Merge branch 'ta/sendfile/OTP-9240'

* ta/sendfile/OTP-9240: (31 commits)
  Add sendfile server printouts
  Skip recv/send during tests for fallback platforms
  Remove header/trailer support
  Remove windows implementation
  Expand sendfile documentation
  Only allow tcp sockets as target for sendfile
  Move sendfile api to file module
  Preliminary work on header/trailer
  Use free_sendfile explicitly for non-async
  Remove debug printouts
  Add tests for send/recv/sendfile interactions
  Remove tests for file_server sendfile
  sendfile caller now has to be the controlling_process
  Remove support for file_server, sendfile has to be raw
  Set chunk size to 3 GB
  Change type of fd to be ErlDrvEvent
  Add ifdef's for HAVE_SENDFILE
  Fix freebsd support for sendfile
  Change nbytes to 64 bit
  Implement ignorefd for TCP
  ...

1 files changed, 17 insertions, 0 deletions

diff --git a/erts/emulator/drivers/common/erl_efile.h b/erts/emulator/drivers/common/erl_efile.h
index 3097ded3f1..349ab0e17b 100644
--- a/erts/emulator/drivers/common/erl_efile.h
+++ b/erts/emulator/drivers/common/erl_efile.h
@@ -118,6 +118,19 @@ typedef struct _Efile_info {
 				 */
 } Efile_info;
 
+
+#ifdef HAVE_SENDFILE
+/*
+ * Described the structure of header/trailers for sendfile
+ */
+struct t_sendfile_hdtl {
+    SysIOVec *headers;
+    int hdr_cnt;
+    SysIOVec *trailers;
+    int trl_cnt;
+};
+#endif /* HAVE_SENDFILE */
+
 /*
  * Functions.
  */
@@ -162,3 +175,7 @@ int efile_symlink(Efile_error* errInfo, char* old, char* new);
 int efile_may_openfile(Efile_error* errInfo, char *name);
 int efile_fadvise(Efile_error* errInfo, int fd, Sint64 offset, Sint64 length,
 		  int advise);
+#ifdef HAVE_SENDFILE
+int efile_sendfile(Efile_error* errInfo, int in_fd, int out_fd,
+		      off_t *offset, Uint64 *nbytes, struct t_sendfile_hdtl *hdtl);
+#endif /* HAVE_SENDFILE */