From 57551877d85ad7659201235e27498be42809fefb Mon Sep 17 00:00:00 2001 From: Lukas Larsson Date: Thu, 18 Feb 2016 13:52:54 +0100 Subject: erts: Add enif_send with NULL as msg env This is an optimization for reducing the number of heap fragments allocated when sending a message where the majority of the message payload is on the sending process' heap. --- erts/emulator/test/nif_SUITE.erl | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'erts/emulator/test/nif_SUITE.erl') diff --git a/erts/emulator/test/nif_SUITE.erl b/erts/emulator/test/nif_SUITE.erl index a185b72341..aa512b2360 100644 --- a/erts/emulator/test/nif_SUITE.erl +++ b/erts/emulator/test/nif_SUITE.erl @@ -1282,9 +1282,10 @@ send3_make_blob() -> repeat(N bsr 1, fun(_) -> grow_blob(MsgEnv,other_term(),rand:uniform(1 bsl 20)) end, void), - case (N band 1) of + case (N band 3) of 0 -> {term,copy_blob(MsgEnv)}; - 1 -> {msgenv,MsgEnv} + 1 -> {copy,copy_blob(MsgEnv)}; + _ -> {msgenv,MsgEnv} end end. @@ -1297,6 +1298,9 @@ send3_send(Pid, Msg) -> send3_send_nif(Pid, {term,Blob}) -> %%io:format("~p send term nif\n",[self()]), send_term(Pid, {blob, Blob}) =:= 1; +send3_send_nif(Pid, {copy,Blob}) -> + %%io:format("~p send term nif\n",[self()]), + send_copy_term(Pid, {blob, Blob}) =:= 1; send3_send_nif(Pid, {msgenv,MsgEnv}) -> %%io:format("~p send blob nif\n",[self()]), send3_blob(MsgEnv, Pid, blob) =:= 1. @@ -1305,6 +1309,10 @@ send3_send_bang(Pid, {term,Blob}) -> %%io:format("~p send term bang\n",[self()]), Pid ! {blob, Blob}, true; +send3_send_bang(Pid, {copy,Blob}) -> + %%io:format("~p send term bang\n",[self()]), + Pid ! {blob, Blob}, + true; send3_send_bang(Pid, {msgenv,MsgEnv}) -> %%io:format("~p send blob bang\n",[self()]), Pid ! {blob, copy_blob(MsgEnv)}, @@ -2062,6 +2070,7 @@ send_blob_thread(_,_,_) -> ?nif_stub. join_send_thread(_) -> ?nif_stub. copy_blob(_) -> ?nif_stub. send_term(_,_) -> ?nif_stub. +send_copy_term(_,_) -> ?nif_stub. reverse_list(_) -> ?nif_stub. echo_int(_) -> ?nif_stub. type_sizes() -> ?nif_stub. -- cgit v1.2.3