[all-commits] [llvm/llvm-project] bf02c8: [libc] Use file lock to join newline on RPC puts c...

[Joseph Huber via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: bf02c84cb8e7f60dfc12f822cd2bb71890b03101
      https://github.com/llvm/llvm-project/commit/bf02c84cb8e7f60dfc12f822cd2bb71890b03101
  Author: Joseph Huber <huberjn at outlook.com>
  Date:   2023-11-27 (Mon, 27 Nov 2023)

  Changed paths:
    M libc/utils/gpu/server/rpc_server.cpp

  Log Message:
  -----------
  [libc] Use file lock to join newline on RPC puts call (#73373)

Summary:
The puts call appends a newline. With multiple threads, this can be done
out of order such that another thread puts something before we finish
appending the newline. Add a flockfile and funlockfile to ensure that
the whole string is printed before another string can appear.