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author | Rickard Green <[email protected]> | 2015-11-19 17:07:06 +0100 |
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committer | Rickard Green <[email protected]> | 2015-12-08 14:47:46 +0100 |
commit | a5dd6499d53ed596e2f8aa17ee35ff87cd32fe60 (patch) | |
tree | 26d671ac23cc2934706981318b0f7d6fee5affd4 /erts/emulator/beam/erl_process.c | |
parent | cc3cc025f43a00281d2f836e12c2e1627cd50145 (diff) | |
download | otp-a5dd6499d53ed596e2f8aa17ee35ff87cd32fe60.tar.gz otp-a5dd6499d53ed596e2f8aa17ee35ff87cd32fe60.tar.bz2 otp-a5dd6499d53ed596e2f8aa17ee35ff87cd32fe60.zip |
Distinguish between GC disabled by BIFs and other disabled GC
Processes remember heap fragments that are known to be fully
live due to creation in a just called BIF that yields in the
live_hf_end field. This field must not be used if we have not
disabled GC in a BIF. F_DELAY_GC has been introduced in order
to distinguish between to two different scenarios.
- F_DISABLE_GC should *only* be used by BIFs. This when
the BIF needs to yield while preventig a GC.
- F_DELAY_GC should only be used when GC is temporarily
disabled while the process is scheduled. A process must
not be scheduled out while F_DELAY_GC is set.
Diffstat (limited to 'erts/emulator/beam/erl_process.c')
-rw-r--r-- | erts/emulator/beam/erl_process.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index ebe9361b8d..d17355207b 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -9262,6 +9262,8 @@ Process *schedule(Process *p, int calls) } else { sched_out_proc: + ASSERT(!(p->flags & F_DELAY_GC)); + #ifdef ERTS_SMP ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p); esdp = p->scheduler_data; |