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authorSverker Eriksson <[email protected]>2017-02-14 18:26:31 +0100
committerSverker Eriksson <[email protected]>2017-02-14 18:26:31 +0100
commit118de47d703e303aea7f4575849a37c11416ba14 (patch)
tree211bbb6c24d6069c657d3b7ac7776be45631ec48 /erts/emulator/beam/dist.c
parentdd60ebfa1f2f6dc203deee59f95305291d06a619 (diff)
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erts: Add deallocation veto for magic destructors
A magic destructor can return 0 and thereby take control and prolong the lifetime of a magic binary.
Diffstat (limited to 'erts/emulator/beam/dist.c')
-rw-r--r--erts/emulator/beam/dist.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index 390f2a0db3..da1083100b 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -713,7 +713,7 @@ static void clear_dist_entry(DistEntry *dep)
}
}
-void erts_dsend_context_dtor(Binary* ctx_bin)
+int erts_dsend_context_dtor(Binary* ctx_bin)
{
ErtsSendContext* ctx = ERTS_MAGIC_BIN_DATA(ctx_bin);
switch (ctx->dss.phase) {
@@ -730,6 +730,8 @@ void erts_dsend_context_dtor(Binary* ctx_bin)
}
if (ctx->dep_to_deref)
erts_deref_dist_entry(ctx->dep_to_deref);
+
+ return 1;
}
Eterm erts_dsend_export_trap_context(Process* p, ErtsSendContext* ctx)