diff options
Diffstat (limited to 'erts/preloaded/src/prim_file.erl')
| -rw-r--r-- | erts/preloaded/src/prim_file.erl | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/erts/preloaded/src/prim_file.erl b/erts/preloaded/src/prim_file.erl index 30b7a5246a..7316e0be99 100644 --- a/erts/preloaded/src/prim_file.erl +++ b/erts/preloaded/src/prim_file.erl @@ -26,7 +26,8 @@ %% Generic file contents operations -export([open/2, close/1, datasync/1, sync/1, advise/4, position/2, truncate/1, - write/2, pwrite/2, pwrite/3, read/2, read_line/1, pread/2, pread/3, copy/3]). + write/2, pwrite/2, pwrite/3, read/2, read_line/1, pread/2, pread/3, + copy/3, sendfile/10]). %% Specialized file operations -export([open/1, open/3]). @@ -98,6 +99,7 @@ -define(FILE_READ_LINE, 29). -define(FILE_FDATASYNC, 30). -define(FILE_ADVISE, 31). +-define(FILE_SENDFILE, 32). %% Driver responses -define(FILE_RESP_OK, 0). @@ -537,7 +539,31 @@ write_file(File, Bin) when (is_list(File) orelse is_binary(File)) -> end; write_file(_, _) -> {error, badarg}. - + + +%% Returns {error, Reason} | {ok, BytesCopied} +%sendfile(_,_,_,_,_,_,_,_,_,_) -> +% {error, enotsup}; +sendfile(#file_descriptor{module = ?MODULE, data = {Port, _}}, + Dest, Offset, Bytes, _ChunkSize, Headers, Trailers, + _Nodiskio, _MNowait, _Sync) -> + case erlang:port_get_data(Dest) of + Data when Data == inet_tcp; Data == inet6_tcp -> + ok = inet:lock_socket(Dest,true), + {ok, DestFD} = prim_inet:getfd(Dest), + try drv_command(Port, [<<?FILE_SENDFILE, DestFD:32, + 0:8, + Offset:64/unsigned, + Bytes:64/unsigned, + (iolist_size(Headers)):32/unsigned, + (iolist_size(Trailers)):32/unsigned>>, + Headers,Trailers]) + after + ok = inet:lock_socket(Dest,false) + end; + _Else -> + {error,badarg} + end. %%%----------------------------------------------------------------- |