_async_basic/
  18. pw_base64/
  19. pw_bloat/
  20. pw_blob_store/
  21. pw_bluetooth/
  22. pw_bluetooth_hci/
  23. pw_bluetooth_profiles/
  24. pw_boot/
  25. pw_boot_cortex_m/
  26. pw_build/
  27. pw_build_info/
  28. pw_build_mcuxpresso/
  29. pw_bytes/
  30. pw_checksum/
  31. pw_chrono/
  32. pw_chrono_embos/
  33. pw_chrono_freertos/
  34. pw_chrono_stl/
  35. pw_chrono_threadx/
  36. pw_chrono_zephyr/
  37. pw_cli/
  38. pw_compilation_testing/
  39. pw_console/
  40. pw_containers/
  41. pw_cpu_exception/
  42. pw_cpu_exception_cortex_m/
  43. pw_crypto/
  44. pw_digital_io/
  45. pw_docgen/
  46. pw_doctor/
  47. pw_env_setup/
  48. pw_file/
  49. pw_function/
  50. pw_fuzzer/
  51. pw_hdlc/
  52. pw_hex_dump/
  53. pw_i2c/
  54. pw_i2c_mcuxpresso/
  55. pw_ide/
  56. pw_interrupt/
  57. pw_interrupt_cortex_m/
  58. pw_interrupt_zephyr/
  59. pw_intrusive_ptr/
  60. pw_kvs/
  61. pw_libc/
  62. pw_log/
  63. pw_log_android/
  64. pw_log_basic/
  65. pw_log_null/
  66. pw_log_rpc/
  67. pw_log_string/
  68. pw_log_tokenized/
  69. pw_log_zephyr/
  70. pw_malloc/
  71. pw_malloc_freelist/
  72. pw_metric/
  73. pw_minimal_cpp_stdlib/
  74. pw_module/
  75. pw_multisink/
  76. pw_package/
  77. pw_perf_test/
  78. pw_persistent_ram/
  79. pw_polyfill/
  80. pw_preprocessor/
  81. pw_presubmit/
  82. pw_protobuf/
  83. pw_protobuf_compiler/
  84. pw_random/
  85. pw_result/
  86. pw_ring_buffer/
  87. pw_router/
  88. pw_rpc/
  89. pw_rust/
  90. pw_snapshot/
  91. pw_software_update/
  92. pw_span/
  93. pw_spi/
  94. pw_status/
  95. pw_stm32cube_build/
  96. pw_stream/
  97. pw_string/
  98. pw_symbolizer/
  99. pw_sync/
  100. pw_sync_baremetal/
  101. pw_sync_embos/
  102. pw_sync_freertos/
  103. pw_sync_stl/
  104. pw_sync_threadx/
  105. pw_sync_zephyr/
  106. pw_sys_io/
  107. pw_sys_io_arduino/
  108. pw_sys_io_baremetal_lm3s6965evb/
  109. pw_sys_io_baremetal_stm32f429/
  110. pw_sys_io_emcraft_sf2/
  111. pw_sys_io_mcuxpresso/
  112. pw_sys_io_pico/
  113. pw_sys_io_stdio/
  114. pw_sys_io_stm32cube/
  115. pw_sys_io_zephyr/
  116. pw_system/
  117. pw_target_runner/
  118. pw_thread/
  119. pw_thread_embos/
  120. pw_thread_freertos/
  121. pw_thread_stl/
  122. pw_thread_threadx/
  123. pw_thread_zephyr/
  124. pw_tls_client/
  125. pw_tls_client_boringssl/
  126. pw_tls_client_mbedtls/
  127. pw_tokenizer/
  128. pw_tool/
  129. pw_toolchain/
  130. pw_trace/
  131. pw_trace_tokenized/
  132. pw_transfer/
  133. pw_unit_test/
  134. pw_varint/
  135. pw_watch/
  136. pw_web/
  137. pw_work_queue/
  138. seed/
  139. targets/
  140. third_party/
  141. ts/
  142. zephyr/
  143. .bazelignore
  144. .bazelrc
  145. .black.toml
  146. .clang-format
  147. .clang-tidy
  148. .eslintrc.json
  149. .git-blame-ignore-revs
  150. .gitattributes
  151. .gitignore
  152. .gn
  153. .mypy.ini
  154. .prettierrc.js
  155. .pw_ide.yaml
  156. .pylintrc
  157. activate.bat
  158. Android.bp
  159. AUTHORS
  160. bootstrap.bat
  161. bootstrap.sh
  162. BUILD.bazel
  163. BUILD.gn
  164. BUILDCONFIG.gn
  165. CMakeLists.txt
  166. jest.config.ts
  167. Kconfig.zephyr
  168. LICENSE
  169. modules.gni
  170. OWNERS
  171. package-lock.json
  172. package.json
  173. pigweed.json
  174. PIGWEED_MODULES
  175. README.md
  176. rollup.config.js
  177. tsconfig.json
  178. WORKSPACE
README.md

Pigweed

Pigweed is an open source collection of embedded-targeted libraries–or as we like to call them, modules. These modules are building blocks and infrastructure that enable faster and more reliable development on small-footprint MMU-less 32-bit microcontrollers like the STMicroelectronics STM32L452 or the Nordic nRF52832.

For more information please see our website: https://pigweed.dev/.

Links