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commit918eb78ade2f36a05228e261ce243d8f08a8d8de[log] [tgz]
authorJohn Alabi <jalabi@google.com>Fri Sep 12 19:05:17 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Sep 12 19:05:17 2025 -0700
treeef149d30e5ad38ea0310441448c0840570fb81c5
parenta05539c9714645d748576164f740c762dbbfc571 [diff]
pw_metric: Document the new MetricService.Walk RPC

Update the documentation to reflect the addition of the new paginated,
unary MetricService.Walk RPC.

The documentation now clarifies the distinction between the two export
methods. It positions the new Walk RPC as the preferred method for
asynchronous transports that require client-driven flow control, and
for fetching large metric sets that may not fit within a single
transport MTU.

Specifically, this update:
* Adds a new subsection describing the MetricService.Walk method.
* Updates the "Metric Parser" section to include the new
get_all_metrics() Python function.
* Marks the roadmap item for this feature as completed.

Change-Id: Ia0b1db27d4e0ee3a5e434a4467689035af6e2acf
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320994
Commit-Queue: John Alabi <jalabi@google.com>
Pigweed-Auto-Submit: John Alabi <jalabi@google.com>
Reviewed-by: Carlos Chinchilla <cachinchilla@google.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: ef149d30e5ad38ea0310441448c0840570fb81c5
  1. .allstar/
  2. .gemini/
  3. .github/
  4. .vscode/
  5. build_overrides/
  6. docker/
  7. docs/
  8. kudzu/
  9. pw_alignment/
  10. pw_allocator/
  11. pw_analog/
  12. pw_android_toolchain/
  13. pw_arduino_build/
  14. pw_assert/
  15. pw_assert_basic/
  16. pw_assert_fuchsia/
  17. pw_assert_log/
  18. pw_assert_tokenized/
  19. pw_assert_trap/
  20. pw_assert_zephyr/
  21. pw_async/
  22. pw_async2/
  23. pw_async2_basic/
  24. pw_async2_epoll/
  25. pw_async_basic/
  26. pw_async_fuchsia/
  27. pw_atomic/
  28. pw_base64/
  29. pw_bloat/
  30. pw_blob_store/
  31. pw_bluetooth/
  32. pw_bluetooth_hci/
  33. pw_bluetooth_profiles/
  34. pw_bluetooth_proxy/
  35. pw_bluetooth_sapphire/
  36. pw_boot/
  37. pw_boot_cortex_m/
  38. pw_build/
  39. pw_build_android/
  40. pw_build_info/
  41. pw_build_mcuxpresso/
  42. pw_bytes/
  43. pw_change/
  44. pw_channel/
  45. pw_checksum/
  46. pw_chre/
  47. pw_chrono/
  48. pw_chrono_embos/
  49. pw_chrono_freertos/
  50. pw_chrono_rp2040/
  51. pw_chrono_stl/
  52. pw_chrono_threadx/
  53. pw_chrono_zephyr/
  54. pw_cli/
  55. pw_cli_analytics/
  56. pw_clock_tree/
  57. pw_clock_tree_mcuxpresso/
  58. pw_compilation_testing/
  59. pw_config_loader/
  60. pw_console/
  61. pw_containers/
  62. pw_cpu_exception/
  63. pw_cpu_exception_cortex_m/
  64. pw_cpu_exception_risc_v/
  65. pw_crypto/
  66. pw_digital_io/
  67. pw_digital_io_linux/
  68. pw_digital_io_mcuxpresso/
  69. pw_digital_io_rp2040/
  70. pw_digital_io_zephyr/
  71. pw_display/
  72. pw_dma_mcuxpresso/
  73. pw_docgen/
  74. pw_doctor/
  75. pw_elf/
  76. pw_emu/
  77. pw_env_setup/
  78. pw_env_setup_zephyr/
  79. pw_file/
  80. pw_flatbuffers/
  81. pw_format/
  82. pw_function/
  83. pw_fuzzer/
  84. pw_grpc/
  85. pw_hdlc/
  86. pw_hex_dump/
  87. pw_i2c/
  88. pw_i2c_linux/
  89. pw_i2c_mcuxpresso/
  90. pw_i2c_rp2040/
  91. pw_i2c_zephyr/
  92. pw_ide/
  93. pw_interrupt/
  94. pw_interrupt_cortex_m/
  95. pw_interrupt_freertos/
  96. pw_interrupt_zephyr/
  97. pw_intrusive_ptr/
  98. pw_json/
  99. pw_kernel/
  100. pw_kvs/
  101. pw_libc/
  102. pw_libcxx/
  103. pw_log/
  104. pw_log_android/
  105. pw_log_basic/
  106. pw_log_fuchsia/
  107. pw_log_null/
  108. pw_log_rpc/
  109. pw_log_string/
  110. pw_log_tokenized/
  111. pw_log_zephyr/
  112. pw_malloc/
  113. pw_malloc_freelist/
  114. pw_malloc_freertos/
  115. pw_metric/
  116. pw_minimal_cpp_stdlib/
  117. pw_module/
  118. pw_multibuf/
  119. pw_multisink/
  120. pw_numeric/
  121. pw_package/
  122. pw_perf_test/
  123. pw_persistent_ram/
  124. pw_polyfill/
  125. pw_preprocessor/
  126. pw_presubmit/
  127. pw_protobuf/
  128. pw_protobuf_compiler/
  129. pw_random/
  130. pw_random_fuchsia/
  131. pw_result/
  132. pw_ring_buffer/
  133. pw_router/
  134. pw_rpc/
  135. pw_rpc_transport/
  136. pw_rust/
  137. pw_sensor/
  138. pw_snapshot/
  139. pw_software_update/
  140. pw_span/
  141. pw_spi/
  142. pw_spi_linux/
  143. pw_spi_mcuxpresso/
  144. pw_spi_rp2040/
  145. pw_status/
  146. pw_stm32cube_build/
  147. pw_stream/
  148. pw_stream_shmem_mcuxpresso/
  149. pw_stream_uart_linux/
  150. pw_stream_uart_mcuxpresso/
  151. pw_string/
  152. pw_symbolizer/
  153. pw_sync/
  154. pw_sync_baremetal/
  155. pw_sync_embos/
  156. pw_sync_freertos/
  157. pw_sync_stl/
  158. pw_sync_threadx/
  159. pw_sync_zephyr/
  160. pw_sys_io/
  161. pw_sys_io_ambiq_sdk/
  162. pw_sys_io_arduino/
  163. pw_sys_io_baremetal_lm3s6965evb/
  164. pw_sys_io_baremetal_stm32f429/
  165. pw_sys_io_emcraft_sf2/
  166. pw_sys_io_mcuxpresso/
  167. pw_sys_io_rp2040/
  168. pw_sys_io_stdio/
  169. pw_sys_io_stm32cube/
  170. pw_sys_io_zephyr/
  171. pw_system/
  172. pw_target_runner/
  173. pw_thread/
  174. pw_thread_embos/
  175. pw_thread_freertos/
  176. pw_thread_stl/
  177. pw_thread_threadx/
  178. pw_thread_zephyr/
  179. pw_tls_client/
  180. pw_tls_client_boringssl/
  181. pw_tls_client_mbedtls/
  182. pw_tokenizer/
  183. pw_toolchain/
  184. pw_trace/
  185. pw_trace_tokenized/
  186. pw_transfer/
  187. pw_uart/
  188. pw_uart_mcuxpresso/
  189. pw_unit_test/
  190. pw_uuid/
  191. pw_varint/
  192. pw_watch/
  193. pw_web/
  194. pw_work_queue/
  195. seed/
  196. targets/
  197. third_party/
  198. ts/
  199. zephyr/
  200. .dockerignore ⇨ .gitignore
  201. activate.fish ⇨ bootstrap.fish
  202. activate.sh ⇨ bootstrap.sh
  203. .bazelignore
  204. .bazelrc
  205. .bazelversion
  206. .black.toml
  207. .clang-format
  208. .clang-tidy
  209. .eslintrc.cjs
  210. .git-blame-ignore-revs
  211. .gitattributes
  212. .gitignore
  213. .gn
  214. .mypy.ini
  215. .prettierignore
  216. .prettierrc.cjs
  217. .pw_ide.yaml
  218. .pylintrc
  219. .ruff.toml
  220. activate.bat
  221. Android.bp
  222. AUTHORS
  223. bootstrap.bat
  224. bootstrap.fish
  225. bootstrap.sh
  226. BUILD.bazel
  227. BUILD.gn
  228. BUILDCONFIG.gn
  229. CMakeLists.txt
  230. GEMINI.md
  231. go.mod
  232. go.sum
  233. jest.config.ts
  234. Kconfig.zephyr
  235. LICENSE
  236. MODULE.bazel
  237. MODULE.bazel.lock
  238. modules.gni
  239. OWNERS
  240. package-lock.json
  241. package.json
  242. pigweed.json
  243. PIGWEED_MODULES
  244. pnpm-lock.yaml
  245. pw
  246. README.md
  247. REPO.bazel
  248. rollup-protos.config.js
  249. rollup.config.js
  250. rustfmt.toml
  251. tsconfig.json
  252. workflows.json
  253. WORKSPACE
  254. WORKSPACE_OWNERS
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