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{
  "commit": "904b2566398a143f60ad517926eea17a306f7f24",
  "tree": "91ed9cecf69056a3262d3e983eca3ce64ae25965",
  "parents": [
    "2668ef974c4ce4532b51b3b7011ae73cd98cb881"
  ],
  "author": {
    "name": "dcodeIO",
    "email": "dcode@dcode.io",
    "time": "Fri Aug 21 14:52:22 2026 -0700"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-worker@google.com",
    "time": "Thu Aug 27 12:18:41 2026 -0700"
  },
  "message": "Add Windows conformance runner and testee support (#28130)\n\nAdds Windows support for the conformance runner and C++ conformance testee. For the conformance runner, this splits `ForkPipeRunner` into POSIX and Win32 implementations. The testee is switched to portable `FILE*` I/O, with binary mode on Windows.\n\nAlso makes two related changes:\n* `waitpid(..., WEXITED)` is changed to `waitpid(..., 0)` because `WEXITED` is a `waitid()` flag. `waitpid(..., 0)` already waits for the child to terminate.\n* Adds `protobuf_configure_target` to the CMake conformance targets so they get the necessary target flags, e.g. `/utf-8`, which is important on Windows.\n\nOtherwise wires the change into CI so the Windows target functionally mirrors the existing macOS target.\n\nResolves this existing Windows TODO in `fork_pipe_runner.cc`:\n\n```\n// TODO: make this work on Windows, instead of using these\n// UNIX-specific APIs.\n//\n// There is a platform-agnostic API in\n//    src/google/protobuf/compiler/subprocess.h\n//\n// However that API only supports sending a single message to the subprocess.\n// We really want to be able to send messages and receive responses one at a\n// time:\n//\n// 1. Spawning a new process for each test would take way too long for thousands\n//    of tests and subprocesses like java that can take 100ms or more to start\n//    up.\n//\n// 2. Sending all the tests in one big message and receiving all results in one\n//    big message would take away our visibility about which test(s) caused a\n//    crash or other fatal error.  It would also give us only a single failure\n//    instead of all of them.\n```\n\nCloses #28130\n\n#test-continuous\n\nFUTURE_COPYBARA_INTEGRATE_REVIEW\u003dhttps://github.com/protocolbuffers/protobuf/pull/28130 from dcodeIO:windows 4872b82d608dff91672bad47229bb60542a8971a\nPiperOrigin-RevId: 968704895\n",
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