components/python/python39/patches/23-sendfile-reenable.patch

   1 All sendfile differences between Linux and Solaris were hopefully taken care
   2 of, and hence we can reenable it within the shutil module.
   3
   4 This was requested upstream as well:
   5 https://bugs.python.org/issue41843
   6
   7 --- Python-3.9.2/Lib/shutil.py
   8 +++ Python-3.9.2/Lib/shutil.py
   9 @@ -50,7 +50,7 @@ elif _WINDOWS:
  10      import nt
  11
  12  COPY_BUFSIZE = 1024 * 1024 if _WINDOWS else 64 * 1024
  13 -_USE_CP_SENDFILE = hasattr(os, "sendfile") and sys.platform.startswith("linux")
  14 +_USE_CP_SENDFILE = hasattr(os, "sendfile")
  15  _HAS_FCOPYFILE = posix and hasattr(posix, "_fcopyfile")  # macOS
  16
  17  # CMD defaults in Windows 10
  18 --- Python-3.9.2/Doc/library/shutil.rst
  19 +++ Python-3.9.2/Doc/library/shutil.rst
  20 @@ -453,7 +453,8 @@ the use of userspace buffers in Python a
  21
  22  On macOS `fcopyfile`_ is used to copy the file content (not metadata).
  23
  24 -On Linux :func:`os.sendfile` is used.
  25 +On Linux, Solaris and other POSIX platforms where :func:`os.sendfile` supports
  26 +copies between 2 regular file descriptors :func:`os.sendfile` is used.
  27
  28  On Windows :func:`shutil.copyfile` uses a bigger default buffer size (1 MiB
  29  instead of 64 KiB) and a :func:`memoryview`-based variant of