aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/dist.h
diff options
context:
space:
mode:
authorSverker Eriksson <[email protected]>2017-08-24 17:20:21 +0200
committerSverker Eriksson <[email protected]>2017-11-15 20:10:33 +0100
commitd736e87ff94ab8191f33dca55516e6c1d440b915 (patch)
tree900fd5ccbfbaae7e24bde62d66e9a43e1bd6b771 /erts/emulator/beam/dist.h
parent5857245406584b8bfcbdf0be450ad494a992d5c8 (diff)
downloadotp-d736e87ff94ab8191f33dca55516e6c1d440b915.tar.gz
otp-d736e87ff94ab8191f33dca55516e6c1d440b915.tar.bz2
otp-d736e87ff94ab8191f33dca55516e6c1d440b915.zip
Add optimistic DFLAG_DIST_HOPEFULLY for pending connections
to avoid tuple fallbacks for export funs and bitstrings. ToDo: Re-encode if receiver turn out to be erl_interface/jinterface.
Diffstat (limited to 'erts/emulator/beam/dist.h')
-rw-r--r--erts/emulator/beam/dist.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h
index 505d510473..f9a2037687 100644
--- a/erts/emulator/beam/dist.h
+++ b/erts/emulator/beam/dist.h
@@ -45,7 +45,7 @@
#define DFLAG_MAP_TAG 0x20000
#define DFLAG_BIG_CREATION 0x40000
#define DFLAG_SEND_SENDER 0x80000
-#define DFLAG_PENDING_CONNECTION 0x100000
+#define DFLAG_NO_MAGIC 0x100000
/* Mandatory flags for distribution (sync with dist_util.erl) */
#define DFLAG_DIST_MANDATORY (DFLAG_EXTENDED_REFERENCES \
@@ -53,6 +53,11 @@
| 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 \
+ | DFLAG_BIT_BINARIES)
+
/* 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 \
@@ -206,7 +211,7 @@ retry:
Eterm msg, conn_id;
dep->status = ERTS_DE_SFLG_PENDING;
- dep->flags = DFLAG_DIST_MANDATORY | DFLAG_PENDING_CONNECTION;
+ dep->flags = (DFLAG_DIST_MANDATORY | DFLAG_DIST_HOPEFULLY);
dep->connection_id++;
dep->connection_id &= ERTS_DIST_CON_ID_MASK;
conn_id = make_small(dep->connection_id);