1 files changed, 37 insertions, 0 deletions
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 247af1b..24d8be6 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -97,6 +97,10 @@ corresponding Unix manual entries for more information on calls.");
 #include <sys/sendfile.h>
 #endif
 
+#if defined(__APPLE__)
+#include <copyfile.h>
+#endif
+
 #ifdef HAVE_SCHED_H
 #include <sched.h>
 #endif
@@ -8742,6 +8746,34 @@ done:
 #endif /* HAVE_SENDFILE */
 
 
+#if defined(__APPLE__)
+/*[clinic input]
+os._fcopyfile
+
+    infd: int
+    outfd: int
+    flags: int
+    /
+
+Efficiently copy content or metadata of 2 regular file descriptors (OSX).
+[clinic start generated code]*/
+
+static PyObject *
+os__fcopyfile_impl(PyObject *module, int infd, int outfd, int flags)
+/*[clinic end generated code: output=8e8885c721ec38e3 input=aeb9456804eec879]*/
+{
+    int ret;
+
+    Py_BEGIN_ALLOW_THREADS
+    ret = fcopyfile(infd, outfd, NULL, flags);
+    Py_END_ALLOW_THREADS
+    if (ret < 0)
+        return posix_error();
+    Py_RETURN_NONE;
+}
+#endif
+
+
 /*[clinic input]
 os.fstat
 
@@ -12918,6 +12950,7 @@ static PyMethodDef posix_methods[] = {
     OS_UTIME_METHODDEF
     OS_TIMES_METHODDEF
     OS__EXIT_METHODDEF
+    OS__FCOPYFILE_METHODDEF
     OS_EXECV_METHODDEF
     OS_EXECVE_METHODDEF
     OS_SPAWNV_METHODDEF
@@ -13537,6 +13570,10 @@ all_ins(PyObject *m)
     if (PyModule_AddIntMacro(m, GRND_NONBLOCK)) return -1;
 #endif
 
+#if defined(__APPLE__)
+    if (PyModule_AddIntConstant(m, "_COPYFILE_DATA", COPYFILE_DATA)) return -1;
+#endif
+
     return 0;
 }