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| author | Sverker Eriksson <[email protected]> | 2018-02-26 15:36:34 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2018-03-02 19:16:48 +0100 |
| commit | 337919abe6ed9a97e15d5f471ef8f79d44cb8363 (patch) | |
| tree | ea9669087d2a27cf1fede34ba802995b9d0d56e1 /erts/emulator/beam/dist.h | |
| parent | 9a472f2899519234198f677269c5e70362bec351 (diff) | |
| download | otp-337919abe6ed9a97e15d5f471ef8f79d44cb8363.tar.gz otp-337919abe6ed9a97e15d5f471ef8f79d44cb8363.tar.bz2 otp-337919abe6ed9a97e15d5f471ef8f79d44cb8363.zip | |
erts,kernel: Add erts_internal:get_dflags/0
for kernel to ask erts about distribution flags
and keep this info in one place.
Diffstat (limited to 'erts/emulator/beam/dist.h')
| -rw-r--r-- | erts/emulator/beam/dist.h | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h index ea4697815f..202457bb3b 100644 --- a/erts/emulator/beam/dist.h +++ b/erts/emulator/beam/dist.h @@ -40,26 +40,51 @@ #define DFLAG_UNICODE_IO 0x1000 #define DFLAG_DIST_HDR_ATOM_CACHE 0x2000 #define DFLAG_SMALL_ATOM_TAGS 0x4000 -#define DFLAG_INTERNAL_TAGS 0x8000 +#define DFLAG_INTERNAL_TAGS 0x8000 /* used by ETS 'compressed' option */ #define DFLAG_UTF8_ATOMS 0x10000 #define DFLAG_MAP_TAG 0x20000 #define DFLAG_BIG_CREATION 0x40000 #define DFLAG_SEND_SENDER 0x80000 -#define DFLAG_NO_MAGIC 0x100000 +#define DFLAG_NO_MAGIC 0x100000 /* internal for pending connection */ -/* Mandatory flags for distribution (sync with dist_util.erl) */ +/* Mandatory flags for distribution */ #define DFLAG_DIST_MANDATORY (DFLAG_EXTENDED_REFERENCES \ | DFLAG_EXTENDED_PIDS_PORTS \ | DFLAG_UTF8_ATOMS \ | DFLAG_NEW_FUN_TAGS) -/* Additional optimistic flags when encoding toward pending connection */ -#define DFLAG_DIST_HOPEFULLY (DFLAG_NO_MAGIC \ - | DFLAG_EXPORT_PTR_TAG \ +/* + * Additional optimistic flags when encoding toward pending connection. + * If remote node does not supporting these (erl_interface) + * then we will need to transcode all messages enqueued before + * connection setup was finished. + */ +#define DFLAG_DIST_HOPEFULLY (DFLAG_EXPORT_PTR_TAG \ | DFLAG_BIT_BINARIES \ | DFLAG_DIST_MONITOR \ | DFLAG_DIST_MONITOR_NAME) +/* Our preferred set of flags. Used for connection setup handshake */ +#define DFLAG_DIST_DEFAULT (DFLAG_DIST_MANDATORY | DFLAG_DIST_HOPEFULLY \ + | DFLAG_FUN_TAGS \ + | DFLAG_NEW_FLOATS \ + | DFLAG_UNICODE_IO \ + | DFLAG_DIST_HDR_ATOM_CACHE \ + | DFLAG_SMALL_ATOM_TAGS \ + | DFLAG_UTF8_ATOMS \ + | DFLAG_MAP_TAG \ + | DFLAG_BIG_CREATION \ + | DFLAG_SEND_SENDER) + +/* Flags addable by local distr implementations */ +#define DFLAG_DIST_ADDABLE DFLAG_DIST_DEFAULT + +/* Flags rejectable by local distr implementation */ +#define DFLAG_DIST_REJECTABLE (DFLAG_DIST_HDR_ATOM_CACHE \ + | DFLAG_HIDDEN_ATOM_CACHE \ + | DFLAG_ATOM_CACHE) + + /* All flags that should be enabled when term_to_binary/1 is used. */ #define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES \ | DFLAG_NEW_FUN_TAGS \ |