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authorSverker Eriksson <[email protected]>2014-03-13 15:23:44 +0100
committerSverker Eriksson <[email protected]>2014-03-14 15:08:23 +0100
commita996e168bfebe599cfe393cd132a87984d905d84 (patch)
tree5286c1c11e53c3372abb050ad00f33555babbd5b /erts/emulator
parentc543d5bff7fb23c3f44cc4817c0654117de78919 (diff)
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erts: Add distribution capability flag for maps DFLAG_MAP_TAG
This is just a preparation to allow detection of older nodes that do not understand maps (R16 and older).
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/dist.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h
index 0519a9225e..f32b999198 100644
--- a/erts/emulator/beam/dist.h
+++ b/erts/emulator/beam/dist.h
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2014. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -40,6 +40,7 @@
#define DFLAG_SMALL_ATOM_TAGS 0x4000
#define DFLAG_INTERNAL_TAGS 0x8000
#define DFLAG_UTF8_ATOMS 0x10000
+#define DFLAG_MAP_TAG 0x20000
/* All flags that should be enabled when term_to_binary/1 is used. */
#define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES \
@@ -47,7 +48,8 @@
| DFLAG_NEW_FLOATS \
| DFLAG_EXTENDED_PIDS_PORTS \
| DFLAG_EXPORT_PTR_TAG \
- | DFLAG_BIT_BINARIES)
+ | DFLAG_BIT_BINARIES \
+ | DFLAG_MAP_TAG)
/* opcodes used in distribution messages */
#define DOP_LINK 1