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| author | Giampaolo Rodola <g.rodola@gmail.com> | 2019-05-30 06:05:41 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-05-30 06:05:41 (GMT) |
| commit | 413d955f8ec88a7183f91d7ad8b0ff7def803de3 (patch) | |
| tree | 5e82b37895fa363bf445df67f61a56ff5553de61 /Doc | |
| parent | a16387ab2d85f19665920bb6ff91a7e57f59dd2a (diff) | |
| download | cpython-413d955f8ec88a7183f91d7ad8b0ff7def803de3.zip cpython-413d955f8ec88a7183f91d7ad8b0ff7def803de3.tar.gz cpython-413d955f8ec88a7183f91d7ad8b0ff7def803de3.tar.bz2 | |
bpo-36610: shutil.copyfile(): use sendfile() on Linux only (GH-13675)
...and avoid using it on Solaris as it can raise EINVAL if offset is equal or bigger than the size of the file
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/shutil.rst | 3 | ||||
| -rw-r--r-- | Doc/whatsnew/3.8.rst | 2 |
2 files changed, 2 insertions, 3 deletions
diff --git a/Doc/library/shutil.rst b/Doc/library/shutil.rst index 4af5a16..dcb2a16 100644 --- a/Doc/library/shutil.rst +++ b/Doc/library/shutil.rst @@ -420,8 +420,7 @@ the use of userspace buffers in Python as in "``outfd.write(infd.read())``". On macOS `fcopyfile`_ is used to copy the file content (not metadata). -On Linux, Solaris and other POSIX platforms where :func:`os.sendfile` supports -copies between 2 regular file descriptors :func:`os.sendfile` is used. +On Linux :func:`os.sendfile` is used. On Windows :func:`shutil.copyfile` uses a bigger default buffer size (1 MiB instead of 64 KiB) and a :func:`memoryview`-based variant of diff --git a/Doc/whatsnew/3.8.rst b/Doc/whatsnew/3.8.rst index 5ee9cf0..98f0c34 100644 --- a/Doc/whatsnew/3.8.rst +++ b/Doc/whatsnew/3.8.rst @@ -772,7 +772,7 @@ Optimizations * :func:`shutil.copyfile`, :func:`shutil.copy`, :func:`shutil.copy2`, :func:`shutil.copytree` and :func:`shutil.move` use platform-specific - "fast-copy" syscalls on Linux, macOS and Solaris in order to copy the file + "fast-copy" syscalls on Linux and macOS in order to copy the file more efficiently. "fast-copy" means that the copying operation occurs within the kernel, avoiding the use of userspace buffers in Python as in |