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0556-erts-Make-enif_consume_timeslice-no-op-on-...
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File 0556-erts-Make-enif_consume_timeslice-no-op-on-dirty-sche.patch of Package erlang
From 2697f7d469d2cb0944af976b4f4ac7f5db0dc6aa Mon Sep 17 00:00:00 2001 From: Sverker Eriksson <sverker@erlang.org> Date: Mon, 18 Feb 2019 20:08:27 +0100 Subject: [PATCH] erts: Make enif_consume_timeslice no-op on dirty sched --- erts/emulator/beam/erl_nif.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index 17041cc91c..ebef485b04 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -2701,8 +2701,12 @@ int enif_consume_timeslice(ErlNifEnv* env, int percent) { Process *proc; Sint reds; + int sched; - execution_state(env, &proc, NULL); + execution_state(env, &proc, &sched); + + if (sched < 0) + return 0; /* no-op on dirty scheduler */ ASSERT(is_proc_bound(env) && percent >= 1 && percent <= 100); if (percent < 1) percent = 1; -- 2.16.4
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