From c6cb0293ba33e1671f8ed670d5add082e5ee674a Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Wed, 30 Oct 2013 17:29:18 +0100 Subject: Functionality for disabling garbage collection Being able to disable garbage collection over context switches vastly simplifies implementation of yielding native code that builds large or complex data structures on the heap. This since the heap can be left in an inconsistent state over the context switch. --- erts/emulator/beam/erl_bif_info.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'erts/emulator/beam/erl_bif_info.c') diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 673dfc658c..f5893f9291 100755 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -3593,6 +3593,19 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) BIF_RET(am_true); } } + else if (ERTS_IS_ATOM_STR("gc_state", BIF_ARG_1)) { + /* Used by process_SUITE (emulator) */ + int res, enable; + + switch (BIF_ARG_2) { + case am_true: enable = 1; break; + case am_false: enable = 0; break; + default: BIF_ERROR(BIF_P, BADARG); break; + } + + res = erts_set_gc_state(BIF_P, enable); + BIF_RET(res ? am_true : am_false); + } else if (ERTS_IS_ATOM_STR("send_fake_exit_signal", BIF_ARG_1)) { /* Used by signal_SUITE (emulator) */ -- cgit v1.2.3 From 1f09936f34f5daee534bbfde4f16e5bbb434b6c4 Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Wed, 13 Nov 2013 18:46:17 +0100 Subject: erts: Yield after trapping term_to_binary if gc has been ordered or if "too much" offheap binaries has been built --- erts/emulator/beam/erl_bif_info.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'erts/emulator/beam/erl_bif_info.c') diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index f5893f9291..39bbd6b182 100755 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -3603,8 +3603,9 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2) default: BIF_ERROR(BIF_P, BADARG); break; } - res = erts_set_gc_state(BIF_P, enable); - BIF_RET(res ? am_true : am_false); + res = (BIF_P->flags & F_DISABLE_GC) ? am_false : am_true; + erts_set_gc_state(BIF_P, enable); + BIF_RET(res); } else if (ERTS_IS_ATOM_STR("send_fake_exit_signal", BIF_ARG_1)) { /* Used by signal_SUITE (emulator) */ -- cgit v1.2.3