pw_stream: Rework the stream classes

- Derive all stream classes from a common base Stream class.
- Introduce Seek() and Tell() methods.
- Implement helper functions for seeking in pw_stream/seek.h.
- Expand the pw_stream documentation.
- Update existing Stream classes.

Requires: pigweed-internal:14760
Change-Id: I55671f0a14c73deef76cd0e17e831ec62462458a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/56820
Pigweed-Auto-Submit: Wyatt Hepler <hepler@google.com>
Commit-Queue: Wyatt Hepler <hepler@google.com>
Reviewed-by: Ewout van Bekkum <ewout@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
Reviewed-by: Armando Montanez <amontanez@google.com>
18 files changed
tree: e089079d9c5e93dcf4478a3cacd5597c1d7db8e5
  1. build_overrides/
  2. docker/
  3. docs/
  4. pw_allocator/
  5. pw_analog/
  6. pw_android_toolchain/
  7. pw_arduino_build/
  8. pw_assert/
  9. pw_assert_basic/
  10. pw_assert_log/
  11. pw_base64/
  12. pw_bloat/
  13. pw_blob_store/
  14. pw_boot/
  15. pw_boot_cortex_m/
  16. pw_build/
  17. pw_build_info/
  18. pw_bytes/
  19. pw_checksum/
  20. pw_chrono/
  21. pw_chrono_embos/
  22. pw_chrono_freertos/
  23. pw_chrono_stl/
  24. pw_chrono_threadx/
  25. pw_cli/
  26. pw_console/
  27. pw_containers/
  28. pw_cpu_exception/
  29. pw_cpu_exception_cortex_m/
  30. pw_crypto/
  31. pw_docgen/
  32. pw_doctor/
  33. pw_env_setup/
  34. pw_function/
  35. pw_fuzzer/
  36. pw_hdlc/
  37. pw_hex_dump/
  38. pw_i2c/
  39. pw_interrupt/
  40. pw_interrupt_cortex_m/
  41. pw_kvs/
  42. pw_libc/
  43. pw_log/
  44. pw_log_basic/
  45. pw_log_null/
  46. pw_log_rpc/
  47. pw_log_tokenized/
  48. pw_malloc/
  49. pw_malloc_freelist/
  50. pw_metric/
  51. pw_minimal_cpp_stdlib/
  52. pw_module/
  53. pw_multisink/
  54. pw_package/
  55. pw_persistent_ram/
  56. pw_polyfill/
  57. pw_preprocessor/
  58. pw_presubmit/
  59. pw_protobuf/
  60. pw_protobuf_compiler/
  61. pw_random/
  62. pw_result/
  63. pw_ring_buffer/
  64. pw_router/
  65. pw_rpc/
  66. pw_snapshot/
  67. pw_span/
  68. pw_status/
  69. pw_stm32cube_build/
  70. pw_stream/
  71. pw_string/
  72. pw_symbolizer/
  73. pw_sync/
  74. pw_sync_baremetal/
  75. pw_sync_embos/
  76. pw_sync_freertos/
  77. pw_sync_stl/
  78. pw_sync_threadx/
  79. pw_sys_io/
  80. pw_sys_io_arduino/
  81. pw_sys_io_baremetal_lm3s6965evb/
  82. pw_sys_io_baremetal_stm32f429/
  83. pw_sys_io_stdio/
  84. pw_target_runner/
  85. pw_thread/
  86. pw_thread_embos/
  87. pw_thread_freertos/
  88. pw_thread_stl/
  89. pw_thread_threadx/
  90. pw_tls_client/
  91. pw_tls_client_boringssl/
  92. pw_tls_client_mbedtls/
  93. pw_tokenizer/
  94. pw_tool/
  95. pw_toolchain/
  96. pw_trace/
  97. pw_trace_tokenized/
  98. pw_transfer/
  99. pw_unit_test/
  100. pw_varint/
  101. pw_watch/
  102. pw_web_ui/
  103. pw_work_queue/
  104. targets/
  105. third_party/
  106. .bazelignore
  107. .bazelrc
  108. .clang-format
  109. .clang-tidy
  110. .eslintrc.json
  111. .gitattributes
  112. .gitignore
  113. .gn
  114. .prettierrc.js
  115. .pylintrc
  116. activate.bat
  117. AUTHORS
  118. bootstrap.bat
  119. bootstrap.sh
  120. BUILD.bazel
  121. BUILD.gn
  122. BUILDCONFIG.gn
  123. CMakeLists.txt
  124. LICENSE
  125. modules.gni
  126. OWNERS
  127. package.json
  128. PW_PLUGINS
  129. README.md
  130. tsconfig.json
  131. WORKSPACE
  132. yarn.lock
README.md

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