Add os.splice and flags on Linux for Python 3.10+ (#10771)

stdlib/os/__init__.pyi

@@ -1062,9 +1062,20 @@ if sys.version_info >= (3, 10) and sys.platform == "linux":
     EFD_CLOEXEC: int
     EFD_NONBLOCK: int
     EFD_SEMAPHORE: int
+    SPLICE_F_MORE: int
+    SPLICE_F_MOVE: int
+    SPLICE_F_NONBLOCK: int
     def eventfd(initval: int, flags: int = 524288) -> FileDescriptor: ...
     def eventfd_read(fd: FileDescriptor) -> int: ...
     def eventfd_write(fd: FileDescriptor, value: int) -> None: ...
+    def splice(
+        src: FileDescriptor,
+        dst: FileDescriptor,
+        count: int,
+        offset_src: int | None = ...,
+        offset_dst: int | None = ...,
+        flags: int = 0,
+    ) -> int: ...
 
 if sys.version_info >= (3, 12) and sys.platform == "linux":
     CLONE_FILES: int

stdlib/posix.pyi

@@ -242,9 +242,13 @@ if sys.platform != "win32":
                 EFD_CLOEXEC as EFD_CLOEXEC,
                 EFD_NONBLOCK as EFD_NONBLOCK,
                 EFD_SEMAPHORE as EFD_SEMAPHORE,
+                SPLICE_F_MORE as SPLICE_F_MORE,
+                SPLICE_F_MOVE as SPLICE_F_MOVE,
+                SPLICE_F_NONBLOCK as SPLICE_F_NONBLOCK,
                 eventfd as eventfd,
                 eventfd_read as eventfd_read,
                 eventfd_write as eventfd_write,
+                splice as splice,
             )
     else:
         from os import chflags as chflags, lchflags as lchflags, lchmod as lchmod

tests/stubtest_allowlists/linux-py310.txt

@@ -1,11 +1,7 @@
 _?curses.color_pair
-(os|posix).SPLICE_F_MORE
-(os|posix).SPLICE_F_MOVE
-(os|posix).SPLICE_F_NONBLOCK
 (os|posix).setresgid
 (os|posix).setresuid
 (os|posix).sendfile
-(os|posix).splice
 signal.sigtimedwait
 signal.sigwaitinfo
 

tests/stubtest_allowlists/linux-py311.txt

@@ -1,12 +1,8 @@
 _?curses.color_pair
 mmap.MAP_STACK
-(os|posix).SPLICE_F_MORE
-(os|posix).SPLICE_F_MOVE
-(os|posix).SPLICE_F_NONBLOCK
 (os|posix).setresgid
 (os|posix).setresuid
 (os|posix).sendfile
-(os|posix).splice
 signal.sigtimedwait
 signal.sigwaitinfo
 xxlimited.Xxo.x_exports

tests/stubtest_allowlists/linux-py312.txt

@@ -4,10 +4,6 @@ _posixsubprocess.fork_exec
 (os|posix).setns
 (os|posix).setresgid
 (os|posix).setresuid
-(os|posix).splice
-(os|posix).SPLICE_F_MORE
-(os|posix).SPLICE_F_MOVE
-(os|posix).SPLICE_F_NONBLOCK
 fcntl.FICLONE
 fcntl.FICLONERANGE
 mmap.MAP_STACK